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| <pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span><a name="line.18"></a> |
| <span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.ipc;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.ArrayList;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.Comparator;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.Locale;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.concurrent.BlockingQueue;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.concurrent.LinkedBlockingQueue;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.concurrent.ThreadLocalRandom;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.concurrent.atomic.LongAdder;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.Map;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.HashMap;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span><a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.conf.Configuration;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.Abortable;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.HConstants;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hbase.thirdparty.io.netty.util.internal.StringUtil;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.slf4j.Logger;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.slf4j.LoggerFactory;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.monitoring.MonitoredRPCHandler;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.util.BoundedPriorityBlockingQueue;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.ReflectionUtils;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.util.StringUtils;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span><a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hbase.thirdparty.com.google.common.base.Strings;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span><a name="line.47"></a> |
| <span class="sourceLineNo">048</span>/**<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * Runs the CallRunners passed here via {@link #dispatch(CallRunner)}. Subclass and add particular<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * scheduling behavior.<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> */<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>@InterfaceAudience.Private<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>public abstract class RpcExecutor {<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> private static final Logger LOG = LoggerFactory.getLogger(RpcExecutor.class);<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> protected static final int DEFAULT_CALL_QUEUE_SIZE_HARD_LIMIT = 250;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> public static final String CALL_QUEUE_HANDLER_FACTOR_CONF_KEY = "hbase.ipc.server.callqueue.handler.factor";<a name="line.57"></a> |
| <span class="sourceLineNo">058</span><a name="line.58"></a> |
| <span class="sourceLineNo">059</span> /** max delay in msec used to bound the deprioritized requests */<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> public static final String QUEUE_MAX_CALL_DELAY_CONF_KEY = "hbase.ipc.server.queue.max.call.delay";<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> /**<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * The default, 'fifo', has the least friction but is dumb. If set to 'deadline', uses a priority<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * queue and deprioritizes long-running scans. Sorting by priority comes at a cost, reduced<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> * throughput.<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> */<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> public static final String CALL_QUEUE_TYPE_CODEL_CONF_VALUE = "codel";<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> public static final String CALL_QUEUE_TYPE_DEADLINE_CONF_VALUE = "deadline";<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> public static final String CALL_QUEUE_TYPE_FIFO_CONF_VALUE = "fifo";<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> public static final String CALL_QUEUE_TYPE_CONF_KEY = "hbase.ipc.server.callqueue.type";<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> public static final String CALL_QUEUE_TYPE_CONF_DEFAULT = CALL_QUEUE_TYPE_FIFO_CONF_VALUE;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span><a name="line.72"></a> |
| <span class="sourceLineNo">073</span> // These 3 are only used by Codel executor<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> public static final String CALL_QUEUE_CODEL_TARGET_DELAY = "hbase.ipc.server.callqueue.codel.target.delay";<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> public static final String CALL_QUEUE_CODEL_INTERVAL = "hbase.ipc.server.callqueue.codel.interval";<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> public static final String CALL_QUEUE_CODEL_LIFO_THRESHOLD = "hbase.ipc.server.callqueue.codel.lifo.threshold";<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> public static final int CALL_QUEUE_CODEL_DEFAULT_TARGET_DELAY = 100;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> public static final int CALL_QUEUE_CODEL_DEFAULT_INTERVAL = 100;<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> public static final double CALL_QUEUE_CODEL_DEFAULT_LIFO_THRESHOLD = 0.8;<a name="line.80"></a> |
| <span class="sourceLineNo">081</span><a name="line.81"></a> |
| <span class="sourceLineNo">082</span> private LongAdder numGeneralCallsDropped = new LongAdder();<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> private LongAdder numLifoModeSwitches = new LongAdder();<a name="line.83"></a> |
| <span class="sourceLineNo">084</span><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> protected final int numCallQueues;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> protected final List<BlockingQueue<CallRunner>> queues;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> private final Class<? extends BlockingQueue> queueClass;<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> private final Object[] queueInitArgs;<a name="line.88"></a> |
| <span class="sourceLineNo">089</span><a name="line.89"></a> |
| <span class="sourceLineNo">090</span> private final PriorityFunction priority;<a name="line.90"></a> |
| <span class="sourceLineNo">091</span><a name="line.91"></a> |
| <span class="sourceLineNo">092</span> protected volatile int currentQueueLimit;<a name="line.92"></a> |
| <span class="sourceLineNo">093</span><a name="line.93"></a> |
| <span class="sourceLineNo">094</span> private final AtomicInteger activeHandlerCount = new AtomicInteger(0);<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> private final List<Handler> handlers;<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> private final int handlerCount;<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> private final AtomicInteger failedHandlerCount = new AtomicInteger(0);<a name="line.97"></a> |
| <span class="sourceLineNo">098</span><a name="line.98"></a> |
| <span class="sourceLineNo">099</span> private String name;<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> private boolean running;<a name="line.100"></a> |
| <span class="sourceLineNo">101</span><a name="line.101"></a> |
| <span class="sourceLineNo">102</span> private Configuration conf = null;<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> private Abortable abortable = null;<a name="line.103"></a> |
| <span class="sourceLineNo">104</span><a name="line.104"></a> |
| <span class="sourceLineNo">105</span> public RpcExecutor(final String name, final int handlerCount, final int maxQueueLength,<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> final PriorityFunction priority, final Configuration conf, final Abortable abortable) {<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> this(name, handlerCount, conf.get(CALL_QUEUE_TYPE_CONF_KEY,<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> CALL_QUEUE_TYPE_CONF_DEFAULT), maxQueueLength, priority, conf, abortable);<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> }<a name="line.109"></a> |
| <span class="sourceLineNo">110</span><a name="line.110"></a> |
| <span class="sourceLineNo">111</span> public RpcExecutor(final String name, final int handlerCount, final String callQueueType,<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> final int maxQueueLength, final PriorityFunction priority, final Configuration conf,<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> final Abortable abortable) {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> this.name = Strings.nullToEmpty(name);<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> this.conf = conf;<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> this.abortable = abortable;<a name="line.116"></a> |
| <span class="sourceLineNo">117</span><a name="line.117"></a> |
| <span class="sourceLineNo">118</span> float callQueuesHandlersFactor = this.conf.getFloat(CALL_QUEUE_HANDLER_FACTOR_CONF_KEY, 0.1f);<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> if (Float.compare(callQueuesHandlersFactor, 1.0f) > 0 ||<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> Float.compare(0.0f, callQueuesHandlersFactor) > 0) {<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> LOG.warn(CALL_QUEUE_HANDLER_FACTOR_CONF_KEY +<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> " is *ILLEGAL*, it should be in range [0.0, 1.0]");<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> // For callQueuesHandlersFactor > 1.0, we just set it 1.0f.<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> if (Float.compare(callQueuesHandlersFactor, 1.0f) > 0) {<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> LOG.warn("Set " + CALL_QUEUE_HANDLER_FACTOR_CONF_KEY + " 1.0f");<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> callQueuesHandlersFactor = 1.0f;<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> } else {<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> // But for callQueuesHandlersFactor < 0.0, following method #computeNumCallQueues<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> // will compute max(1, -x) => 1 which has same effect of default value.<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> LOG.warn("Set " + CALL_QUEUE_HANDLER_FACTOR_CONF_KEY + " default value 0.0f");<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> }<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> }<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> this.numCallQueues = computeNumCallQueues(handlerCount, callQueuesHandlersFactor);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> this.queues = new ArrayList<>(this.numCallQueues);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span><a name="line.135"></a> |
| <span class="sourceLineNo">136</span> this.handlerCount = Math.max(handlerCount, this.numCallQueues);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> this.handlers = new ArrayList<>(this.handlerCount);<a name="line.137"></a> |
| <span class="sourceLineNo">138</span><a name="line.138"></a> |
| <span class="sourceLineNo">139</span> this.priority = priority;<a name="line.139"></a> |
| <span class="sourceLineNo">140</span><a name="line.140"></a> |
| <span class="sourceLineNo">141</span> if (isDeadlineQueueType(callQueueType)) {<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> this.name += ".Deadline";<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> this.queueInitArgs = new Object[] { maxQueueLength,<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> new CallPriorityComparator(conf, this.priority) };<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> this.queueClass = BoundedPriorityBlockingQueue.class;<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> } else if (isCodelQueueType(callQueueType)) {<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> this.name += ".Codel";<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> int codelTargetDelay = conf.getInt(CALL_QUEUE_CODEL_TARGET_DELAY,<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> CALL_QUEUE_CODEL_DEFAULT_TARGET_DELAY);<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> int codelInterval = conf.getInt(CALL_QUEUE_CODEL_INTERVAL, CALL_QUEUE_CODEL_DEFAULT_INTERVAL);<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> double codelLifoThreshold = conf.getDouble(CALL_QUEUE_CODEL_LIFO_THRESHOLD,<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> CALL_QUEUE_CODEL_DEFAULT_LIFO_THRESHOLD);<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> queueInitArgs = new Object[] { maxQueueLength, codelTargetDelay, codelInterval,<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> codelLifoThreshold, numGeneralCallsDropped, numLifoModeSwitches };<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> queueClass = AdaptiveLifoCoDelCallQueue.class;<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> } else {<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> this.name += ".Fifo";<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> queueInitArgs = new Object[] { maxQueueLength };<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> queueClass = LinkedBlockingQueue.class;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> }<a name="line.160"></a> |
| <span class="sourceLineNo">161</span><a name="line.161"></a> |
| <span class="sourceLineNo">162</span> LOG.info("Instantiated {} with queueClass={}; " +<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> "numCallQueues={}, maxQueueLength={}, handlerCount={}",<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> this.name, this.queueClass, this.numCallQueues, maxQueueLength, this.handlerCount);<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> }<a name="line.165"></a> |
| <span class="sourceLineNo">166</span><a name="line.166"></a> |
| <span class="sourceLineNo">167</span> protected int computeNumCallQueues(final int handlerCount, final float callQueuesHandlersFactor) {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> return Math.max(1, Math.round(handlerCount * callQueuesHandlersFactor));<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> }<a name="line.169"></a> |
| <span class="sourceLineNo">170</span><a name="line.170"></a> |
| <span class="sourceLineNo">171</span> public Map<String, Long> getCallQueueCountsSummary() {<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> HashMap<String, Long> callQueueMethodTotalCount = new HashMap<>();<a name="line.172"></a> |
| <span class="sourceLineNo">173</span><a name="line.173"></a> |
| <span class="sourceLineNo">174</span> for(BlockingQueue<CallRunner> queue: queues) {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> for (CallRunner cr:queue) {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> RpcCall rpcCall = cr.getRpcCall();<a name="line.176"></a> |
| <span class="sourceLineNo">177</span><a name="line.177"></a> |
| <span class="sourceLineNo">178</span> String method;<a name="line.178"></a> |
| <span class="sourceLineNo">179</span><a name="line.179"></a> |
| <span class="sourceLineNo">180</span> if (null==rpcCall.getMethod() ||<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> StringUtil.isNullOrEmpty(method = rpcCall.getMethod().getName())) {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> method = "Unknown";<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> }<a name="line.183"></a> |
| <span class="sourceLineNo">184</span><a name="line.184"></a> |
| <span class="sourceLineNo">185</span> callQueueMethodTotalCount.put(method, 1+callQueueMethodTotalCount.getOrDefault(method, 0L));<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> }<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> }<a name="line.187"></a> |
| <span class="sourceLineNo">188</span><a name="line.188"></a> |
| <span class="sourceLineNo">189</span> return callQueueMethodTotalCount;<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> }<a name="line.190"></a> |
| <span class="sourceLineNo">191</span><a name="line.191"></a> |
| <span class="sourceLineNo">192</span> public Map<String, Long> getCallQueueSizeSummary() {<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> HashMap<String, Long> callQueueMethodTotalSize = new HashMap<>();<a name="line.193"></a> |
| <span class="sourceLineNo">194</span><a name="line.194"></a> |
| <span class="sourceLineNo">195</span> for(BlockingQueue<CallRunner> queue: queues) {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> for (CallRunner cr:queue) {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> RpcCall rpcCall = cr.getRpcCall();<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> String method;<a name="line.198"></a> |
| <span class="sourceLineNo">199</span><a name="line.199"></a> |
| <span class="sourceLineNo">200</span> if (null==rpcCall.getMethod() ||<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> StringUtil.isNullOrEmpty(method = rpcCall.getMethod().getName())) {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> method = "Unknown";<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> }<a name="line.203"></a> |
| <span class="sourceLineNo">204</span><a name="line.204"></a> |
| <span class="sourceLineNo">205</span> long size = rpcCall.getSize();<a name="line.205"></a> |
| <span class="sourceLineNo">206</span><a name="line.206"></a> |
| <span class="sourceLineNo">207</span> callQueueMethodTotalSize.put(method, size+callQueueMethodTotalSize.getOrDefault(method, 0L));<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> }<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> }<a name="line.209"></a> |
| <span class="sourceLineNo">210</span><a name="line.210"></a> |
| <span class="sourceLineNo">211</span> return callQueueMethodTotalSize;<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> }<a name="line.212"></a> |
| <span class="sourceLineNo">213</span><a name="line.213"></a> |
| <span class="sourceLineNo">214</span><a name="line.214"></a> |
| <span class="sourceLineNo">215</span> protected void initializeQueues(final int numQueues) {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> if (queueInitArgs.length > 0) {<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> currentQueueLimit = (int) queueInitArgs[0];<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> queueInitArgs[0] = Math.max((int) queueInitArgs[0], DEFAULT_CALL_QUEUE_SIZE_HARD_LIMIT);<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> }<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> for (int i = 0; i < numQueues; ++i) {<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> queues.add(ReflectionUtils.newInstance(queueClass, queueInitArgs));<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><a name="line.224"></a> |
| <span class="sourceLineNo">225</span> public void start(final int port) {<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> running = true;<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> startHandlers(port);<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> public void stop() {<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> running = false;<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> for (Thread handler : handlers) {<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> handler.interrupt();<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> }<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> }<a name="line.235"></a> |
| <span class="sourceLineNo">236</span><a name="line.236"></a> |
| <span class="sourceLineNo">237</span> /** Add the request to the executor queue */<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> public abstract boolean dispatch(final CallRunner callTask) throws InterruptedException;<a name="line.238"></a> |
| <span class="sourceLineNo">239</span><a name="line.239"></a> |
| <span class="sourceLineNo">240</span> /** Returns the list of request queues */<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> protected List<BlockingQueue<CallRunner>> getQueues() {<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> return queues;<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> protected void startHandlers(final int port) {<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> List<BlockingQueue<CallRunner>> callQueues = getQueues();<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> startHandlers(null, handlerCount, callQueues, 0, callQueues.size(), port, activeHandlerCount);<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> }<a name="line.248"></a> |
| <span class="sourceLineNo">249</span><a name="line.249"></a> |
| <span class="sourceLineNo">250</span> /**<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> * Override if providing alternate Handler implementation.<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> */<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> protected Handler getHandler(final String name, final double handlerFailureThreshhold,<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> final BlockingQueue<CallRunner> q, final AtomicInteger activeHandlerCount) {<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> return new Handler(name, handlerFailureThreshhold, q, activeHandlerCount);<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> }<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> * Start up our handlers.<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> */<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> protected void startHandlers(final String nameSuffix, final int numHandlers,<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> final List<BlockingQueue<CallRunner>> callQueues, final int qindex, final int qsize,<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> final int port, final AtomicInteger activeHandlerCount) {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> final String threadPrefix = name + Strings.nullToEmpty(nameSuffix);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> double handlerFailureThreshhold = conf == null ? 1.0 : conf.getDouble(<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> HConstants.REGION_SERVER_HANDLER_ABORT_ON_ERROR_PERCENT,<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> HConstants.DEFAULT_REGION_SERVER_HANDLER_ABORT_ON_ERROR_PERCENT);<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> for (int i = 0; i < numHandlers; i++) {<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> final int index = qindex + (i % qsize);<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> String name = "RpcServer." + threadPrefix + ".handler=" + handlers.size() + ",queue=" + index<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> + ",port=" + port;<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> Handler handler = getHandler(name, handlerFailureThreshhold, callQueues.get(index),<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> activeHandlerCount);<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> handler.start();<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> handlers.add(handler);<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> }<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> LOG.debug("Started handlerCount={} with threadPrefix={}, numCallQueues={}, port={}",<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> handlers.size(), threadPrefix, qsize, port);<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> }<a name="line.279"></a> |
| <span class="sourceLineNo">280</span><a name="line.280"></a> |
| <span class="sourceLineNo">281</span> /**<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> * Handler thread run the {@link CallRunner#run()} in.<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> */<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> protected class Handler extends Thread {<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> /**<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> * Q to find CallRunners to run in.<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> */<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> final BlockingQueue<CallRunner> q;<a name="line.288"></a> |
| <span class="sourceLineNo">289</span><a name="line.289"></a> |
| <span class="sourceLineNo">290</span> final double handlerFailureThreshhold;<a name="line.290"></a> |
| <span class="sourceLineNo">291</span><a name="line.291"></a> |
| <span class="sourceLineNo">292</span> // metrics (shared with other handlers)<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> final AtomicInteger activeHandlerCount;<a name="line.293"></a> |
| <span class="sourceLineNo">294</span><a name="line.294"></a> |
| <span class="sourceLineNo">295</span> Handler(final String name, final double handlerFailureThreshhold,<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> final BlockingQueue<CallRunner> q, final AtomicInteger activeHandlerCount) {<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> super(name);<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> setDaemon(true);<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> this.q = q;<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> this.handlerFailureThreshhold = handlerFailureThreshhold;<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> this.activeHandlerCount = activeHandlerCount;<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> /**<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> * @return A {@link CallRunner}<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> * @throws InterruptedException<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> */<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> protected CallRunner getCallRunner() throws InterruptedException {<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> return this.q.take();<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> }<a name="line.310"></a> |
| <span class="sourceLineNo">311</span><a name="line.311"></a> |
| <span class="sourceLineNo">312</span> @Override<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> public void run() {<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> boolean interrupted = false;<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> try {<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> while (running) {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> try {<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> run(getCallRunner());<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> } catch (InterruptedException e) {<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> interrupted = true;<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> }<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> }<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> } catch (Exception e) {<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> LOG.warn(e.toString(), e);<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> throw e;<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> } finally {<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> if (interrupted) {<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> Thread.currentThread().interrupt();<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> }<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> }<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> }<a name="line.331"></a> |
| <span class="sourceLineNo">332</span><a name="line.332"></a> |
| <span class="sourceLineNo">333</span> private void run(CallRunner cr) {<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> MonitoredRPCHandler status = RpcServer.getStatus();<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> cr.setStatus(status);<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> try {<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> this.activeHandlerCount.incrementAndGet();<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> cr.run();<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> } catch (Throwable e) {<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> if (e instanceof Error) {<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> int failedCount = failedHandlerCount.incrementAndGet();<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> if (this.handlerFailureThreshhold >= 0<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> && failedCount > handlerCount * this.handlerFailureThreshhold) {<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> String message = "Number of failed RpcServer handler runs exceeded threshhold "<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> + this.handlerFailureThreshhold + "; reason: " + StringUtils.stringifyException(e);<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> if (abortable != null) {<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> abortable.abort(message, e);<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> } else {<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> LOG.error("Error but can't abort because abortable is null: "<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> + StringUtils.stringifyException(e));<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> throw e;<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> }<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> } else {<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> LOG.warn("Handler errors " + StringUtils.stringifyException(e));<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> }<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> } else {<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> LOG.warn("Handler exception " + StringUtils.stringifyException(e));<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> }<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> } finally {<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> this.activeHandlerCount.decrementAndGet();<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> }<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> }<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> }<a name="line.363"></a> |
| <span class="sourceLineNo">364</span><a name="line.364"></a> |
| <span class="sourceLineNo">365</span> public static abstract class QueueBalancer {<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> /**<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> * @return the index of the next queue to which a request should be inserted<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> */<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> public abstract int getNextQueue();<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> }<a name="line.370"></a> |
| <span class="sourceLineNo">371</span><a name="line.371"></a> |
| <span class="sourceLineNo">372</span> public static QueueBalancer getBalancer(int queueSize) {<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> Preconditions.checkArgument(queueSize > 0, "Queue size is <= 0, must be at least 1");<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> if (queueSize == 1) {<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> return ONE_QUEUE;<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> } else {<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> return new RandomQueueBalancer(queueSize);<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> }<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> }<a name="line.379"></a> |
| <span class="sourceLineNo">380</span><a name="line.380"></a> |
| <span class="sourceLineNo">381</span> /**<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> * All requests go to the first queue, at index 0<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> */<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> private static QueueBalancer ONE_QUEUE = new QueueBalancer() {<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> @Override<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> public int getNextQueue() {<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> return 0;<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> }<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> };<a name="line.389"></a> |
| <span class="sourceLineNo">390</span><a name="line.390"></a> |
| <span class="sourceLineNo">391</span> /**<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> * Queue balancer that just randomly selects a queue in the range [0, num queues).<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> */<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> private static class RandomQueueBalancer extends QueueBalancer {<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> private final int queueSize;<a name="line.395"></a> |
| <span class="sourceLineNo">396</span><a name="line.396"></a> |
| <span class="sourceLineNo">397</span> public RandomQueueBalancer(int queueSize) {<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> this.queueSize = queueSize;<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> }<a name="line.399"></a> |
| <span class="sourceLineNo">400</span><a name="line.400"></a> |
| <span class="sourceLineNo">401</span> @Override<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> public int getNextQueue() {<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> return ThreadLocalRandom.current().nextInt(queueSize);<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> }<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> }<a name="line.405"></a> |
| <span class="sourceLineNo">406</span><a name="line.406"></a> |
| <span class="sourceLineNo">407</span> /**<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> * Comparator used by the "normal callQueue" if DEADLINE_CALL_QUEUE_CONF_KEY is set to true. It<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> * uses the calculated "deadline" e.g. to deprioritize long-running job If multiple requests have<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> * the same deadline BoundedPriorityBlockingQueue will order them in FIFO (first-in-first-out)<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> * manner.<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> */<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> private static class CallPriorityComparator implements Comparator<CallRunner> {<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> private final static int DEFAULT_MAX_CALL_DELAY = 5000;<a name="line.414"></a> |
| <span class="sourceLineNo">415</span><a name="line.415"></a> |
| <span class="sourceLineNo">416</span> private final PriorityFunction priority;<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> private final int maxDelay;<a name="line.417"></a> |
| <span class="sourceLineNo">418</span><a name="line.418"></a> |
| <span class="sourceLineNo">419</span> public CallPriorityComparator(final Configuration conf, final PriorityFunction priority) {<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> this.priority = priority;<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> this.maxDelay = conf.getInt(QUEUE_MAX_CALL_DELAY_CONF_KEY, DEFAULT_MAX_CALL_DELAY);<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> }<a name="line.422"></a> |
| <span class="sourceLineNo">423</span><a name="line.423"></a> |
| <span class="sourceLineNo">424</span> @Override<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> public int compare(CallRunner a, CallRunner b) {<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> RpcCall callA = a.getRpcCall();<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> RpcCall callB = b.getRpcCall();<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> long deadlineA = priority.getDeadline(callA.getHeader(), callA.getParam());<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> long deadlineB = priority.getDeadline(callB.getHeader(), callB.getParam());<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> deadlineA = callA.getReceiveTime() + Math.min(deadlineA, maxDelay);<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> deadlineB = callB.getReceiveTime() + Math.min(deadlineB, maxDelay);<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> return Long.compare(deadlineA, deadlineB);<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> }<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> }<a name="line.434"></a> |
| <span class="sourceLineNo">435</span><a name="line.435"></a> |
| <span class="sourceLineNo">436</span> public static boolean isDeadlineQueueType(final String callQueueType) {<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> return callQueueType.equals(CALL_QUEUE_TYPE_DEADLINE_CONF_VALUE);<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> }<a name="line.438"></a> |
| <span class="sourceLineNo">439</span><a name="line.439"></a> |
| <span class="sourceLineNo">440</span> public static boolean isCodelQueueType(final String callQueueType) {<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> return callQueueType.equals(CALL_QUEUE_TYPE_CODEL_CONF_VALUE);<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> }<a name="line.442"></a> |
| <span class="sourceLineNo">443</span><a name="line.443"></a> |
| <span class="sourceLineNo">444</span> public static boolean isFifoQueueType(final String callQueueType) {<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> return callQueueType.equals(CALL_QUEUE_TYPE_FIFO_CONF_VALUE);<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> }<a name="line.446"></a> |
| <span class="sourceLineNo">447</span><a name="line.447"></a> |
| <span class="sourceLineNo">448</span> public long getNumGeneralCallsDropped() {<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> return numGeneralCallsDropped.longValue();<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> }<a name="line.450"></a> |
| <span class="sourceLineNo">451</span><a name="line.451"></a> |
| <span class="sourceLineNo">452</span> public long getNumLifoModeSwitches() {<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> return numLifoModeSwitches.longValue();<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> }<a name="line.454"></a> |
| <span class="sourceLineNo">455</span><a name="line.455"></a> |
| <span class="sourceLineNo">456</span> public int getActiveHandlerCount() {<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> return activeHandlerCount.get();<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> }<a name="line.458"></a> |
| <span class="sourceLineNo">459</span><a name="line.459"></a> |
| <span class="sourceLineNo">460</span> public int getActiveWriteHandlerCount() {<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> return 0;<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> }<a name="line.462"></a> |
| <span class="sourceLineNo">463</span><a name="line.463"></a> |
| <span class="sourceLineNo">464</span> public int getActiveReadHandlerCount() {<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> return 0;<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> }<a name="line.466"></a> |
| <span class="sourceLineNo">467</span><a name="line.467"></a> |
| <span class="sourceLineNo">468</span> public int getActiveScanHandlerCount() {<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> return 0;<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> }<a name="line.470"></a> |
| <span class="sourceLineNo">471</span><a name="line.471"></a> |
| <span class="sourceLineNo">472</span> /** Returns the length of the pending queue */<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> public int getQueueLength() {<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> int length = 0;<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> for (final BlockingQueue<CallRunner> queue: queues) {<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> length += queue.size();<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> }<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> return length;<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> }<a name="line.479"></a> |
| <span class="sourceLineNo">480</span><a name="line.480"></a> |
| <span class="sourceLineNo">481</span> public int getReadQueueLength() {<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> return 0;<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> }<a name="line.483"></a> |
| <span class="sourceLineNo">484</span><a name="line.484"></a> |
| <span class="sourceLineNo">485</span> public int getScanQueueLength() {<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> return 0;<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> }<a name="line.487"></a> |
| <span class="sourceLineNo">488</span><a name="line.488"></a> |
| <span class="sourceLineNo">489</span> public int getWriteQueueLength() {<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> return 0;<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> }<a name="line.491"></a> |
| <span class="sourceLineNo">492</span><a name="line.492"></a> |
| <span class="sourceLineNo">493</span> public String getName() {<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> return this.name;<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> }<a name="line.495"></a> |
| <span class="sourceLineNo">496</span><a name="line.496"></a> |
| <span class="sourceLineNo">497</span> /**<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> * Update current soft limit for executor's call queues<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> * @param conf updated configuration<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> */<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> public void resizeQueues(Configuration conf) {<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> String configKey = RpcScheduler.IPC_SERVER_MAX_CALLQUEUE_LENGTH;<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> if (name != null) {<a name="line.503"></a> |
| <span class="sourceLineNo">504</span> if (name.toLowerCase(Locale.ROOT).contains("priority")) {<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> configKey = RpcScheduler.IPC_SERVER_PRIORITY_MAX_CALLQUEUE_LENGTH;<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> } else if (name.toLowerCase(Locale.ROOT).contains("replication")) {<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> configKey = RpcScheduler.IPC_SERVER_REPLICATION_MAX_CALLQUEUE_LENGTH;<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> }<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> }<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> currentQueueLimit = conf.getInt(configKey, currentQueueLimit);<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> }<a name="line.511"></a> |
| <span class="sourceLineNo">512</span><a name="line.512"></a> |
| <span class="sourceLineNo">513</span> public void onConfigurationChange(Configuration conf) {<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> // update CoDel Scheduler tunables<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> int codelTargetDelay = conf.getInt(CALL_QUEUE_CODEL_TARGET_DELAY,<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> CALL_QUEUE_CODEL_DEFAULT_TARGET_DELAY);<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> int codelInterval = conf.getInt(CALL_QUEUE_CODEL_INTERVAL, CALL_QUEUE_CODEL_DEFAULT_INTERVAL);<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> double codelLifoThreshold = conf.getDouble(CALL_QUEUE_CODEL_LIFO_THRESHOLD,<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> CALL_QUEUE_CODEL_DEFAULT_LIFO_THRESHOLD);<a name="line.519"></a> |
| <span class="sourceLineNo">520</span><a name="line.520"></a> |
| <span class="sourceLineNo">521</span> for (BlockingQueue<CallRunner> queue : queues) {<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> if (queue instanceof AdaptiveLifoCoDelCallQueue) {<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> ((AdaptiveLifoCoDelCallQueue) queue).updateTunables(codelTargetDelay, codelInterval,<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> codelLifoThreshold);<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> }<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> }<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> }<a name="line.527"></a> |
| <span class="sourceLineNo">528</span>}<a name="line.528"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
