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From git-site-r...@apache.org
Subject [18/51] [partial] hbase-site git commit: Published site at .
Date Fri, 22 Dec 2017 15:19:11 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/c4b2cc17/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html
----------------------------------------------------------------------
diff --git a/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html b/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html
index cc11564..1143409 100644
--- a/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html
+++ b/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html
@@ -49,968 +49,967 @@
 <span class="sourceLineNo">041</span>import java.util.concurrent.Future;<a name="line.41"></a>
 <span class="sourceLineNo">042</span>import java.util.concurrent.TimeUnit;<a name="line.42"></a>
 <span class="sourceLineNo">043</span>import java.util.concurrent.TimeoutException;<a name="line.43"></a>
-<span class="sourceLineNo">044</span><a name="line.44"></a>
-<span class="sourceLineNo">045</span>import org.apache.commons.cli.CommandLine;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import org.apache.hadoop.conf.Configuration;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.ClusterStatus.Option;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.HConstants;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.ServerName;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.TableName;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.client.Admin;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.client.Get;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.client.Result;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.client.ResultScanner;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.client.Table;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.filter.FirstKeyOnlyFilter;<a name="line.61"></a>
-<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;<a name="line.62"></a>
-<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.zookeeper.ZKWatcher;<a name="line.63"></a>
-<span class="sourceLineNo">064</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.64"></a>
-<span class="sourceLineNo">065</span>import org.slf4j.Logger;<a name="line.65"></a>
-<span class="sourceLineNo">066</span>import org.slf4j.LoggerFactory;<a name="line.66"></a>
-<span class="sourceLineNo">067</span><a name="line.67"></a>
-<span class="sourceLineNo">068</span>/**<a name="line.68"></a>
-<span class="sourceLineNo">069</span> * Tool for loading/unloading regions to/from given regionserver This tool can be run from Command<a name="line.69"></a>
-<span class="sourceLineNo">070</span> * line directly as a utility. Supports Ack/No Ack mode for loading/unloading operations.Ack mode<a name="line.70"></a>
-<span class="sourceLineNo">071</span> * acknowledges if regions are online after movement while noAck mode is best effort mode that<a name="line.71"></a>
-<span class="sourceLineNo">072</span> * improves performance but will still move on if region is stuck/not moved. Motivation behind noAck<a name="line.72"></a>
-<span class="sourceLineNo">073</span> * mode being RS shutdown where even if a Region is stuck, upon shutdown master will move it<a name="line.73"></a>
-<span class="sourceLineNo">074</span> * anyways. This can also be used by constructiong an Object using the builder and then calling<a name="line.74"></a>
-<span class="sourceLineNo">075</span> * {@link #load()} or {@link #unload()} methods for the desired operations.<a name="line.75"></a>
-<span class="sourceLineNo">076</span> */<a name="line.76"></a>
-<span class="sourceLineNo">077</span>@InterfaceAudience.Public<a name="line.77"></a>
-<span class="sourceLineNo">078</span>public class RegionMover extends AbstractHBaseTool {<a name="line.78"></a>
-<span class="sourceLineNo">079</span>  public static final String MOVE_RETRIES_MAX_KEY = "hbase.move.retries.max";<a name="line.79"></a>
-<span class="sourceLineNo">080</span>  public static final String MOVE_WAIT_MAX_KEY = "hbase.move.wait.max";<a name="line.80"></a>
-<span class="sourceLineNo">081</span>  public static final String SERVERSTART_WAIT_MAX_KEY = "hbase.serverstart.wait.max";<a name="line.81"></a>
-<span class="sourceLineNo">082</span>  public static final int DEFAULT_MOVE_RETRIES_MAX = 5;<a name="line.82"></a>
-<span class="sourceLineNo">083</span>  public static final int DEFAULT_MOVE_WAIT_MAX = 60;<a name="line.83"></a>
-<span class="sourceLineNo">084</span>  public static final int DEFAULT_SERVERSTART_WAIT_MAX = 180;<a name="line.84"></a>
-<span class="sourceLineNo">085</span>  static final Logger LOG = LoggerFactory.getLogger(RegionMover.class);<a name="line.85"></a>
-<span class="sourceLineNo">086</span>  private RegionMoverBuilder rmbuilder;<a name="line.86"></a>
-<span class="sourceLineNo">087</span>  private boolean ack = true;<a name="line.87"></a>
-<span class="sourceLineNo">088</span>  private int maxthreads = 1;<a name="line.88"></a>
-<span class="sourceLineNo">089</span>  private int timeout;<a name="line.89"></a>
-<span class="sourceLineNo">090</span>  private String loadUnload;<a name="line.90"></a>
-<span class="sourceLineNo">091</span>  private String hostname;<a name="line.91"></a>
-<span class="sourceLineNo">092</span>  private String filename;<a name="line.92"></a>
-<span class="sourceLineNo">093</span>  private String excludeFile;<a name="line.93"></a>
-<span class="sourceLineNo">094</span>  private int port;<a name="line.94"></a>
-<span class="sourceLineNo">095</span><a name="line.95"></a>
-<span class="sourceLineNo">096</span>  private RegionMover(RegionMoverBuilder builder) {<a name="line.96"></a>
-<span class="sourceLineNo">097</span>    this.hostname = builder.hostname;<a name="line.97"></a>
-<span class="sourceLineNo">098</span>    this.filename = builder.filename;<a name="line.98"></a>
-<span class="sourceLineNo">099</span>    this.excludeFile = builder.excludeFile;<a name="line.99"></a>
-<span class="sourceLineNo">100</span>    this.maxthreads = builder.maxthreads;<a name="line.100"></a>
-<span class="sourceLineNo">101</span>    this.ack = builder.ack;<a name="line.101"></a>
-<span class="sourceLineNo">102</span>    this.port = builder.port;<a name="line.102"></a>
-<span class="sourceLineNo">103</span>    this.timeout = builder.timeout;<a name="line.103"></a>
-<span class="sourceLineNo">104</span>  }<a name="line.104"></a>
-<span class="sourceLineNo">105</span><a name="line.105"></a>
-<span class="sourceLineNo">106</span>  private RegionMover() {<a name="line.106"></a>
-<span class="sourceLineNo">107</span>  }<a name="line.107"></a>
-<span class="sourceLineNo">108</span><a name="line.108"></a>
-<span class="sourceLineNo">109</span>  /**<a name="line.109"></a>
-<span class="sourceLineNo">110</span>   * Builder for Region mover. Use the {@link #build()} method to create RegionMover object. Has<a name="line.110"></a>
-<span class="sourceLineNo">111</span>   * {@link #filename(String)}, {@link #excludeFile(String)}, {@link #maxthreads(int)},<a name="line.111"></a>
-<span class="sourceLineNo">112</span>   * {@link #ack(boolean)}, {@link #timeout(int)} methods to set the corresponding options<a name="line.112"></a>
-<span class="sourceLineNo">113</span>   */<a name="line.113"></a>
-<span class="sourceLineNo">114</span>  public static class RegionMoverBuilder {<a name="line.114"></a>
-<span class="sourceLineNo">115</span>    private boolean ack = true;<a name="line.115"></a>
-<span class="sourceLineNo">116</span>    private int maxthreads = 1;<a name="line.116"></a>
-<span class="sourceLineNo">117</span>    private int timeout = Integer.MAX_VALUE;<a name="line.117"></a>
-<span class="sourceLineNo">118</span>    private String hostname;<a name="line.118"></a>
-<span class="sourceLineNo">119</span>    private String filename;<a name="line.119"></a>
-<span class="sourceLineNo">120</span>    private String excludeFile = null;<a name="line.120"></a>
-<span class="sourceLineNo">121</span>    String defaultDir = System.getProperty("java.io.tmpdir");<a name="line.121"></a>
-<span class="sourceLineNo">122</span><a name="line.122"></a>
-<span class="sourceLineNo">123</span>    private int port = HConstants.DEFAULT_REGIONSERVER_PORT;<a name="line.123"></a>
-<span class="sourceLineNo">124</span><a name="line.124"></a>
-<span class="sourceLineNo">125</span>    /**<a name="line.125"></a>
-<span class="sourceLineNo">126</span>     * @param hostname Hostname to unload regions from or load regions to. Can be either hostname<a name="line.126"></a>
-<span class="sourceLineNo">127</span>     *     or hostname:port.<a name="line.127"></a>
-<span class="sourceLineNo">128</span>     */<a name="line.128"></a>
-<span class="sourceLineNo">129</span>    public RegionMoverBuilder(String hostname) {<a name="line.129"></a>
-<span class="sourceLineNo">130</span>      String[] splitHostname = hostname.toLowerCase().split(":");<a name="line.130"></a>
-<span class="sourceLineNo">131</span>      this.hostname = splitHostname[0];<a name="line.131"></a>
-<span class="sourceLineNo">132</span>      if (splitHostname.length == 2) {<a name="line.132"></a>
-<span class="sourceLineNo">133</span>        this.port = Integer.parseInt(splitHostname[1]);<a name="line.133"></a>
-<span class="sourceLineNo">134</span>      }<a name="line.134"></a>
-<span class="sourceLineNo">135</span>      setDefaultfilename(this.hostname);<a name="line.135"></a>
-<span class="sourceLineNo">136</span>    }<a name="line.136"></a>
-<span class="sourceLineNo">137</span><a name="line.137"></a>
-<span class="sourceLineNo">138</span>    private void setDefaultfilename(String hostname) {<a name="line.138"></a>
-<span class="sourceLineNo">139</span>      this.filename =<a name="line.139"></a>
-<span class="sourceLineNo">140</span>          defaultDir + File.separator + System.getProperty("user.name") + this.hostname + ":"<a name="line.140"></a>
-<span class="sourceLineNo">141</span>              + Integer.toString(this.port);<a name="line.141"></a>
-<span class="sourceLineNo">142</span>    }<a name="line.142"></a>
-<span class="sourceLineNo">143</span><a name="line.143"></a>
-<span class="sourceLineNo">144</span>    /**<a name="line.144"></a>
-<span class="sourceLineNo">145</span>     * Path of file where regions will be written to during unloading/read from during loading<a name="line.145"></a>
-<span class="sourceLineNo">146</span>     * @param filename<a name="line.146"></a>
-<span class="sourceLineNo">147</span>     * @return RegionMoverBuilder object<a name="line.147"></a>
-<span class="sourceLineNo">148</span>     */<a name="line.148"></a>
-<span class="sourceLineNo">149</span>    public RegionMoverBuilder filename(String filename) {<a name="line.149"></a>
-<span class="sourceLineNo">150</span>      this.filename = filename;<a name="line.150"></a>
-<span class="sourceLineNo">151</span>      return this;<a name="line.151"></a>
-<span class="sourceLineNo">152</span>    }<a name="line.152"></a>
-<span class="sourceLineNo">153</span><a name="line.153"></a>
-<span class="sourceLineNo">154</span>    /**<a name="line.154"></a>
-<span class="sourceLineNo">155</span>     * Set the max number of threads that will be used to move regions<a name="line.155"></a>
-<span class="sourceLineNo">156</span>     */<a name="line.156"></a>
-<span class="sourceLineNo">157</span>    public RegionMoverBuilder maxthreads(int threads) {<a name="line.157"></a>
-<span class="sourceLineNo">158</span>      this.maxthreads = threads;<a name="line.158"></a>
-<span class="sourceLineNo">159</span>      return this;<a name="line.159"></a>
-<span class="sourceLineNo">160</span>    }<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>     * Path of file containing hostnames to be excluded during region movement. Exclude file should<a name="line.163"></a>
-<span class="sourceLineNo">164</span>     * have 'host:port' per line. Port is mandatory here as we can have many RS running on a single<a name="line.164"></a>
-<span class="sourceLineNo">165</span>     * host.<a name="line.165"></a>
-<span class="sourceLineNo">166</span>     */<a name="line.166"></a>
-<span class="sourceLineNo">167</span>    public RegionMoverBuilder excludeFile(String excludefile) {<a name="line.167"></a>
-<span class="sourceLineNo">168</span>      this.excludeFile = excludefile;<a name="line.168"></a>
-<span class="sourceLineNo">169</span>      return this;<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>    /**<a name="line.172"></a>
-<span class="sourceLineNo">173</span>     * Set ack/noAck mode.<a name="line.173"></a>
-<span class="sourceLineNo">174</span>     * &lt;p&gt;<a name="line.174"></a>
-<span class="sourceLineNo">175</span>     * In ack mode regions are acknowledged before and after moving and the move is retried<a name="line.175"></a>
-<span class="sourceLineNo">176</span>     * hbase.move.retries.max times, if unsuccessful we quit with exit code 1.No Ack mode is a best<a name="line.176"></a>
-<span class="sourceLineNo">177</span>     * effort mode,each region movement is tried once.This can be used during graceful shutdown as<a name="line.177"></a>
-<span class="sourceLineNo">178</span>     * even if we have a stuck region,upon shutdown it'll be reassigned anyway.<a name="line.178"></a>
-<span class="sourceLineNo">179</span>     * &lt;p&gt;<a name="line.179"></a>
-<span class="sourceLineNo">180</span>     * @param ack<a name="line.180"></a>
-<span class="sourceLineNo">181</span>     * @return RegionMoverBuilder object<a name="line.181"></a>
-<span class="sourceLineNo">182</span>     */<a name="line.182"></a>
-<span class="sourceLineNo">183</span>    public RegionMoverBuilder ack(boolean ack) {<a name="line.183"></a>
-<span class="sourceLineNo">184</span>      this.ack = ack;<a name="line.184"></a>
-<span class="sourceLineNo">185</span>      return this;<a name="line.185"></a>
-<span class="sourceLineNo">186</span>    }<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>     * Set the timeout for Load/Unload operation in seconds.This is a global timeout,threadpool for<a name="line.189"></a>
-<span class="sourceLineNo">190</span>     * movers also have a separate time which is hbase.move.wait.max * number of regions to<a name="line.190"></a>
-<span class="sourceLineNo">191</span>     * load/unload<a name="line.191"></a>
-<span class="sourceLineNo">192</span>     * @param timeout in seconds<a name="line.192"></a>
-<span class="sourceLineNo">193</span>     * @return RegionMoverBuilder object<a name="line.193"></a>
-<span class="sourceLineNo">194</span>     */<a name="line.194"></a>
-<span class="sourceLineNo">195</span>    public RegionMoverBuilder timeout(int timeout) {<a name="line.195"></a>
-<span class="sourceLineNo">196</span>      this.timeout = timeout;<a name="line.196"></a>
-<span class="sourceLineNo">197</span>      return this;<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>     * This method builds the appropriate RegionMover object which can then be used to load/unload<a name="line.201"></a>
-<span class="sourceLineNo">202</span>     * using load and unload methods<a name="line.202"></a>
-<span class="sourceLineNo">203</span>     * @return RegionMover object<a name="line.203"></a>
-<span class="sourceLineNo">204</span>     */<a name="line.204"></a>
-<span class="sourceLineNo">205</span>    public RegionMover build() {<a name="line.205"></a>
-<span class="sourceLineNo">206</span>      return new RegionMover(this);<a name="line.206"></a>
-<span class="sourceLineNo">207</span>    }<a name="line.207"></a>
-<span class="sourceLineNo">208</span>  }<a name="line.208"></a>
-<span class="sourceLineNo">209</span><a name="line.209"></a>
-<span class="sourceLineNo">210</span>  /**<a name="line.210"></a>
-<span class="sourceLineNo">211</span>   * Loads the specified {@link #hostname} with regions listed in the {@link #filename} RegionMover<a name="line.211"></a>
-<span class="sourceLineNo">212</span>   * Object has to be created using {@link #RegionMover(RegionMoverBuilder)}<a name="line.212"></a>
-<span class="sourceLineNo">213</span>   * @return true if loading succeeded, false otherwise<a name="line.213"></a>
-<span class="sourceLineNo">214</span>   * @throws ExecutionException<a name="line.214"></a>
-<span class="sourceLineNo">215</span>   * @throws InterruptedException if the loader thread was interrupted<a name="line.215"></a>
-<span class="sourceLineNo">216</span>   * @throws TimeoutException<a name="line.216"></a>
-<span class="sourceLineNo">217</span>   */<a name="line.217"></a>
-<span class="sourceLineNo">218</span>  public boolean load() throws ExecutionException, InterruptedException, TimeoutException {<a name="line.218"></a>
-<span class="sourceLineNo">219</span>    setConf();<a name="line.219"></a>
-<span class="sourceLineNo">220</span>    ExecutorService loadPool = Executors.newFixedThreadPool(1);<a name="line.220"></a>
-<span class="sourceLineNo">221</span>    Future&lt;Boolean&gt; loadTask = loadPool.submit(new Load(this));<a name="line.221"></a>
-<span class="sourceLineNo">222</span>    loadPool.shutdown();<a name="line.222"></a>
-<span class="sourceLineNo">223</span>    try {<a name="line.223"></a>
-<span class="sourceLineNo">224</span>      if (!loadPool.awaitTermination((long) this.timeout, TimeUnit.SECONDS)) {<a name="line.224"></a>
-<span class="sourceLineNo">225</span>        LOG.warn("Timed out before finishing the loading operation. Timeout:" + this.timeout<a name="line.225"></a>
-<span class="sourceLineNo">226</span>            + "sec");<a name="line.226"></a>
-<span class="sourceLineNo">227</span>        loadPool.shutdownNow();<a name="line.227"></a>
-<span class="sourceLineNo">228</span>      }<a name="line.228"></a>
-<span class="sourceLineNo">229</span>    } catch (InterruptedException e) {<a name="line.229"></a>
-<span class="sourceLineNo">230</span>      loadPool.shutdownNow();<a name="line.230"></a>
-<span class="sourceLineNo">231</span>      Thread.currentThread().interrupt();<a name="line.231"></a>
-<span class="sourceLineNo">232</span>    }<a name="line.232"></a>
-<span class="sourceLineNo">233</span>    try {<a name="line.233"></a>
-<span class="sourceLineNo">234</span>      return loadTask.get(5, TimeUnit.SECONDS);<a name="line.234"></a>
-<span class="sourceLineNo">235</span>    } catch (InterruptedException e) {<a name="line.235"></a>
-<span class="sourceLineNo">236</span>      LOG.warn("Interrupted while loading Regions on " + this.hostname, e);<a name="line.236"></a>
-<span class="sourceLineNo">237</span>      throw e;<a name="line.237"></a>
-<span class="sourceLineNo">238</span>    } catch (ExecutionException e) {<a name="line.238"></a>
-<span class="sourceLineNo">239</span>      LOG.error("Error while loading regions on RegionServer " + this.hostname, e);<a name="line.239"></a>
-<span class="sourceLineNo">240</span>      throw e;<a name="line.240"></a>
-<span class="sourceLineNo">241</span>    }<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>  private class Load implements Callable&lt;Boolean&gt; {<a name="line.244"></a>
-<span class="sourceLineNo">245</span><a name="line.245"></a>
-<span class="sourceLineNo">246</span>    private RegionMover rm;<a name="line.246"></a>
-<span class="sourceLineNo">247</span><a name="line.247"></a>
-<span class="sourceLineNo">248</span>    public Load(RegionMover rm) {<a name="line.248"></a>
-<span class="sourceLineNo">249</span>      this.rm = rm;<a name="line.249"></a>
-<span class="sourceLineNo">250</span>    }<a name="line.250"></a>
-<span class="sourceLineNo">251</span><a name="line.251"></a>
-<span class="sourceLineNo">252</span>    @Override<a name="line.252"></a>
-<span class="sourceLineNo">253</span>    public Boolean call() throws IOException {<a name="line.253"></a>
-<span class="sourceLineNo">254</span>      Connection conn = ConnectionFactory.createConnection(rm.conf);<a name="line.254"></a>
-<span class="sourceLineNo">255</span>      try {<a name="line.255"></a>
-<span class="sourceLineNo">256</span>        List&lt;RegionInfo&gt; regionsToMove = readRegionsFromFile(rm.filename);<a name="line.256"></a>
-<span class="sourceLineNo">257</span>        if (regionsToMove.isEmpty()) {<a name="line.257"></a>
-<span class="sourceLineNo">258</span>          LOG.info("No regions to load.Exiting");<a name="line.258"></a>
-<span class="sourceLineNo">259</span>          return true;<a name="line.259"></a>
-<span class="sourceLineNo">260</span>        }<a name="line.260"></a>
-<span class="sourceLineNo">261</span>        Admin admin = conn.getAdmin();<a name="line.261"></a>
-<span class="sourceLineNo">262</span>        try {<a name="line.262"></a>
-<span class="sourceLineNo">263</span>          loadRegions(admin, rm.hostname, rm.port, regionsToMove, rm.ack);<a name="line.263"></a>
-<span class="sourceLineNo">264</span>        } finally {<a name="line.264"></a>
-<span class="sourceLineNo">265</span>          admin.close();<a name="line.265"></a>
-<span class="sourceLineNo">266</span>        }<a name="line.266"></a>
-<span class="sourceLineNo">267</span>      } catch (Exception e) {<a name="line.267"></a>
-<span class="sourceLineNo">268</span>        LOG.error("Error while loading regions to " + rm.hostname, e);<a name="line.268"></a>
-<span class="sourceLineNo">269</span>        return false;<a name="line.269"></a>
-<span class="sourceLineNo">270</span>      } finally {<a name="line.270"></a>
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<TRUNCATED>

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