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Posted to commits@hbase.apache.org by di...@apache.org on 2016/09/29 20:09:57 UTC
[27/52] [partial] hbase-site git commit: Published site at
63808a224c8689d07e55f90efd25f9597b0d04dd.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/044b3379/apidocs/src-html/org/apache/hadoop/hbase/client/HTableMultiplexer.html
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diff --git a/apidocs/src-html/org/apache/hadoop/hbase/client/HTableMultiplexer.html b/apidocs/src-html/org/apache/hadoop/hbase/client/HTableMultiplexer.html
index d607296..e22025b 100644
--- a/apidocs/src-html/org/apache/hadoop/hbase/client/HTableMultiplexer.html
+++ b/apidocs/src-html/org/apache/hadoop/hbase/client/HTableMultiplexer.html
@@ -57,616 +57,615 @@
<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.TableName;<a name="line.49"></a>
<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.50"></a>
<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.client.AsyncProcess.AsyncRequestFuture;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.ipc.RpcControllerFactory;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.54"></a>
-<span class="sourceLineNo">055</span><a name="line.55"></a>
-<span class="sourceLineNo">056</span>/**<a name="line.56"></a>
-<span class="sourceLineNo">057</span> * HTableMultiplexer provides a thread-safe non blocking PUT API across all the tables.<a name="line.57"></a>
-<span class="sourceLineNo">058</span> * Each put will be sharded into different buffer queues based on its destination region server.<a name="line.58"></a>
-<span class="sourceLineNo">059</span> * So each region server buffer queue will only have the puts which share the same destination.<a name="line.59"></a>
-<span class="sourceLineNo">060</span> * And each queue will have a flush worker thread to flush the puts request to the region server.<a name="line.60"></a>
-<span class="sourceLineNo">061</span> * If any queue is full, the HTableMultiplexer starts to drop the Put requests for that<a name="line.61"></a>
-<span class="sourceLineNo">062</span> * particular queue.<a name="line.62"></a>
-<span class="sourceLineNo">063</span> *<a name="line.63"></a>
-<span class="sourceLineNo">064</span> * Also all the puts will be retried as a configuration number before dropping.<a name="line.64"></a>
-<span class="sourceLineNo">065</span> * And the HTableMultiplexer can report the number of buffered requests and the number of the<a name="line.65"></a>
-<span class="sourceLineNo">066</span> * failed (dropped) requests in total or on per region server basis.<a name="line.66"></a>
-<span class="sourceLineNo">067</span> *<a name="line.67"></a>
-<span class="sourceLineNo">068</span> * This class is thread safe.<a name="line.68"></a>
-<span class="sourceLineNo">069</span> */<a name="line.69"></a>
-<span class="sourceLineNo">070</span>@InterfaceAudience.Public<a name="line.70"></a>
-<span class="sourceLineNo">071</span>@InterfaceStability.Evolving<a name="line.71"></a>
-<span class="sourceLineNo">072</span>public class HTableMultiplexer {<a name="line.72"></a>
-<span class="sourceLineNo">073</span> private static final Log LOG = LogFactory.getLog(HTableMultiplexer.class.getName());<a name="line.73"></a>
-<span class="sourceLineNo">074</span><a name="line.74"></a>
-<span class="sourceLineNo">075</span> public static final String TABLE_MULTIPLEXER_FLUSH_PERIOD_MS =<a name="line.75"></a>
-<span class="sourceLineNo">076</span> "hbase.tablemultiplexer.flush.period.ms";<a name="line.76"></a>
-<span class="sourceLineNo">077</span> public static final String TABLE_MULTIPLEXER_INIT_THREADS = "hbase.tablemultiplexer.init.threads";<a name="line.77"></a>
-<span class="sourceLineNo">078</span> public static final String TABLE_MULTIPLEXER_MAX_RETRIES_IN_QUEUE =<a name="line.78"></a>
-<span class="sourceLineNo">079</span> "hbase.client.max.retries.in.queue";<a name="line.79"></a>
-<span class="sourceLineNo">080</span><a name="line.80"></a>
-<span class="sourceLineNo">081</span> /** The map between each region server to its flush worker */<a name="line.81"></a>
-<span class="sourceLineNo">082</span> private final Map<HRegionLocation, FlushWorker> serverToFlushWorkerMap =<a name="line.82"></a>
-<span class="sourceLineNo">083</span> new ConcurrentHashMap<>();<a name="line.83"></a>
-<span class="sourceLineNo">084</span><a name="line.84"></a>
-<span class="sourceLineNo">085</span> private final Configuration workerConf;<a name="line.85"></a>
-<span class="sourceLineNo">086</span> private final ClusterConnection conn;<a name="line.86"></a>
-<span class="sourceLineNo">087</span> private final ExecutorService pool;<a name="line.87"></a>
-<span class="sourceLineNo">088</span> private final int maxAttempts;<a name="line.88"></a>
-<span class="sourceLineNo">089</span> private final int perRegionServerBufferQueueSize;<a name="line.89"></a>
-<span class="sourceLineNo">090</span> private final int maxKeyValueSize;<a name="line.90"></a>
-<span class="sourceLineNo">091</span> private final ScheduledExecutorService executor;<a name="line.91"></a>
-<span class="sourceLineNo">092</span> private final long flushPeriod;<a name="line.92"></a>
-<span class="sourceLineNo">093</span><a name="line.93"></a>
-<span class="sourceLineNo">094</span> /**<a name="line.94"></a>
-<span class="sourceLineNo">095</span> * @param conf The HBaseConfiguration<a name="line.95"></a>
-<span class="sourceLineNo">096</span> * @param perRegionServerBufferQueueSize determines the max number of the buffered Put ops for<a name="line.96"></a>
-<span class="sourceLineNo">097</span> * each region server before dropping the request.<a name="line.97"></a>
-<span class="sourceLineNo">098</span> */<a name="line.98"></a>
-<span class="sourceLineNo">099</span> public HTableMultiplexer(Configuration conf, int perRegionServerBufferQueueSize)<a name="line.99"></a>
-<span class="sourceLineNo">100</span> throws IOException {<a name="line.100"></a>
-<span class="sourceLineNo">101</span> this(ConnectionFactory.createConnection(conf), conf, perRegionServerBufferQueueSize);<a name="line.101"></a>
-<span class="sourceLineNo">102</span> }<a name="line.102"></a>
-<span class="sourceLineNo">103</span><a name="line.103"></a>
-<span class="sourceLineNo">104</span> /**<a name="line.104"></a>
-<span class="sourceLineNo">105</span> * @param conn The HBase connection.<a name="line.105"></a>
-<span class="sourceLineNo">106</span> * @param conf The HBase configuration<a name="line.106"></a>
-<span class="sourceLineNo">107</span> * @param perRegionServerBufferQueueSize determines the max number of the buffered Put ops for<a name="line.107"></a>
-<span class="sourceLineNo">108</span> * each region server before dropping the request.<a name="line.108"></a>
-<span class="sourceLineNo">109</span> */<a name="line.109"></a>
-<span class="sourceLineNo">110</span> public HTableMultiplexer(Connection conn, Configuration conf,<a name="line.110"></a>
-<span class="sourceLineNo">111</span> int perRegionServerBufferQueueSize) {<a name="line.111"></a>
-<span class="sourceLineNo">112</span> this.conn = (ClusterConnection) conn;<a name="line.112"></a>
-<span class="sourceLineNo">113</span> this.pool = HTable.getDefaultExecutor(conf);<a name="line.113"></a>
-<span class="sourceLineNo">114</span> // how many times we could try in total, one more than retry number<a name="line.114"></a>
-<span class="sourceLineNo">115</span> this.maxAttempts = conf.getInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER,<a name="line.115"></a>
-<span class="sourceLineNo">116</span> HConstants.DEFAULT_HBASE_CLIENT_RETRIES_NUMBER) + 1;<a name="line.116"></a>
-<span class="sourceLineNo">117</span> this.perRegionServerBufferQueueSize = perRegionServerBufferQueueSize;<a name="line.117"></a>
-<span class="sourceLineNo">118</span> this.maxKeyValueSize = HTable.getMaxKeyValueSize(conf);<a name="line.118"></a>
-<span class="sourceLineNo">119</span> this.flushPeriod = conf.getLong(TABLE_MULTIPLEXER_FLUSH_PERIOD_MS, 100);<a name="line.119"></a>
-<span class="sourceLineNo">120</span> int initThreads = conf.getInt(TABLE_MULTIPLEXER_INIT_THREADS, 10);<a name="line.120"></a>
-<span class="sourceLineNo">121</span> this.executor =<a name="line.121"></a>
-<span class="sourceLineNo">122</span> Executors.newScheduledThreadPool(initThreads,<a name="line.122"></a>
-<span class="sourceLineNo">123</span> new ThreadFactoryBuilder().setDaemon(true).setNameFormat("HTableFlushWorker-%d").build());<a name="line.123"></a>
-<span class="sourceLineNo">124</span><a name="line.124"></a>
-<span class="sourceLineNo">125</span> this.workerConf = HBaseConfiguration.create(conf);<a name="line.125"></a>
-<span class="sourceLineNo">126</span> // We do not do the retry because we need to reassign puts to different queues if regions are<a name="line.126"></a>
-<span class="sourceLineNo">127</span> // moved.<a name="line.127"></a>
-<span class="sourceLineNo">128</span> this.workerConf.setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, 0);<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> /**<a name="line.131"></a>
-<span class="sourceLineNo">132</span> * Closes the internal {@link Connection}. Does nothing if the {@link Connection} has already<a name="line.132"></a>
-<span class="sourceLineNo">133</span> * been closed.<a name="line.133"></a>
-<span class="sourceLineNo">134</span> * @throws IOException If there is an error closing the connection.<a name="line.134"></a>
-<span class="sourceLineNo">135</span> */<a name="line.135"></a>
-<span class="sourceLineNo">136</span> @SuppressWarnings("deprecation")<a name="line.136"></a>
-<span class="sourceLineNo">137</span> public synchronized void close() throws IOException {<a name="line.137"></a>
-<span class="sourceLineNo">138</span> if (!getConnection().isClosed()) {<a name="line.138"></a>
-<span class="sourceLineNo">139</span> getConnection().close();<a name="line.139"></a>
-<span class="sourceLineNo">140</span> }<a name="line.140"></a>
-<span class="sourceLineNo">141</span> }<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> * The put request will be buffered by its corresponding buffer queue. Return false if the queue<a name="line.144"></a>
-<span class="sourceLineNo">145</span> * is already full.<a name="line.145"></a>
-<span class="sourceLineNo">146</span> * @param tableName<a name="line.146"></a>
-<span class="sourceLineNo">147</span> * @param put<a name="line.147"></a>
-<span class="sourceLineNo">148</span> * @return true if the request can be accepted by its corresponding buffer queue.<a name="line.148"></a>
-<span class="sourceLineNo">149</span> */<a name="line.149"></a>
-<span class="sourceLineNo">150</span> public boolean put(TableName tableName, final Put put) {<a name="line.150"></a>
-<span class="sourceLineNo">151</span> return put(tableName, put, this.maxAttempts);<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> * The puts request will be buffered by their corresponding buffer queue.<a name="line.155"></a>
-<span class="sourceLineNo">156</span> * Return the list of puts which could not be queued.<a name="line.156"></a>
-<span class="sourceLineNo">157</span> * @param tableName<a name="line.157"></a>
-<span class="sourceLineNo">158</span> * @param puts<a name="line.158"></a>
-<span class="sourceLineNo">159</span> * @return the list of puts which could not be queued<a name="line.159"></a>
-<span class="sourceLineNo">160</span> */<a name="line.160"></a>
-<span class="sourceLineNo">161</span> public List<Put> put(TableName tableName, final List<Put> puts) {<a name="line.161"></a>
-<span class="sourceLineNo">162</span> if (puts == null)<a name="line.162"></a>
-<span class="sourceLineNo">163</span> return null;<a name="line.163"></a>
-<span class="sourceLineNo">164</span><a name="line.164"></a>
-<span class="sourceLineNo">165</span> List <Put> failedPuts = null;<a name="line.165"></a>
-<span class="sourceLineNo">166</span> boolean result;<a name="line.166"></a>
-<span class="sourceLineNo">167</span> for (Put put : puts) {<a name="line.167"></a>
-<span class="sourceLineNo">168</span> result = put(tableName, put, this.maxAttempts);<a name="line.168"></a>
-<span class="sourceLineNo">169</span> if (result == false) {<a name="line.169"></a>
-<span class="sourceLineNo">170</span><a name="line.170"></a>
-<span class="sourceLineNo">171</span> // Create the failed puts list if necessary<a name="line.171"></a>
-<span class="sourceLineNo">172</span> if (failedPuts == null) {<a name="line.172"></a>
-<span class="sourceLineNo">173</span> failedPuts = new ArrayList<Put>();<a name="line.173"></a>
-<span class="sourceLineNo">174</span> }<a name="line.174"></a>
-<span class="sourceLineNo">175</span> // Add the put to the failed puts list<a name="line.175"></a>
-<span class="sourceLineNo">176</span> failedPuts.add(put);<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> return failedPuts;<a name="line.179"></a>
-<span class="sourceLineNo">180</span> }<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> * @deprecated Use {@link #put(TableName, List) } instead.<a name="line.183"></a>
-<span class="sourceLineNo">184</span> */<a name="line.184"></a>
-<span class="sourceLineNo">185</span> @Deprecated<a name="line.185"></a>
-<span class="sourceLineNo">186</span> public List<Put> put(byte[] tableName, final List<Put> puts) {<a name="line.186"></a>
-<span class="sourceLineNo">187</span> return put(TableName.valueOf(tableName), puts);<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> /**<a name="line.190"></a>
-<span class="sourceLineNo">191</span> * The put request will be buffered by its corresponding buffer queue. And the put request will be<a name="line.191"></a>
-<span class="sourceLineNo">192</span> * retried before dropping the request.<a name="line.192"></a>
-<span class="sourceLineNo">193</span> * Return false if the queue is already full.<a name="line.193"></a>
-<span class="sourceLineNo">194</span> * @return true if the request can be accepted by its corresponding buffer queue.<a name="line.194"></a>
-<span class="sourceLineNo">195</span> */<a name="line.195"></a>
-<span class="sourceLineNo">196</span> public boolean put(final TableName tableName, final Put put, int maxAttempts) {<a name="line.196"></a>
-<span class="sourceLineNo">197</span> if (maxAttempts <= 0) {<a name="line.197"></a>
-<span class="sourceLineNo">198</span> return false;<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> try {<a name="line.201"></a>
-<span class="sourceLineNo">202</span> HTable.validatePut(put, maxKeyValueSize);<a name="line.202"></a>
-<span class="sourceLineNo">203</span> // Allow mocking to get at the connection, but don't expose the connection to users.<a name="line.203"></a>
-<span class="sourceLineNo">204</span> ClusterConnection conn = (ClusterConnection) getConnection();<a name="line.204"></a>
-<span class="sourceLineNo">205</span> // AsyncProcess in the FlushWorker should take care of refreshing the location cache<a name="line.205"></a>
-<span class="sourceLineNo">206</span> // as necessary. We shouldn't have to do that here.<a name="line.206"></a>
-<span class="sourceLineNo">207</span> HRegionLocation loc = conn.getRegionLocation(tableName, put.getRow(), false);<a name="line.207"></a>
-<span class="sourceLineNo">208</span> if (loc != null) {<a name="line.208"></a>
-<span class="sourceLineNo">209</span> // Add the put pair into its corresponding queue.<a name="line.209"></a>
-<span class="sourceLineNo">210</span> LinkedBlockingQueue<PutStatus> queue = getQueue(loc);<a name="line.210"></a>
-<span class="sourceLineNo">211</span><a name="line.211"></a>
-<span class="sourceLineNo">212</span> // Generate a MultiPutStatus object and offer it into the queue<a name="line.212"></a>
-<span class="sourceLineNo">213</span> PutStatus s = new PutStatus(loc.getRegionInfo(), put, maxAttempts);<a name="line.213"></a>
-<span class="sourceLineNo">214</span><a name="line.214"></a>
-<span class="sourceLineNo">215</span> return queue.offer(s);<a name="line.215"></a>
-<span class="sourceLineNo">216</span> }<a name="line.216"></a>
-<span class="sourceLineNo">217</span> } catch (IOException e) {<a name="line.217"></a>
-<span class="sourceLineNo">218</span> LOG.debug("Cannot process the put " + put, e);<a name="line.218"></a>
-<span class="sourceLineNo">219</span> }<a name="line.219"></a>
-<span class="sourceLineNo">220</span> return false;<a name="line.220"></a>
-<span class="sourceLineNo">221</span> }<a name="line.221"></a>
-<span class="sourceLineNo">222</span><a name="line.222"></a>
-<span class="sourceLineNo">223</span> /**<a name="line.223"></a>
-<span class="sourceLineNo">224</span> * @deprecated Use {@link #put(TableName, Put) } instead.<a name="line.224"></a>
-<span class="sourceLineNo">225</span> */<a name="line.225"></a>
-<span class="sourceLineNo">226</span> @Deprecated<a name="line.226"></a>
-<span class="sourceLineNo">227</span> public boolean put(final byte[] tableName, final Put put, int retry) {<a name="line.227"></a>
-<span class="sourceLineNo">228</span> return put(TableName.valueOf(tableName), put, retry);<a name="line.228"></a>
-<span class="sourceLineNo">229</span> }<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> * @deprecated Use {@link #put(TableName, Put)} instead.<a name="line.232"></a>
-<span class="sourceLineNo">233</span> */<a name="line.233"></a>
-<span class="sourceLineNo">234</span> @Deprecated<a name="line.234"></a>
-<span class="sourceLineNo">235</span> public boolean put(final byte[] tableName, Put put) {<a name="line.235"></a>
-<span class="sourceLineNo">236</span> return put(TableName.valueOf(tableName), put);<a name="line.236"></a>
-<span class="sourceLineNo">237</span> }<a name="line.237"></a>
-<span class="sourceLineNo">238</span><a name="line.238"></a>
-<span class="sourceLineNo">239</span> /**<a name="line.239"></a>
-<span class="sourceLineNo">240</span> * @return the current HTableMultiplexerStatus<a name="line.240"></a>
-<span class="sourceLineNo">241</span> */<a name="line.241"></a>
-<span class="sourceLineNo">242</span> public HTableMultiplexerStatus getHTableMultiplexerStatus() {<a name="line.242"></a>
-<span class="sourceLineNo">243</span> return new HTableMultiplexerStatus(serverToFlushWorkerMap);<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> @VisibleForTesting<a name="line.246"></a>
-<span class="sourceLineNo">247</span> LinkedBlockingQueue<PutStatus> getQueue(HRegionLocation addr) {<a name="line.247"></a>
-<span class="sourceLineNo">248</span> FlushWorker worker = serverToFlushWorkerMap.get(addr);<a name="line.248"></a>
-<span class="sourceLineNo">249</span> if (worker == null) {<a name="line.249"></a>
-<span class="sourceLineNo">250</span> synchronized (this.serverToFlushWorkerMap) {<a name="line.250"></a>
-<span class="sourceLineNo">251</span> worker = serverToFlushWorkerMap.get(addr);<a name="line.251"></a>
-<span class="sourceLineNo">252</span> if (worker == null) {<a name="line.252"></a>
-<span class="sourceLineNo">253</span> // Create the flush worker<a name="line.253"></a>
-<span class="sourceLineNo">254</span> worker = new FlushWorker(workerConf, this.conn, addr, this,<a name="line.254"></a>
-<span class="sourceLineNo">255</span> perRegionServerBufferQueueSize, pool, executor);<a name="line.255"></a>
-<span class="sourceLineNo">256</span> this.serverToFlushWorkerMap.put(addr, worker);<a name="line.256"></a>
-<span class="sourceLineNo">257</span> executor.scheduleAtFixedRate(worker, flushPeriod, flushPeriod, TimeUnit.MILLISECONDS);<a name="line.257"></a>
-<span class="sourceLineNo">258</span> }<a name="line.258"></a>
-<span class="sourceLineNo">259</span> }<a name="line.259"></a>
-<span class="sourceLineNo">260</span> }<a name="line.260"></a>
-<span class="sourceLineNo">261</span> return worker.getQueue();<a name="line.261"></a>
-<span class="sourceLineNo">262</span> }<a name="line.262"></a>
-<span class="sourceLineNo">263</span><a name="line.263"></a>
-<span class="sourceLineNo">264</span> @VisibleForTesting<a name="line.264"></a>
-<span class="sourceLineNo">265</span> ClusterConnection getConnection() {<a name="line.265"></a>
-<span class="sourceLineNo">266</span> return this.conn;<a name="line.266"></a>
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-<span class="sourceLineNo">268</span><a name="line.268"></a>
-<span class="sourceLineNo">269</span> /**<a name="line.269"></a>
-<span class="sourceLineNo">270</span> * HTableMultiplexerStatus keeps track of the current status of the HTableMultiplexer.<a name="line.270"></a>
-<span class="sourceLineNo">271</span> * report the number of buffered requests and the number of the failed (dropped) requests<a name="line.271"></a>
-<span class="sourceLineNo">272</span> * in total or on per region server basis.<a name="line.272"></a>
-<span class="sourceLineNo">273</span> */<a name="line.273"></a>
-<span class="sourceLineNo">274</span> @InterfaceAudience.Public<a name="line.274"></a>
-<span class="sourceLineNo">275</span> @InterfaceStability.Evolving<a name="line.275"></a>
-<span class="sourceLineNo">276</span> public static class HTableMultiplexerStatus {<a name="line.276"></a>
-<span class="sourceLineNo">277</span> private long totalFailedPutCounter;<a name="line.277"></a>
-<span class="sourceLineNo">278</span> private long totalBufferedPutCounter;<a name="line.278"></a>
-<span class="sourceLineNo">279</span> private long maxLatency;<a name="line.279"></a>
-<span class="sourceLineNo">280</span> private long overallAverageLatency;<a name="line.280"></a>
-<span class="sourceLineNo">281</span> private Map<String, Long> serverToFailedCounterMap;<a name="line.281"></a>
-<span class="sourceLineNo">282</span> private Map<String, Long> serverToBufferedCounterMap;<a name="line.282"></a>
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+<span class="sourceLineNo">176</span> }<a name="line.176"></a>
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+<span class="sourceLineNo">181</span> /**<a name="line.181"></a>
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+<span class="sourceLineNo">184</span> @Deprecated<a name="line.184"></a>
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+<span class="sourceLineNo">191</span> * retried before dropping the request.<a name="line.191"></a>
+<span class="sourceLineNo">192</span> * Return false if the queue is already full.<a name="line.192"></a>
+<span class="sourceLineNo">193</span> * @return true if the request can be accepted by its corresponding buffer queue.<a name="line.193"></a>
+<span class="sourceLineNo">194</span> */<a name="line.194"></a>
+<span class="sourceLineNo">195</span> public boolean put(final TableName tableName, final Put put, int maxAttempts) {<a name="line.195"></a>
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+<span class="sourceLineNo">199</span><a name="line.199"></a>
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+<span class="sourceLineNo">204</span> // AsyncProcess in the FlushWorker should take care of refreshing the location cache<a name="line.204"></a>
+<span class="sourceLineNo">205</span> // as necessary. We shouldn't have to do that here.<a name="line.205"></a>
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+<span class="sourceLineNo">208</span> // Add the put pair into its corresponding queue.<a name="line.208"></a>
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+<span class="sourceLineNo">210</span><a name="line.210"></a>
+<span class="sourceLineNo">211</span> // Generate a MultiPutStatus object and offer it into the queue<a name="line.211"></a>
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+<span class="sourceLineNo">222</span> /**<a name="line.222"></a>
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+<span class="sourceLineNo">225</span> @Deprecated<a name="line.225"></a>
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+<span class="sourceLineNo">227</span> return put(TableName.valueOf(tableName), put, retry);<a name="line.227"></a>
+<span class="sourceLineNo">228</span> }<a name="line.228"></a>
+<span class="sourceLineNo">229</span><a name="line.229"></a>
+<span class="sourceLineNo">230</span> /**<a name="line.230"></a>
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+<span class="sourceLineNo">232</span> */<a name="line.232"></a>
+<span class="sourceLineNo">233</span> @Deprecated<a name="line.233"></a>
+<span class="sourceLineNo">234</span> public boolean put(final byte[] tableName, Put put) {<a name="line.234"></a>
+<span class="sourceLineNo">235</span> return put(TableName.valueOf(tableName), put);<a name="line.235"></a>
+<span class="sourceLineNo">236</span> }<a name="line.236"></a>
+<span class="sourceLineNo">237</span><a name="line.237"></a>
+<span class="sourceLineNo">238</span> /**<a name="line.238"></a>
+<span class="sourceLineNo">239</span> * @return the current HTableMultiplexerStatus<a name="line.239"></a>
+<span class="sourceLineNo">240</span> */<a name="line.240"></a>
+<span class="sourceLineNo">241</span> public HTableMultiplexerStatus getHTableMultiplexerStatus() {<a name="line.241"></a>
+<span class="sourceLineNo">242</span> return new HTableMultiplexerStatus(serverToFlushWorkerMap);<a name="line.242"></a>
+<span class="sourceLineNo">243</span> }<a name="line.243"></a>
+<span class="sourceLineNo">244</span><a name="line.244"></a>
+<span class="sourceLineNo">245</span> @VisibleForTesting<a name="line.245"></a>
+<span class="sourceLineNo">246</span> LinkedBlockingQueue<PutStatus> getQueue(HRegionLocation addr) {<a name="line.246"></a>
+<span class="sourceLineNo">247</span> FlushWorker worker = serverToFlushWorkerMap.get(addr);<a name="line.247"></a>
+<span class="sourceLineNo">248</span> if (worker == null) {<a name="line.248"></a>
+<span class="sourceLineNo">249</span> synchronized (this.serverToFlushWorkerMap) {<a name="line.249"></a>
+<span class="sourceLineNo">250</span> worker = serverToFlushWorkerMap.get(addr);<a name="line.250"></a>
+<span class="sourceLineNo">251</span> if (worker == null) {<a name="line.251"></a>
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+<span class="sourceLineNo">254</span> perRegionServerBufferQueueSize, pool, executor);<a name="line.254"></a>
+<span class="sourceLineNo">255</span> this.serverToFlushWorkerMap.put(addr, worker);<a name="line.255"></a>
+<span class="sourceLineNo">256</span> executor.scheduleAtFixedRate(worker, flushPeriod, flushPeriod, TimeUnit.MILLISECONDS);<a name="line.256"></a>
+<span class="sourceLineNo">257</span> }<a name="line.257"></a>
+<span class="sourceLineNo">258</span> }<a name="line.258"></a>
+<span class="sourceLineNo">259</span> }<a name="line.259"></a>
+<span class="sourceLineNo">260</span> return worker.getQueue();<a name="line.260"></a>
+<span class="sourceLineNo">261</span> }<a name="line.261"></a>
+<span class="sourceLineNo">262</span><a name="line.262"></a>
+<span class="sourceLineNo">263</span> @VisibleForTesting<a name="line.263"></a>
+<span class="sourceLineNo">264</span> ClusterConnection getConnection() {<a name="line.264"></a>
+<span class="sourceLineNo">265</span> return this.conn;<a name="line.265"></a>
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+<span class="sourceLineNo">267</span><a name="line.267"></a>
+<span class="sourceLineNo">268</span> /**<a name="line.268"></a>
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+<span class="sourceLineNo">270</span> * report the number of buffered requests and the number of the failed (dropped) requests<a name="line.270"></a>
+<span class="sourceLineNo">271</span> * in total or on per region server basis.<a name="line.271"></a>
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+<span class="sourceLineNo">273</span> @InterfaceAudience.Public<a name="line.273"></a>
+<span class="sourceLineNo">274</span> @InterfaceStability.Evolving<a name="line.274"></a>
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+<span class="sourceLineNo">276</span> private long totalFailedPutCounter;<a name="line.276"></a>
+<span class="sourceLineNo">277</span> private long totalBufferedPutCounter;<a name="line.277"></a>
+<span class="sourceLineNo">278</span> private long maxLatency;<a name="line.278"></a>
+<span class="sourceLineNo">279</span> private long overallAverageLatency;<a name="line.279"></a>
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+<span class="sourceLineNo">281</span> private Map<String, Long> serverToBufferedCounterMap;<a name="line.281"></a>
+<span class="sourceLineNo">282</span> private Map<String, Long> serverToAverageLatencyMap;<a name="line.282"></a>
+<span class="sourceLineNo">283</span> private Map<String, Long> serverToMaxLatencyMap;<a name="line.283"></a>
+<span class="sourceLineNo">284</span><a name="line.284"></a>
+<span class="sourceLineNo">285</span> public HTableMultiplexerStatus(<a name="line.285"></a>
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+<span class="sourceLineNo">288</span> this.totalFailedPutCounter = 0;<a name="line.288"></a>
+<span class="sourceLineNo">289</span> this.maxLatency = 0;<a name="line.289"></a>
+<span class="sourceLineNo">290</span> this.overallAverageLatency = 0;<a name="line.290"></a>
+<span class="sourceLineNo">291</span> this.serverToBufferedCounterMap = new HashMap<String, Long>();<a name="line.291"></a>
+<span class="sourceLineNo">292</span> this.serverToFailedCounterMap = new HashMap<String, Long>();<a name="line.292"></a>
+<span class="sourceLineNo">293</span> this.serverToAverageLatencyMap = new HashMap<String, Long>();<a name="line.293"></a>
+<span class="sourceLineNo">294</span> this.serverToMaxLatencyMap = new HashMap<String, Long>();<a name="line.294"></a>
+<span class="sourceLineNo">295</span> this.initialize(serverToFlushWorkerMap);<a name="line.295"></a>
+<span class="sourceLineNo">296</span> }<a name="line.296"></a>
+<span class="sourceLineNo">297</span><a name="line.297"></a>
+<span class="sourceLineNo">298</span> private void initialize(<a name="line.298"></a>
+<span class="sourceLineNo">299</span> Map<HRegionLocation, FlushWorker> serverToFlushWorkerMap) {<a name="line.299"></a>
+<span class="sourceLineNo">300</span> if (serverToFlushWorkerMap == null) {<a name="line.300"></a>
+<span class="sourceLineNo">301</span> return;<a name="line.301"></a>
+<span class="sourceLineNo">302</span> }<a name="line.302"></a>
+<span class="sourceLineNo">303</span><a name="line.303"></a>
+<span class="sourceLineNo">304</span> long averageCalcSum = 0;<a name="line.304"></a>
+<span class="sourceLineNo">305</span> int averageCalcCount = 0;<a name="line.305"></a>
+<span class="sourceLineNo">306</span> for (Map.Entry<HRegionLocation, FlushWorker> entry : serverToFlushWorkerMap<a name="line.306"></a>
+<span class="sourceLineNo">307</span> .entrySet()) {<a name="line.307"></a>
+<span class="sourceLineNo">308</span> HRegionLocation addr = entry.getKey();<a name="line.308"></a>
+<span class="sourceLineNo">309</span> FlushWorker worker = entry.getValue();<a name="line.309"></a>
+<span class="sourceLineNo">310</span><a name="line.310"></a>
+<span class="sourceLineNo">311</span> long bufferedCounter = worker.getTotalBufferedCount();<a name="line.311"></a>
+<span class="sourceLineNo">312</span> long failedCounter = worker.getTotalFailedCount();<a name="line.312"></a>
+<span class="sourceLineNo">313</span> long serverMaxLatency = worker.getMaxLatency();<a name="line.313"></a>
+<span class="sourceLineNo">314</span> AtomicAverageCounter averageCounter = worker.getAverageLatencyCounter();<a name="line.314"></a>
+<span class="sourceLineNo">315</span> // Get sum and count pieces separately to compute overall average<a name="line.315"></a>
+<span class="sourceLineNo">316</span> SimpleEntry<Long, Integer> averageComponents = averageCounter<a name="line.316"></a>
+<span class="sourceLineNo">317</span> .getComponents();<a name="line.317"></a>
+<span class="sourceLineNo">318</span> long serverAvgLatency = averageCounter.getAndReset();<a name="line.318"></a>
+<span class="sourceLineNo">319</span><a name="line.319"></a>
+<span class="sourceLineNo">320</span> this.totalBufferedPutCounter += bufferedCounter;<a name="line.320"></a>
+<span class="sourceLineNo">321</span> this.totalFailedPutCounter += failedCounter;<a name="line.321"></a>
+<span class="sourceLineNo">322</span> if (serverMaxLatency > this.maxLatency) {<a name="line.322"></a>
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+<span class="sourceLineNo">324</span> }<a name="line.324"></a>
+<span class="sourceLineNo">325</span> averageCalcSum += averageComponents.getKey();<a name="line.325"></a>
+<span class="sourceLineNo">326</span> averageCalcCount += averageComponents.getValue();<a name="line.326"></a>
+<span class="sourceLineNo">327</span><a name="line.327"></a>
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+<span class="sourceLineNo">329</span> bufferedCounter);<a name="line.329"></a>
+<span class="sourceLineNo">330</span> this.serverToFailedCounterMap<a name="line.330"></a>
+<span class="sourceLineNo">331</span> .put(addr.getHostnamePort(),<a name="line.331"></a>
+<span class="sourceLineNo">332</span> failedCounter);<a name="line.332"></a>
+<span class="sourceLineNo">333</span> this.serverToAverageLatencyMap.put(addr.getHostnamePort(),<a name="line.333"></a>
+<span class="sourceLineNo">334</span> serverAvgLatency);<a name="line.334"></a>
+<span class="sourceLineNo">335</span> this.serverToMaxLatencyMap<a name="line.335"></a>
+<span class="sourceLineNo">336</span> .put(addr.getHostnamePort(),<a name="line.336"></a>
+<span class="sourceLineNo">337</span> serverMaxLatency);<a name="line.337"></a>
+<span class="sourceLineNo">338</span> }<a name="line.338"></a>
+<span class="sourceLineNo">339</span> this.overallAverageLatency = averageCalcCount != 0 ? averageCalcSum<a name="line.339"></a>
+<span class="sourceLineNo">340</span> / averageCalcCount : 0;<a name="line.340"></a>
+<span class="sourceLineNo">341</span> }<a name="line.341"></a>
+<span class="sourceLineNo">342</span><a name="line.342"></a>
+<span class="sourceLineNo">343</span> public long getTotalBufferedCounter() {<a name="line.343"></a>
+<span class="sourceLineNo">344</span> return this.totalBufferedPutCounter;<a name="line.344"></a>
+<span class="sourceLineNo">345</span> }<a name="line.345"></a>
+<span class="sourceLineNo">346</span><a name="line.346"></a>
+<span class="sourceLineNo">347</span> public long getTot
<TRUNCATED>