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Posted to commits@hbase.apache.org by mi...@apache.org on 2015/12/14 17:38:38 UTC

[27/45] hbase-site git commit: Published site at 04622254f7209c5cfeadcfa137a97fbed161075a.

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/736088b3/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/HBaseInterClusterReplicationEndpoint.Replicator.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/HBaseInterClusterReplicationEndpoint.Replicator.html b/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/HBaseInterClusterReplicationEndpoint.Replicator.html
index 5e04712..e6f7370 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/HBaseInterClusterReplicationEndpoint.Replicator.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/HBaseInterClusterReplicationEndpoint.Replicator.html
@@ -37,7 +37,7 @@
 <span class="sourceLineNo">029</span>import java.util.concurrent.ExecutionException;<a name="line.29"></a>
 <span class="sourceLineNo">030</span>import java.util.concurrent.ExecutorCompletionService;<a name="line.30"></a>
 <span class="sourceLineNo">031</span>import java.util.concurrent.Future;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import java.util.concurrent.SynchronousQueue;<a name="line.32"></a>
+<span class="sourceLineNo">032</span>import java.util.concurrent.LinkedBlockingQueue;<a name="line.32"></a>
 <span class="sourceLineNo">033</span>import java.util.concurrent.ThreadPoolExecutor;<a name="line.33"></a>
 <span class="sourceLineNo">034</span>import java.util.concurrent.TimeUnit;<a name="line.34"></a>
 <span class="sourceLineNo">035</span><a name="line.35"></a>
@@ -121,243 +121,244 @@
 <span class="sourceLineNo">113</span>    // per sink thread pool<a name="line.113"></a>
 <span class="sourceLineNo">114</span>    this.maxThreads = this.conf.getInt(HConstants.REPLICATION_SOURCE_MAXTHREADS_KEY,<a name="line.114"></a>
 <span class="sourceLineNo">115</span>      HConstants.REPLICATION_SOURCE_MAXTHREADS_DEFAULT);<a name="line.115"></a>
-<span class="sourceLineNo">116</span>    this.exec = new ThreadPoolExecutor(1, maxThreads, 60, TimeUnit.SECONDS,<a name="line.116"></a>
-<span class="sourceLineNo">117</span>        new SynchronousQueue&lt;Runnable&gt;());<a name="line.117"></a>
-<span class="sourceLineNo">118</span><a name="line.118"></a>
-<span class="sourceLineNo">119</span>    this.replicationBulkLoadDataEnabled =<a name="line.119"></a>
-<span class="sourceLineNo">120</span>        conf.getBoolean(HConstants.REPLICATION_BULKLOAD_ENABLE_KEY,<a name="line.120"></a>
-<span class="sourceLineNo">121</span>          HConstants.REPLICATION_BULKLOAD_ENABLE_DEFAULT);<a name="line.121"></a>
-<span class="sourceLineNo">122</span>    if (this.replicationBulkLoadDataEnabled) {<a name="line.122"></a>
-<span class="sourceLineNo">123</span>      replicationClusterId = this.conf.get(HConstants.REPLICATION_CLUSTER_ID);<a name="line.123"></a>
-<span class="sourceLineNo">124</span>    }<a name="line.124"></a>
-<span class="sourceLineNo">125</span>    // Construct base namespace directory and hfile archive directory path<a name="line.125"></a>
-<span class="sourceLineNo">126</span>    Path rootDir = FSUtils.getRootDir(conf);<a name="line.126"></a>
-<span class="sourceLineNo">127</span>    Path baseNSDir = new Path(HConstants.BASE_NAMESPACE_DIR);<a name="line.127"></a>
-<span class="sourceLineNo">128</span>    baseNamespaceDir = new Path(rootDir, baseNSDir);<a name="line.128"></a>
-<span class="sourceLineNo">129</span>    hfileArchiveDir = new Path(rootDir, new Path(HConstants.HFILE_ARCHIVE_DIRECTORY, baseNSDir));<a name="line.129"></a>
-<span class="sourceLineNo">130</span>  }<a name="line.130"></a>
-<span class="sourceLineNo">131</span><a name="line.131"></a>
-<span class="sourceLineNo">132</span>  private void decorateConf() {<a name="line.132"></a>
-<span class="sourceLineNo">133</span>    String replicationCodec = this.conf.get(HConstants.REPLICATION_CODEC_CONF_KEY);<a name="line.133"></a>
-<span class="sourceLineNo">134</span>    if (StringUtils.isNotEmpty(replicationCodec)) {<a name="line.134"></a>
-<span class="sourceLineNo">135</span>      this.conf.set(HConstants.RPC_CODEC_CONF_KEY, replicationCodec);<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><a name="line.138"></a>
-<span class="sourceLineNo">139</span>  private void connectToPeers() {<a name="line.139"></a>
-<span class="sourceLineNo">140</span>    getRegionServers();<a name="line.140"></a>
-<span class="sourceLineNo">141</span><a name="line.141"></a>
-<span class="sourceLineNo">142</span>    int sleepMultiplier = 1;<a name="line.142"></a>
-<span class="sourceLineNo">143</span><a name="line.143"></a>
-<span class="sourceLineNo">144</span>    // Connect to peer cluster first, unless we have to stop<a name="line.144"></a>
-<span class="sourceLineNo">145</span>    while (this.isRunning() &amp;&amp; replicationSinkMgr.getSinks().size() == 0) {<a name="line.145"></a>
-<span class="sourceLineNo">146</span>      replicationSinkMgr.chooseSinks();<a name="line.146"></a>
-<span class="sourceLineNo">147</span>      if (this.isRunning() &amp;&amp; replicationSinkMgr.getSinks().size() == 0) {<a name="line.147"></a>
-<span class="sourceLineNo">148</span>        if (sleepForRetries("Waiting for peers", sleepMultiplier)) {<a name="line.148"></a>
-<span class="sourceLineNo">149</span>          sleepMultiplier++;<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>
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-<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>  /**<a name="line.155"></a>
-<span class="sourceLineNo">156</span>   * Do the sleeping logic<a name="line.156"></a>
-<span class="sourceLineNo">157</span>   * @param msg Why we sleep<a name="line.157"></a>
-<span class="sourceLineNo">158</span>   * @param sleepMultiplier by how many times the default sleeping time is augmented<a name="line.158"></a>
-<span class="sourceLineNo">159</span>   * @return True if &lt;code&gt;sleepMultiplier&lt;/code&gt; is &amp;lt; &lt;code&gt;maxRetriesMultiplier&lt;/code&gt;<a name="line.159"></a>
-<span class="sourceLineNo">160</span>   */<a name="line.160"></a>
-<span class="sourceLineNo">161</span>  protected boolean sleepForRetries(String msg, int sleepMultiplier) {<a name="line.161"></a>
-<span class="sourceLineNo">162</span>    try {<a name="line.162"></a>
-<span class="sourceLineNo">163</span>      if (LOG.isTraceEnabled()) {<a name="line.163"></a>
-<span class="sourceLineNo">164</span>        LOG.trace(msg + ", sleeping " + sleepForRetries + " times " + sleepMultiplier);<a name="line.164"></a>
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-<span class="sourceLineNo">166</span>      Thread.sleep(this.sleepForRetries * sleepMultiplier);<a name="line.166"></a>
-<span class="sourceLineNo">167</span>    } catch (InterruptedException e) {<a name="line.167"></a>
-<span class="sourceLineNo">168</span>      LOG.debug("Interrupted while sleeping between retries");<a name="line.168"></a>
-<span class="sourceLineNo">169</span>    }<a name="line.169"></a>
-<span class="sourceLineNo">170</span>    return sleepMultiplier &lt; maxRetriesMultiplier;<a name="line.170"></a>
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-<span class="sourceLineNo">172</span><a name="line.172"></a>
-<span class="sourceLineNo">173</span>  /**<a name="line.173"></a>
-<span class="sourceLineNo">174</span>   * Do the shipping logic<a name="line.174"></a>
-<span class="sourceLineNo">175</span>   */<a name="line.175"></a>
-<span class="sourceLineNo">176</span>  @Override<a name="line.176"></a>
-<span class="sourceLineNo">177</span>  public boolean replicate(ReplicateContext replicateContext) {<a name="line.177"></a>
-<span class="sourceLineNo">178</span>    CompletionService&lt;Integer&gt; pool = new ExecutorCompletionService&lt;Integer&gt;(this.exec);<a name="line.178"></a>
-<span class="sourceLineNo">179</span>    List&lt;Entry&gt; entries = replicateContext.getEntries();<a name="line.179"></a>
-<span class="sourceLineNo">180</span>    String walGroupId = replicateContext.getWalGroupId();<a name="line.180"></a>
-<span class="sourceLineNo">181</span>    int sleepMultiplier = 1;<a name="line.181"></a>
-<span class="sourceLineNo">182</span><a name="line.182"></a>
-<span class="sourceLineNo">183</span>    if (!peersSelected &amp;&amp; this.isRunning()) {<a name="line.183"></a>
-<span class="sourceLineNo">184</span>      connectToPeers();<a name="line.184"></a>
-<span class="sourceLineNo">185</span>      peersSelected = true;<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>    if (replicationSinkMgr.getSinks().size() == 0) {<a name="line.188"></a>
-<span class="sourceLineNo">189</span>      return false;<a name="line.189"></a>
-<span class="sourceLineNo">190</span>    }<a name="line.190"></a>
-<span class="sourceLineNo">191</span>    // minimum of: configured threads, number of 100-waledit batches,<a name="line.191"></a>
-<span class="sourceLineNo">192</span>    //  and number of current sinks<a name="line.192"></a>
-<span class="sourceLineNo">193</span>    int n = Math.min(Math.min(this.maxThreads, entries.size()/100+1),<a name="line.193"></a>
-<span class="sourceLineNo">194</span>      replicationSinkMgr.getSinks().size());<a name="line.194"></a>
-<span class="sourceLineNo">195</span>    List&lt;List&lt;Entry&gt;&gt; entryLists = new ArrayList&lt;List&lt;Entry&gt;&gt;(n);<a name="line.195"></a>
-<span class="sourceLineNo">196</span>    if (n == 1) {<a name="line.196"></a>
-<span class="sourceLineNo">197</span>      entryLists.add(entries);<a name="line.197"></a>
-<span class="sourceLineNo">198</span>    } else {<a name="line.198"></a>
-<span class="sourceLineNo">199</span>      for (int i=0; i&lt;n; i++) {<a name="line.199"></a>
-<span class="sourceLineNo">200</span>        entryLists.add(new ArrayList&lt;Entry&gt;(entries.size()/n+1));<a name="line.200"></a>
-<span class="sourceLineNo">201</span>      }<a name="line.201"></a>
-<span class="sourceLineNo">202</span>      // now group by region<a name="line.202"></a>
-<span class="sourceLineNo">203</span>      for (Entry e : entries) {<a name="line.203"></a>
-<span class="sourceLineNo">204</span>        entryLists.get(Math.abs(Bytes.hashCode(e.getKey().getEncodedRegionName())%n)).add(e);<a name="line.204"></a>
-<span class="sourceLineNo">205</span>      }<a name="line.205"></a>
-<span class="sourceLineNo">206</span>    }<a name="line.206"></a>
-<span class="sourceLineNo">207</span>    while (this.isRunning()) {<a name="line.207"></a>
-<span class="sourceLineNo">208</span>      if (!isPeerEnabled()) {<a name="line.208"></a>
-<span class="sourceLineNo">209</span>        if (sleepForRetries("Replication is disabled", sleepMultiplier)) {<a name="line.209"></a>
-<span class="sourceLineNo">210</span>          sleepMultiplier++;<a name="line.210"></a>
-<span class="sourceLineNo">211</span>        }<a name="line.211"></a>
-<span class="sourceLineNo">212</span>        continue;<a name="line.212"></a>
-<span class="sourceLineNo">213</span>      }<a name="line.213"></a>
-<span class="sourceLineNo">214</span>      try {<a name="line.214"></a>
-<span class="sourceLineNo">215</span>        if (LOG.isTraceEnabled()) {<a name="line.215"></a>
-<span class="sourceLineNo">216</span>          LOG.trace("Replicating " + entries.size() +<a name="line.216"></a>
-<span class="sourceLineNo">217</span>              " entries of total size " + replicateContext.getSize());<a name="line.217"></a>
-<span class="sourceLineNo">218</span>        }<a name="line.218"></a>
-<span class="sourceLineNo">219</span><a name="line.219"></a>
-<span class="sourceLineNo">220</span>        int futures = 0;<a name="line.220"></a>
-<span class="sourceLineNo">221</span>        for (int i=0; i&lt;entryLists.size(); i++) {<a name="line.221"></a>
-<span class="sourceLineNo">222</span>          if (!entryLists.get(i).isEmpty()) {<a name="line.222"></a>
-<span class="sourceLineNo">223</span>            if (LOG.isTraceEnabled()) {<a name="line.223"></a>
-<span class="sourceLineNo">224</span>              LOG.trace("Submitting " + entryLists.get(i).size() +<a name="line.224"></a>
-<span class="sourceLineNo">225</span>                  " entries of total size " + replicateContext.getSize());<a name="line.225"></a>
-<span class="sourceLineNo">226</span>            }<a name="line.226"></a>
-<span class="sourceLineNo">227</span>            // RuntimeExceptions encountered here bubble up and are handled in ReplicationSource<a name="line.227"></a>
-<span class="sourceLineNo">228</span>            pool.submit(createReplicator(entryLists.get(i), i));<a name="line.228"></a>
-<span class="sourceLineNo">229</span>            futures++;<a name="line.229"></a>
-<span class="sourceLineNo">230</span>          }<a name="line.230"></a>
-<span class="sourceLineNo">231</span>        }<a name="line.231"></a>
-<span class="sourceLineNo">232</span>        IOException iox = null;<a name="line.232"></a>
-<span class="sourceLineNo">233</span><a name="line.233"></a>
-<span class="sourceLineNo">234</span>        for (int i=0; i&lt;futures; i++) {<a name="line.234"></a>
-<span class="sourceLineNo">235</span>          try {<a name="line.235"></a>
-<span class="sourceLineNo">236</span>            // wait for all futures, remove successful parts<a name="line.236"></a>
-<span class="sourceLineNo">237</span>            // (only the remaining parts will be retried)<a name="line.237"></a>
-<span class="sourceLineNo">238</span>            Future&lt;Integer&gt; f = pool.take();<a name="line.238"></a>
-<span class="sourceLineNo">239</span>            entryLists.set(f.get().intValue(), Collections.&lt;Entry&gt;emptyList());<a name="line.239"></a>
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-<span class="sourceLineNo">243</span>            // cause must be an IOException<a name="line.243"></a>
-<span class="sourceLineNo">244</span>            iox = (IOException)ee.getCause();<a name="line.244"></a>
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-<span class="sourceLineNo">251</span>        // update metrics<a name="line.251"></a>
-<span class="sourceLineNo">252</span>        this.metrics.setAgeOfLastShippedOp(entries.get(entries.size() - 1).getKey().getWriteTime(),<a name="line.252"></a>
-<span class="sourceLineNo">253</span>          walGroupId);<a name="line.253"></a>
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-<span class="sourceLineNo">329</span>      this.ordinal = ordinal;<a name="line.329"></a>
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