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Posted to commits@hbase.apache.org by mi...@apache.org on 2016/02/24 18:45:04 UTC
[05/30] hbase-site git commit: Published site at
28cd48b673ca743d193874b2951bc995699e8e89.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/89b638a4/xref/org/apache/hadoop/hbase/ipc/BalancedQueueRpcExecutor.html
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diff --git a/xref/org/apache/hadoop/hbase/ipc/BalancedQueueRpcExecutor.html b/xref/org/apache/hadoop/hbase/ipc/BalancedQueueRpcExecutor.html
index 738c35c..af5539b 100644
--- a/xref/org/apache/hadoop/hbase/ipc/BalancedQueueRpcExecutor.html
+++ b/xref/org/apache/hadoop/hbase/ipc/BalancedQueueRpcExecutor.html
@@ -76,31 +76,40 @@
<a class="jxr_linenumber" name="66" href="#66">66</a>
<a class="jxr_linenumber" name="67" href="#67">67</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> initializeQueues(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> numQueues,
<a class="jxr_linenumber" name="68" href="#68">68</a> <strong class="jxr_keyword">final</strong> Class<? <strong class="jxr_keyword">extends</strong> BlockingQueue> queueClass, Object... initargs) {
-<a class="jxr_linenumber" name="69" href="#69">69</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < numQueues; ++i) {
-<a class="jxr_linenumber" name="70" href="#70">70</a> queues.add((BlockingQueue<CallRunner>) ReflectionUtils.newInstance(queueClass, initargs));
-<a class="jxr_linenumber" name="71" href="#71">71</a> }
-<a class="jxr_linenumber" name="72" href="#72">72</a> }
-<a class="jxr_linenumber" name="73" href="#73">73</a>
-<a class="jxr_linenumber" name="74" href="#74">74</a> @Override
-<a class="jxr_linenumber" name="75" href="#75">75</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> dispatch(<strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/CallRunner.html">CallRunner</a> callTask) <strong class="jxr_keyword">throws</strong> InterruptedException {
-<a class="jxr_linenumber" name="76" href="#76">76</a> <strong class="jxr_keyword">int</strong> queueIndex = balancer.getNextQueue();
-<a class="jxr_linenumber" name="77" href="#77">77</a> <strong class="jxr_keyword">return</strong> queues.get(queueIndex).offer(callTask);
-<a class="jxr_linenumber" name="78" href="#78">78</a> }
-<a class="jxr_linenumber" name="79" href="#79">79</a>
-<a class="jxr_linenumber" name="80" href="#80">80</a> @Override
-<a class="jxr_linenumber" name="81" href="#81">81</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getQueueLength() {
-<a class="jxr_linenumber" name="82" href="#82">82</a> <strong class="jxr_keyword">int</strong> length = 0;
-<a class="jxr_linenumber" name="83" href="#83">83</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> BlockingQueue<CallRunner> queue : queues) {
-<a class="jxr_linenumber" name="84" href="#84">84</a> length += queue.size();
+<a class="jxr_linenumber" name="69" href="#69">69</a> <strong class="jxr_keyword">if</strong> (initargs.length > 0) {
+<a class="jxr_linenumber" name="70" href="#70">70</a> currentQueueLimit = (<strong class="jxr_keyword">int</strong>) initargs[0];
+<a class="jxr_linenumber" name="71" href="#71">71</a> initargs[0] = Math.max((<strong class="jxr_keyword">int</strong>) initargs[0], DEFAULT_CALL_QUEUE_SIZE_HARD_LIMIT);
+<a class="jxr_linenumber" name="72" href="#72">72</a> }
+<a class="jxr_linenumber" name="73" href="#73">73</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < numQueues; ++i) {
+<a class="jxr_linenumber" name="74" href="#74">74</a> queues.add((BlockingQueue<CallRunner>) ReflectionUtils.newInstance(queueClass, initargs));
+<a class="jxr_linenumber" name="75" href="#75">75</a> }
+<a class="jxr_linenumber" name="76" href="#76">76</a> }
+<a class="jxr_linenumber" name="77" href="#77">77</a>
+<a class="jxr_linenumber" name="78" href="#78">78</a> @Override
+<a class="jxr_linenumber" name="79" href="#79">79</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> dispatch(<strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/CallRunner.html">CallRunner</a> callTask) <strong class="jxr_keyword">throws</strong> InterruptedException {
+<a class="jxr_linenumber" name="80" href="#80">80</a> <strong class="jxr_keyword">int</strong> queueIndex = balancer.getNextQueue();
+<a class="jxr_linenumber" name="81" href="#81">81</a> BlockingQueue<CallRunner> queue = queues.get(queueIndex);
+<a class="jxr_linenumber" name="82" href="#82">82</a> <em class="jxr_comment">// that means we can overflow by at most <num reader> size (5), that's ok</em>
+<a class="jxr_linenumber" name="83" href="#83">83</a> <strong class="jxr_keyword">if</strong> (queue.size() >= currentQueueLimit) {
+<a class="jxr_linenumber" name="84" href="#84">84</a> <strong class="jxr_keyword">return</strong> false;
<a class="jxr_linenumber" name="85" href="#85">85</a> }
-<a class="jxr_linenumber" name="86" href="#86">86</a> <strong class="jxr_keyword">return</strong> length;
+<a class="jxr_linenumber" name="86" href="#86">86</a> <strong class="jxr_keyword">return</strong> queue.offer(callTask);
<a class="jxr_linenumber" name="87" href="#87">87</a> }
<a class="jxr_linenumber" name="88" href="#88">88</a>
<a class="jxr_linenumber" name="89" href="#89">89</a> @Override
-<a class="jxr_linenumber" name="90" href="#90">90</a> <strong class="jxr_keyword">public</strong> List<BlockingQueue<CallRunner>> getQueues() {
-<a class="jxr_linenumber" name="91" href="#91">91</a> <strong class="jxr_keyword">return</strong> queues;
-<a class="jxr_linenumber" name="92" href="#92">92</a> }
-<a class="jxr_linenumber" name="93" href="#93">93</a> }
+<a class="jxr_linenumber" name="90" href="#90">90</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getQueueLength() {
+<a class="jxr_linenumber" name="91" href="#91">91</a> <strong class="jxr_keyword">int</strong> length = 0;
+<a class="jxr_linenumber" name="92" href="#92">92</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> BlockingQueue<CallRunner> queue : queues) {
+<a class="jxr_linenumber" name="93" href="#93">93</a> length += queue.size();
+<a class="jxr_linenumber" name="94" href="#94">94</a> }
+<a class="jxr_linenumber" name="95" href="#95">95</a> <strong class="jxr_keyword">return</strong> length;
+<a class="jxr_linenumber" name="96" href="#96">96</a> }
+<a class="jxr_linenumber" name="97" href="#97">97</a>
+<a class="jxr_linenumber" name="98" href="#98">98</a> @Override
+<a class="jxr_linenumber" name="99" href="#99">99</a> <strong class="jxr_keyword">public</strong> List<BlockingQueue<CallRunner>> getQueues() {
+<a class="jxr_linenumber" name="100" href="#100">100</a> <strong class="jxr_keyword">return</strong> queues;
+<a class="jxr_linenumber" name="101" href="#101">101</a> }
+<a class="jxr_linenumber" name="102" href="#102">102</a> }
</pre>
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</html>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/89b638a4/xref/org/apache/hadoop/hbase/ipc/RWQueueRpcExecutor.html
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diff --git a/xref/org/apache/hadoop/hbase/ipc/RWQueueRpcExecutor.html b/xref/org/apache/hadoop/hbase/ipc/RWQueueRpcExecutor.html
index 5498e19..05441c7 100644
--- a/xref/org/apache/hadoop/hbase/ipc/RWQueueRpcExecutor.html
+++ b/xref/org/apache/hadoop/hbase/ipc/RWQueueRpcExecutor.html
@@ -149,112 +149,127 @@
<a class="jxr_linenumber" name="139" href="#139">139</a> <span class="jxr_string">" readQueues="</span> + numReadQueues + <span class="jxr_string">" readHandlers="</span> + readHandlersCount +
<a class="jxr_linenumber" name="140" href="#140">140</a> ((numScanQueues == 0) ? <span class="jxr_string">""</span> : <span class="jxr_string">" scanQueues="</span> + numScanQueues +
<a class="jxr_linenumber" name="141" href="#141">141</a> <span class="jxr_string">" scanHandlers="</span> + scanHandlersCount));
-<a class="jxr_linenumber" name="142" href="#142">142</a>
-<a class="jxr_linenumber" name="143" href="#143">143</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < numWriteQueues; ++i) {
-<a class="jxr_linenumber" name="144" href="#144">144</a> queues.add((BlockingQueue<CallRunner>)
-<a class="jxr_linenumber" name="145" href="#145">145</a> ReflectionUtils.newInstance(writeQueueClass, writeQueueInitArgs));
+<a class="jxr_linenumber" name="142" href="#142">142</a> <strong class="jxr_keyword">if</strong> (writeQueueInitArgs.length > 0) {
+<a class="jxr_linenumber" name="143" href="#143">143</a> currentQueueLimit = (<strong class="jxr_keyword">int</strong>) writeQueueInitArgs[0];
+<a class="jxr_linenumber" name="144" href="#144">144</a> writeQueueInitArgs[0] = Math.max((<strong class="jxr_keyword">int</strong>) writeQueueInitArgs[0],
+<a class="jxr_linenumber" name="145" href="#145">145</a> DEFAULT_CALL_QUEUE_SIZE_HARD_LIMIT);
<a class="jxr_linenumber" name="146" href="#146">146</a> }
-<a class="jxr_linenumber" name="147" href="#147">147</a>
-<a class="jxr_linenumber" name="148" href="#148">148</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < (numReadQueues + numScanQueues); ++i) {
+<a class="jxr_linenumber" name="147" href="#147">147</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < numWriteQueues; ++i) {
+<a class="jxr_linenumber" name="148" href="#148">148</a>
<a class="jxr_linenumber" name="149" href="#149">149</a> queues.add((BlockingQueue<CallRunner>)
-<a class="jxr_linenumber" name="150" href="#150">150</a> ReflectionUtils.newInstance(readQueueClass, readQueueInitArgs));
+<a class="jxr_linenumber" name="150" href="#150">150</a> ReflectionUtils.newInstance(writeQueueClass, writeQueueInitArgs));
<a class="jxr_linenumber" name="151" href="#151">151</a> }
-<a class="jxr_linenumber" name="152" href="#152">152</a> }
-<a class="jxr_linenumber" name="153" href="#153">153</a>
-<a class="jxr_linenumber" name="154" href="#154">154</a> @Override
-<a class="jxr_linenumber" name="155" href="#155">155</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> startHandlers(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> port) {
-<a class="jxr_linenumber" name="156" href="#156">156</a> startHandlers(<span class="jxr_string">".write"</span>, writeHandlersCount, queues, 0, numWriteQueues, port);
-<a class="jxr_linenumber" name="157" href="#157">157</a> startHandlers(<span class="jxr_string">".read"</span>, readHandlersCount, queues, numWriteQueues, numReadQueues, port);
-<a class="jxr_linenumber" name="158" href="#158">158</a> startHandlers(<span class="jxr_string">".scan"</span>, scanHandlersCount, queues,
-<a class="jxr_linenumber" name="159" href="#159">159</a> numWriteQueues + numReadQueues, numScanQueues, port);
-<a class="jxr_linenumber" name="160" href="#160">160</a> }
-<a class="jxr_linenumber" name="161" href="#161">161</a>
-<a class="jxr_linenumber" name="162" href="#162">162</a> @Override
-<a class="jxr_linenumber" name="163" href="#163">163</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> dispatch(<strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/CallRunner.html">CallRunner</a> callTask) <strong class="jxr_keyword">throws</strong> InterruptedException {
-<a class="jxr_linenumber" name="164" href="#164">164</a> RpcServer.Call call = callTask.getCall();
-<a class="jxr_linenumber" name="165" href="#165">165</a> <strong class="jxr_keyword">int</strong> queueIndex;
-<a class="jxr_linenumber" name="166" href="#166">166</a> <strong class="jxr_keyword">if</strong> (isWriteRequest(call.getHeader(), call.param)) {
-<a class="jxr_linenumber" name="167" href="#167">167</a> queueIndex = writeBalancer.getNextQueue();
-<a class="jxr_linenumber" name="168" href="#168">168</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (numScanQueues > 0 && isScanRequest(call.getHeader(), call.param)) {
-<a class="jxr_linenumber" name="169" href="#169">169</a> queueIndex = numWriteQueues + numReadQueues + scanBalancer.getNextQueue();
-<a class="jxr_linenumber" name="170" href="#170">170</a> } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="171" href="#171">171</a> queueIndex = numWriteQueues + readBalancer.getNextQueue();
-<a class="jxr_linenumber" name="172" href="#172">172</a> }
-<a class="jxr_linenumber" name="173" href="#173">173</a> <strong class="jxr_keyword">return</strong> queues.get(queueIndex).offer(callTask);
-<a class="jxr_linenumber" name="174" href="#174">174</a> }
-<a class="jxr_linenumber" name="175" href="#175">175</a>
-<a class="jxr_linenumber" name="176" href="#176">176</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> isWriteRequest(<strong class="jxr_keyword">final</strong> RequestHeader header, <strong class="jxr_keyword">final</strong> Message param) {
-<a class="jxr_linenumber" name="177" href="#177">177</a> <em class="jxr_comment">// TODO: Is there a better way to do this?</em>
-<a class="jxr_linenumber" name="178" href="#178">178</a> <strong class="jxr_keyword">if</strong> (param instanceof MultiRequest) {
-<a class="jxr_linenumber" name="179" href="#179">179</a> MultiRequest multi = (MultiRequest)param;
-<a class="jxr_linenumber" name="180" href="#180">180</a> <strong class="jxr_keyword">for</strong> (RegionAction regionAction : multi.getRegionActionList()) {
-<a class="jxr_linenumber" name="181" href="#181">181</a> <strong class="jxr_keyword">for</strong> (Action action: regionAction.getActionList()) {
-<a class="jxr_linenumber" name="182" href="#182">182</a> <strong class="jxr_keyword">if</strong> (action.hasMutation()) {
-<a class="jxr_linenumber" name="183" href="#183">183</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="184" href="#184">184</a> }
-<a class="jxr_linenumber" name="185" href="#185">185</a> }
-<a class="jxr_linenumber" name="186" href="#186">186</a> }
+<a class="jxr_linenumber" name="152" href="#152">152</a>
+<a class="jxr_linenumber" name="153" href="#153">153</a> <strong class="jxr_keyword">if</strong> (readQueueInitArgs.length > 0) {
+<a class="jxr_linenumber" name="154" href="#154">154</a> currentQueueLimit = (<strong class="jxr_keyword">int</strong>) readQueueInitArgs[0];
+<a class="jxr_linenumber" name="155" href="#155">155</a> readQueueInitArgs[0] = Math.max((<strong class="jxr_keyword">int</strong>) readQueueInitArgs[0],
+<a class="jxr_linenumber" name="156" href="#156">156</a> DEFAULT_CALL_QUEUE_SIZE_HARD_LIMIT);
+<a class="jxr_linenumber" name="157" href="#157">157</a> }
+<a class="jxr_linenumber" name="158" href="#158">158</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < (numReadQueues + numScanQueues); ++i) {
+<a class="jxr_linenumber" name="159" href="#159">159</a> queues.add((BlockingQueue<CallRunner>)
+<a class="jxr_linenumber" name="160" href="#160">160</a> ReflectionUtils.newInstance(readQueueClass, readQueueInitArgs));
+<a class="jxr_linenumber" name="161" href="#161">161</a> }
+<a class="jxr_linenumber" name="162" href="#162">162</a> }
+<a class="jxr_linenumber" name="163" href="#163">163</a>
+<a class="jxr_linenumber" name="164" href="#164">164</a> @Override
+<a class="jxr_linenumber" name="165" href="#165">165</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> startHandlers(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> port) {
+<a class="jxr_linenumber" name="166" href="#166">166</a> startHandlers(<span class="jxr_string">".write"</span>, writeHandlersCount, queues, 0, numWriteQueues, port);
+<a class="jxr_linenumber" name="167" href="#167">167</a> startHandlers(<span class="jxr_string">".read"</span>, readHandlersCount, queues, numWriteQueues, numReadQueues, port);
+<a class="jxr_linenumber" name="168" href="#168">168</a> startHandlers(<span class="jxr_string">".scan"</span>, scanHandlersCount, queues,
+<a class="jxr_linenumber" name="169" href="#169">169</a> numWriteQueues + numReadQueues, numScanQueues, port);
+<a class="jxr_linenumber" name="170" href="#170">170</a> }
+<a class="jxr_linenumber" name="171" href="#171">171</a>
+<a class="jxr_linenumber" name="172" href="#172">172</a> @Override
+<a class="jxr_linenumber" name="173" href="#173">173</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> dispatch(<strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/CallRunner.html">CallRunner</a> callTask) <strong class="jxr_keyword">throws</strong> InterruptedException {
+<a class="jxr_linenumber" name="174" href="#174">174</a> RpcServer.Call call = callTask.getCall();
+<a class="jxr_linenumber" name="175" href="#175">175</a> <strong class="jxr_keyword">int</strong> queueIndex;
+<a class="jxr_linenumber" name="176" href="#176">176</a> <strong class="jxr_keyword">if</strong> (isWriteRequest(call.getHeader(), call.param)) {
+<a class="jxr_linenumber" name="177" href="#177">177</a> queueIndex = writeBalancer.getNextQueue();
+<a class="jxr_linenumber" name="178" href="#178">178</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (numScanQueues > 0 && isScanRequest(call.getHeader(), call.param)) {
+<a class="jxr_linenumber" name="179" href="#179">179</a> queueIndex = numWriteQueues + numReadQueues + scanBalancer.getNextQueue();
+<a class="jxr_linenumber" name="180" href="#180">180</a> } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="181" href="#181">181</a> queueIndex = numWriteQueues + readBalancer.getNextQueue();
+<a class="jxr_linenumber" name="182" href="#182">182</a> }
+<a class="jxr_linenumber" name="183" href="#183">183</a>
+<a class="jxr_linenumber" name="184" href="#184">184</a> BlockingQueue<CallRunner> queue = queues.get(queueIndex);
+<a class="jxr_linenumber" name="185" href="#185">185</a> <strong class="jxr_keyword">if</strong> (queue.size() >= currentQueueLimit) {
+<a class="jxr_linenumber" name="186" href="#186">186</a> <strong class="jxr_keyword">return</strong> false;
<a class="jxr_linenumber" name="187" href="#187">187</a> }
-<a class="jxr_linenumber" name="188" href="#188">188</a> <strong class="jxr_keyword">if</strong> (param instanceof MutateRequest) {
-<a class="jxr_linenumber" name="189" href="#189">189</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="190" href="#190">190</a> }
-<a class="jxr_linenumber" name="191" href="#191">191</a> <em class="jxr_comment">// Below here are methods for master. It's a pretty brittle version of this.</em>
-<a class="jxr_linenumber" name="192" href="#192">192</a> <em class="jxr_comment">// Not sure that master actually needs a read/write queue since 90% of requests to</em>
-<a class="jxr_linenumber" name="193" href="#193">193</a> <em class="jxr_comment">// master are writing to status or changing the meta table.</em>
-<a class="jxr_linenumber" name="194" href="#194">194</a> <em class="jxr_comment">// All other read requests are admin generated and can be processed whenever.</em>
-<a class="jxr_linenumber" name="195" href="#195">195</a> <em class="jxr_comment">// However changing that would require a pretty drastic change and should be done for</em>
-<a class="jxr_linenumber" name="196" href="#196">196</a> <em class="jxr_comment">// the next major release and not as a fix for HBASE-14239</em>
-<a class="jxr_linenumber" name="197" href="#197">197</a> <strong class="jxr_keyword">if</strong> (param instanceof RegionServerStatusProtos.ReportRegionStateTransitionRequest) {
-<a class="jxr_linenumber" name="198" href="#198">198</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="199" href="#199">199</a> }
-<a class="jxr_linenumber" name="200" href="#200">200</a> <strong class="jxr_keyword">if</strong> (param instanceof RegionServerStatusProtos.RegionServerStartupRequest) {
-<a class="jxr_linenumber" name="201" href="#201">201</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
+<a class="jxr_linenumber" name="188" href="#188">188</a> <strong class="jxr_keyword">return</strong> queue.offer(callTask);
+<a class="jxr_linenumber" name="189" href="#189">189</a> }
+<a class="jxr_linenumber" name="190" href="#190">190</a>
+<a class="jxr_linenumber" name="191" href="#191">191</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> isWriteRequest(<strong class="jxr_keyword">final</strong> RequestHeader header, <strong class="jxr_keyword">final</strong> Message param) {
+<a class="jxr_linenumber" name="192" href="#192">192</a> <em class="jxr_comment">// TODO: Is there a better way to do this?</em>
+<a class="jxr_linenumber" name="193" href="#193">193</a> <strong class="jxr_keyword">if</strong> (param instanceof MultiRequest) {
+<a class="jxr_linenumber" name="194" href="#194">194</a> MultiRequest multi = (MultiRequest)param;
+<a class="jxr_linenumber" name="195" href="#195">195</a> <strong class="jxr_keyword">for</strong> (RegionAction regionAction : multi.getRegionActionList()) {
+<a class="jxr_linenumber" name="196" href="#196">196</a> <strong class="jxr_keyword">for</strong> (Action action: regionAction.getActionList()) {
+<a class="jxr_linenumber" name="197" href="#197">197</a> <strong class="jxr_keyword">if</strong> (action.hasMutation()) {
+<a class="jxr_linenumber" name="198" href="#198">198</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
+<a class="jxr_linenumber" name="199" href="#199">199</a> }
+<a class="jxr_linenumber" name="200" href="#200">200</a> }
+<a class="jxr_linenumber" name="201" href="#201">201</a> }
<a class="jxr_linenumber" name="202" href="#202">202</a> }
-<a class="jxr_linenumber" name="203" href="#203">203</a> <strong class="jxr_keyword">if</strong> (param instanceof RegionServerStatusProtos.RegionServerReportRequest) {
+<a class="jxr_linenumber" name="203" href="#203">203</a> <strong class="jxr_keyword">if</strong> (param instanceof MutateRequest) {
<a class="jxr_linenumber" name="204" href="#204">204</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="205" href="#205">205</a> }
-<a class="jxr_linenumber" name="206" href="#206">206</a> <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="207" href="#207">207</a> }
-<a class="jxr_linenumber" name="208" href="#208">208</a>
-<a class="jxr_linenumber" name="209" href="#209">209</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> isScanRequest(<strong class="jxr_keyword">final</strong> RequestHeader header, <strong class="jxr_keyword">final</strong> Message param) {
-<a class="jxr_linenumber" name="210" href="#210">210</a> <strong class="jxr_keyword">if</strong> (param instanceof ScanRequest) {
-<a class="jxr_linenumber" name="211" href="#211">211</a> <em class="jxr_comment">// The first scan request will be executed as a "short read"</em>
-<a class="jxr_linenumber" name="212" href="#212">212</a> ScanRequest request = (ScanRequest)param;
-<a class="jxr_linenumber" name="213" href="#213">213</a> <strong class="jxr_keyword">return</strong> request.hasScannerId();
+<a class="jxr_linenumber" name="206" href="#206">206</a> <em class="jxr_comment">// Below here are methods for master. It's a pretty brittle version of this.</em>
+<a class="jxr_linenumber" name="207" href="#207">207</a> <em class="jxr_comment">// Not sure that master actually needs a read/write queue since 90% of requests to</em>
+<a class="jxr_linenumber" name="208" href="#208">208</a> <em class="jxr_comment">// master are writing to status or changing the meta table.</em>
+<a class="jxr_linenumber" name="209" href="#209">209</a> <em class="jxr_comment">// All other read requests are admin generated and can be processed whenever.</em>
+<a class="jxr_linenumber" name="210" href="#210">210</a> <em class="jxr_comment">// However changing that would require a pretty drastic change and should be done for</em>
+<a class="jxr_linenumber" name="211" href="#211">211</a> <em class="jxr_comment">// the next major release and not as a fix for HBASE-14239</em>
+<a class="jxr_linenumber" name="212" href="#212">212</a> <strong class="jxr_keyword">if</strong> (param instanceof RegionServerStatusProtos.ReportRegionStateTransitionRequest) {
+<a class="jxr_linenumber" name="213" href="#213">213</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="214" href="#214">214</a> }
-<a class="jxr_linenumber" name="215" href="#215">215</a> <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="216" href="#216">216</a> }
-<a class="jxr_linenumber" name="217" href="#217">217</a>
-<a class="jxr_linenumber" name="218" href="#218">218</a> @Override
-<a class="jxr_linenumber" name="219" href="#219">219</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getQueueLength() {
-<a class="jxr_linenumber" name="220" href="#220">220</a> <strong class="jxr_keyword">int</strong> length = 0;
-<a class="jxr_linenumber" name="221" href="#221">221</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> BlockingQueue<CallRunner> queue: queues) {
-<a class="jxr_linenumber" name="222" href="#222">222</a> length += queue.size();
-<a class="jxr_linenumber" name="223" href="#223">223</a> }
-<a class="jxr_linenumber" name="224" href="#224">224</a> <strong class="jxr_keyword">return</strong> length;
-<a class="jxr_linenumber" name="225" href="#225">225</a> }
-<a class="jxr_linenumber" name="226" href="#226">226</a>
-<a class="jxr_linenumber" name="227" href="#227">227</a> @Override
-<a class="jxr_linenumber" name="228" href="#228">228</a> <strong class="jxr_keyword">protected</strong> List<BlockingQueue<CallRunner>> getQueues() {
-<a class="jxr_linenumber" name="229" href="#229">229</a> <strong class="jxr_keyword">return</strong> queues;
-<a class="jxr_linenumber" name="230" href="#230">230</a> }
-<a class="jxr_linenumber" name="231" href="#231">231</a>
-<a class="jxr_linenumber" name="232" href="#232">232</a> <em class="jxr_comment">/*</em>
-<a class="jxr_linenumber" name="233" href="#233">233</a> <em class="jxr_comment"> * Calculate the number of writers based on the "total count" and the read share.</em>
-<a class="jxr_linenumber" name="234" href="#234">234</a> <em class="jxr_comment"> * You'll get at least one writer.</em>
-<a class="jxr_linenumber" name="235" href="#235">235</a> <em class="jxr_comment"> */</em>
-<a class="jxr_linenumber" name="236" href="#236">236</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> calcNumWriters(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> count, <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">float</strong> readShare) {
-<a class="jxr_linenumber" name="237" href="#237">237</a> <strong class="jxr_keyword">return</strong> Math.max(1, count - Math.max(1, (<strong class="jxr_keyword">int</strong>)Math.round(count * readShare)));
-<a class="jxr_linenumber" name="238" href="#238">238</a> }
-<a class="jxr_linenumber" name="239" href="#239">239</a>
-<a class="jxr_linenumber" name="240" href="#240">240</a> <em class="jxr_comment">/*</em>
-<a class="jxr_linenumber" name="241" href="#241">241</a> <em class="jxr_comment"> * Calculate the number of readers based on the "total count" and the read share.</em>
-<a class="jxr_linenumber" name="242" href="#242">242</a> <em class="jxr_comment"> * You'll get at least one reader.</em>
-<a class="jxr_linenumber" name="243" href="#243">243</a> <em class="jxr_comment"> */</em>
-<a class="jxr_linenumber" name="244" href="#244">244</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> calcNumReaders(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> count, <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">float</strong> readShare) {
-<a class="jxr_linenumber" name="245" href="#245">245</a> <strong class="jxr_keyword">return</strong> count - calcNumWriters(count, readShare);
-<a class="jxr_linenumber" name="246" href="#246">246</a> }
-<a class="jxr_linenumber" name="247" href="#247">247</a> }
+<a class="jxr_linenumber" name="215" href="#215">215</a> <strong class="jxr_keyword">if</strong> (param instanceof RegionServerStatusProtos.RegionServerStartupRequest) {
+<a class="jxr_linenumber" name="216" href="#216">216</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
+<a class="jxr_linenumber" name="217" href="#217">217</a> }
+<a class="jxr_linenumber" name="218" href="#218">218</a> <strong class="jxr_keyword">if</strong> (param instanceof RegionServerStatusProtos.RegionServerReportRequest) {
+<a class="jxr_linenumber" name="219" href="#219">219</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
+<a class="jxr_linenumber" name="220" href="#220">220</a> }
+<a class="jxr_linenumber" name="221" href="#221">221</a> <strong class="jxr_keyword">return</strong> false;
+<a class="jxr_linenumber" name="222" href="#222">222</a> }
+<a class="jxr_linenumber" name="223" href="#223">223</a>
+<a class="jxr_linenumber" name="224" href="#224">224</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> isScanRequest(<strong class="jxr_keyword">final</strong> RequestHeader header, <strong class="jxr_keyword">final</strong> Message param) {
+<a class="jxr_linenumber" name="225" href="#225">225</a> <strong class="jxr_keyword">if</strong> (param instanceof ScanRequest) {
+<a class="jxr_linenumber" name="226" href="#226">226</a> <em class="jxr_comment">// The first scan request will be executed as a "short read"</em>
+<a class="jxr_linenumber" name="227" href="#227">227</a> ScanRequest request = (ScanRequest)param;
+<a class="jxr_linenumber" name="228" href="#228">228</a> <strong class="jxr_keyword">return</strong> request.hasScannerId();
+<a class="jxr_linenumber" name="229" href="#229">229</a> }
+<a class="jxr_linenumber" name="230" href="#230">230</a> <strong class="jxr_keyword">return</strong> false;
+<a class="jxr_linenumber" name="231" href="#231">231</a> }
+<a class="jxr_linenumber" name="232" href="#232">232</a>
+<a class="jxr_linenumber" name="233" href="#233">233</a> @Override
+<a class="jxr_linenumber" name="234" href="#234">234</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getQueueLength() {
+<a class="jxr_linenumber" name="235" href="#235">235</a> <strong class="jxr_keyword">int</strong> length = 0;
+<a class="jxr_linenumber" name="236" href="#236">236</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">final</strong> BlockingQueue<CallRunner> queue: queues) {
+<a class="jxr_linenumber" name="237" href="#237">237</a> length += queue.size();
+<a class="jxr_linenumber" name="238" href="#238">238</a> }
+<a class="jxr_linenumber" name="239" href="#239">239</a> <strong class="jxr_keyword">return</strong> length;
+<a class="jxr_linenumber" name="240" href="#240">240</a> }
+<a class="jxr_linenumber" name="241" href="#241">241</a>
+<a class="jxr_linenumber" name="242" href="#242">242</a> @Override
+<a class="jxr_linenumber" name="243" href="#243">243</a> <strong class="jxr_keyword">protected</strong> List<BlockingQueue<CallRunner>> getQueues() {
+<a class="jxr_linenumber" name="244" href="#244">244</a> <strong class="jxr_keyword">return</strong> queues;
+<a class="jxr_linenumber" name="245" href="#245">245</a> }
+<a class="jxr_linenumber" name="246" href="#246">246</a>
+<a class="jxr_linenumber" name="247" href="#247">247</a> <em class="jxr_comment">/*</em>
+<a class="jxr_linenumber" name="248" href="#248">248</a> <em class="jxr_comment"> * Calculate the number of writers based on the "total count" and the read share.</em>
+<a class="jxr_linenumber" name="249" href="#249">249</a> <em class="jxr_comment"> * You'll get at least one writer.</em>
+<a class="jxr_linenumber" name="250" href="#250">250</a> <em class="jxr_comment"> */</em>
+<a class="jxr_linenumber" name="251" href="#251">251</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> calcNumWriters(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> count, <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">float</strong> readShare) {
+<a class="jxr_linenumber" name="252" href="#252">252</a> <strong class="jxr_keyword">return</strong> Math.max(1, count - Math.max(1, (<strong class="jxr_keyword">int</strong>)Math.round(count * readShare)));
+<a class="jxr_linenumber" name="253" href="#253">253</a> }
+<a class="jxr_linenumber" name="254" href="#254">254</a>
+<a class="jxr_linenumber" name="255" href="#255">255</a> <em class="jxr_comment">/*</em>
+<a class="jxr_linenumber" name="256" href="#256">256</a> <em class="jxr_comment"> * Calculate the number of readers based on the "total count" and the read share.</em>
+<a class="jxr_linenumber" name="257" href="#257">257</a> <em class="jxr_comment"> * You'll get at least one reader.</em>
+<a class="jxr_linenumber" name="258" href="#258">258</a> <em class="jxr_comment"> */</em>
+<a class="jxr_linenumber" name="259" href="#259">259</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> calcNumReaders(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> count, <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">float</strong> readShare) {
+<a class="jxr_linenumber" name="260" href="#260">260</a> <strong class="jxr_keyword">return</strong> count - calcNumWriters(count, readShare);
+<a class="jxr_linenumber" name="261" href="#261">261</a> }
+<a class="jxr_linenumber" name="262" href="#262">262</a> }
</pre>
<hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body>
</html>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/89b638a4/xref/org/apache/hadoop/hbase/ipc/RpcExecutor.html
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diff --git a/xref/org/apache/hadoop/hbase/ipc/RpcExecutor.html b/xref/org/apache/hadoop/hbase/ipc/RpcExecutor.html
index e2673d5..03e4209 100644
--- a/xref/org/apache/hadoop/hbase/ipc/RpcExecutor.html
+++ b/xref/org/apache/hadoop/hbase/ipc/RpcExecutor.html
@@ -52,175 +52,186 @@
<a class="jxr_linenumber" name="42" href="#42">42</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html">RpcExecutor</a> {
<a class="jxr_linenumber" name="43" href="#43">43</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Log LOG = LogFactory.getLog(RpcExecutor.<strong class="jxr_keyword">class</strong>);
<a class="jxr_linenumber" name="44" href="#44">44</a>
-<a class="jxr_linenumber" name="45" href="#45">45</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> AtomicInteger activeHandlerCount = <strong class="jxr_keyword">new</strong> AtomicInteger(0);
-<a class="jxr_linenumber" name="46" href="#46">46</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> List<Thread> handlers;
-<a class="jxr_linenumber" name="47" href="#47">47</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> handlerCount;
-<a class="jxr_linenumber" name="48" href="#48">48</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> String name;
-<a class="jxr_linenumber" name="49" href="#49">49</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> AtomicInteger failedHandlerCount = <strong class="jxr_keyword">new</strong> AtomicInteger(0);
-<a class="jxr_linenumber" name="50" href="#50">50</a>
-<a class="jxr_linenumber" name="51" href="#51">51</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> running;
-<a class="jxr_linenumber" name="52" href="#52">52</a>
-<a class="jxr_linenumber" name="53" href="#53">53</a> <strong class="jxr_keyword">private</strong> Configuration conf = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="54" href="#54">54</a> <strong class="jxr_keyword">private</strong> <a href="../../../../../org/apache/hadoop/hbase/Abortable.html">Abortable</a> abortable = <strong class="jxr_keyword">null</strong>;
+<a class="jxr_linenumber" name="45" href="#45">45</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> DEFAULT_CALL_QUEUE_SIZE_HARD_LIMIT = 250;
+<a class="jxr_linenumber" name="46" href="#46">46</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">volatile</strong> <strong class="jxr_keyword">int</strong> currentQueueLimit;
+<a class="jxr_linenumber" name="47" href="#47">47</a>
+<a class="jxr_linenumber" name="48" href="#48">48</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> AtomicInteger activeHandlerCount = <strong class="jxr_keyword">new</strong> AtomicInteger(0);
+<a class="jxr_linenumber" name="49" href="#49">49</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> List<Thread> handlers;
+<a class="jxr_linenumber" name="50" href="#50">50</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> handlerCount;
+<a class="jxr_linenumber" name="51" href="#51">51</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> String name;
+<a class="jxr_linenumber" name="52" href="#52">52</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> AtomicInteger failedHandlerCount = <strong class="jxr_keyword">new</strong> AtomicInteger(0);
+<a class="jxr_linenumber" name="53" href="#53">53</a>
+<a class="jxr_linenumber" name="54" href="#54">54</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> running;
<a class="jxr_linenumber" name="55" href="#55">55</a>
-<a class="jxr_linenumber" name="56" href="#56">56</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html">RpcExecutor</a>(<strong class="jxr_keyword">final</strong> String name, <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> handlerCount) {
-<a class="jxr_linenumber" name="57" href="#57">57</a> <strong class="jxr_keyword">this</strong>.handlers = <strong class="jxr_keyword">new</strong> ArrayList<Thread>(handlerCount);
-<a class="jxr_linenumber" name="58" href="#58">58</a> <strong class="jxr_keyword">this</strong>.handlerCount = handlerCount;
-<a class="jxr_linenumber" name="59" href="#59">59</a> <strong class="jxr_keyword">this</strong>.name = Strings.nullToEmpty(name);
-<a class="jxr_linenumber" name="60" href="#60">60</a> }
-<a class="jxr_linenumber" name="61" href="#61">61</a>
-<a class="jxr_linenumber" name="62" href="#62">62</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html">RpcExecutor</a>(<strong class="jxr_keyword">final</strong> String name, <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> handlerCount, <strong class="jxr_keyword">final</strong> Configuration conf,
-<a class="jxr_linenumber" name="63" href="#63">63</a> <strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/hadoop/hbase/Abortable.html">Abortable</a> abortable) {
-<a class="jxr_linenumber" name="64" href="#64">64</a> <strong class="jxr_keyword">this</strong>(name, handlerCount);
-<a class="jxr_linenumber" name="65" href="#65">65</a> <strong class="jxr_keyword">this</strong>.conf = conf;
-<a class="jxr_linenumber" name="66" href="#66">66</a> <strong class="jxr_keyword">this</strong>.abortable = abortable;
-<a class="jxr_linenumber" name="67" href="#67">67</a> }
-<a class="jxr_linenumber" name="68" href="#68">68</a>
-<a class="jxr_linenumber" name="69" href="#69">69</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> start(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> port) {
-<a class="jxr_linenumber" name="70" href="#70">70</a> running = <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="71" href="#71">71</a> startHandlers(port);
-<a class="jxr_linenumber" name="72" href="#72">72</a> }
-<a class="jxr_linenumber" name="73" href="#73">73</a>
-<a class="jxr_linenumber" name="74" href="#74">74</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> stop() {
-<a class="jxr_linenumber" name="75" href="#75">75</a> running = false;
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<a class="jxr_linenumber" name="87" href="#87">87</a>
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<a class="jxr_linenumber" name="90" href="#90">90</a>
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<a class="jxr_linenumber" name="93" href="#93">93</a>
-<a class="jxr_linenumber" name="94" href="#94">94</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> startHandlers(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> port) {
-<a class="jxr_linenumber" name="95" href="#95">95</a> List<BlockingQueue<CallRunner>> callQueues = getQueues();
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-<a class="jxr_linenumber" name="98" href="#98">98</a>
-<a class="jxr_linenumber" name="99" href="#99">99</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> startHandlers(<strong class="jxr_keyword">final</strong> String nameSuffix, <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> numHandlers,
-<a class="jxr_linenumber" name="100" href="#100">100</a> <strong class="jxr_keyword">final</strong> List<BlockingQueue<CallRunner>> callQueues,
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-<a class="jxr_linenumber" name="103" href="#103">103</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < numHandlers; i++) {
-<a class="jxr_linenumber" name="104" href="#104">104</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> index = qindex + (i % qsize);
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-<a class="jxr_linenumber" name="106" href="#106">106</a> @Override
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-<a class="jxr_linenumber" name="110" href="#110">110</a> });
-<a class="jxr_linenumber" name="111" href="#111">111</a> t.setDaemon(<strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="112" href="#112">112</a> t.setName(threadPrefix + <span class="jxr_string">"RpcServer.handler="</span> + handlers.size() +
-<a class="jxr_linenumber" name="113" href="#113">113</a> <span class="jxr_string">",queue="</span> + index + <span class="jxr_string">",port="</span> + port);
-<a class="jxr_linenumber" name="114" href="#114">114</a> t.start();
-<a class="jxr_linenumber" name="115" href="#115">115</a> LOG.debug(threadPrefix + <span class="jxr_string">" Start Handler index="</span> + handlers.size() + <span class="jxr_string">" queue="</span> + index);
-<a class="jxr_linenumber" name="116" href="#116">116</a> handlers.add(t);
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-<a class="jxr_linenumber" name="118" href="#118">118</a> }
-<a class="jxr_linenumber" name="119" href="#119">119</a>
-<a class="jxr_linenumber" name="120" href="#120">120</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> consumerLoop(<strong class="jxr_keyword">final</strong> BlockingQueue<CallRunner> myQueue) {
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-<a class="jxr_linenumber" name="125" href="#125">125</a> <strong class="jxr_keyword">try</strong> {
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-<a class="jxr_linenumber" name="203" href="#203">203</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> queueSize;
-<a class="jxr_linenumber" name="204" href="#204">204</a>
-<a class="jxr_linenumber" name="205" href="#205">205</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html">RandomQueueBalancer</a>(<strong class="jxr_keyword">int</strong> queueSize) {
-<a class="jxr_linenumber" name="206" href="#206">206</a> <strong class="jxr_keyword">this</strong>.queueSize = queueSize;
-<a class="jxr_linenumber" name="207" href="#207">207</a> }
-<a class="jxr_linenumber" name="208" href="#208">208</a>
-<a class="jxr_linenumber" name="209" href="#209">209</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getNextQueue() {
-<a class="jxr_linenumber" name="210" href="#210">210</a> <strong class="jxr_keyword">return</strong> ThreadLocalRandom.current().nextInt(queueSize);
-<a class="jxr_linenumber" name="211" href="#211">211</a> }
-<a class="jxr_linenumber" name="212" href="#212">212</a> }
-<a class="jxr_linenumber" name="213" href="#213">213</a> }
+<a class="jxr_linenumber" name="94" href="#94">94</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Returns the list of request queues */</em>
+<a class="jxr_linenumber" name="95" href="#95">95</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">abstract</strong> List<BlockingQueue<CallRunner>> getQueues();
+<a class="jxr_linenumber" name="96" href="#96">96</a>
+<a class="jxr_linenumber" name="97" href="#97">97</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> startHandlers(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> port) {
+<a class="jxr_linenumber" name="98" href="#98">98</a> List<BlockingQueue<CallRunner>> callQueues = getQueues();
+<a class="jxr_linenumber" name="99" href="#99">99</a> startHandlers(<strong class="jxr_keyword">null</strong>, handlerCount, callQueues, 0, callQueues.size(), port);
+<a class="jxr_linenumber" name="100" href="#100">100</a> }
+<a class="jxr_linenumber" name="101" href="#101">101</a>
+<a class="jxr_linenumber" name="102" href="#102">102</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> startHandlers(<strong class="jxr_keyword">final</strong> String nameSuffix, <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> numHandlers,
+<a class="jxr_linenumber" name="103" href="#103">103</a> <strong class="jxr_keyword">final</strong> List<BlockingQueue<CallRunner>> callQueues,
+<a class="jxr_linenumber" name="104" href="#104">104</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> qindex, <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> qsize, <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> port) {
+<a class="jxr_linenumber" name="105" href="#105">105</a> <strong class="jxr_keyword">final</strong> String threadPrefix = name + Strings.nullToEmpty(nameSuffix);
+<a class="jxr_linenumber" name="106" href="#106">106</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < numHandlers; i++) {
+<a class="jxr_linenumber" name="107" href="#107">107</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> index = qindex + (i % qsize);
+<a class="jxr_linenumber" name="108" href="#108">108</a> Thread t = <strong class="jxr_keyword">new</strong> Thread(<strong class="jxr_keyword">new</strong> Runnable() {
+<a class="jxr_linenumber" name="109" href="#109">109</a> @Override
+<a class="jxr_linenumber" name="110" href="#110">110</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> run() {
+<a class="jxr_linenumber" name="111" href="#111">111</a> consumerLoop(callQueues.get(index));
+<a class="jxr_linenumber" name="112" href="#112">112</a> }
+<a class="jxr_linenumber" name="113" href="#113">113</a> });
+<a class="jxr_linenumber" name="114" href="#114">114</a> t.setDaemon(<strong class="jxr_keyword">true</strong>);
+<a class="jxr_linenumber" name="115" href="#115">115</a> t.setName(threadPrefix + <span class="jxr_string">"RpcServer.handler="</span> + handlers.size() +
+<a class="jxr_linenumber" name="116" href="#116">116</a> <span class="jxr_string">",queue="</span> + index + <span class="jxr_string">",port="</span> + port);
+<a class="jxr_linenumber" name="117" href="#117">117</a> t.start();
+<a class="jxr_linenumber" name="118" href="#118">118</a> LOG.debug(threadPrefix + <span class="jxr_string">" Start Handler index="</span> + handlers.size() + <span class="jxr_string">" queue="</span> + index);
+<a class="jxr_linenumber" name="119" href="#119">119</a> handlers.add(t);
+<a class="jxr_linenumber" name="120" href="#120">120</a> }
+<a class="jxr_linenumber" name="121" href="#121">121</a> }
+<a class="jxr_linenumber" name="122" href="#122">122</a>
+<a class="jxr_linenumber" name="123" href="#123">123</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> consumerLoop(<strong class="jxr_keyword">final</strong> BlockingQueue<CallRunner> myQueue) {
+<a class="jxr_linenumber" name="124" href="#124">124</a> <strong class="jxr_keyword">boolean</strong> interrupted = false;
+<a class="jxr_linenumber" name="125" href="#125">125</a> <strong class="jxr_keyword">double</strong> handlerFailureThreshhold =
+<a class="jxr_linenumber" name="126" href="#126">126</a> conf == <strong class="jxr_keyword">null</strong> ? 1.0 : conf.getDouble(HConstants.REGION_SERVER_HANDLER_ABORT_ON_ERROR_PERCENT,
+<a class="jxr_linenumber" name="127" href="#127">127</a> HConstants.DEFAULT_REGION_SERVER_HANDLER_ABORT_ON_ERROR_PERCENT);
+<a class="jxr_linenumber" name="128" href="#128">128</a> <strong class="jxr_keyword">try</strong> {
+<a class="jxr_linenumber" name="129" href="#129">129</a> <strong class="jxr_keyword">while</strong> (running) {
+<a class="jxr_linenumber" name="130" href="#130">130</a> <strong class="jxr_keyword">try</strong> {
+<a class="jxr_linenumber" name="131" href="#131">131</a> <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredRPCHandler.html">MonitoredRPCHandler</a> status = RpcServer.getStatus();
+<a class="jxr_linenumber" name="132" href="#132">132</a> <a href="../../../../../org/apache/hadoop/hbase/ipc/CallRunner.html">CallRunner</a> task = myQueue.take();
+<a class="jxr_linenumber" name="133" href="#133">133</a> task.setStatus(status);
+<a class="jxr_linenumber" name="134" href="#134">134</a> <strong class="jxr_keyword">try</strong> {
+<a class="jxr_linenumber" name="135" href="#135">135</a> activeHandlerCount.incrementAndGet();
+<a class="jxr_linenumber" name="136" href="#136">136</a> task.run();
+<a class="jxr_linenumber" name="137" href="#137">137</a> } <strong class="jxr_keyword">catch</strong> (Throwable e) {
+<a class="jxr_linenumber" name="138" href="#138">138</a> <strong class="jxr_keyword">if</strong> (e instanceof Error) {
+<a class="jxr_linenumber" name="139" href="#139">139</a> <strong class="jxr_keyword">int</strong> failedCount = failedHandlerCount.incrementAndGet();
+<a class="jxr_linenumber" name="140" href="#140">140</a> <strong class="jxr_keyword">if</strong> (handlerFailureThreshhold >= 0
+<a class="jxr_linenumber" name="141" href="#141">141</a> && failedCount > handlerCount * handlerFailureThreshhold) {
+<a class="jxr_linenumber" name="142" href="#142">142</a> String message =
+<a class="jxr_linenumber" name="143" href="#143">143</a> <span class="jxr_string">"Number of failed RpcServer handler exceeded threshhold "</span>
+<a class="jxr_linenumber" name="144" href="#144">144</a> + handlerFailureThreshhold + <span class="jxr_string">" with failed reason: "</span>
+<a class="jxr_linenumber" name="145" href="#145">145</a> + StringUtils.stringifyException(e);
+<a class="jxr_linenumber" name="146" href="#146">146</a> <strong class="jxr_keyword">if</strong> (abortable != <strong class="jxr_keyword">null</strong>) {
+<a class="jxr_linenumber" name="147" href="#147">147</a> abortable.abort(message, e);
+<a class="jxr_linenumber" name="148" href="#148">148</a> } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="149" href="#149">149</a> LOG.error(<span class="jxr_string">"Received "</span> + StringUtils.stringifyException(e)
+<a class="jxr_linenumber" name="150" href="#150">150</a> + <span class="jxr_string">" but not aborting due to abortable being null"</span>);
+<a class="jxr_linenumber" name="151" href="#151">151</a> <strong class="jxr_keyword">throw</strong> e;
+<a class="jxr_linenumber" name="152" href="#152">152</a> }
+<a class="jxr_linenumber" name="153" href="#153">153</a> } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="154" href="#154">154</a> LOG.warn(<span class="jxr_string">"RpcServer handler threads encountered errors "</span>
+<a class="jxr_linenumber" name="155" href="#155">155</a> + StringUtils.stringifyException(e));
+<a class="jxr_linenumber" name="156" href="#156">156</a> }
+<a class="jxr_linenumber" name="157" href="#157">157</a> } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="158" href="#158">158</a> LOG.warn(<span class="jxr_string">"RpcServer handler threads encountered exceptions "</span>
+<a class="jxr_linenumber" name="159" href="#159">159</a> + StringUtils.stringifyException(e));
+<a class="jxr_linenumber" name="160" href="#160">160</a> }
+<a class="jxr_linenumber" name="161" href="#161">161</a> } <strong class="jxr_keyword">finally</strong> {
+<a class="jxr_linenumber" name="162" href="#162">162</a> activeHandlerCount.decrementAndGet();
+<a class="jxr_linenumber" name="163" href="#163">163</a> }
+<a class="jxr_linenumber" name="164" href="#164">164</a> } <strong class="jxr_keyword">catch</strong> (InterruptedException e) {
+<a class="jxr_linenumber" name="165" href="#165">165</a> interrupted = <strong class="jxr_keyword">true</strong>;
+<a class="jxr_linenumber" name="166" href="#166">166</a> }
+<a class="jxr_linenumber" name="167" href="#167">167</a> }
+<a class="jxr_linenumber" name="168" href="#168">168</a> } <strong class="jxr_keyword">finally</strong> {
+<a class="jxr_linenumber" name="169" href="#169">169</a> <strong class="jxr_keyword">if</strong> (interrupted) {
+<a class="jxr_linenumber" name="170" href="#170">170</a> Thread.currentThread().interrupt();
+<a class="jxr_linenumber" name="171" href="#171">171</a> }
+<a class="jxr_linenumber" name="172" href="#172">172</a> }
+<a class="jxr_linenumber" name="173" href="#173">173</a> }
+<a class="jxr_linenumber" name="174" href="#174">174</a>
+<a class="jxr_linenumber" name="175" href="#175">175</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html">QueueBalancer</a> {
+<a class="jxr_linenumber" name="176" href="#176">176</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="177" href="#177">177</a> <em class="jxr_javadoccomment"> * @return the index of the next queue to which a request should be inserted</em>
+<a class="jxr_linenumber" name="178" href="#178">178</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="179" href="#179">179</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">int</strong> getNextQueue();
+<a class="jxr_linenumber" name="180" href="#180">180</a> }
+<a class="jxr_linenumber" name="181" href="#181">181</a>
+<a class="jxr_linenumber" name="182" href="#182">182</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html">QueueBalancer</a> getBalancer(<strong class="jxr_keyword">int</strong> queueSize) {
+<a class="jxr_linenumber" name="183" href="#183">183</a> Preconditions.checkArgument(queueSize > 0, <span class="jxr_string">"Queue size is <= 0, must be at least 1"</span>);
+<a class="jxr_linenumber" name="184" href="#184">184</a> <strong class="jxr_keyword">if</strong> (queueSize == 1) {
+<a class="jxr_linenumber" name="185" href="#185">185</a> <strong class="jxr_keyword">return</strong> ONE_QUEUE;
+<a class="jxr_linenumber" name="186" href="#186">186</a> } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="187" href="#187">187</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html">RandomQueueBalancer</a>(queueSize);
+<a class="jxr_linenumber" name="188" href="#188">188</a> }
+<a class="jxr_linenumber" name="189" href="#189">189</a> }
+<a class="jxr_linenumber" name="190" href="#190">190</a>
+<a class="jxr_linenumber" name="191" href="#191">191</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="192" href="#192">192</a> <em class="jxr_javadoccomment"> * All requests go to the first queue, at index 0</em>
+<a class="jxr_linenumber" name="193" href="#193">193</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="194" href="#194">194</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html">QueueBalancer</a> ONE_QUEUE = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html">QueueBalancer</a>() {
+<a class="jxr_linenumber" name="195" href="#195">195</a>
+<a class="jxr_linenumber" name="196" href="#196">196</a> @Override
+<a class="jxr_linenumber" name="197" href="#197">197</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getNextQueue() {
+<a class="jxr_linenumber" name="198" href="#198">198</a> <strong class="jxr_keyword">return</strong> 0;
+<a class="jxr_linenumber" name="199" href="#199">199</a> }
+<a class="jxr_linenumber" name="200" href="#200">200</a> };
+<a class="jxr_linenumber" name="201" href="#201">201</a>
+<a class="jxr_linenumber" name="202" href="#202">202</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="203" href="#203">203</a> <em class="jxr_javadoccomment"> * Queue balancer that just randomly selects a queue in the range [0, num queues).</em>
+<a class="jxr_linenumber" name="204" href="#204">204</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="205" href="#205">205</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html">RandomQueueBalancer</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html">QueueBalancer</a> {
+<a class="jxr_linenumber" name="206" href="#206">206</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> queueSize;
+<a class="jxr_linenumber" name="207" href="#207">207</a>
+<a class="jxr_linenumber" name="208" href="#208">208</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html">RandomQueueBalancer</a>(<strong class="jxr_keyword">int</strong> queueSize) {
+<a class="jxr_linenumber" name="209" href="#209">209</a> <strong class="jxr_keyword">this</strong>.queueSize = queueSize;
+<a class="jxr_linenumber" name="210" href="#210">210</a> }
+<a class="jxr_linenumber" name="211" href="#211">211</a>
+<a class="jxr_linenumber" name="212" href="#212">212</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getNextQueue() {
+<a class="jxr_linenumber" name="213" href="#213">213</a> <strong class="jxr_keyword">return</strong> ThreadLocalRandom.current().nextInt(queueSize);
+<a class="jxr_linenumber" name="214" href="#214">214</a> }
+<a class="jxr_linenumber" name="215" href="#215">215</a> }
+<a class="jxr_linenumber" name="216" href="#216">216</a>
+<a class="jxr_linenumber" name="217" href="#217">217</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="218" href="#218">218</a> <em class="jxr_javadoccomment"> * Update current soft limit for executor's call queues</em>
+<a class="jxr_linenumber" name="219" href="#219">219</a> <em class="jxr_javadoccomment"> * @param conf updated configuration</em>
+<a class="jxr_linenumber" name="220" href="#220">220</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="221" href="#221">221</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> resizeQueues(Configuration conf) {
+<a class="jxr_linenumber" name="222" href="#222">222</a> currentQueueLimit = conf.getInt(<span class="jxr_string">"hbase.ipc.server.max.callqueue.length"</span>, currentQueueLimit);
+<a class="jxr_linenumber" name="223" href="#223">223</a> }
+<a class="jxr_linenumber" name="224" href="#224">224</a> }
</pre>
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