hbase-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From git-site-r...@apache.org
Subject [14/51] [partial] hbase-site git commit: Published site at 82d554e3783372cc6b05489452c815b57c06f6cd.
Date Tue, 09 May 2017 15:00:32 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/7ef4c5a9/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcServer.Connection.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcServer.Connection.html b/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcServer.Connection.html
index 2987e7b..7f61b54 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcServer.Connection.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcServer.Connection.html
@@ -135,1305 +135,1251 @@
 <span class="sourceLineNo">127</span>  private Listener listener = null;<a name="line.127"></a>
 <span class="sourceLineNo">128</span>  protected Responder responder = null;<a name="line.128"></a>
 <span class="sourceLineNo">129</span><a name="line.129"></a>
-<span class="sourceLineNo">130</span>  /**<a name="line.130"></a>
-<span class="sourceLineNo">131</span>   * Datastructure that holds all necessary to a method invocation and then afterward, carries<a name="line.131"></a>
-<span class="sourceLineNo">132</span>   * the result.<a name="line.132"></a>
-<span class="sourceLineNo">133</span>   */<a name="line.133"></a>
-<span class="sourceLineNo">134</span>  @InterfaceStability.Evolving<a name="line.134"></a>
-<span class="sourceLineNo">135</span>  public class Call extends RpcServer.Call {<a name="line.135"></a>
-<span class="sourceLineNo">136</span><a name="line.136"></a>
-<span class="sourceLineNo">137</span>    protected Responder responder;<a name="line.137"></a>
+<span class="sourceLineNo">130</span>  /** Listens on the socket. Creates jobs for the handler threads*/<a name="line.130"></a>
+<span class="sourceLineNo">131</span>  private class Listener extends Thread {<a name="line.131"></a>
+<span class="sourceLineNo">132</span><a name="line.132"></a>
+<span class="sourceLineNo">133</span>    private ServerSocketChannel acceptChannel = null; //the accept channel<a name="line.133"></a>
+<span class="sourceLineNo">134</span>    private Selector selector = null; //the selector that we use for the server<a name="line.134"></a>
+<span class="sourceLineNo">135</span>    private Reader[] readers = null;<a name="line.135"></a>
+<span class="sourceLineNo">136</span>    private int currentReader = 0;<a name="line.136"></a>
+<span class="sourceLineNo">137</span>    private final int readerPendingConnectionQueueLength;<a name="line.137"></a>
 <span class="sourceLineNo">138</span><a name="line.138"></a>
-<span class="sourceLineNo">139</span>    @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="NP_NULL_ON_SOME_PATH",<a name="line.139"></a>
-<span class="sourceLineNo">140</span>        justification="Can't figure why this complaint is happening... see below")<a name="line.140"></a>
-<span class="sourceLineNo">141</span>    Call(int id, final BlockingService service, final MethodDescriptor md,<a name="line.141"></a>
-<span class="sourceLineNo">142</span>        RequestHeader header, Message param, CellScanner cellScanner,<a name="line.142"></a>
-<span class="sourceLineNo">143</span>        RpcServer.Connection connection, long size, TraceInfo tinfo,<a name="line.143"></a>
-<span class="sourceLineNo">144</span>        final InetAddress remoteAddress, int timeout, CallCleanup reqCleanup,<a name="line.144"></a>
-<span class="sourceLineNo">145</span>        Responder responder) {<a name="line.145"></a>
-<span class="sourceLineNo">146</span>      super(id, service, md, header, param, cellScanner, connection, size,<a name="line.146"></a>
-<span class="sourceLineNo">147</span>          tinfo, remoteAddress, timeout, reqCleanup);<a name="line.147"></a>
-<span class="sourceLineNo">148</span>      this.responder = responder;<a name="line.148"></a>
-<span class="sourceLineNo">149</span>    }<a name="line.149"></a>
+<span class="sourceLineNo">139</span>    private ExecutorService readPool;<a name="line.139"></a>
+<span class="sourceLineNo">140</span><a name="line.140"></a>
+<span class="sourceLineNo">141</span>    public Listener(final String name) throws IOException {<a name="line.141"></a>
+<span class="sourceLineNo">142</span>      super(name);<a name="line.142"></a>
+<span class="sourceLineNo">143</span>      // The backlog of requests that we will have the serversocket carry.<a name="line.143"></a>
+<span class="sourceLineNo">144</span>      int backlogLength = conf.getInt("hbase.ipc.server.listen.queue.size", 128);<a name="line.144"></a>
+<span class="sourceLineNo">145</span>      readerPendingConnectionQueueLength =<a name="line.145"></a>
+<span class="sourceLineNo">146</span>          conf.getInt("hbase.ipc.server.read.connection-queue.size", 100);<a name="line.146"></a>
+<span class="sourceLineNo">147</span>      // Create a new server socket and set to non blocking mode<a name="line.147"></a>
+<span class="sourceLineNo">148</span>      acceptChannel = ServerSocketChannel.open();<a name="line.148"></a>
+<span class="sourceLineNo">149</span>      acceptChannel.configureBlocking(false);<a name="line.149"></a>
 <span class="sourceLineNo">150</span><a name="line.150"></a>
-<span class="sourceLineNo">151</span>    /**<a name="line.151"></a>
-<span class="sourceLineNo">152</span>     * Call is done. Execution happened and we returned results to client. It is now safe to<a name="line.152"></a>
-<span class="sourceLineNo">153</span>     * cleanup.<a name="line.153"></a>
-<span class="sourceLineNo">154</span>     */<a name="line.154"></a>
-<span class="sourceLineNo">155</span>    @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="IS2_INCONSISTENT_SYNC",<a name="line.155"></a>
-<span class="sourceLineNo">156</span>        justification="Presume the lock on processing request held by caller is protection enough")<a name="line.156"></a>
-<span class="sourceLineNo">157</span>    @Override<a name="line.157"></a>
-<span class="sourceLineNo">158</span>    void done() {<a name="line.158"></a>
-<span class="sourceLineNo">159</span>      super.done();<a name="line.159"></a>
-<span class="sourceLineNo">160</span>      this.getConnection().decRpcCount(); // Say that we're done with this call.<a name="line.160"></a>
-<span class="sourceLineNo">161</span>    }<a name="line.161"></a>
-<span class="sourceLineNo">162</span><a name="line.162"></a>
-<span class="sourceLineNo">163</span>    @Override<a name="line.163"></a>
-<span class="sourceLineNo">164</span>    public long disconnectSince() {<a name="line.164"></a>
-<span class="sourceLineNo">165</span>      if (!getConnection().isConnectionOpen()) {<a name="line.165"></a>
-<span class="sourceLineNo">166</span>        return System.currentTimeMillis() - timestamp;<a name="line.166"></a>
-<span class="sourceLineNo">167</span>      } else {<a name="line.167"></a>
-<span class="sourceLineNo">168</span>        return -1L;<a name="line.168"></a>
-<span class="sourceLineNo">169</span>      }<a name="line.169"></a>
-<span class="sourceLineNo">170</span>    }<a name="line.170"></a>
-<span class="sourceLineNo">171</span><a name="line.171"></a>
-<span class="sourceLineNo">172</span>    @Override<a name="line.172"></a>
-<span class="sourceLineNo">173</span>    public synchronized void sendResponseIfReady() throws IOException {<a name="line.173"></a>
-<span class="sourceLineNo">174</span>      // set param null to reduce memory pressure<a name="line.174"></a>
-<span class="sourceLineNo">175</span>      this.param = null;<a name="line.175"></a>
-<span class="sourceLineNo">176</span>      this.responder.doRespond(this);<a name="line.176"></a>
+<span class="sourceLineNo">151</span>      // Bind the server socket to the binding addrees (can be different from the default interface)<a name="line.151"></a>
+<span class="sourceLineNo">152</span>      bind(acceptChannel.socket(), bindAddress, backlogLength);<a name="line.152"></a>
+<span class="sourceLineNo">153</span>      port = acceptChannel.socket().getLocalPort(); //Could be an ephemeral port<a name="line.153"></a>
+<span class="sourceLineNo">154</span>      address = (InetSocketAddress)acceptChannel.socket().getLocalSocketAddress();<a name="line.154"></a>
+<span class="sourceLineNo">155</span>      // create a selector;<a name="line.155"></a>
+<span class="sourceLineNo">156</span>      selector = Selector.open();<a name="line.156"></a>
+<span class="sourceLineNo">157</span><a name="line.157"></a>
+<span class="sourceLineNo">158</span>      readers = new Reader[readThreads];<a name="line.158"></a>
+<span class="sourceLineNo">159</span>      // Why this executor thing? Why not like hadoop just start up all the threads? I suppose it<a name="line.159"></a>
+<span class="sourceLineNo">160</span>      // has an advantage in that it is easy to shutdown the pool.<a name="line.160"></a>
+<span class="sourceLineNo">161</span>      readPool = Executors.newFixedThreadPool(readThreads,<a name="line.161"></a>
+<span class="sourceLineNo">162</span>        new ThreadFactoryBuilder().setNameFormat(<a name="line.162"></a>
+<span class="sourceLineNo">163</span>          "RpcServer.reader=%d,bindAddress=" + bindAddress.getHostName() +<a name="line.163"></a>
+<span class="sourceLineNo">164</span>          ",port=" + port).setDaemon(true)<a name="line.164"></a>
+<span class="sourceLineNo">165</span>        .setUncaughtExceptionHandler(Threads.LOGGING_EXCEPTION_HANDLER).build());<a name="line.165"></a>
+<span class="sourceLineNo">166</span>      for (int i = 0; i &lt; readThreads; ++i) {<a name="line.166"></a>
+<span class="sourceLineNo">167</span>        Reader reader = new Reader();<a name="line.167"></a>
+<span class="sourceLineNo">168</span>        readers[i] = reader;<a name="line.168"></a>
+<span class="sourceLineNo">169</span>        readPool.execute(reader);<a name="line.169"></a>
+<span class="sourceLineNo">170</span>      }<a name="line.170"></a>
+<span class="sourceLineNo">171</span>      LOG.info(getName() + ": started " + readThreads + " reader(s) listening on port=" + port);<a name="line.171"></a>
+<span class="sourceLineNo">172</span><a name="line.172"></a>
+<span class="sourceLineNo">173</span>      // Register accepts on the server socket with the selector.<a name="line.173"></a>
+<span class="sourceLineNo">174</span>      acceptChannel.register(selector, SelectionKey.OP_ACCEPT);<a name="line.174"></a>
+<span class="sourceLineNo">175</span>      this.setName("RpcServer.listener,port=" + port);<a name="line.175"></a>
+<span class="sourceLineNo">176</span>      this.setDaemon(true);<a name="line.176"></a>
 <span class="sourceLineNo">177</span>    }<a name="line.177"></a>
 <span class="sourceLineNo">178</span><a name="line.178"></a>
-<span class="sourceLineNo">179</span>    Connection getConnection() {<a name="line.179"></a>
-<span class="sourceLineNo">180</span>      return (Connection) this.connection;<a name="line.180"></a>
-<span class="sourceLineNo">181</span>    }<a name="line.181"></a>
-<span class="sourceLineNo">182</span><a name="line.182"></a>
-<span class="sourceLineNo">183</span>  }<a name="line.183"></a>
-<span class="sourceLineNo">184</span><a name="line.184"></a>
-<span class="sourceLineNo">185</span>  /** Listens on the socket. Creates jobs for the handler threads*/<a name="line.185"></a>
-<span class="sourceLineNo">186</span>  private class Listener extends Thread {<a name="line.186"></a>
-<span class="sourceLineNo">187</span><a name="line.187"></a>
-<span class="sourceLineNo">188</span>    private ServerSocketChannel acceptChannel = null; //the accept channel<a name="line.188"></a>
-<span class="sourceLineNo">189</span>    private Selector selector = null; //the selector that we use for the server<a name="line.189"></a>
-<span class="sourceLineNo">190</span>    private Reader[] readers = null;<a name="line.190"></a>
-<span class="sourceLineNo">191</span>    private int currentReader = 0;<a name="line.191"></a>
-<span class="sourceLineNo">192</span>    private final int readerPendingConnectionQueueLength;<a name="line.192"></a>
-<span class="sourceLineNo">193</span><a name="line.193"></a>
-<span class="sourceLineNo">194</span>    private ExecutorService readPool;<a name="line.194"></a>
-<span class="sourceLineNo">195</span><a name="line.195"></a>
-<span class="sourceLineNo">196</span>    public Listener(final String name) throws IOException {<a name="line.196"></a>
-<span class="sourceLineNo">197</span>      super(name);<a name="line.197"></a>
-<span class="sourceLineNo">198</span>      // The backlog of requests that we will have the serversocket carry.<a name="line.198"></a>
-<span class="sourceLineNo">199</span>      int backlogLength = conf.getInt("hbase.ipc.server.listen.queue.size", 128);<a name="line.199"></a>
-<span class="sourceLineNo">200</span>      readerPendingConnectionQueueLength =<a name="line.200"></a>
-<span class="sourceLineNo">201</span>          conf.getInt("hbase.ipc.server.read.connection-queue.size", 100);<a name="line.201"></a>
-<span class="sourceLineNo">202</span>      // Create a new server socket and set to non blocking mode<a name="line.202"></a>
-<span class="sourceLineNo">203</span>      acceptChannel = ServerSocketChannel.open();<a name="line.203"></a>
-<span class="sourceLineNo">204</span>      acceptChannel.configureBlocking(false);<a name="line.204"></a>
-<span class="sourceLineNo">205</span><a name="line.205"></a>
-<span class="sourceLineNo">206</span>      // Bind the server socket to the binding addrees (can be different from the default interface)<a name="line.206"></a>
-<span class="sourceLineNo">207</span>      bind(acceptChannel.socket(), bindAddress, backlogLength);<a name="line.207"></a>
-<span class="sourceLineNo">208</span>      port = acceptChannel.socket().getLocalPort(); //Could be an ephemeral port<a name="line.208"></a>
-<span class="sourceLineNo">209</span>      address = (InetSocketAddress)acceptChannel.socket().getLocalSocketAddress();<a name="line.209"></a>
-<span class="sourceLineNo">210</span>      // create a selector;<a name="line.210"></a>
-<span class="sourceLineNo">211</span>      selector = Selector.open();<a name="line.211"></a>
-<span class="sourceLineNo">212</span><a name="line.212"></a>
-<span class="sourceLineNo">213</span>      readers = new Reader[readThreads];<a name="line.213"></a>
-<span class="sourceLineNo">214</span>      // Why this executor thing? Why not like hadoop just start up all the threads? I suppose it<a name="line.214"></a>
-<span class="sourceLineNo">215</span>      // has an advantage in that it is easy to shutdown the pool.<a name="line.215"></a>
-<span class="sourceLineNo">216</span>      readPool = Executors.newFixedThreadPool(readThreads,<a name="line.216"></a>
-<span class="sourceLineNo">217</span>        new ThreadFactoryBuilder().setNameFormat(<a name="line.217"></a>
-<span class="sourceLineNo">218</span>          "RpcServer.reader=%d,bindAddress=" + bindAddress.getHostName() +<a name="line.218"></a>
-<span class="sourceLineNo">219</span>          ",port=" + port).setDaemon(true)<a name="line.219"></a>
-<span class="sourceLineNo">220</span>        .setUncaughtExceptionHandler(Threads.LOGGING_EXCEPTION_HANDLER).build());<a name="line.220"></a>
-<span class="sourceLineNo">221</span>      for (int i = 0; i &lt; readThreads; ++i) {<a name="line.221"></a>
-<span class="sourceLineNo">222</span>        Reader reader = new Reader();<a name="line.222"></a>
-<span class="sourceLineNo">223</span>        readers[i] = reader;<a name="line.223"></a>
-<span class="sourceLineNo">224</span>        readPool.execute(reader);<a name="line.224"></a>
-<span class="sourceLineNo">225</span>      }<a name="line.225"></a>
-<span class="sourceLineNo">226</span>      LOG.info(getName() + ": started " + readThreads + " reader(s) listening on port=" + port);<a name="line.226"></a>
-<span class="sourceLineNo">227</span><a name="line.227"></a>
-<span class="sourceLineNo">228</span>      // Register accepts on the server socket with the selector.<a name="line.228"></a>
-<span class="sourceLineNo">229</span>      acceptChannel.register(selector, SelectionKey.OP_ACCEPT);<a name="line.229"></a>
-<span class="sourceLineNo">230</span>      this.setName("RpcServer.listener,port=" + port);<a name="line.230"></a>
-<span class="sourceLineNo">231</span>      this.setDaemon(true);<a name="line.231"></a>
-<span class="sourceLineNo">232</span>    }<a name="line.232"></a>
-<span class="sourceLineNo">233</span><a name="line.233"></a>
-<span class="sourceLineNo">234</span><a name="line.234"></a>
-<span class="sourceLineNo">235</span>    private class Reader implements Runnable {<a name="line.235"></a>
-<span class="sourceLineNo">236</span>      final private LinkedBlockingQueue&lt;Connection&gt; pendingConnections;<a name="line.236"></a>
-<span class="sourceLineNo">237</span>      private final Selector readSelector;<a name="line.237"></a>
-<span class="sourceLineNo">238</span><a name="line.238"></a>
-<span class="sourceLineNo">239</span>      Reader() throws IOException {<a name="line.239"></a>
-<span class="sourceLineNo">240</span>        this.pendingConnections = new LinkedBlockingQueue&lt;&gt;(readerPendingConnectionQueueLength);<a name="line.240"></a>
-<span class="sourceLineNo">241</span>        this.readSelector = Selector.open();<a name="line.241"></a>
-<span class="sourceLineNo">242</span>      }<a name="line.242"></a>
-<span class="sourceLineNo">243</span><a name="line.243"></a>
-<span class="sourceLineNo">244</span>      @Override<a name="line.244"></a>
-<span class="sourceLineNo">245</span>      public void run() {<a name="line.245"></a>
-<span class="sourceLineNo">246</span>        try {<a name="line.246"></a>
-<span class="sourceLineNo">247</span>          doRunLoop();<a name="line.247"></a>
-<span class="sourceLineNo">248</span>        } finally {<a name="line.248"></a>
-<span class="sourceLineNo">249</span>          try {<a name="line.249"></a>
-<span class="sourceLineNo">250</span>            readSelector.close();<a name="line.250"></a>
-<span class="sourceLineNo">251</span>          } catch (IOException ioe) {<a name="line.251"></a>
-<span class="sourceLineNo">252</span>            LOG.error(getName() + ": error closing read selector in " + getName(), ioe);<a name="line.252"></a>
-<span class="sourceLineNo">253</span>          }<a name="line.253"></a>
-<span class="sourceLineNo">254</span>        }<a name="line.254"></a>
-<span class="sourceLineNo">255</span>      }<a name="line.255"></a>
-<span class="sourceLineNo">256</span><a name="line.256"></a>
-<span class="sourceLineNo">257</span>      private synchronized void doRunLoop() {<a name="line.257"></a>
-<span class="sourceLineNo">258</span>        while (running) {<a name="line.258"></a>
-<span class="sourceLineNo">259</span>          try {<a name="line.259"></a>
-<span class="sourceLineNo">260</span>            // Consume as many connections as currently queued to avoid<a name="line.260"></a>
-<span class="sourceLineNo">261</span>            // unbridled acceptance of connections that starves the select<a name="line.261"></a>
-<span class="sourceLineNo">262</span>            int size = pendingConnections.size();<a name="line.262"></a>
-<span class="sourceLineNo">263</span>            for (int i=size; i&gt;0; i--) {<a name="line.263"></a>
-<span class="sourceLineNo">264</span>              Connection conn = pendingConnections.take();<a name="line.264"></a>
-<span class="sourceLineNo">265</span>              conn.channel.register(readSelector, SelectionKey.OP_READ, conn);<a name="line.265"></a>
-<span class="sourceLineNo">266</span>            }<a name="line.266"></a>
-<span class="sourceLineNo">267</span>            readSelector.select();<a name="line.267"></a>
-<span class="sourceLineNo">268</span>            Iterator&lt;SelectionKey&gt; iter = readSelector.selectedKeys().iterator();<a name="line.268"></a>
-<span class="sourceLineNo">269</span>            while (iter.hasNext()) {<a name="line.269"></a>
-<span class="sourceLineNo">270</span>              SelectionKey key = iter.next();<a name="line.270"></a>
-<span class="sourceLineNo">271</span>              iter.remove();<a name="line.271"></a>
-<span class="sourceLineNo">272</span>              if (key.isValid()) {<a name="line.272"></a>
-<span class="sourceLineNo">273</span>                if (key.isReadable()) {<a name="line.273"></a>
-<span class="sourceLineNo">274</span>                  doRead(key);<a name="line.274"></a>
-<span class="sourceLineNo">275</span>                }<a name="line.275"></a>
-<span class="sourceLineNo">276</span>              }<a name="line.276"></a>
-<span class="sourceLineNo">277</span>              key = null;<a name="line.277"></a>
-<span class="sourceLineNo">278</span>            }<a name="line.278"></a>
-<span class="sourceLineNo">279</span>          } catch (InterruptedException e) {<a name="line.279"></a>
-<span class="sourceLineNo">280</span>            if (running) {                      // unexpected -- log it<a name="line.280"></a>
-<span class="sourceLineNo">281</span>              LOG.info(Thread.currentThread().getName() + " unexpectedly interrupted", e);<a name="line.281"></a>
-<span class="sourceLineNo">282</span>            }<a name="line.282"></a>
-<span class="sourceLineNo">283</span>          } catch (CancelledKeyException e) {<a name="line.283"></a>
-<span class="sourceLineNo">284</span>            LOG.error(getName() + ": CancelledKeyException in Reader", e);<a name="line.284"></a>
-<span class="sourceLineNo">285</span>          } catch (IOException ex) {<a name="line.285"></a>
-<span class="sourceLineNo">286</span>            LOG.info(getName() + ": IOException in Reader", ex);<a name="line.286"></a>
-<span class="sourceLineNo">287</span>          }<a name="line.287"></a>
-<span class="sourceLineNo">288</span>        }<a name="line.288"></a>
-<span class="sourceLineNo">289</span>      }<a name="line.289"></a>
-<span class="sourceLineNo">290</span><a name="line.290"></a>
-<span class="sourceLineNo">291</span>      /**<a name="line.291"></a>
-<span class="sourceLineNo">292</span>       * Updating the readSelector while it's being used is not thread-safe,<a name="line.292"></a>
-<span class="sourceLineNo">293</span>       * so the connection must be queued.  The reader will drain the queue<a name="line.293"></a>
-<span class="sourceLineNo">294</span>       * and update its readSelector before performing the next select<a name="line.294"></a>
-<span class="sourceLineNo">295</span>       */<a name="line.295"></a>
-<span class="sourceLineNo">296</span>      public void addConnection(Connection conn) throws IOException {<a name="line.296"></a>
-<span class="sourceLineNo">297</span>        pendingConnections.add(conn);<a name="line.297"></a>
-<span class="sourceLineNo">298</span>        readSelector.wakeup();<a name="line.298"></a>
-<span class="sourceLineNo">299</span>      }<a name="line.299"></a>
-<span class="sourceLineNo">300</span>    }<a name="line.300"></a>
-<span class="sourceLineNo">301</span><a name="line.301"></a>
-<span class="sourceLineNo">302</span>    @Override<a name="line.302"></a>
-<span class="sourceLineNo">303</span>    @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="IS2_INCONSISTENT_SYNC",<a name="line.303"></a>
-<span class="sourceLineNo">304</span>      justification="selector access is not synchronized; seems fine but concerned changing " +<a name="line.304"></a>
-<span class="sourceLineNo">305</span>        "it will have per impact")<a name="line.305"></a>
-<span class="sourceLineNo">306</span>    public void run() {<a name="line.306"></a>
-<span class="sourceLineNo">307</span>      LOG.info(getName() + ": starting");<a name="line.307"></a>
-<span class="sourceLineNo">308</span>      connectionManager.startIdleScan();<a name="line.308"></a>
-<span class="sourceLineNo">309</span>      while (running) {<a name="line.309"></a>
-<span class="sourceLineNo">310</span>        SelectionKey key = null;<a name="line.310"></a>
-<span class="sourceLineNo">311</span>        try {<a name="line.311"></a>
-<span class="sourceLineNo">312</span>          selector.select(); // FindBugs IS2_INCONSISTENT_SYNC<a name="line.312"></a>
-<span class="sourceLineNo">313</span>          Iterator&lt;SelectionKey&gt; iter = selector.selectedKeys().iterator();<a name="line.313"></a>
-<span class="sourceLineNo">314</span>          while (iter.hasNext()) {<a name="line.314"></a>
-<span class="sourceLineNo">315</span>            key = iter.next();<a name="line.315"></a>
-<span class="sourceLineNo">316</span>            iter.remove();<a name="line.316"></a>
-<span class="sourceLineNo">317</span>            try {<a name="line.317"></a>
-<span class="sourceLineNo">318</span>              if (key.isValid()) {<a name="line.318"></a>
-<span class="sourceLineNo">319</span>                if (key.isAcceptable())<a name="line.319"></a>
-<span class="sourceLineNo">320</span>                  doAccept(key);<a name="line.320"></a>
-<span class="sourceLineNo">321</span>              }<a name="line.321"></a>
-<span class="sourceLineNo">322</span>            } catch (IOException ignored) {<a name="line.322"></a>
-<span class="sourceLineNo">323</span>              if (LOG.isTraceEnabled()) LOG.trace("ignored", ignored);<a name="line.323"></a>
-<span class="sourceLineNo">324</span>            }<a name="line.324"></a>
-<span class="sourceLineNo">325</span>            key = null;<a name="line.325"></a>
-<span class="sourceLineNo">326</span>          }<a name="line.326"></a>
-<span class="sourceLineNo">327</span>        } catch (OutOfMemoryError e) {<a name="line.327"></a>
-<span class="sourceLineNo">328</span>          if (errorHandler != null) {<a name="line.328"></a>
-<span class="sourceLineNo">329</span>            if (errorHandler.checkOOME(e)) {<a name="line.329"></a>
-<span class="sourceLineNo">330</span>              LOG.info(getName() + ": exiting on OutOfMemoryError");<a name="line.330"></a>
-<span class="sourceLineNo">331</span>              closeCurrentConnection(key, e);<a name="line.331"></a>
-<span class="sourceLineNo">332</span>              connectionManager.closeIdle(true);<a name="line.332"></a>
-<span class="sourceLineNo">333</span>              return;<a name="line.333"></a>
-<span class="sourceLineNo">334</span>            }<a name="line.334"></a>
-<span class="sourceLineNo">335</span>          } else {<a name="line.335"></a>
-<span class="sourceLineNo">336</span>            // we can run out of memory if we have too many threads<a name="line.336"></a>
-<span class="sourceLineNo">337</span>            // log the event and sleep for a minute and give<a name="line.337"></a>
-<span class="sourceLineNo">338</span>            // some thread(s) a chance to finish<a name="line.338"></a>
-<span class="sourceLineNo">339</span>            LOG.warn(getName() + ": OutOfMemoryError in server select", e);<a name="line.339"></a>
-<span class="sourceLineNo">340</span>            closeCurrentConnection(key, e);<a name="line.340"></a>
-<span class="sourceLineNo">341</span>            connectionManager.closeIdle(true);<a name="line.341"></a>
-<span class="sourceLineNo">342</span>            try {<a name="line.342"></a>
-<span class="sourceLineNo">343</span>              Thread.sleep(60000);<a name="line.343"></a>
-<span class="sourceLineNo">344</span>            } catch (InterruptedException ex) {<a name="line.344"></a>
-<span class="sourceLineNo">345</span>              LOG.debug("Interrupted while sleeping");<a name="line.345"></a>
-<span class="sourceLineNo">346</span>            }<a name="line.346"></a>
-<span class="sourceLineNo">347</span>          }<a name="line.347"></a>
-<span class="sourceLineNo">348</span>        } catch (Exception e) {<a name="line.348"></a>
-<span class="sourceLineNo">349</span>          closeCurrentConnection(key, e);<a name="line.349"></a>
-<span class="sourceLineNo">350</span>        }<a name="line.350"></a>
-<span class="sourceLineNo">351</span>      }<a name="line.351"></a>
-<span class="sourceLineNo">352</span>      LOG.info(getName() + ": stopping");<a name="line.352"></a>
-<span class="sourceLineNo">353</span>      synchronized (this) {<a name="line.353"></a>
-<span class="sourceLineNo">354</span>        try {<a name="line.354"></a>
-<span class="sourceLineNo">355</span>          acceptChannel.close();<a name="line.355"></a>
-<span class="sourceLineNo">356</span>          selector.close();<a name="line.356"></a>
-<span class="sourceLineNo">357</span>        } catch (IOException ignored) {<a name="line.357"></a>
-<span class="sourceLineNo">358</span>          if (LOG.isTraceEnabled()) LOG.trace("ignored", ignored);<a name="line.358"></a>
-<span class="sourceLineNo">359</span>        }<a name="line.359"></a>
-<span class="sourceLineNo">360</span><a name="line.360"></a>
-<span class="sourceLineNo">361</span>        selector= null;<a name="line.361"></a>
-<span class="sourceLineNo">362</span>        acceptChannel= null;<a name="line.362"></a>
-<span class="sourceLineNo">363</span><a name="line.363"></a>
-<span class="sourceLineNo">364</span>        // close all connections<a name="line.364"></a>
-<span class="sourceLineNo">365</span>        connectionManager.stopIdleScan();<a name="line.365"></a>
-<span class="sourceLineNo">366</span>        connectionManager.closeAll();<a name="line.366"></a>
+<span class="sourceLineNo">179</span><a name="line.179"></a>
+<span class="sourceLineNo">180</span>    private class Reader implements Runnable {<a name="line.180"></a>
+<span class="sourceLineNo">181</span>      final private LinkedBlockingQueue&lt;Connection&gt; pendingConnections;<a name="line.181"></a>
+<span class="sourceLineNo">182</span>      private final Selector readSelector;<a name="line.182"></a>
+<span class="sourceLineNo">183</span><a name="line.183"></a>
+<span class="sourceLineNo">184</span>      Reader() throws IOException {<a name="line.184"></a>
+<span class="sourceLineNo">185</span>        this.pendingConnections = new LinkedBlockingQueue&lt;&gt;(readerPendingConnectionQueueLength);<a name="line.185"></a>
+<span class="sourceLineNo">186</span>        this.readSelector = Selector.open();<a name="line.186"></a>
+<span class="sourceLineNo">187</span>      }<a name="line.187"></a>
+<span class="sourceLineNo">188</span><a name="line.188"></a>
+<span class="sourceLineNo">189</span>      @Override<a name="line.189"></a>
+<span class="sourceLineNo">190</span>      public void run() {<a name="line.190"></a>
+<span class="sourceLineNo">191</span>        try {<a name="line.191"></a>
+<span class="sourceLineNo">192</span>          doRunLoop();<a name="line.192"></a>
+<span class="sourceLineNo">193</span>        } finally {<a name="line.193"></a>
+<span class="sourceLineNo">194</span>          try {<a name="line.194"></a>
+<span class="sourceLineNo">195</span>            readSelector.close();<a name="line.195"></a>
+<span class="sourceLineNo">196</span>          } catch (IOException ioe) {<a name="line.196"></a>
+<span class="sourceLineNo">197</span>            LOG.error(getName() + ": error closing read selector in " + getName(), ioe);<a name="line.197"></a>
+<span class="sourceLineNo">198</span>          }<a name="line.198"></a>
+<span class="sourceLineNo">199</span>        }<a name="line.199"></a>
+<span class="sourceLineNo">200</span>      }<a name="line.200"></a>
+<span class="sourceLineNo">201</span><a name="line.201"></a>
+<span class="sourceLineNo">202</span>      private synchronized void doRunLoop() {<a name="line.202"></a>
+<span class="sourceLineNo">203</span>        while (running) {<a name="line.203"></a>
+<span class="sourceLineNo">204</span>          try {<a name="line.204"></a>
+<span class="sourceLineNo">205</span>            // Consume as many connections as currently queued to avoid<a name="line.205"></a>
+<span class="sourceLineNo">206</span>            // unbridled acceptance of connections that starves the select<a name="line.206"></a>
+<span class="sourceLineNo">207</span>            int size = pendingConnections.size();<a name="line.207"></a>
+<span class="sourceLineNo">208</span>            for (int i=size; i&gt;0; i--) {<a name="line.208"></a>
+<span class="sourceLineNo">209</span>              Connection conn = pendingConnections.take();<a name="line.209"></a>
+<span class="sourceLineNo">210</span>              conn.channel.register(readSelector, SelectionKey.OP_READ, conn);<a name="line.210"></a>
+<span class="sourceLineNo">211</span>            }<a name="line.211"></a>
+<span class="sourceLineNo">212</span>            readSelector.select();<a name="line.212"></a>
+<span class="sourceLineNo">213</span>            Iterator&lt;SelectionKey&gt; iter = readSelector.selectedKeys().iterator();<a name="line.213"></a>
+<span class="sourceLineNo">214</span>            while (iter.hasNext()) {<a name="line.214"></a>
+<span class="sourceLineNo">215</span>              SelectionKey key = iter.next();<a name="line.215"></a>
+<span class="sourceLineNo">216</span>              iter.remove();<a name="line.216"></a>
+<span class="sourceLineNo">217</span>              if (key.isValid()) {<a name="line.217"></a>
+<span class="sourceLineNo">218</span>                if (key.isReadable()) {<a name="line.218"></a>
+<span class="sourceLineNo">219</span>                  doRead(key);<a name="line.219"></a>
+<span class="sourceLineNo">220</span>                }<a name="line.220"></a>
+<span class="sourceLineNo">221</span>              }<a name="line.221"></a>
+<span class="sourceLineNo">222</span>              key = null;<a name="line.222"></a>
+<span class="sourceLineNo">223</span>            }<a name="line.223"></a>
+<span class="sourceLineNo">224</span>          } catch (InterruptedException e) {<a name="line.224"></a>
+<span class="sourceLineNo">225</span>            if (running) {                      // unexpected -- log it<a name="line.225"></a>
+<span class="sourceLineNo">226</span>              LOG.info(Thread.currentThread().getName() + " unexpectedly interrupted", e);<a name="line.226"></a>
+<span class="sourceLineNo">227</span>            }<a name="line.227"></a>
+<span class="sourceLineNo">228</span>          } catch (CancelledKeyException e) {<a name="line.228"></a>
+<span class="sourceLineNo">229</span>            LOG.error(getName() + ": CancelledKeyException in Reader", e);<a name="line.229"></a>
+<span class="sourceLineNo">230</span>          } catch (IOException ex) {<a name="line.230"></a>
+<span class="sourceLineNo">231</span>            LOG.info(getName() + ": IOException in Reader", ex);<a name="line.231"></a>
+<span class="sourceLineNo">232</span>          }<a name="line.232"></a>
+<span class="sourceLineNo">233</span>        }<a name="line.233"></a>
+<span class="sourceLineNo">234</span>      }<a name="line.234"></a>
+<span class="sourceLineNo">235</span><a name="line.235"></a>
+<span class="sourceLineNo">236</span>      /**<a name="line.236"></a>
+<span class="sourceLineNo">237</span>       * Updating the readSelector while it's being used is not thread-safe,<a name="line.237"></a>
+<span class="sourceLineNo">238</span>       * so the connection must be queued.  The reader will drain the queue<a name="line.238"></a>
+<span class="sourceLineNo">239</span>       * and update its readSelector before performing the next select<a name="line.239"></a>
+<span class="sourceLineNo">240</span>       */<a name="line.240"></a>
+<span class="sourceLineNo">241</span>      public void addConnection(Connection conn) throws IOException {<a name="line.241"></a>
+<span class="sourceLineNo">242</span>        pendingConnections.add(conn);<a name="line.242"></a>
+<span class="sourceLineNo">243</span>        readSelector.wakeup();<a name="line.243"></a>
+<span class="sourceLineNo">244</span>      }<a name="line.244"></a>
+<span class="sourceLineNo">245</span>    }<a name="line.245"></a>
+<span class="sourceLineNo">246</span><a name="line.246"></a>
+<span class="sourceLineNo">247</span>    @Override<a name="line.247"></a>
+<span class="sourceLineNo">248</span>    @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="IS2_INCONSISTENT_SYNC",<a name="line.248"></a>
+<span class="sourceLineNo">249</span>      justification="selector access is not synchronized; seems fine but concerned changing " +<a name="line.249"></a>
+<span class="sourceLineNo">250</span>        "it will have per impact")<a name="line.250"></a>
+<span class="sourceLineNo">251</span>    public void run() {<a name="line.251"></a>
+<span class="sourceLineNo">252</span>      LOG.info(getName() + ": starting");<a name="line.252"></a>
+<span class="sourceLineNo">253</span>      connectionManager.startIdleScan();<a name="line.253"></a>
+<span class="sourceLineNo">254</span>      while (running) {<a name="line.254"></a>
+<span class="sourceLineNo">255</span>        SelectionKey key = null;<a name="line.255"></a>
+<span class="sourceLineNo">256</span>        try {<a name="line.256"></a>
+<span class="sourceLineNo">257</span>          selector.select(); // FindBugs IS2_INCONSISTENT_SYNC<a name="line.257"></a>
+<span class="sourceLineNo">258</span>          Iterator&lt;SelectionKey&gt; iter = selector.selectedKeys().iterator();<a name="line.258"></a>
+<span class="sourceLineNo">259</span>          while (iter.hasNext()) {<a name="line.259"></a>
+<span class="sourceLineNo">260</span>            key = iter.next();<a name="line.260"></a>
+<span class="sourceLineNo">261</span>            iter.remove();<a name="line.261"></a>
+<span class="sourceLineNo">262</span>            try {<a name="line.262"></a>
+<span class="sourceLineNo">263</span>              if (key.isValid()) {<a name="line.263"></a>
+<span class="sourceLineNo">264</span>                if (key.isAcceptable())<a name="line.264"></a>
+<span class="sourceLineNo">265</span>                  doAccept(key);<a name="line.265"></a>
+<span class="sourceLineNo">266</span>              }<a name="line.266"></a>
+<span class="sourceLineNo">267</span>            } catch (IOException ignored) {<a name="line.267"></a>
+<span class="sourceLineNo">268</span>              if (LOG.isTraceEnabled()) LOG.trace("ignored", ignored);<a name="line.268"></a>
+<span class="sourceLineNo">269</span>            }<a name="line.269"></a>
+<span class="sourceLineNo">270</span>            key = null;<a name="line.270"></a>
+<span class="sourceLineNo">271</span>          }<a name="line.271"></a>
+<span class="sourceLineNo">272</span>        } catch (OutOfMemoryError e) {<a name="line.272"></a>
+<span class="sourceLineNo">273</span>          if (errorHandler != null) {<a name="line.273"></a>
+<span class="sourceLineNo">274</span>            if (errorHandler.checkOOME(e)) {<a name="line.274"></a>
+<span class="sourceLineNo">275</span>              LOG.info(getName() + ": exiting on OutOfMemoryError");<a name="line.275"></a>
+<span class="sourceLineNo">276</span>              closeCurrentConnection(key, e);<a name="line.276"></a>
+<span class="sourceLineNo">277</span>              connectionManager.closeIdle(true);<a name="line.277"></a>
+<span class="sourceLineNo">278</span>              return;<a name="line.278"></a>
+<span class="sourceLineNo">279</span>            }<a name="line.279"></a>
+<span class="sourceLineNo">280</span>          } else {<a name="line.280"></a>
+<span class="sourceLineNo">281</span>            // we can run out of memory if we have too many threads<a name="line.281"></a>
+<span class="sourceLineNo">282</span>            // log the event and sleep for a minute and give<a name="line.282"></a>
+<span class="sourceLineNo">283</span>            // some thread(s) a chance to finish<a name="line.283"></a>
+<span class="sourceLineNo">284</span>            LOG.warn(getName() + ": OutOfMemoryError in server select", e);<a name="line.284"></a>
+<span class="sourceLineNo">285</span>            closeCurrentConnection(key, e);<a name="line.285"></a>
+<span class="sourceLineNo">286</span>            connectionManager.closeIdle(true);<a name="line.286"></a>
+<span class="sourceLineNo">287</span>            try {<a name="line.287"></a>
+<span class="sourceLineNo">288</span>              Thread.sleep(60000);<a name="line.288"></a>
+<span class="sourceLineNo">289</span>            } catch (InterruptedException ex) {<a name="line.289"></a>
+<span class="sourceLineNo">290</span>              LOG.debug("Interrupted while sleeping");<a name="line.290"></a>
+<span class="sourceLineNo">291</span>            }<a name="line.291"></a>
+<span class="sourceLineNo">292</span>          }<a name="line.292"></a>
+<span class="sourceLineNo">293</span>        } catch (Exception e) {<a name="line.293"></a>
+<span class="sourceLineNo">294</span>          closeCurrentConnection(key, e);<a name="line.294"></a>
+<span class="sourceLineNo">295</span>        }<a name="line.295"></a>
+<span class="sourceLineNo">296</span>      }<a name="line.296"></a>
+<span class="sourceLineNo">297</span>      LOG.info(getName() + ": stopping");<a name="line.297"></a>
+<span class="sourceLineNo">298</span>      synchronized (this) {<a name="line.298"></a>
+<span class="sourceLineNo">299</span>        try {<a name="line.299"></a>
+<span class="sourceLineNo">300</span>          acceptChannel.close();<a name="line.300"></a>
+<span class="sourceLineNo">301</span>          selector.close();<a name="line.301"></a>
+<span class="sourceLineNo">302</span>        } catch (IOException ignored) {<a name="line.302"></a>
+<span class="sourceLineNo">303</span>          if (LOG.isTraceEnabled()) LOG.trace("ignored", ignored);<a name="line.303"></a>
+<span class="sourceLineNo">304</span>        }<a name="line.304"></a>
+<span class="sourceLineNo">305</span><a name="line.305"></a>
+<span class="sourceLineNo">306</span>        selector= null;<a name="line.306"></a>
+<span class="sourceLineNo">307</span>        acceptChannel= null;<a name="line.307"></a>
+<span class="sourceLineNo">308</span><a name="line.308"></a>
+<span class="sourceLineNo">309</span>        // close all connections<a name="line.309"></a>
+<span class="sourceLineNo">310</span>        connectionManager.stopIdleScan();<a name="line.310"></a>
+<span class="sourceLineNo">311</span>        connectionManager.closeAll();<a name="line.311"></a>
+<span class="sourceLineNo">312</span>      }<a name="line.312"></a>
+<span class="sourceLineNo">313</span>    }<a name="line.313"></a>
+<span class="sourceLineNo">314</span><a name="line.314"></a>
+<span class="sourceLineNo">315</span>    private void closeCurrentConnection(SelectionKey key, Throwable e) {<a name="line.315"></a>
+<span class="sourceLineNo">316</span>      if (key != null) {<a name="line.316"></a>
+<span class="sourceLineNo">317</span>        Connection c = (Connection)key.attachment();<a name="line.317"></a>
+<span class="sourceLineNo">318</span>        if (c != null) {<a name="line.318"></a>
+<span class="sourceLineNo">319</span>          closeConnection(c);<a name="line.319"></a>
+<span class="sourceLineNo">320</span>          key.attach(null);<a name="line.320"></a>
+<span class="sourceLineNo">321</span>        }<a name="line.321"></a>
+<span class="sourceLineNo">322</span>      }<a name="line.322"></a>
+<span class="sourceLineNo">323</span>    }<a name="line.323"></a>
+<span class="sourceLineNo">324</span><a name="line.324"></a>
+<span class="sourceLineNo">325</span>    InetSocketAddress getAddress() {<a name="line.325"></a>
+<span class="sourceLineNo">326</span>      return address;<a name="line.326"></a>
+<span class="sourceLineNo">327</span>    }<a name="line.327"></a>
+<span class="sourceLineNo">328</span><a name="line.328"></a>
+<span class="sourceLineNo">329</span>    void doAccept(SelectionKey key) throws InterruptedException, IOException, OutOfMemoryError {<a name="line.329"></a>
+<span class="sourceLineNo">330</span>      ServerSocketChannel server = (ServerSocketChannel) key.channel();<a name="line.330"></a>
+<span class="sourceLineNo">331</span>      SocketChannel channel;<a name="line.331"></a>
+<span class="sourceLineNo">332</span>      while ((channel = server.accept()) != null) {<a name="line.332"></a>
+<span class="sourceLineNo">333</span>        channel.configureBlocking(false);<a name="line.333"></a>
+<span class="sourceLineNo">334</span>        channel.socket().setTcpNoDelay(tcpNoDelay);<a name="line.334"></a>
+<span class="sourceLineNo">335</span>        channel.socket().setKeepAlive(tcpKeepAlive);<a name="line.335"></a>
+<span class="sourceLineNo">336</span>        Reader reader = getReader();<a name="line.336"></a>
+<span class="sourceLineNo">337</span>        Connection c = connectionManager.register(channel);<a name="line.337"></a>
+<span class="sourceLineNo">338</span>        // If the connectionManager can't take it, close the connection.<a name="line.338"></a>
+<span class="sourceLineNo">339</span>        if (c == null) {<a name="line.339"></a>
+<span class="sourceLineNo">340</span>          if (channel.isOpen()) {<a name="line.340"></a>
+<span class="sourceLineNo">341</span>            IOUtils.cleanup(null, channel);<a name="line.341"></a>
+<span class="sourceLineNo">342</span>          }<a name="line.342"></a>
+<span class="sourceLineNo">343</span>          continue;<a name="line.343"></a>
+<span class="sourceLineNo">344</span>        }<a name="line.344"></a>
+<span class="sourceLineNo">345</span>        key.attach(c);  // so closeCurrentConnection can get the object<a name="line.345"></a>
+<span class="sourceLineNo">346</span>        reader.addConnection(c);<a name="line.346"></a>
+<span class="sourceLineNo">347</span>      }<a name="line.347"></a>
+<span class="sourceLineNo">348</span>    }<a name="line.348"></a>
+<span class="sourceLineNo">349</span><a name="line.349"></a>
+<span class="sourceLineNo">350</span>    void doRead(SelectionKey key) throws InterruptedException {<a name="line.350"></a>
+<span class="sourceLineNo">351</span>      int count;<a name="line.351"></a>
+<span class="sourceLineNo">352</span>      Connection c = (Connection) key.attachment();<a name="line.352"></a>
+<span class="sourceLineNo">353</span>      if (c == null) {<a name="line.353"></a>
+<span class="sourceLineNo">354</span>        return;<a name="line.354"></a>
+<span class="sourceLineNo">355</span>      }<a name="line.355"></a>
+<span class="sourceLineNo">356</span>      c.setLastContact(System.currentTimeMillis());<a name="line.356"></a>
+<span class="sourceLineNo">357</span>      try {<a name="line.357"></a>
+<span class="sourceLineNo">358</span>        count = c.readAndProcess();<a name="line.358"></a>
+<span class="sourceLineNo">359</span>      } catch (InterruptedException ieo) {<a name="line.359"></a>
+<span class="sourceLineNo">360</span>        LOG.info(Thread.currentThread().getName() + ": readAndProcess caught InterruptedException", ieo);<a name="line.360"></a>
+<span class="sourceLineNo">361</span>        throw ieo;<a name="line.361"></a>
+<span class="sourceLineNo">362</span>      } catch (Exception e) {<a name="line.362"></a>
+<span class="sourceLineNo">363</span>        if (LOG.isDebugEnabled()) {<a name="line.363"></a>
+<span class="sourceLineNo">364</span>          LOG.debug(getName() + ": Caught exception while reading:", e);<a name="line.364"></a>
+<span class="sourceLineNo">365</span>        }<a name="line.365"></a>
+<span class="sourceLineNo">366</span>        count = -1; //so that the (count &lt; 0) block is executed<a name="line.366"></a>
 <span class="sourceLineNo">367</span>      }<a name="line.367"></a>
-<span class="sourceLineNo">368</span>    }<a name="line.368"></a>
-<span class="sourceLineNo">369</span><a name="line.369"></a>
-<span class="sourceLineNo">370</span>    private void closeCurrentConnection(SelectionKey key, Throwable e) {<a name="line.370"></a>
-<span class="sourceLineNo">371</span>      if (key != null) {<a name="line.371"></a>
-<span class="sourceLineNo">372</span>        Connection c = (Connection)key.attachment();<a name="line.372"></a>
-<span class="sourceLineNo">373</span>        if (c != null) {<a name="line.373"></a>
-<span class="sourceLineNo">374</span>          closeConnection(c);<a name="line.374"></a>
-<span class="sourceLineNo">375</span>          key.attach(null);<a name="line.375"></a>
-<span class="sourceLineNo">376</span>        }<a name="line.376"></a>
-<span class="sourceLineNo">377</span>      }<a name="line.377"></a>
-<span class="sourceLineNo">378</span>    }<a name="line.378"></a>
-<span class="sourceLineNo">379</span><a name="line.379"></a>
-<span class="sourceLineNo">380</span>    InetSocketAddress getAddress() {<a name="line.380"></a>
-<span class="sourceLineNo">381</span>      return address;<a name="line.381"></a>
-<span class="sourceLineNo">382</span>    }<a name="line.382"></a>
-<span class="sourceLineNo">383</span><a name="line.383"></a>
-<span class="sourceLineNo">384</span>    void doAccept(SelectionKey key) throws InterruptedException, IOException, OutOfMemoryError {<a name="line.384"></a>
-<span class="sourceLineNo">385</span>      ServerSocketChannel server = (ServerSocketChannel) key.channel();<a name="line.385"></a>
-<span class="sourceLineNo">386</span>      SocketChannel channel;<a name="line.386"></a>
-<span class="sourceLineNo">387</span>      while ((channel = server.accept()) != null) {<a name="line.387"></a>
-<span class="sourceLineNo">388</span>        channel.configureBlocking(false);<a name="line.388"></a>
-<span class="sourceLineNo">389</span>        channel.socket().setTcpNoDelay(tcpNoDelay);<a name="line.389"></a>
-<span class="sourceLineNo">390</span>        channel.socket().setKeepAlive(tcpKeepAlive);<a name="line.390"></a>
-<span class="sourceLineNo">391</span>        Reader reader = getReader();<a name="line.391"></a>
-<span class="sourceLineNo">392</span>        Connection c = connectionManager.register(channel);<a name="line.392"></a>
-<span class="sourceLineNo">393</span>        // If the connectionManager can't take it, close the connection.<a name="line.393"></a>
-<span class="sourceLineNo">394</span>        if (c == null) {<a name="line.394"></a>
-<span class="sourceLineNo">395</span>          if (channel.isOpen()) {<a name="line.395"></a>
-<span class="sourceLineNo">396</span>            IOUtils.cleanup(null, channel);<a name="line.396"></a>
-<span class="sourceLineNo">397</span>          }<a name="line.397"></a>
-<span class="sourceLineNo">398</span>          continue;<a name="line.398"></a>
-<span class="sourceLineNo">399</span>        }<a name="line.399"></a>
-<span class="sourceLineNo">400</span>        key.attach(c);  // so closeCurrentConnection can get the object<a name="line.400"></a>
-<span class="sourceLineNo">401</span>        reader.addConnection(c);<a name="line.401"></a>
-<span class="sourceLineNo">402</span>      }<a name="line.402"></a>
-<span class="sourceLineNo">403</span>    }<a name="line.403"></a>
+<span class="sourceLineNo">368</span>      if (count &lt; 0) {<a name="line.368"></a>
+<span class="sourceLineNo">369</span>        closeConnection(c);<a name="line.369"></a>
+<span class="sourceLineNo">370</span>        c = null;<a name="line.370"></a>
+<span class="sourceLineNo">371</span>      } else {<a name="line.371"></a>
+<span class="sourceLineNo">372</span>        c.setLastContact(System.currentTimeMillis());<a name="line.372"></a>
+<span class="sourceLineNo">373</span>      }<a name="line.373"></a>
+<span class="sourceLineNo">374</span>    }<a name="line.374"></a>
+<span class="sourceLineNo">375</span><a name="line.375"></a>
+<span class="sourceLineNo">376</span>    synchronized void doStop() {<a name="line.376"></a>
+<span class="sourceLineNo">377</span>      if (selector != null) {<a name="line.377"></a>
+<span class="sourceLineNo">378</span>        selector.wakeup();<a name="line.378"></a>
+<span class="sourceLineNo">379</span>        Thread.yield();<a name="line.379"></a>
+<span class="sourceLineNo">380</span>      }<a name="line.380"></a>
+<span class="sourceLineNo">381</span>      if (acceptChannel != null) {<a name="line.381"></a>
+<span class="sourceLineNo">382</span>        try {<a name="line.382"></a>
+<span class="sourceLineNo">383</span>          acceptChannel.socket().close();<a name="line.383"></a>
+<span class="sourceLineNo">384</span>        } catch (IOException e) {<a name="line.384"></a>
+<span class="sourceLineNo">385</span>          LOG.info(getName() + ": exception in closing listener socket. " + e);<a name="line.385"></a>
+<span class="sourceLineNo">386</span>        }<a name="line.386"></a>
+<span class="sourceLineNo">387</span>      }<a name="line.387"></a>
+<span class="sourceLineNo">388</span>      readPool.shutdownNow();<a name="line.388"></a>
+<span class="sourceLineNo">389</span>    }<a name="line.389"></a>
+<span class="sourceLineNo">390</span><a name="line.390"></a>
+<span class="sourceLineNo">391</span>    // The method that will return the next reader to work with<a name="line.391"></a>
+<span class="sourceLineNo">392</span>    // Simplistic implementation of round robin for now<a name="line.392"></a>
+<span class="sourceLineNo">393</span>    Reader getReader() {<a name="line.393"></a>
+<span class="sourceLineNo">394</span>      currentReader = (currentReader + 1) % readers.length;<a name="line.394"></a>
+<span class="sourceLineNo">395</span>      return readers[currentReader];<a name="line.395"></a>
+<span class="sourceLineNo">396</span>    }<a name="line.396"></a>
+<span class="sourceLineNo">397</span>  }<a name="line.397"></a>
+<span class="sourceLineNo">398</span><a name="line.398"></a>
+<span class="sourceLineNo">399</span>  // Sends responses of RPC back to clients.<a name="line.399"></a>
+<span class="sourceLineNo">400</span>  protected class Responder extends Thread {<a name="line.400"></a>
+<span class="sourceLineNo">401</span>    private final Selector writeSelector;<a name="line.401"></a>
+<span class="sourceLineNo">402</span>    private final Set&lt;Connection&gt; writingCons =<a name="line.402"></a>
+<span class="sourceLineNo">403</span>        Collections.newSetFromMap(new ConcurrentHashMap&lt;Connection, Boolean&gt;());<a name="line.403"></a>
 <span class="sourceLineNo">404</span><a name="line.404"></a>
-<span class="sourceLineNo">405</span>    void doRead(SelectionKey key) throws InterruptedException {<a name="line.405"></a>
-<span class="sourceLineNo">406</span>      int count;<a name="line.406"></a>
-<span class="sourceLineNo">407</span>      Connection c = (Connection) key.attachment();<a name="line.407"></a>
-<span class="sourceLineNo">408</span>      if (c == null) {<a name="line.408"></a>
-<span class="sourceLineNo">409</span>        return;<a name="line.409"></a>
-<span class="sourceLineNo">410</span>      }<a name="line.410"></a>
-<span class="sourceLineNo">411</span>      c.setLastContact(System.currentTimeMillis());<a name="line.411"></a>
-<span class="sourceLineNo">412</span>      try {<a name="line.412"></a>
-<span class="sourceLineNo">413</span>        count = c.readAndProcess();<a name="line.413"></a>
-<span class="sourceLineNo">414</span>      } catch (InterruptedException ieo) {<a name="line.414"></a>
-<span class="sourceLineNo">415</span>        LOG.info(Thread.currentThread().getName() + ": readAndProcess caught InterruptedException", ieo);<a name="line.415"></a>
-<span class="sourceLineNo">416</span>        throw ieo;<a name="line.416"></a>
-<span class="sourceLineNo">417</span>      } catch (Exception e) {<a name="line.417"></a>
-<span class="sourceLineNo">418</span>        if (LOG.isDebugEnabled()) {<a name="line.418"></a>
-<span class="sourceLineNo">419</span>          LOG.debug(getName() + ": Caught exception while reading:", e);<a name="line.419"></a>
-<span class="sourceLineNo">420</span>        }<a name="line.420"></a>
-<span class="sourceLineNo">421</span>        count = -1; //so that the (count &lt; 0) block is executed<a name="line.421"></a>
-<span class="sourceLineNo">422</span>      }<a name="line.422"></a>
-<span class="sourceLineNo">423</span>      if (count &lt; 0) {<a name="line.423"></a>
-<span class="sourceLineNo">424</span>        closeConnection(c);<a name="line.424"></a>
-<span class="sourceLineNo">425</span>        c = null;<a name="line.425"></a>
-<span class="sourceLineNo">426</span>      } else {<a name="line.426"></a>
-<span class="sourceLineNo">427</span>        c.setLastContact(System.currentTimeMillis());<a name="line.427"></a>
-<span class="sourceLineNo">428</span>      }<a name="line.428"></a>
-<span class="sourceLineNo">429</span>    }<a name="line.429"></a>
-<span class="sourceLineNo">430</span><a name="line.430"></a>
-<span class="sourceLineNo">431</span>    synchronized void doStop() {<a name="line.431"></a>
-<span class="sourceLineNo">432</span>      if (selector != null) {<a name="line.432"></a>
-<span class="sourceLineNo">433</span>        selector.wakeup();<a name="line.433"></a>
-<span class="sourceLineNo">434</span>        Thread.yield();<a name="line.434"></a>
-<span class="sourceLineNo">435</span>      }<a name="line.435"></a>
-<span class="sourceLineNo">436</span>      if (acceptChannel != null) {<a name="line.436"></a>
+<span class="sourceLineNo">405</span>    Responder() throws IOException {<a name="line.405"></a>
+<span class="sourceLineNo">406</span>      this.setName("RpcServer.responder");<a name="line.406"></a>
+<span class="sourceLineNo">407</span>      this.setDaemon(true);<a name="line.407"></a>
+<span class="sourceLineNo">408</span>      this.setUncaughtExceptionHandler(Threads.LOGGING_EXCEPTION_HANDLER);<a name="line.408"></a>
+<span class="sourceLineNo">409</span>      writeSelector = Selector.open(); // create a selector<a name="line.409"></a>
+<span class="sourceLineNo">410</span>    }<a name="line.410"></a>
+<span class="sourceLineNo">411</span><a name="line.411"></a>
+<span class="sourceLineNo">412</span>    @Override<a name="line.412"></a>
+<span class="sourceLineNo">413</span>    public void run() {<a name="line.413"></a>
+<span class="sourceLineNo">414</span>      LOG.debug(getName() + ": starting");<a name="line.414"></a>
+<span class="sourceLineNo">415</span>      try {<a name="line.415"></a>
+<span class="sourceLineNo">416</span>        doRunLoop();<a name="line.416"></a>
+<span class="sourceLineNo">417</span>      } finally {<a name="line.417"></a>
+<span class="sourceLineNo">418</span>        LOG.info(getName() + ": stopping");<a name="line.418"></a>
+<span class="sourceLineNo">419</span>        try {<a name="line.419"></a>
+<span class="sourceLineNo">420</span>          writeSelector.close();<a name="line.420"></a>
+<span class="sourceLineNo">421</span>        } catch (IOException ioe) {<a name="line.421"></a>
+<span class="sourceLineNo">422</span>          LOG.error(getName() + ": couldn't close write selector", ioe);<a name="line.422"></a>
+<span class="sourceLineNo">423</span>        }<a name="line.423"></a>
+<span class="sourceLineNo">424</span>      }<a name="line.424"></a>
+<span class="sourceLineNo">425</span>    }<a name="line.425"></a>
+<span class="sourceLineNo">426</span><a name="line.426"></a>
+<span class="sourceLineNo">427</span>    /**<a name="line.427"></a>
+<span class="sourceLineNo">428</span>     * Take the list of the connections that want to write, and register them<a name="line.428"></a>
+<span class="sourceLineNo">429</span>     * in the selector.<a name="line.429"></a>
+<span class="sourceLineNo">430</span>     */<a name="line.430"></a>
+<span class="sourceLineNo">431</span>    private void registerWrites() {<a name="line.431"></a>
+<span class="sourceLineNo">432</span>      Iterator&lt;Connection&gt; it = writingCons.iterator();<a name="line.432"></a>
+<span class="sourceLineNo">433</span>      while (it.hasNext()) {<a name="line.433"></a>
+<span class="sourceLineNo">434</span>        Connection c = it.next();<a name="line.434"></a>
+<span class="sourceLineNo">435</span>        it.remove();<a name="line.435"></a>
+<span class="sourceLineNo">436</span>        SelectionKey sk = c.channel.keyFor(writeSelector);<a name="line.436"></a>
 <span class="sourceLineNo">437</span>        try {<a name="line.437"></a>
-<span class="sourceLineNo">438</span>          acceptChannel.socket().close();<a name="line.438"></a>
-<span class="sourceLineNo">439</span>        } catch (IOException e) {<a name="line.439"></a>
-<span class="sourceLineNo">440</span>          LOG.info(getName() + ": exception in closing listener socket. " + e);<a name="line.440"></a>
-<span class="sourceLineNo">441</span>        }<a name="line.441"></a>
-<span class="sourceLineNo">442</span>      }<a name="line.442"></a>
-<span class="sourceLineNo">443</span>      readPool.shutdownNow();<a name="line.443"></a>
-<span class="sourceLineNo">444</span>    }<a name="line.444"></a>
-<span class="sourceLineNo">445</span><a name="line.445"></a>
-<span class="sourceLineNo">446</span>    // The method that will return the next reader to work with<a name="line.446"></a>
-<span class="sourceLineNo">447</span>    // Simplistic implementation of round robin for now<a name="line.447"></a>
-<span class="sourceLineNo">448</span>    Reader getReader() {<a name="line.448"></a>
-<span class="sourceLineNo">449</span>      currentReader = (currentReader + 1) % readers.length;<a name="line.449"></a>
-<span class="sourceLineNo">450</span>      return readers[currentReader];<a name="line.450"></a>
-<span class="sourceLineNo">451</span>    }<a name="line.451"></a>
-<span class="sourceLineNo">452</span>  }<a name="line.452"></a>
-<span class="sourceLineNo">453</span><a name="line.453"></a>
-<span class="sourceLineNo">454</span>  // Sends responses of RPC back to clients.<a name="line.454"></a>
-<span class="sourceLineNo">455</span>  protected class Responder extends Thread {<a name="line.455"></a>
-<span class="sourceLineNo">456</span>    private final Selector writeSelector;<a name="line.456"></a>
-<span class="sourceLineNo">457</span>    private final Set&lt;Connection&gt; writingCons =<a name="line.457"></a>
-<span class="sourceLineNo">458</span>        Collections.newSetFromMap(new ConcurrentHashMap&lt;Connection, Boolean&gt;());<a name="line.458"></a>
-<span class="sourceLineNo">459</span><a name="line.459"></a>
-<span class="sourceLineNo">460</span>    Responder() throws IOException {<a name="line.460"></a>
-<span class="sourceLineNo">461</span>      this.setName("RpcServer.responder");<a name="line.461"></a>
-<span class="sourceLineNo">462</span>      this.setDaemon(true);<a name="line.462"></a>
-<span class="sourceLineNo">463</span>      this.setUncaughtExceptionHandler(Threads.LOGGING_EXCEPTION_HANDLER);<a name="line.463"></a>
-<span class="sourceLineNo">464</span>      writeSelector = Selector.open(); // create a selector<a name="line.464"></a>
-<span class="sourceLineNo">465</span>    }<a name="line.465"></a>
-<span class="sourceLineNo">466</span><a name="line.466"></a>
-<span class="sourceLineNo">467</span>    @Override<a name="line.467"></a>
-<span class="sourceLineNo">468</span>    public void run() {<a name="line.468"></a>
-<span class="sourceLineNo">469</span>      LOG.debug(getName() + ": starting");<a name="line.469"></a>
-<span class="sourceLineNo">470</span>      try {<a name="line.470"></a>
-<span class="sourceLineNo">471</span>        doRunLoop();<a name="line.471"></a>
-<span class="sourceLineNo">472</span>      } finally {<a name="line.472"></a>
-<span class="sourceLineNo">473</span>        LOG.info(getName() + ": stopping");<a name="line.473"></a>
-<span class="sourceLineNo">474</span>        try {<a name="line.474"></a>
-<span class="sourceLineNo">475</span>          writeSelector.close();<a name="line.475"></a>
-<span class="sourceLineNo">476</span>        } catch (IOException ioe) {<a name="line.476"></a>
-<span class="sourceLineNo">477</span>          LOG.error(getName() + ": couldn't close write selector", ioe);<a name="line.477"></a>
-<span class="sourceLineNo">478</span>        }<a name="line.478"></a>
-<span class="sourceLineNo">479</span>      }<a name="line.479"></a>
-<span class="sourceLineNo">480</span>    }<a name="line.480"></a>
-<span class="sourceLineNo">481</span><a name="line.481"></a>
-<span class="sourceLineNo">482</span>    /**<a name="line.482"></a>
-<span class="sourceLineNo">483</span>     * Take the list of the connections that want to write, and register them<a name="line.483"></a>
-<span class="sourceLineNo">484</span>     * in the selector.<a name="line.484"></a>
-<span class="sourceLineNo">485</span>     */<a name="line.485"></a>
-<span class="sourceLineNo">486</span>    private void registerWrites() {<a name="line.486"></a>
-<span class="sourceLineNo">487</span>      Iterator&lt;Connection&gt; it = writingCons.iterator();<a name="line.487"></a>
-<span class="sourceLineNo">488</span>      while (it.hasNext()) {<a name="line.488"></a>
-<span class="sourceLineNo">489</span>        Connection c = it.next();<a name="line.489"></a>
-<span class="sourceLineNo">490</span>        it.remove();<a name="line.490"></a>
-<span class="sourceLineNo">491</span>        SelectionKey sk = c.channel.keyFor(writeSelector);<a name="line.491"></a>
-<span class="sourceLineNo">492</span>        try {<a name="line.492"></a>
-<span class="sourceLineNo">493</span>          if (sk == null) {<a name="line.493"></a>
-<span class="sourceLineNo">494</span>            try {<a name="line.494"></a>
-<span class="sourceLineNo">495</span>              c.channel.register(writeSelector, SelectionKey.OP_WRITE, c);<a name="line.495"></a>
-<span class="sourceLineNo">496</span>            } catch (ClosedChannelException e) {<a name="line.496"></a>
-<span class="sourceLineNo">497</span>              // ignore: the client went away.<a name="line.497"></a>
-<span class="sourceLineNo">498</span>              if (LOG.isTraceEnabled()) LOG.trace("ignored", e);<a name="line.498"></a>
-<span class="sourceLineNo">499</span>            }<a name="line.499"></a>
-<span class="sourceLineNo">500</span>          } else {<a name="line.500"></a>
-<span class="sourceLineNo">501</span>            sk.interestOps(SelectionKey.OP_WRITE);<a name="line.501"></a>
-<span class="sourceLineNo">502</span>          }<a name="line.502"></a>
-<span class="sourceLineNo">503</span>        } catch (CancelledKeyException e) {<a name="line.503"></a>
-<span class="sourceLineNo">504</span>          // ignore: the client went away.<a name="line.504"></a>
-<span class="sourceLineNo">505</span>          if (LOG.isTraceEnabled()) LOG.trace("ignored", e);<a name="line.505"></a>
-<span class="sourceLineNo">506</span>        }<a name="line.506"></a>
-<span class="sourceLineNo">507</span>      }<a name="line.507"></a>
-<span class="sourceLineNo">508</span>    }<a name="line.508"></a>
-<span class="sourceLineNo">509</span><a name="line.509"></a>
-<span class="sourceLineNo">510</span>    /**<a name="line.510"></a>
-<span class="sourceLineNo">511</span>     * Add a connection to the list that want to write,<a name="line.511"></a>
-<span class="sourceLineNo">512</span>     */<a name="line.512"></a>
-<span class="sourceLineNo">513</span>    public void registerForWrite(Connection c) {<a name="line.513"></a>
-<span class="sourceLineNo">514</span>      if (writingCons.add(c)) {<a name="line.514"></a>
-<span class="sourceLineNo">515</span>        writeSelector.wakeup();<a name="line.515"></a>
-<span class="sourceLineNo">516</span>      }<a name="line.516"></a>
-<span class="sourceLineNo">517</span>    }<a name="line.517"></a>
-<span class="sourceLineNo">518</span><a name="line.518"></a>
-<span class="sourceLineNo">519</span>    private void doRunLoop() {<a name="line.519"></a>
-<span class="sourceLineNo">520</span>      long lastPurgeTime = 0;   // last check for old calls.<a name="line.520"></a>
-<span class="sourceLineNo">521</span>      while (running) {<a name="line.521"></a>
-<span class="sourceLineNo">522</span>        try {<a name="line.522"></a>
-<span class="sourceLineNo">523</span>          registerWrites();<a name="line.523"></a>
-<span class="sourceLineNo">524</span>          int keyCt = writeSelector.select(purgeTimeout);<a name="line.524"></a>
-<span class="sourceLineNo">525</span>          if (keyCt == 0) {<a name="line.525"></a>
-<span class="sourceLineNo">526</span>            continue;<a name="line.526"></a>
-<span class="sourceLineNo">527</span>          }<a name="line.527"></a>
+<span class="sourceLineNo">438</span>          if (sk == null) {<a name="line.438"></a>
+<span class="sourceLineNo">439</span>            try {<a name="line.439"></a>
+<span class="sourceLineNo">440</span>              c.channel.register(writeSelector, SelectionKey.OP_WRITE, c);<a name="line.440"></a>
+<span class="sourceLineNo">441</span>            } catch (ClosedChannelException e) {<a name="line.441"></a>
+<span class="sourceLineNo">442</span>              // ignore: the client went away.<a name="line.442"></a>
+<span class="sourceLineNo">443</span>              if (LOG.isTraceEnabled()) LOG.trace("ignored", e);<a name="line.443"></a>
+<span class="sourceLineNo">444</span>            }<a name="line.444"></a>
+<span class="sourceLineNo">445</span>          } else {<a name="line.445"></a>
+<span class="sourceLineNo">446</span>            sk.interestOps(SelectionKey.OP_WRITE);<a name="line.446"></a>
+<span class="sourceLineNo">447</span>          }<a name="line.447"></a>
+<span class="sourceLineNo">448</span>        } catch (CancelledKeyException e) {<a name="line.448"></a>
+<span class="sourceLineNo">449</span>          // ignore: the client went away.<a name="line.449"></a>
+<span class="sourceLineNo">450</span>          if (LOG.isTraceEnabled()) LOG.trace("ignored", e);<a name="line.450"></a>
+<span class="sourceLineNo">451</span>        }<a name="line.451"></a>
+<span class="sourceLineNo">452</span>      }<a name="line.452"></a>
+<span class="sourceLineNo">453</span>    }<a name="line.453"></a>
+<span class="sourceLineNo">454</span><a name="line.454"></a>
+<span class="sourceLineNo">455</span>    /**<a name="line.455"></a>
+<span class="sourceLineNo">456</span>     * Add a connection to the list that want to write,<a name="line.456"></a>
+<span class="sourceLineNo">457</span>     */<a name="line.457"></a>
+<span class="sourceLineNo">458</span>    public void registerForWrite(Connection c) {<a name="line.458"></a>
+<span class="sourceLineNo">459</span>      if (writingCons.add(c)) {<a name="line.459"></a>
+<span class="sourceLineNo">460</span>        writeSelector.wakeup();<a name="line.460"></a>
+<span class="sourceLineNo">461</span>      }<a name="line.461"></a>
+<span class="sourceLineNo">462</span>    }<a name="line.462"></a>
+<span class="sourceLineNo">463</span><a name="line.463"></a>
+<span class="sourceLineNo">464</span>    private void doRunLoop() {<a name="line.464"></a>
+<span class="sourceLineNo">465</span>      long lastPurgeTime = 0;   // last check for old calls.<a name="line.465"></a>
+<span class="sourceLineNo">466</span>      while (running) {<a name="line.466"></a>
+<span class="sourceLineNo">467</span>        try {<a name="line.467"></a>
+<span class="sourceLineNo">468</span>          registerWrites();<a name="line.468"></a>
+<span class="sourceLineNo">469</span>          int keyCt = writeSelector.select(purgeTimeout);<a name="line.469"></a>
+<span class="sourceLineNo">470</span>          if (keyCt == 0) {<a name="line.470"></a>
+<span class="sourceLineNo">471</span>            continue;<a name="line.471"></a>
+<span class="sourceLineNo">472</span>          }<a name="line.472"></a>
+<span class="sourceLineNo">473</span><a name="line.473"></a>
+<span class="sourceLineNo">474</span>          Set&lt;SelectionKey&gt; keys = writeSelector.selectedKeys();<a name="line.474"></a>
+<span class="sourceLineNo">475</span>          Iterator&lt;SelectionKey&gt; iter = keys.iterator();<a name="line.475"></a>
+<span class="sourceLineNo">476</span>          while (iter.hasNext()) {<a name="line.476"></a>
+<span class="sourceLineNo">477</span>            SelectionKey key = iter.next();<a name="line.477"></a>
+<span class="sourceLineNo">478</span>            iter.remove();<a name="line.478"></a>
+<span class="sourceLineNo">479</span>            try {<a name="line.479"></a>
+<span class="sourceLineNo">480</span>              if (key.isValid() &amp;&amp; key.isWritable()) {<a name="line.480"></a>
+<span class="sourceLineNo">481</span>                doAsyncWrite(key);<a name="line.481"></a>
+<span class="sourceLineNo">482</span>              }<a name="line.482"></a>
+<span class="sourceLineNo">483</span>            } catch (IOException e) {<a name="line.483"></a>
+<span class="sourceLineNo">484</span>              LOG.debug(getName() + ": asyncWrite", e);<a name="line.484"></a>
+<span class="sourceLineNo">485</span>            }<a name="line.485"></a>
+<span class="sourceLineNo">486</span>          }<a name="line.486"></a>
+<span class="sourceLineNo">487</span><a name="line.487"></a>
+<span class="sourceLineNo">488</span>          lastPurgeTime = purge(lastPurgeTime);<a name="line.488"></a>
+<span class="sourceLineNo">489</span><a name="line.489"></a>
+<span class="sourceLineNo">490</span>        } catch (OutOfMemoryError e) {<a name="line.490"></a>
+<span class="sourceLineNo">491</span>          if (errorHandler != null) {<a name="line.491"></a>
+<span class="sourceLineNo">492</span>            if (errorHandler.checkOOME(e)) {<a name="line.492"></a>
+<span class="sourceLineNo">493</span>              LOG.info(getName() + ": exiting on OutOfMemoryError");<a name="line.493"></a>
+<span class="sourceLineNo">494</span>              return;<a name="line.494"></a>
+<span class="sourceLineNo">495</span>            }<a name="line.495"></a>
+<span class="sourceLineNo">496</span>          } else {<a name="line.496"></a>
+<span class="sourceLineNo">497</span>            //<a name="line.497"></a>
+<span class="sourceLineNo">498</span>            // we can run out of memory if we have too many threads<a name="line.498"></a>
+<span class="sourceLineNo">499</span>            // log the event and sleep for a minute and give<a name="line.499"></a>
+<span class="sourceLineNo">500</span>            // some thread(s) a chance to finish<a name="line.500"></a>
+<span class="sourceLineNo">501</span>            //<a name="line.501"></a>
+<span class="sourceLineNo">502</span>            LOG.warn(getName() + ": OutOfMemoryError in server select", e);<a name="line.502"></a>
+<span class="sourceLineNo">503</span>            try {<a name="line.503"></a>
+<span class="sourceLineNo">504</span>              Thread.sleep(60000);<a name="line.504"></a>
+<span class="sourceLineNo">505</span>            } catch (InterruptedException ex) {<a name="line.505"></a>
+<span class="sourceLineNo">506</span>              LOG.debug("Interrupted while sleeping");<a name="line.506"></a>
+<span class="sourceLineNo">507</span>              return;<a name="line.507"></a>
+<span class="sourceLineNo">508</span>            }<a name="line.508"></a>
+<span class="sourceLineNo">509</span>          }<a name="line.509"></a>
+<span class="sourceLineNo">510</span>        } catch (Exception e) {<a name="line.510"></a>
+<span class="sourceLineNo">511</span>          LOG.warn(getName() + ": exception in Responder " +<a name="line.511"></a>
+<span class="sourceLineNo">512</span>              StringUtils.stringifyException(e), e);<a name="line.512"></a>
+<span class="sourceLineNo">513</span>        }<a name="line.513"></a>
+<span class="sourceLineNo">514</span>      }<a name="line.514"></a>
+<span class="sourceLineNo">515</span>      LOG.info(getName() + ": stopped");<a name="line.515"></a>
+<span class="sourceLineNo">516</span>    }<a name="line.516"></a>
+<span class="sourceLineNo">517</span><a name="line.517"></a>
+<span class="sourceLineNo">518</span>    /**<a name="line.518"></a>
+<span class="sourceLineNo">519</span>     * If there were some calls that have not been sent out for a<a name="line.519"></a>
+<span class="sourceLineNo">520</span>     * long time, we close the connection.<a name="line.520"></a>
+<span class="sourceLineNo">521</span>     * @return the time of the purge.<a name="line.521"></a>
+<span class="sourceLineNo">522</span>     */<a name="line.522"></a>
+<span class="sourceLineNo">523</span>    private long purge(long lastPurgeTime) {<a name="line.523"></a>
+<span class="sourceLineNo">524</span>      long now = System.currentTimeMillis();<a name="line.524"></a>
+<span class="sourceLineNo">525</span>      if (now &lt; lastPurgeTime + purgeTimeout) {<a name="line.525"></a>
+<span class="sourceLineNo">526</span>        return lastPurgeTime;<a name="line.526"></a>
+<span class="sourceLineNo">527</span>      }<a name="line.527"></a>
 <span class="sourceLineNo">528</span><a name="line.528"></a>
-<span class="sourceLineNo">529</span>          Set&lt;SelectionKey&gt; keys = writeSelector.selectedKeys();<a name="line.529"></a>
-<span class="sourceLineNo">530</span>          Iterator&lt;SelectionKey&gt; iter = keys.iterator();<a name="line.530"></a>
-<span class="sourceLineNo">531</span>          while (iter.hasNext()) {<a name="line.531"></a>
-<span class="sourceLineNo">532</span>            SelectionKey key = iter.next();<a name="line.532"></a>
-<span class="sourceLineNo">533</span>            iter.remove();<a name="line.533"></a>
-<span class="sourceLineNo">534</span>            try {<a name="line.534"></a>
-<span class="sourceLineNo">535</span>              if (key.isValid() &amp;&amp; key.isWritable()) {<a name="line.535"></a>
-<span class="sourceLineNo">536</span>                doAsyncWrite(key);<a name="line.536"></a>
-<span class="sourceLineNo">537</span>              }<a name="line.537"></a>
-<span class="sourceLineNo">538</span>            } catch (IOException e) {<a name="line.538"></a>
-<span class="sourceLineNo">539</span>              LOG.debug(getName() + ": asyncWrite", e);<a name="line.539"></a>
-<span class="sourceLineNo">540</span>            }<a name="line.540"></a>
-<span class="sourceLineNo">541</span>          }<a name="line.541"></a>
-<span class="sourceLineNo">542</span><a name="line.542"></a>
-<span class="sourceLineNo">543</span>          lastPurgeTime = purge(lastPurgeTime);<a name="line.543"></a>
-<span class="sourceLineNo">544</span><a name="line.544"></a>
-<span class="sourceLineNo">545</span>        } catch (OutOfMemoryError e) {<a name="line.545"></a>
-<span class="sourceLineNo">546</span>          if (errorHandler != null) {<a name="line.546"></a>
-<span class="sourceLineNo">547</span>            if (errorHandler.checkOOME(e)) {<a name="line.547"></a>
-<span class="sourceLineNo">548</span>              LOG.info(getName() + ": exiting on OutOfMemoryError");<a name="line.548"></a>
-<span class="sourceLineNo">549</span>              return;<a name="line.549"></a>
-<span class="sourceLineNo">550</span>            }<a name="line.550"></a>
-<span class="sourceLineNo">551</span>          } else {<a name="line.551"></a>
-<span class="sourceLineNo">552</span>            //<a name="line.552"></a>
-<span class="sourceLineNo">553</span>            // we can run out of memory if we have too many threads<a name="line.553"></a>
-<span class="sourceLineNo">554</span>            // log the event and sleep for a minute and give<a name="line.554"></a>
-<span class="sourceLineNo">555</span>            // some thread(s) a chance to finish<a name="line.555"></a>
-<span class="sourceLineNo">556</span>            //<a name="line.556"></a>
-<span class="sourceLineNo">557</span>            LOG.warn(getName() + ": OutOfMemoryError in server select", e);<a name="line.557"></a>
-<span class="sourceLineNo">558</span>            try {<a name="line.558"></a>
-<span class="sourceLineNo">559</span>              Thread.sleep(60000);<a name="line.559"></a>
-<span class="sourceLineNo">560</span>            } catch (InterruptedException ex) {<a name="line.560"></a>
-<span class="sourceLineNo">561</span>              LOG.debug("Interrupted while sleeping");<a name="line.561"></a>
-<span class="sourceLineNo">562</span>              return;<a name="line.562"></a>
-<span class="sourceLineNo">563</span>            }<a name="line.563"></a>
-<span class="sourceLineNo">564</span>          }<a name="line.564"></a>
-<span class="sourceLineNo">565</span>        } catch (Exception e) {<a name="line.565"></a>
-<span class="sourceLineNo">566</span>          LOG.warn(getName() + ": exception in Responder " +<a name="line.566"></a>
-<span class="sourceLineNo">567</span>              StringUtils.stringifyException(e), e);<a name="line.567"></a>
-<span class="sourceLineNo">568</span>        }<a name="line.568"></a>
-<span class="sourceLineNo">569</span>      }<a name="line.569"></a>
-<span class="sourceLineNo">570</span>      LOG.info(getName() + ": stopped");<a name="line.570"></a>
-<span class="sourceLineNo">571</span>    }<a name="line.571"></a>
-<span class="sourceLineNo">572</span><a name="line.572"></a>
-<span class="sourceLineNo">573</span>    /**<a name="line.573"></a>
-<span class="sourceLineNo">574</span>     * If there were some calls that have not been sent out for a<a name="line.574"></a>
-<span class="sourceLineNo">575</span>     * long time, we close the connection.<a name="line.575"></a>
-<span class="sourceLineNo">576</span>     * @return the time of the purge.<a name="line.576"></a>
-<span class="sourceLineNo">577</span>     */<a name="line.577"></a>
-<span class="sourceLineNo">578</span>    private long purge(long lastPurgeTime) {<a name="line.578"></a>
-<span class="sourceLineNo">579</span>      long now = System.currentTimeMillis();<a name="line.579"></a>
-<span class="sourceLineNo">580</span>      if (now &lt; lastPurgeTime + purgeTimeout) {<a name="line.580"></a>
-<span class="sourceLineNo">581</span>        return lastPurgeTime;<a name="line.581"></a>
-<span class="sourceLineNo">582</span>      }<a name="line.582"></a>
-<span class="sourceLineNo">583</span><a name="line.583"></a>
-<span class="sourceLineNo">584</span>      ArrayList&lt;Connection&gt; conWithOldCalls = new ArrayList&lt;&gt;();<a name="line.584"></a>
-<span class="sourceLineNo">585</span>      // get the list of channels from list of keys.<a name="line.585"></a>
-<span class="sourceLineNo">586</span>      synchronized (writeSelector.keys()) {<a name="line.586"></a>
-<span class="sourceLineNo">587</span>        for (SelectionKey key : writeSelector.keys()) {<a name="line.587"></a>
-<span class="sourceLineNo">588</span>          Connection connection = (Connection) key.attachment();<a name="line.588"></a>
-<span class="sourceLineNo">589</span>          if (connection == null) {<a name="line.589"></a>
-<span class="sourceLineNo">590</span>            throw new IllegalStateException("Coding error: SelectionKey key without attachment.");<a name="line.590"></a>
-<span class="sourceLineNo">591</span>          }<a name="line.591"></a>
-<span class="sourceLineNo">592</span>          Call call = connection.responseQueue.peekFirst();<a name="line.592"></a>
-<span class="sourceLineNo">593</span>          if (call != null &amp;&amp; now &gt; call.timestamp + purgeTimeout) {<a name="line.593"></a>
-<span class="sourceLineNo">594</span>            conWithOldCalls.add(call.getConnection());<a name="line.594"></a>
-<span class="sourceLineNo">595</span>          }<a name="line.595"></a>
-<span class="sourceLineNo">596</span>        }<a name="line.596"></a>
-<span class="sourceLineNo">597</span>      }<a name="line.597"></a>
-<span class="sourceLineNo">598</span><a name="line.598"></a>
-<span class="sourceLineNo">599</span>      // Seems safer to close the connection outside of the synchronized loop...<a name="line.599"></a>
-<span class="sourceLineNo">600</span>      for (Connection connection : conWithOldCalls) {<a name="line.600"></a>
-<span class="sourceLineNo">601</span>        closeConnection(connection);<a name="line.601"></a>
-<span class="sourceLineNo">602</span>      }<a name="line.602"></a>
-<span class="sourceLineNo">603</span><a name="line.603"></a>
-<span class="sourceLineNo">604</span>      return now;<a name="line.604"></a>
-<span class="sourceLineNo">605</span>    }<a name="line.605"></a>
-<span class="sourceLineNo">606</span><a name="line.606"></a>
-<span class="sourceLineNo">607</span>    private void doAsyncWrite(SelectionKey key) throws IOException {<a name="line.607"></a>
-<span class="sourceLineNo">608</span>      Connection connection = (Connection) key.attachment();<a name="line.608"></a>
-<span class="sourceLineNo">609</span>      if (connection == null) {<a name="line.609"></a>
-<span class="sourceLineNo">610</span>        throw new IOException("doAsyncWrite: no connection");<a name="line.610"></a>
+<span class="sourceLineNo">529</span>      ArrayList&lt;Connection&gt; conWithOldCalls = new ArrayList&lt;&gt;();<a name="line.529"></a>
+<span class="sourceLineNo">530</span>      // get the list of channels from list of keys.<a name="line.530"></a>
+<span class="sourceLineNo">531</span>      synchronized (writeSelector.keys()) {<a name="line.531"></a>
+<span class="sourceLineNo">532</span>        for (SelectionKey key : writeSelector.keys()) {<a name="line.532"></a>
+<span class="sourceLineNo">533</span>          Connection connection = (Connection) key.attachment();<a name="line.533"></a>
+<span class="sourceLineNo">534</span>          if (connection == null) {<a name="line.534"></a>
+<span class="sourceLineNo">535</span>            throw new IllegalStateException("Coding error: SelectionKey key without attachment.");<a name="line.535"></a>
+<span class="sourceLineNo">536</span>          }<a name="line.536"></a>
+<span class="sourceLineNo">537</span>          SimpleServerCall call = connection.responseQueue.peekFirst();<a name="line.537"></a>
+<span class="sourceLineNo">538</span>          if (call != null &amp;&amp; now &gt; call.lastSentTime + purgeTimeout) {<a name="line.538"></a>
+<span class="sourceLineNo">539</span>            conWithOldCalls.add(call.getConnection());<a name="line.539"></a>
+<span class="sourceLineNo">540</span>          }<a name="line.540"></a>
+<span class="sourceLineNo">541</span>        }<a name="line.541"></a>
+<span class="sourceLineNo">542</span>      }<a name="line.542"></a>
+<span class="sourceLineNo">543</span><a name="line.543"></a>
+<span class="sourceLineNo">544</span>      // Seems safer to close the connection outside of the synchronized loop...<a name="line.544"></a>
+<span class="sourceLineNo">545</span>      for (Connection connection : conWithOldCalls) {<a name="line.545"></a>
+<span class="sourceLineNo">546</span>        closeConnection(connection);<a name="line.546"></a>
+<span class="sourceLineNo">547</span>      }<a name="line.547"></a>
+<span class="sourceLineNo">548</span><a name="line.548"></a>
+<span class="sourceLineNo">549</span>      return now;<a name="line.549"></a>
+<span class="sourceLineNo">550</span>    }<a name="line.550"></a>
+<span class="sourceLineNo">551</span><a name="line.551"></a>
+<span class="sourceLineNo">552</span>    private void doAsyncWrite(SelectionKey key) throws IOException {<a name="line.552"></a>
+<span class="sourceLineNo">553</span>      Connection connection = (Connection) key.attachment();<a name="line.553"></a>
+<span class="sourceLineNo">554</span>      if (connection == null) {<a name="line.554"></a>
+<span class="sourceLineNo">555</span>        throw new IOException("doAsyncWrite: no connection");<a name="line.555"></a>
+<span class="sourceLineNo">556</span>      }<a name="line.556"></a>
+<span class="sourceLineNo">557</span>      if (key.channel() != connection.channel) {<a name="line.557"></a>
+<span class="sourceLineNo">558</span>        throw new IOException("doAsyncWrite: bad channel");<a name="line.558"></a>
+<span class="sourceLineNo">559</span>      }<a name="line.559"></a>
+<span class="sourceLineNo">560</span><a name="line.560"></a>
+<span class="sourceLineNo">561</span>      if (processAllResponses(connection)) {<a name="line.561"></a>
+<span class="sourceLineNo">562</span>        try {<a name="line.562"></a>
+<span class="sourceLineNo">563</span>          // We wrote everything, so we don't need to be told when the socket is ready for<a name="line.563"></a>
+<span class="sourceLineNo">564</span>          //  write anymore.<a name="line.564"></a>
+<span class="sourceLineNo">565</span>         key.interestOps(0);<a name="line.565"></a>
+<span class="sourceLineNo">566</span>        } catch (CancelledKeyException e) {<a name="line.566"></a>
+<span class="sourceLineNo">567</span>          /* The Listener/reader might have closed the socket.<a name="line.567"></a>
+<span class="sourceLineNo">568</span>           * We don't explicitly cancel the key, so not sure if this will<a name="line.568"></a>
+<span class="sourceLineNo">569</span>           * ever fire.<a name="line.569"></a>
+<span class="sourceLineNo">570</span>           * This warning could be removed.<a name="line.570"></a>
+<span class="sourceLineNo">571</span>           */<a name="line.571"></a>
+<span class="sourceLineNo">572</span>          LOG.warn("Exception while changing ops : " + e);<a name="line.572"></a>
+<span class="sourceLineNo">573</span>        }<a name="line.573"></a>
+<span class="sourceLineNo">574</span>      }<a name="line.574"></a>
+<span class="sourceLineNo">575</span>    }<a name="line.575"></a>
+<span class="sourceLineNo">576</span><a name="line.576"></a>
+<span class="sourceLineNo">577</span>    /**<a na

<TRUNCATED>

Mime
View raw message