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From mi...@apache.org
Subject [04/51] [partial] hbase-site git commit: Published site at 60d33ce34191533bb858852584bd9bddfeb16a23.
Date Wed, 16 Dec 2015 16:50:49 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/539ad177/testdevapidocs/src-html/org/apache/hadoop/hbase/wal/WALPerformanceEvaluation.WALPutBenchmark.html
----------------------------------------------------------------------
diff --git a/testdevapidocs/src-html/org/apache/hadoop/hbase/wal/WALPerformanceEvaluation.WALPutBenchmark.html b/testdevapidocs/src-html/org/apache/hadoop/hbase/wal/WALPerformanceEvaluation.WALPutBenchmark.html
index 9a57ce1..0317558 100644
--- a/testdevapidocs/src-html/org/apache/hadoop/hbase/wal/WALPerformanceEvaluation.WALPutBenchmark.html
+++ b/testdevapidocs/src-html/org/apache/hadoop/hbase/wal/WALPerformanceEvaluation.WALPutBenchmark.html
@@ -70,532 +70,536 @@
 <span class="sourceLineNo">062</span>import org.apache.htrace.TraceScope;<a name="line.62"></a>
 <span class="sourceLineNo">063</span>import org.apache.htrace.impl.ProbabilitySampler;<a name="line.63"></a>
 <span class="sourceLineNo">064</span><a name="line.64"></a>
-<span class="sourceLineNo">065</span>import com.yammer.metrics.core.Histogram;<a name="line.65"></a>
-<span class="sourceLineNo">066</span>import com.yammer.metrics.core.Meter;<a name="line.66"></a>
-<span class="sourceLineNo">067</span>import com.yammer.metrics.core.MetricsRegistry;<a name="line.67"></a>
-<span class="sourceLineNo">068</span>import com.yammer.metrics.reporting.ConsoleReporter;<a name="line.68"></a>
-<span class="sourceLineNo">069</span><a name="line.69"></a>
-<span class="sourceLineNo">070</span>// imports for things that haven't moved from regionserver.wal yet.<a name="line.70"></a>
-<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.regionserver.wal.SecureProtobufLogReader;<a name="line.71"></a>
-<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.regionserver.wal.SecureProtobufLogWriter;<a name="line.72"></a>
-<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.regionserver.wal.WALActionsListener;<a name="line.73"></a>
-<span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.regionserver.wal.WALEdit;<a name="line.74"></a>
-<span class="sourceLineNo">075</span><a name="line.75"></a>
-<span class="sourceLineNo">076</span>/**<a name="line.76"></a>
-<span class="sourceLineNo">077</span> * This class runs performance benchmarks for {@link WAL}.<a name="line.77"></a>
-<span class="sourceLineNo">078</span> * See usage for this tool by running:<a name="line.78"></a>
-<span class="sourceLineNo">079</span> * &lt;code&gt;$ hbase org.apache.hadoop.hbase.wal.WALPerformanceEvaluation -h&lt;/code&gt;<a name="line.79"></a>
-<span class="sourceLineNo">080</span> */<a name="line.80"></a>
-<span class="sourceLineNo">081</span>@InterfaceAudience.Private<a name="line.81"></a>
-<span class="sourceLineNo">082</span>public final class WALPerformanceEvaluation extends Configured implements Tool {<a name="line.82"></a>
-<span class="sourceLineNo">083</span>  private static final Log LOG = LogFactory.getLog(WALPerformanceEvaluation.class.getName());<a name="line.83"></a>
-<span class="sourceLineNo">084</span>  private final MetricsRegistry metrics = new MetricsRegistry();<a name="line.84"></a>
-<span class="sourceLineNo">085</span>  private final Meter syncMeter =<a name="line.85"></a>
-<span class="sourceLineNo">086</span>    metrics.newMeter(WALPerformanceEvaluation.class, "syncMeter", "syncs", TimeUnit.MILLISECONDS);<a name="line.86"></a>
-<span class="sourceLineNo">087</span>  private final Histogram syncHistogram =<a name="line.87"></a>
-<span class="sourceLineNo">088</span>    metrics.newHistogram(WALPerformanceEvaluation.class, "syncHistogram", "nanos-between-syncs",<a name="line.88"></a>
-<span class="sourceLineNo">089</span>      true);<a name="line.89"></a>
-<span class="sourceLineNo">090</span>  private final Histogram syncCountHistogram =<a name="line.90"></a>
-<span class="sourceLineNo">091</span>      metrics.newHistogram(WALPerformanceEvaluation.class, "syncCountHistogram", "countPerSync",<a name="line.91"></a>
-<span class="sourceLineNo">092</span>        true);<a name="line.92"></a>
-<span class="sourceLineNo">093</span>  private final Meter appendMeter =<a name="line.93"></a>
-<span class="sourceLineNo">094</span>    metrics.newMeter(WALPerformanceEvaluation.class, "appendMeter", "bytes",<a name="line.94"></a>
-<span class="sourceLineNo">095</span>      TimeUnit.MILLISECONDS);<a name="line.95"></a>
-<span class="sourceLineNo">096</span>  private final Histogram latencyHistogram =<a name="line.96"></a>
-<span class="sourceLineNo">097</span>    metrics.newHistogram(WALPerformanceEvaluation.class, "latencyHistogram", "nanos", true);<a name="line.97"></a>
-<span class="sourceLineNo">098</span><a name="line.98"></a>
-<span class="sourceLineNo">099</span>  private final MultiVersionConcurrencyControl mvcc = new MultiVersionConcurrencyControl();<a name="line.99"></a>
-<span class="sourceLineNo">100</span><a name="line.100"></a>
-<span class="sourceLineNo">101</span>  private HBaseTestingUtility TEST_UTIL;<a name="line.101"></a>
-<span class="sourceLineNo">102</span><a name="line.102"></a>
-<span class="sourceLineNo">103</span>  static final String TABLE_NAME = "WALPerformanceEvaluation";<a name="line.103"></a>
-<span class="sourceLineNo">104</span>  static final String QUALIFIER_PREFIX = "q";<a name="line.104"></a>
-<span class="sourceLineNo">105</span>  static final String FAMILY_PREFIX = "cf";<a name="line.105"></a>
-<span class="sourceLineNo">106</span><a name="line.106"></a>
-<span class="sourceLineNo">107</span>  private int numQualifiers = 1;<a name="line.107"></a>
-<span class="sourceLineNo">108</span>  private int valueSize = 512;<a name="line.108"></a>
-<span class="sourceLineNo">109</span>  private int keySize = 16;<a name="line.109"></a>
-<span class="sourceLineNo">110</span><a name="line.110"></a>
-<span class="sourceLineNo">111</span>  @Override<a name="line.111"></a>
-<span class="sourceLineNo">112</span>  public void setConf(Configuration conf) {<a name="line.112"></a>
-<span class="sourceLineNo">113</span>    super.setConf(conf);<a name="line.113"></a>
-<span class="sourceLineNo">114</span>    TEST_UTIL = new HBaseTestingUtility(conf);<a name="line.114"></a>
-<span class="sourceLineNo">115</span>  }<a name="line.115"></a>
-<span class="sourceLineNo">116</span><a name="line.116"></a>
-<span class="sourceLineNo">117</span>  /**<a name="line.117"></a>
-<span class="sourceLineNo">118</span>   * Perform WAL.append() of Put object, for the number of iterations requested.<a name="line.118"></a>
-<span class="sourceLineNo">119</span>   * Keys and Vaues are generated randomly, the number of column families,<a name="line.119"></a>
-<span class="sourceLineNo">120</span>   * qualifiers and key/value size is tunable by the user.<a name="line.120"></a>
-<span class="sourceLineNo">121</span>   */<a name="line.121"></a>
-<span class="sourceLineNo">122</span>  class WALPutBenchmark implements Runnable {<a name="line.122"></a>
-<span class="sourceLineNo">123</span>    private final long numIterations;<a name="line.123"></a>
-<span class="sourceLineNo">124</span>    private final int numFamilies;<a name="line.124"></a>
-<span class="sourceLineNo">125</span>    private final boolean noSync;<a name="line.125"></a>
-<span class="sourceLineNo">126</span>    private final HRegion region;<a name="line.126"></a>
-<span class="sourceLineNo">127</span>    private final int syncInterval;<a name="line.127"></a>
-<span class="sourceLineNo">128</span>    private final HTableDescriptor htd;<a name="line.128"></a>
-<span class="sourceLineNo">129</span>    private final Sampler loopSampler;<a name="line.129"></a>
-<span class="sourceLineNo">130</span><a name="line.130"></a>
-<span class="sourceLineNo">131</span>    WALPutBenchmark(final HRegion region, final HTableDescriptor htd,<a name="line.131"></a>
-<span class="sourceLineNo">132</span>        final long numIterations, final boolean noSync, final int syncInterval,<a name="line.132"></a>
-<span class="sourceLineNo">133</span>        final double traceFreq) {<a name="line.133"></a>
-<span class="sourceLineNo">134</span>      this.numIterations = numIterations;<a name="line.134"></a>
-<span class="sourceLineNo">135</span>      this.noSync = noSync;<a name="line.135"></a>
-<span class="sourceLineNo">136</span>      this.syncInterval = syncInterval;<a name="line.136"></a>
-<span class="sourceLineNo">137</span>      this.numFamilies = htd.getColumnFamilies().length;<a name="line.137"></a>
-<span class="sourceLineNo">138</span>      this.region = region;<a name="line.138"></a>
-<span class="sourceLineNo">139</span>      this.htd = htd;<a name="line.139"></a>
-<span class="sourceLineNo">140</span>      String spanReceivers = getConf().get("hbase.trace.spanreceiver.classes");<a name="line.140"></a>
-<span class="sourceLineNo">141</span>      if (spanReceivers == null || spanReceivers.isEmpty()) {<a name="line.141"></a>
-<span class="sourceLineNo">142</span>        loopSampler = Sampler.NEVER;<a name="line.142"></a>
-<span class="sourceLineNo">143</span>      } else {<a name="line.143"></a>
-<span class="sourceLineNo">144</span>        if (traceFreq &lt;= 0.0) {<a name="line.144"></a>
-<span class="sourceLineNo">145</span>          LOG.warn("Tracing enabled but traceFreq=0.");<a name="line.145"></a>
-<span class="sourceLineNo">146</span>          loopSampler = Sampler.NEVER;<a name="line.146"></a>
-<span class="sourceLineNo">147</span>        } else if (traceFreq &gt;= 1.0) {<a name="line.147"></a>
-<span class="sourceLineNo">148</span>          loopSampler = Sampler.ALWAYS;<a name="line.148"></a>
-<span class="sourceLineNo">149</span>          if (numIterations &gt; 1000) {<a name="line.149"></a>
-<span class="sourceLineNo">150</span>            LOG.warn("Full tracing of all iterations will produce a lot of data. Be sure your"<a name="line.150"></a>
-<span class="sourceLineNo">151</span>              + " SpanReciever can keep up.");<a name="line.151"></a>
-<span class="sourceLineNo">152</span>          }<a name="line.152"></a>
-<span class="sourceLineNo">153</span>        } else {<a name="line.153"></a>
-<span class="sourceLineNo">154</span>          getConf().setDouble("hbase.sampler.fraction", traceFreq);<a name="line.154"></a>
-<span class="sourceLineNo">155</span>          loopSampler = new ProbabilitySampler(new HBaseHTraceConfiguration(getConf()));<a name="line.155"></a>
-<span class="sourceLineNo">156</span>        }<a name="line.156"></a>
-<span class="sourceLineNo">157</span>      }<a name="line.157"></a>
-<span class="sourceLineNo">158</span>    }<a name="line.158"></a>
-<span class="sourceLineNo">159</span><a name="line.159"></a>
-<span class="sourceLineNo">160</span>    @Override<a name="line.160"></a>
-<span class="sourceLineNo">161</span>    public void run() {<a name="line.161"></a>
-<span class="sourceLineNo">162</span>      byte[] key = new byte[keySize];<a name="line.162"></a>
-<span class="sourceLineNo">163</span>      byte[] value = new byte[valueSize];<a name="line.163"></a>
-<span class="sourceLineNo">164</span>      Random rand = new Random(Thread.currentThread().getId());<a name="line.164"></a>
-<span class="sourceLineNo">165</span>      WAL wal = region.getWAL();<a name="line.165"></a>
-<span class="sourceLineNo">166</span><a name="line.166"></a>
-<span class="sourceLineNo">167</span>      TraceScope threadScope =<a name="line.167"></a>
-<span class="sourceLineNo">168</span>        Trace.startSpan("WALPerfEval." + Thread.currentThread().getName());<a name="line.168"></a>
-<span class="sourceLineNo">169</span>      try {<a name="line.169"></a>
-<span class="sourceLineNo">170</span>        long startTime = System.currentTimeMillis();<a name="line.170"></a>
-<span class="sourceLineNo">171</span>        int lastSync = 0;<a name="line.171"></a>
-<span class="sourceLineNo">172</span>        for (int i = 0; i &lt; numIterations; ++i) {<a name="line.172"></a>
-<span class="sourceLineNo">173</span>          assert Trace.currentSpan() == threadScope.getSpan() : "Span leak detected.";<a name="line.173"></a>
-<span class="sourceLineNo">174</span>          TraceScope loopScope = Trace.startSpan("runLoopIter" + i, loopSampler);<a name="line.174"></a>
-<span class="sourceLineNo">175</span>          try {<a name="line.175"></a>
-<span class="sourceLineNo">176</span>            long now = System.nanoTime();<a name="line.176"></a>
-<span class="sourceLineNo">177</span>            Put put = setupPut(rand, key, value, numFamilies);<a name="line.177"></a>
-<span class="sourceLineNo">178</span>            WALEdit walEdit = new WALEdit();<a name="line.178"></a>
-<span class="sourceLineNo">179</span>            addFamilyMapToWALEdit(put.getFamilyCellMap(), walEdit);<a name="line.179"></a>
-<span class="sourceLineNo">180</span>            HRegionInfo hri = region.getRegionInfo();<a name="line.180"></a>
-<span class="sourceLineNo">181</span>            final WALKey logkey =<a name="line.181"></a>
-<span class="sourceLineNo">182</span>                new WALKey(hri.getEncodedNameAsBytes(), hri.getTable(), now, mvcc);<a name="line.182"></a>
-<span class="sourceLineNo">183</span>            wal.append(htd, hri, logkey, walEdit, true);<a name="line.183"></a>
-<span class="sourceLineNo">184</span>            if (!this.noSync) {<a name="line.184"></a>
-<span class="sourceLineNo">185</span>              if (++lastSync &gt;= this.syncInterval) {<a name="line.185"></a>
-<span class="sourceLineNo">186</span>                wal.sync();<a name="line.186"></a>
-<span class="sourceLineNo">187</span>                lastSync = 0;<a name="line.187"></a>
-<span class="sourceLineNo">188</span>              }<a name="line.188"></a>
-<span class="sourceLineNo">189</span>            }<a name="line.189"></a>
-<span class="sourceLineNo">190</span>            latencyHistogram.update(System.nanoTime() - now);<a name="line.190"></a>
-<span class="sourceLineNo">191</span>          } finally {<a name="line.191"></a>
-<span class="sourceLineNo">192</span>            loopScope.close();<a name="line.192"></a>
-<span class="sourceLineNo">193</span>          }<a name="line.193"></a>
-<span class="sourceLineNo">194</span>        }<a name="line.194"></a>
-<span class="sourceLineNo">195</span>        long totalTime = (System.currentTimeMillis() - startTime);<a name="line.195"></a>
-<span class="sourceLineNo">196</span>        logBenchmarkResult(Thread.currentThread().getName(), numIterations, totalTime);<a name="line.196"></a>
-<span class="sourceLineNo">197</span>      } catch (Exception e) {<a name="line.197"></a>
-<span class="sourceLineNo">198</span>        LOG.error(getClass().getSimpleName() + " Thread failed", e);<a name="line.198"></a>
-<span class="sourceLineNo">199</span>      } finally {<a name="line.199"></a>
-<span class="sourceLineNo">200</span>        threadScope.close();<a name="line.200"></a>
-<span class="sourceLineNo">201</span>      }<a name="line.201"></a>
-<span class="sourceLineNo">202</span>    }<a name="line.202"></a>
-<span class="sourceLineNo">203</span>  }<a name="line.203"></a>
-<span class="sourceLineNo">204</span><a name="line.204"></a>
-<span class="sourceLineNo">205</span>  @Override<a name="line.205"></a>
-<span class="sourceLineNo">206</span>  public int run(String[] args) throws Exception {<a name="line.206"></a>
-<span class="sourceLineNo">207</span>    Path rootRegionDir = null;<a name="line.207"></a>
-<span class="sourceLineNo">208</span>    int numThreads = 1;<a name="line.208"></a>
-<span class="sourceLineNo">209</span>    long numIterations = 1000000;<a name="line.209"></a>
-<span class="sourceLineNo">210</span>    int numFamilies = 1;<a name="line.210"></a>
-<span class="sourceLineNo">211</span>    int syncInterval = 0;<a name="line.211"></a>
-<span class="sourceLineNo">212</span>    boolean noSync = false;<a name="line.212"></a>
-<span class="sourceLineNo">213</span>    boolean verify = false;<a name="line.213"></a>
-<span class="sourceLineNo">214</span>    boolean verbose = false;<a name="line.214"></a>
-<span class="sourceLineNo">215</span>    boolean cleanup = true;<a name="line.215"></a>
-<span class="sourceLineNo">216</span>    boolean noclosefs = false;<a name="line.216"></a>
-<span class="sourceLineNo">217</span>    long roll = Long.MAX_VALUE;<a name="line.217"></a>
-<span class="sourceLineNo">218</span>    boolean compress = false;<a name="line.218"></a>
-<span class="sourceLineNo">219</span>    String cipher = null;<a name="line.219"></a>
-<span class="sourceLineNo">220</span>    int numRegions = 1;<a name="line.220"></a>
-<span class="sourceLineNo">221</span>    String spanReceivers = getConf().get("hbase.trace.spanreceiver.classes");<a name="line.221"></a>
-<span class="sourceLineNo">222</span>    boolean trace = spanReceivers != null &amp;&amp; !spanReceivers.isEmpty();<a name="line.222"></a>
-<span class="sourceLineNo">223</span>    double traceFreq = 1.0;<a name="line.223"></a>
-<span class="sourceLineNo">224</span>    // Process command line args<a name="line.224"></a>
-<span class="sourceLineNo">225</span>    for (int i = 0; i &lt; args.length; i++) {<a name="line.225"></a>
-<span class="sourceLineNo">226</span>      String cmd = args[i];<a name="line.226"></a>
-<span class="sourceLineNo">227</span>      try {<a name="line.227"></a>
-<span class="sourceLineNo">228</span>        if (cmd.equals("-threads")) {<a name="line.228"></a>
-<span class="sourceLineNo">229</span>          numThreads = Integer.parseInt(args[++i]);<a name="line.229"></a>
-<span class="sourceLineNo">230</span>        } else if (cmd.equals("-iterations")) {<a name="line.230"></a>
-<span class="sourceLineNo">231</span>          numIterations = Long.parseLong(args[++i]);<a name="line.231"></a>
-<span class="sourceLineNo">232</span>        } else if (cmd.equals("-path")) {<a name="line.232"></a>
-<span class="sourceLineNo">233</span>          rootRegionDir = new Path(args[++i]);<a name="line.233"></a>
-<span class="sourceLineNo">234</span>        } else if (cmd.equals("-families")) {<a name="line.234"></a>
-<span class="sourceLineNo">235</span>          numFamilies = Integer.parseInt(args[++i]);<a name="line.235"></a>
-<span class="sourceLineNo">236</span>        } else if (cmd.equals("-qualifiers")) {<a name="line.236"></a>
-<span class="sourceLineNo">237</span>          numQualifiers = Integer.parseInt(args[++i]);<a name="line.237"></a>
-<span class="sourceLineNo">238</span>        } else if (cmd.equals("-keySize")) {<a name="line.238"></a>
-<span class="sourceLineNo">239</span>          keySize = Integer.parseInt(args[++i]);<a name="line.239"></a>
-<span class="sourceLineNo">240</span>        } else if (cmd.equals("-valueSize")) {<a name="line.240"></a>
-<span class="sourceLineNo">241</span>          valueSize = Integer.parseInt(args[++i]);<a name="line.241"></a>
-<span class="sourceLineNo">242</span>        } else if (cmd.equals("-syncInterval")) {<a name="line.242"></a>
-<span class="sourceLineNo">243</span>          syncInterval = Integer.parseInt(args[++i]);<a name="line.243"></a>
-<span class="sourceLineNo">244</span>        } else if (cmd.equals("-nosync")) {<a name="line.244"></a>
-<span class="sourceLineNo">245</span>          noSync = true;<a name="line.245"></a>
-<span class="sourceLineNo">246</span>        } else if (cmd.equals("-verify")) {<a name="line.246"></a>
-<span class="sourceLineNo">247</span>          verify = true;<a name="line.247"></a>
-<span class="sourceLineNo">248</span>        } else if (cmd.equals("-verbose")) {<a name="line.248"></a>
-<span class="sourceLineNo">249</span>          verbose = true;<a name="line.249"></a>
-<span class="sourceLineNo">250</span>        } else if (cmd.equals("-nocleanup")) {<a name="line.250"></a>
-<span class="sourceLineNo">251</span>          cleanup = false;<a name="line.251"></a>
-<span class="sourceLineNo">252</span>        } else if (cmd.equals("-noclosefs")) {<a name="line.252"></a>
-<span class="sourceLineNo">253</span>          noclosefs = true;<a name="line.253"></a>
-<span class="sourceLineNo">254</span>        } else if (cmd.equals("-roll")) {<a name="line.254"></a>
-<span class="sourceLineNo">255</span>          roll = Long.parseLong(args[++i]);<a name="line.255"></a>
-<span class="sourceLineNo">256</span>        } else if (cmd.equals("-compress")) {<a name="line.256"></a>
-<span class="sourceLineNo">257</span>          compress = true;<a name="line.257"></a>
-<span class="sourceLineNo">258</span>        } else if (cmd.equals("-encryption")) {<a name="line.258"></a>
-<span class="sourceLineNo">259</span>          cipher = args[++i];<a name="line.259"></a>
-<span class="sourceLineNo">260</span>        } else if (cmd.equals("-regions")) {<a name="line.260"></a>
-<span class="sourceLineNo">261</span>          numRegions = Integer.parseInt(args[++i]);<a name="line.261"></a>
-<span class="sourceLineNo">262</span>        } else if (cmd.equals("-traceFreq")) {<a name="line.262"></a>
-<span class="sourceLineNo">263</span>          traceFreq = Double.parseDouble(args[++i]);<a name="line.263"></a>
-<span class="sourceLineNo">264</span>        } else if (cmd.equals("-h")) {<a name="line.264"></a>
-<span class="sourceLineNo">265</span>          printUsageAndExit();<a name="line.265"></a>
-<span class="sourceLineNo">266</span>        } else if (cmd.equals("--help")) {<a name="line.266"></a>
-<span class="sourceLineNo">267</span>          printUsageAndExit();<a name="line.267"></a>
-<span class="sourceLineNo">268</span>        } else {<a name="line.268"></a>
-<span class="sourceLineNo">269</span>          System.err.println("UNEXPECTED: " + cmd);<a name="line.269"></a>
-<span class="sourceLineNo">270</span>          printUsageAndExit();<a name="line.270"></a>
-<span class="sourceLineNo">271</span>        }<a name="line.271"></a>
-<span class="sourceLineNo">272</span>      } catch (Exception e) {<a name="line.272"></a>
-<span class="sourceLineNo">273</span>        printUsageAndExit();<a name="line.273"></a>
-<span class="sourceLineNo">274</span>      }<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>    if (compress) {<a name="line.277"></a>
-<span class="sourceLineNo">278</span>      Configuration conf = getConf();<a name="line.278"></a>
-<span class="sourceLineNo">279</span>      conf.setBoolean(HConstants.ENABLE_WAL_COMPRESSION, true);<a name="line.279"></a>
-<span class="sourceLineNo">280</span>    }<a name="line.280"></a>
-<span class="sourceLineNo">281</span><a name="line.281"></a>
-<span class="sourceLineNo">282</span>    if (cipher != null) {<a name="line.282"></a>
-<span class="sourceLineNo">283</span>      // Set up WAL for encryption<a name="line.283"></a>
-<span class="sourceLineNo">284</span>      Configuration conf = getConf();<a name="line.284"></a>
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-<span class="sourceLineNo">294</span><a name="line.294"></a>
-<span class="sourceLineNo">295</span>    if (numThreads &lt; numRegions) {<a name="line.295"></a>
-<span class="sourceLineNo">296</span>      LOG.warn("Number of threads is less than the number of regions; some regions will sit idle.");<a name="line.296"></a>
-<span class="sourceLineNo">297</span>    }<a name="line.297"></a>
-<span class="sourceLineNo">298</span><a name="line.298"></a>
-<span class="sourceLineNo">299</span>    // Internal config. goes off number of threads; if more threads than handlers, stuff breaks.<a name="line.299"></a>
-<span class="sourceLineNo">300</span>    // In regionserver, number of handlers == number of threads.<a name="line.300"></a>
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-<span class="sourceLineNo">302</span><a name="line.302"></a>
-<span class="sourceLineNo">303</span>    // Run WAL Performance Evaluation<a name="line.303"></a>
-<span class="sourceLineNo">304</span>    // First set the fs from configs.  In case we are on hadoop1<a name="line.304"></a>
-<span class="sourceLineNo">305</span>    FSUtils.setFsDefault(getConf(), FSUtils.getRootDir(getConf()));<a name="line.305"></a>
-<span class="sourceLineNo">306</span>    FileSystem fs = FileSystem.get(getConf());<a name="line.306"></a>
-<span class="sourceLineNo">307</span>    LOG.info("FileSystem: " + fs);<a name="line.307"></a>
-<span class="sourceLineNo">308</span><a name="line.308"></a>
-<span class="sourceLineNo">309</span>    SpanReceiverHost receiverHost = trace ? SpanReceiverHost.getInstance(getConf()) : null;<a name="line.309"></a>
-<span class="sourceLineNo">310</span>    final Sampler&lt;?&gt; sampler = trace ? Sampler.ALWAYS : Sampler.NEVER;<a name="line.310"></a>
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-<span class="sourceLineNo">312</span><a name="line.312"></a>
-<span class="sourceLineNo">313</span>    try {<a name="line.313"></a>
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-<span class="sourceLineNo">329</span>          // Initialize Table Descriptor<a name="line.329"></a>
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-<span class="sourceLineNo">339</span>          ", syncInterval=" + syncInterval, numIterations * numThreads, putTime);<a name="line.339"></a>
-<span class="sourceLineNo">340</span>        <a name="line.340"></a>
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-<span class="sourceLineNo">353</span>          if (fsss.length == 0) throw new IllegalStateException("No WAL found");<a name="line.353"></a>
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-<span class="sourceLineNo">361</span>            throw new IllegalStateException("Counted=" + editCount + ", expected=" + expected);<a name="line.361"></a>
+<span class="sourceLineNo">065</span>import com.codahale.metrics.ConsoleReporter;<a name="line.65"></a>
+<span class="sourceLineNo">066</span>import com.codahale.metrics.Histogram;<a name="line.66"></a>
+<span class="sourceLineNo">067</span>import com.codahale.metrics.Meter;<a name="line.67"></a>
+<span class="sourceLineNo">068</span>import com.codahale.metrics.MetricRegistry;<a name="line.68"></a>
+<span class="sourceLineNo">069</span>import com.codahale.metrics.MetricFilter;<a name="line.69"></a>
+<span class="sourceLineNo">070</span><a name="line.70"></a>
+<span class="sourceLineNo">071</span>// imports for things that haven't moved from regionserver.wal yet.<a name="line.71"></a>
+<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.regionserver.wal.SecureProtobufLogReader;<a name="line.72"></a>
+<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.regionserver.wal.SecureProtobufLogWriter;<a name="line.73"></a>
+<span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.regionserver.wal.WALActionsListener;<a name="line.74"></a>
+<span class="sourceLineNo">075</span>import org.apache.hadoop.hbase.regionserver.wal.WALEdit;<a name="line.75"></a>
+<span class="sourceLineNo">076</span><a name="line.76"></a>
+<span class="sourceLineNo">077</span>import static com.codahale.metrics.MetricRegistry.name;<a name="line.77"></a>
+<span class="sourceLineNo">078</span><a name="line.78"></a>
+<span class="sourceLineNo">079</span>/**<a name="line.79"></a>
+<span class="sourceLineNo">080</span> * This class runs performance benchmarks for {@link WAL}.<a name="line.80"></a>
+<span class="sourceLineNo">081</span> * See usage for this tool by running:<a name="line.81"></a>
+<span class="sourceLineNo">082</span> * &lt;code&gt;$ hbase org.apache.hadoop.hbase.wal.WALPerformanceEvaluation -h&lt;/code&gt;<a name="line.82"></a>
+<span class="sourceLineNo">083</span> */<a name="line.83"></a>
+<span class="sourceLineNo">084</span>@InterfaceAudience.Private<a name="line.84"></a>
+<span class="sourceLineNo">085</span>public final class WALPerformanceEvaluation extends Configured implements Tool {<a name="line.85"></a>
+<span class="sourceLineNo">086</span>  private static final Log LOG = LogFactory.getLog(WALPerformanceEvaluation.class.getName());<a name="line.86"></a>
+<span class="sourceLineNo">087</span>  private final MetricRegistry metrics = new MetricRegistry();<a name="line.87"></a>
+<span class="sourceLineNo">088</span>  private final Meter syncMeter =<a name="line.88"></a>
+<span class="sourceLineNo">089</span>    metrics.meter(name(WALPerformanceEvaluation.class, "syncMeter", "syncs"));<a name="line.89"></a>
+<span class="sourceLineNo">090</span><a name="line.90"></a>
+<span class="sourceLineNo">091</span>  private final Histogram syncHistogram = metrics.histogram(<a name="line.91"></a>
+<span class="sourceLineNo">092</span>    name(WALPerformanceEvaluation.class, "syncHistogram", "nanos-between-syncs"));<a name="line.92"></a>
+<span class="sourceLineNo">093</span>  private final Histogram syncCountHistogram = metrics.histogram(<a name="line.93"></a>
+<span class="sourceLineNo">094</span>    name(WALPerformanceEvaluation.class, "syncCountHistogram", "countPerSync"));<a name="line.94"></a>
+<span class="sourceLineNo">095</span>  private final Meter appendMeter = metrics.meter(<a name="line.95"></a>
+<span class="sourceLineNo">096</span>    name(WALPerformanceEvaluation.class, "appendMeter", "bytes"));<a name="line.96"></a>
+<span class="sourceLineNo">097</span>  private final Histogram latencyHistogram =<a name="line.97"></a>
+<span class="sourceLineNo">098</span>    metrics.histogram(name(WALPerformanceEvaluation.class, "latencyHistogram", "nanos"));<a name="line.98"></a>
+<span class="sourceLineNo">099</span><a name="line.99"></a>
+<span class="sourceLineNo">100</span>  private final MultiVersionConcurrencyControl mvcc = new MultiVersionConcurrencyControl();<a name="line.100"></a>
+<span class="sourceLineNo">101</span><a name="line.101"></a>
+<span class="sourceLineNo">102</span>  private HBaseTestingUtility TEST_UTIL;<a name="line.102"></a>
+<span class="sourceLineNo">103</span><a name="line.103"></a>
+<span class="sourceLineNo">104</span>  static final String TABLE_NAME = "WALPerformanceEvaluation";<a name="line.104"></a>
+<span class="sourceLineNo">105</span>  static final String QUALIFIER_PREFIX = "q";<a name="line.105"></a>
+<span class="sourceLineNo">106</span>  static final String FAMILY_PREFIX = "cf";<a name="line.106"></a>
+<span class="sourceLineNo">107</span><a name="line.107"></a>
+<span class="sourceLineNo">108</span>  private int numQualifiers = 1;<a name="line.108"></a>
+<span class="sourceLineNo">109</span>  private int valueSize = 512;<a name="line.109"></a>
+<span class="sourceLineNo">110</span>  private int keySize = 16;<a name="line.110"></a>
+<span class="sourceLineNo">111</span><a name="line.111"></a>
+<span class="sourceLineNo">112</span>  @Override<a name="line.112"></a>
+<span class="sourceLineNo">113</span>  public void setConf(Configuration conf) {<a name="line.113"></a>
+<span class="sourceLineNo">114</span>    super.setConf(conf);<a name="line.114"></a>
+<span class="sourceLineNo">115</span>    TEST_UTIL = new HBaseTestingUtility(conf);<a name="line.115"></a>
+<span class="sourceLineNo">116</span>  }<a name="line.116"></a>
+<span class="sourceLineNo">117</span><a name="line.117"></a>
+<span class="sourceLineNo">118</span>  /**<a name="line.118"></a>
+<span class="sourceLineNo">119</span>   * Perform WAL.append() of Put object, for the number of iterations requested.<a name="line.119"></a>
+<span class="sourceLineNo">120</span>   * Keys and Vaues are generated randomly, the number of column families,<a name="line.120"></a>
+<span class="sourceLineNo">121</span>   * qualifiers and key/value size is tunable by the user.<a name="line.121"></a>
+<span class="sourceLineNo">122</span>   */<a name="line.122"></a>
+<span class="sourceLineNo">123</span>  class WALPutBenchmark implements Runnable {<a name="line.123"></a>
+<span class="sourceLineNo">124</span>    private final long numIterations;<a name="line.124"></a>
+<span class="sourceLineNo">125</span>    private final int numFamilies;<a name="line.125"></a>
+<span class="sourceLineNo">126</span>    private final boolean noSync;<a name="line.126"></a>
+<span class="sourceLineNo">127</span>    private final HRegion region;<a name="line.127"></a>
+<span class="sourceLineNo">128</span>    private final int syncInterval;<a name="line.128"></a>
+<span class="sourceLineNo">129</span>    private final HTableDescriptor htd;<a name="line.129"></a>
+<span class="sourceLineNo">130</span>    private final Sampler loopSampler;<a name="line.130"></a>
+<span class="sourceLineNo">131</span><a name="line.131"></a>
+<span class="sourceLineNo">132</span>    WALPutBenchmark(final HRegion region, final HTableDescriptor htd,<a name="line.132"></a>
+<span class="sourceLineNo">133</span>        final long numIterations, final boolean noSync, final int syncInterval,<a name="line.133"></a>
+<span class="sourceLineNo">134</span>        final double traceFreq) {<a name="line.134"></a>
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+<span class="sourceLineNo">136</span>      this.noSync = noSync;<a name="line.136"></a>
+<span class="sourceLineNo">137</span>      this.syncInterval = syncInterval;<a name="line.137"></a>
+<span class="sourceLineNo">138</span>      this.numFamilies = htd.getColumnFamilies().length;<a name="line.138"></a>
+<span class="sourceLineNo">139</span>      this.region = region;<a name="line.139"></a>
+<span class="sourceLineNo">140</span>      this.htd = htd;<a name="line.140"></a>
+<span class="sourceLineNo">141</span>      String spanReceivers = getConf().get("hbase.trace.spanreceiver.classes");<a name="line.141"></a>
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+<span class="sourceLineNo">143</span>        loopSampler = Sampler.NEVER;<a name="line.143"></a>
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+<span class="sourceLineNo">145</span>        if (traceFreq &lt;= 0.0) {<a name="line.145"></a>
+<span class="sourceLineNo">146</span>          LOG.warn("Tracing enabled but traceFreq=0.");<a name="line.146"></a>
+<span class="sourceLineNo">147</span>          loopSampler = Sampler.NEVER;<a name="line.147"></a>
+<span class="sourceLineNo">148</span>        } else if (traceFreq &gt;= 1.0) {<a name="line.148"></a>
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+<span class="sourceLineNo">150</span>          if (numIterations &gt; 1000) {<a name="line.150"></a>
+<span class="sourceLineNo">151</span>            LOG.warn("Full tracing of all iterations will produce a lot of data. Be sure your"<a name="line.151"></a>
+<span class="sourceLineNo">152</span>              + " SpanReciever can keep up.");<a name="line.152"></a>
+<span class="sourceLineNo">153</span>          }<a name="line.153"></a>
+<span class="sourceLineNo">154</span>        } else {<a name="line.154"></a>
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+<span class="sourceLineNo">156</span>          loopSampler = new ProbabilitySampler(new HBaseHTraceConfiguration(getConf()));<a name="line.156"></a>
+<span class="sourceLineNo">157</span>        }<a name="line.157"></a>
+<span class="sourceLineNo">158</span>      }<a name="line.158"></a>
+<span class="sourceLineNo">159</span>    }<a name="line.159"></a>
+<span class="sourceLineNo">160</span><a name="line.160"></a>
+<span class="sourceLineNo">161</span>    @Override<a name="line.161"></a>
+<span class="sourceLineNo">162</span>    public void run() {<a name="line.162"></a>
+<span class="sourceLineNo">163</span>      byte[] key = new byte[keySize];<a name="line.163"></a>
+<span class="sourceLineNo">164</span>      byte[] value = new byte[valueSize];<a name="line.164"></a>
+<span class="sourceLineNo">165</span>      Random rand = new Random(Thread.currentThread().getId());<a name="line.165"></a>
+<span class="sourceLineNo">166</span>      WAL wal = region.getWAL();<a name="line.166"></a>
+<span class="sourceLineNo">167</span><a name="line.167"></a>
+<span class="sourceLineNo">168</span>      TraceScope threadScope =<a name="line.168"></a>
+<span class="sourceLineNo">169</span>        Trace.startSpan("WALPerfEval." + Thread.currentThread().getName());<a name="line.169"></a>
+<span class="sourceLineNo">170</span>      try {<a name="line.170"></a>
+<span class="sourceLineNo">171</span>        long startTime = System.currentTimeMillis();<a name="line.171"></a>
+<span class="sourceLineNo">172</span>        int lastSync = 0;<a name="line.172"></a>
+<span class="sourceLineNo">173</span>        for (int i = 0; i &lt; numIterations; ++i) {<a name="line.173"></a>
+<span class="sourceLineNo">174</span>          assert Trace.currentSpan() == threadScope.getSpan() : "Span leak detected.";<a name="line.174"></a>
+<span class="sourceLineNo">175</span>          TraceScope loopScope = Trace.startSpan("runLoopIter" + i, loopSampler);<a name="line.175"></a>
+<span class="sourceLineNo">176</span>          try {<a name="line.176"></a>
+<span class="sourceLineNo">177</span>            long now = System.nanoTime();<a name="line.177"></a>
+<span class="sourceLineNo">178</span>            Put put = setupPut(rand, key, value, numFamilies);<a name="line.178"></a>
+<span class="sourceLineNo">179</span>            WALEdit walEdit = new WALEdit();<a name="line.179"></a>
+<span class="sourceLineNo">180</span>            addFamilyMapToWALEdit(put.getFamilyCellMap(), walEdit);<a name="line.180"></a>
+<span class="sourceLineNo">181</span>            HRegionInfo hri = region.getRegionInfo();<a name="line.181"></a>
+<span class="sourceLineNo">182</span>            final WALKey logkey =<a name="line.182"></a>
+<span class="sourceLineNo">183</span>                new WALKey(hri.getEncodedNameAsBytes(), hri.getTable(), now, mvcc);<a name="line.183"></a>
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+<span class="sourceLineNo">185</span>            if (!this.noSync) {<a name="line.185"></a>
+<span class="sourceLineNo">186</span>              if (++lastSync &gt;= this.syncInterval) {<a name="line.186"></a>
+<span class="sourceLineNo">187</span>                wal.sync();<a name="line.187"></a>
+<span class="sourceLineNo">188</span>                lastSync = 0;<a name="line.188"></a>
+<span class="sourceLineNo">189</span>              }<a name="line.189"></a>
+<span class="sourceLineNo">190</span>            }<a name="line.190"></a>
+<span class="sourceLineNo">191</span>            latencyHistogram.update(System.nanoTime() - now);<a name="line.191"></a>
+<span class="sourceLineNo">192</span>          } finally {<a name="line.192"></a>
+<span class="sourceLineNo">193</span>            loopScope.close();<a name="line.193"></a>
+<span class="sourceLineNo">194</span>          }<a name="line.194"></a>
+<span class="sourceLineNo">195</span>        }<a name="line.195"></a>
+<span class="sourceLineNo">196</span>        long totalTime = (System.currentTimeMillis() - startTime);<a name="line.196"></a>
+<span class="sourceLineNo">197</span>        logBenchmarkResult(Thread.currentThread().getName(), numIterations, totalTime);<a name="line.197"></a>
+<span class="sourceLineNo">198</span>      } catch (Exception e) {<a name="line.198"></a>
+<span class="sourceLineNo">199</span>        LOG.error(getClass().getSimpleName() + " Thread failed", e);<a name="line.199"></a>
+<span class="sourceLineNo">200</span>      } finally {<a name="line.200"></a>
+<span class="sourceLineNo">201</span>        threadScope.close();<a name="line.201"></a>
+<span class="sourceLineNo">202</span>      }<a name="line.202"></a>
+<span class="sourceLineNo">203</span>    }<a name="line.203"></a>
+<span class="sourceLineNo">204</span>  }<a name="line.204"></a>
+<span class="sourceLineNo">205</span><a name="line.205"></a>
+<span class="sourceLineNo">206</span>  @Override<a name="line.206"></a>
+<span class="sourceLineNo">207</span>  public int run(String[] args) throws Exception {<a name="line.207"></a>
+<span class="sourceLineNo">208</span>    Path rootRegionDir = null;<a name="line.208"></a>
+<span class="sourceLineNo">209</span>    int numThreads = 1;<a name="line.209"></a>
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-<span class="sourceLineNo">426</span>                + ", current seqid = " + seqid);<a name="line.426"></a>
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-<span class="sourceLineNo">429</span>        // update the sequence Id.<a name="line.429"></a>
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-<span class="sourceLineNo">502</span>            // We used to do explicit call to rollWriter but changed it to a request<a name="line.502"></a>
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-<span class="sourceLineNo">560</span>      }<a name="line.560"></a>
-<span class="sourceLineNo">561</span>    }<a name="line.561"></a>
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-<span class="sourceLineNo">568</span>      threads[i] = new Thread(runnable[i%runnable.length], "t" + i + ",r" + (i%runnable.length));<a name="line.568"></a>
-<span class="sourceLineNo">569</span>      threads[i].start();<a name="line.569"></a>
-<span class="sourceLineNo">570</span>    }<a name="line.570"></a>
-<span class="sourceLineNo">571</span>    for (Thread t : threads) t.join();<a name="line.571"></a>
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-<span class="sourceLineNo">573</span>    return(endTime - startTime);<a name="line.573"></a>
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-<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>   * The guts of the {@link #main} method.<a name="line.577"></a>
-<span class="sourceLineNo">578</span>   * Call this method to avoid the {@link #main(String[])} System.exit.<a name="line.578"></a>
-<span class="sourceLineNo">579</span>   * @param args<a name="line.579"></a>
-<span class="sourceLineNo">580</span>   * @return errCode<a name="line.580"></a>
-<span class="sourceLineNo">581</span>   * @throws Exception<a name="line.581"></a>
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-<span class="sourceLineNo">586</span><a name="line.586"></a>
-<span class="sourceLineNo">587</span>  public static void main(String[] args) throws Exception {<a name="line.587"></a>
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+<span class="sourceLineNo">375</span>        if (null != roller) {<a name="line.375"></a>
+<span class="sourceLineNo">376</span>          LOG.info("shutting down log roller.");<a name="line.376"></a>
+<span class="sourceLineNo">377</span>          Threads.shutdown(roller.getThread());<a name="line.377"></a>
+<span class="sourceLineNo">378</span>        }<a name="line.378"></a>
+<span class="sourceLineNo">379</span>        wals.shutdown();<a name="line.379"></a>
+<span class="sourceLineNo">380</span>        // Remove the root dir for this test region<a name="line.380"></a>
+<span class="sourceLineNo">381</span>        if (cleanup) cleanRegionRootDir(fs, rootRegionDir);<a name="line.381"></a>
+<span class="sourceLineNo">382</span>      }<a name="line.382"></a>
+<span class="sourceLineNo">383</span>    } finally {<a name="line.383"></a>
+<span class="sourceLineNo">384</span>      // We may be called inside a test that wants to keep on using the fs.<a name="line.384"></a>
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+<span class="sourceLineNo">386</span>      scope.close();<a name="line.386"></a>
+<span class="sourceLineNo">387</span>      if (receiverHost != null) receiverHost.closeReceivers();<a name="line.387"></a>
+<span class="sourceLineNo">388</span>    }<a name="line.388"></a>
+<span class="sourceLineNo">389</span><a name="line.389"></a>
+<span class="sourceLineNo">390</span>    return(0);<a name="line.390"></a>
+<span class="sourceLineNo">391</span>  }<a name="line.391"></a>
+<span class="sourceLineNo">392</span><a name="line.392"></a>
+<span class="sourceLineNo">393</span>  private static HTableDescriptor createHTableDescriptor(final int regionNum,<a name="line.393"></a>
+<span class="sourceLineNo">394</span>      final int numFamilies) {<a name="line.394"></a>
+<span class="sourceLineNo">395</span>    HTableDescriptor htd = new HTableDescriptor(TableName.valueOf(TABLE_NAME + ":" + regionNum));<a name="line.395"></a>
+<span class="sourceLineNo">396</span>    for (int i = 0; i &lt; numFamilies; ++i) {<a name="line.396"></a>
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+<span class="sourceLineNo">398</span>      htd.addFamily(colDef);<a name="line.398"></a>
+<span class="sourceLineNo">399</span>    }<a name="line.399"></a>
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+<span class="sourceLineNo">401</span>  }<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">404</span>   * Verify the content of the WAL file.<a name="line.404"></a>
+<span class="sourceLineNo">405</span>   * Verify that the file has expected number of edits.<a name="line.405"></a>
+<span class="sourceLineNo">406</span>   * @param wals may not be null<a name="line.406"></a>
+<span class="sourceLineNo">407</span>   * @param wal<a name="line.407"></a>
+<span class="sourceLineNo">408</span>   * @return Count of edits.<a name="line.408"></a>
+<span class="sourceLineNo">409</span>   * @throws IOException<a name="line.409"></a>
+<span class="sourceLineNo">410</span>   */<a name="line.410"></a>
+<span class="sourceLineNo">411</span>  private long verify(final WALFactory wals, final Path wal, final boolean verbose)<a name="line.411"></a>
+<span class="sourceLineNo">412</span>      throws IOException {<a name="lin

<TRUNCATED>

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