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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> *<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * or more contributor license agreements. See the NOTICE file<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * regarding copyright ownership. The ASF licenses this file<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * with the License. You may obtain a copy of the License at<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> *<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> *<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * See the License for the specific language governing permissions and<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * limitations under the License.<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.client;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.InterruptedIOException;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.ArrayList;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.Collection;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.HashMap;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.HashSet;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.List;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.Map;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.Set;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.TreeSet;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.util.concurrent.ConcurrentMap;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import java.util.concurrent.ConcurrentSkipListMap;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import java.util.function.Consumer;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span><a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.conf.Configuration;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.HConstants;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.HRegionLocation;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.ServerName;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.yetus.audience.InterfaceStability;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.slf4j.Logger;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.slf4j.LoggerFactory;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import static org.apache.hadoop.hbase.util.ConcurrentMapUtils.computeIfAbsent;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.util.EnvironmentEdge;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span>/**<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * Holds back the requests if they reach any thresholds.<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> */<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>@InterfaceAudience.Private<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>@InterfaceStability.Evolving<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>class SimpleRequestController implements RequestController {<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> private static final Logger LOG = LoggerFactory.getLogger(SimpleRequestController.class);<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> /**<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * The maximum heap size for each request.<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> */<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> public static final String HBASE_CLIENT_MAX_PERREQUEST_HEAPSIZE = "hbase.client.max.perrequest.heapsize";<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> /**<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * Default value of {@link #HBASE_CLIENT_MAX_PERREQUEST_HEAPSIZE}.<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> */<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> @VisibleForTesting<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> static final long DEFAULT_HBASE_CLIENT_MAX_PERREQUEST_HEAPSIZE = 4194304;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> /**<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * The maximum number of rows for each request.<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> */<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> public static final String HBASE_CLIENT_MAX_PERREQUEST_ROWS = "hbase.client.max.perrequest.rows";<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> /**<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> * Default value of {@link #HBASE_CLIENT_MAX_PERREQUEST_ROWS}.<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> */<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> @VisibleForTesting<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> static final long DEFAULT_HBASE_CLIENT_MAX_PERREQUEST_ROWS = 2048;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span><a name="line.78"></a> |
| <span class="sourceLineNo">079</span> /**<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * The maximum size of submit.<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> */<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> public static final String HBASE_CLIENT_MAX_SUBMIT_HEAPSIZE = "hbase.client.max.submit.heapsize";<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> /**<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> * Default value of {@link #HBASE_CLIENT_MAX_SUBMIT_HEAPSIZE}.<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> */<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> @VisibleForTesting<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> static final long DEFAULT_HBASE_CLIENT_MAX_SUBMIT_HEAPSIZE = DEFAULT_HBASE_CLIENT_MAX_PERREQUEST_HEAPSIZE;<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> @VisibleForTesting<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> final AtomicLong tasksInProgress = new AtomicLong(0);<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> @VisibleForTesting<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> final ConcurrentMap<byte[], AtomicInteger> taskCounterPerRegion<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> = new ConcurrentSkipListMap<>(Bytes.BYTES_COMPARATOR);<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> @VisibleForTesting<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> final ConcurrentMap<ServerName, AtomicInteger> taskCounterPerServer = new ConcurrentHashMap<>();<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> /**<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> * The number of tasks simultaneously executed on the cluster.<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> */<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> private final int maxTotalConcurrentTasks;<a name="line.98"></a> |
| <span class="sourceLineNo">099</span><a name="line.99"></a> |
| <span class="sourceLineNo">100</span> /**<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> * The maximum heap size for each request.<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> */<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> private final long maxHeapSizePerRequest;<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> /**<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> * The maximum number of rows for each request.<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> */<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> private final long maxRowsPerRequest;<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> private final long maxHeapSizeSubmit;<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> /**<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> * The number of tasks we run in parallel on a single region. With 1 (the<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> * default) , we ensure that the ordering of the queries is respected: we<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> * don't start a set of operations on a region before the previous one is<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> * done. As well, this limits the pressure we put on the region server.<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> */<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> @VisibleForTesting<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> final int maxConcurrentTasksPerRegion;<a name="line.116"></a> |
| <span class="sourceLineNo">117</span><a name="line.117"></a> |
| <span class="sourceLineNo">118</span> /**<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> * The number of task simultaneously executed on a single region server.<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> */<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> @VisibleForTesting<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> final int maxConcurrentTasksPerServer;<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> private final int thresholdToLogUndoneTaskDetails;<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> public static final String THRESHOLD_TO_LOG_UNDONE_TASK_DETAILS =<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> "hbase.client.threshold.log.details";<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> private static final int DEFAULT_THRESHOLD_TO_LOG_UNDONE_TASK_DETAILS = 10;<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> public static final String THRESHOLD_TO_LOG_REGION_DETAILS =<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> "hbase.client.threshold.log.region.details";<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> private static final int DEFAULT_THRESHOLD_TO_LOG_REGION_DETAILS = 2;<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> private final int thresholdToLogRegionDetails;<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> SimpleRequestController(final Configuration conf) {<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> this.maxTotalConcurrentTasks = checkAndGet(conf,<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> HConstants.HBASE_CLIENT_MAX_TOTAL_TASKS,<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> HConstants.DEFAULT_HBASE_CLIENT_MAX_TOTAL_TASKS);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> this.maxConcurrentTasksPerServer = checkAndGet(conf,<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> HConstants.HBASE_CLIENT_MAX_PERSERVER_TASKS,<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> HConstants.DEFAULT_HBASE_CLIENT_MAX_PERSERVER_TASKS);<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> this.maxConcurrentTasksPerRegion = checkAndGet(conf,<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> HConstants.HBASE_CLIENT_MAX_PERREGION_TASKS,<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> HConstants.DEFAULT_HBASE_CLIENT_MAX_PERREGION_TASKS);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> this.maxHeapSizePerRequest = checkAndGet(conf,<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> HBASE_CLIENT_MAX_PERREQUEST_HEAPSIZE,<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> DEFAULT_HBASE_CLIENT_MAX_PERREQUEST_HEAPSIZE);<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> this.maxRowsPerRequest = checkAndGet(conf,<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> HBASE_CLIENT_MAX_PERREQUEST_ROWS,<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> DEFAULT_HBASE_CLIENT_MAX_PERREQUEST_ROWS);<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> this.maxHeapSizeSubmit = checkAndGet(conf,<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> HBASE_CLIENT_MAX_SUBMIT_HEAPSIZE,<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> DEFAULT_HBASE_CLIENT_MAX_SUBMIT_HEAPSIZE);<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> this.thresholdToLogUndoneTaskDetails = conf.getInt(<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> THRESHOLD_TO_LOG_UNDONE_TASK_DETAILS,<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> DEFAULT_THRESHOLD_TO_LOG_UNDONE_TASK_DETAILS);<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> this.thresholdToLogRegionDetails = conf.getInt(<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> THRESHOLD_TO_LOG_REGION_DETAILS,<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> DEFAULT_THRESHOLD_TO_LOG_REGION_DETAILS);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> }<a name="line.156"></a> |
| <span class="sourceLineNo">157</span><a name="line.157"></a> |
| <span class="sourceLineNo">158</span> private static int checkAndGet(Configuration conf, String key, int defaultValue) {<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> int value = conf.getInt(key, defaultValue);<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> if (value <= 0) {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> throw new IllegalArgumentException(key + "=" + value);<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> }<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> return value;<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span><a name="line.165"></a> |
| <span class="sourceLineNo">166</span> private static long checkAndGet(Configuration conf, String key, long defaultValue) {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> long value = conf.getLong(key, defaultValue);<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> if (value <= 0) {<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> throw new IllegalArgumentException(key + "=" + value);<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> }<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> return value;<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> }<a name="line.172"></a> |
| <span class="sourceLineNo">173</span><a name="line.173"></a> |
| <span class="sourceLineNo">174</span> @VisibleForTesting<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> static Checker newChecker(List<RowChecker> checkers) {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> return new Checker() {<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> private boolean isEnd = false;<a name="line.177"></a> |
| <span class="sourceLineNo">178</span><a name="line.178"></a> |
| <span class="sourceLineNo">179</span> @Override<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> public ReturnCode canTakeRow(HRegionLocation loc, Row row) {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> if (isEnd) {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> return ReturnCode.END;<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> }<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> long heapSizeOfRow = (row instanceof Mutation) ? ((Mutation) row).heapSize() : 0;<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> ReturnCode code = ReturnCode.INCLUDE;<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> for (RowChecker checker : checkers) {<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> switch (checker.canTakeOperation(loc, heapSizeOfRow)) {<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> case END:<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> isEnd = true;<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> code = ReturnCode.END;<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> break;<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> case SKIP:<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> code = ReturnCode.SKIP;<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> break;<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> case INCLUDE:<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> default:<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> break;<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> }<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> if (code == ReturnCode.END) {<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> break;<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> }<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> }<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> for (RowChecker checker : checkers) {<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> checker.notifyFinal(code, loc, heapSizeOfRow);<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> }<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> return code;<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> }<a name="line.207"></a> |
| <span class="sourceLineNo">208</span><a name="line.208"></a> |
| <span class="sourceLineNo">209</span> @Override<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> public void reset() throws InterruptedIOException {<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> isEnd = false;<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> InterruptedIOException e = null;<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> for (RowChecker checker : checkers) {<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> try {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> checker.reset();<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> } catch (InterruptedIOException ex) {<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> e = ex;<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> }<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> }<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> if (e != null) {<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> throw e;<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> }<a name="line.225"></a> |
| <span class="sourceLineNo">226</span><a name="line.226"></a> |
| <span class="sourceLineNo">227</span> @Override<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> public Checker newChecker() {<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> List<RowChecker> checkers = new ArrayList<>(4);<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> checkers.add(new TaskCountChecker(maxTotalConcurrentTasks,<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> maxConcurrentTasksPerServer,<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> maxConcurrentTasksPerRegion,<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> tasksInProgress,<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> taskCounterPerServer,<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> taskCounterPerRegion));<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> checkers.add(new RequestHeapSizeChecker(maxHeapSizePerRequest));<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> checkers.add(new SubmittedSizeChecker(maxHeapSizeSubmit));<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> checkers.add(new RequestRowsChecker(maxRowsPerRequest));<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> return newChecker(checkers);<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> }<a name="line.240"></a> |
| <span class="sourceLineNo">241</span><a name="line.241"></a> |
| <span class="sourceLineNo">242</span> @Override<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> public void incTaskCounters(Collection<byte[]> regions, ServerName sn) {<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> tasksInProgress.incrementAndGet();<a name="line.244"></a> |
| <span class="sourceLineNo">245</span><a name="line.245"></a> |
| <span class="sourceLineNo">246</span> computeIfAbsent(taskCounterPerServer, sn, AtomicInteger::new).incrementAndGet();<a name="line.246"></a> |
| <span class="sourceLineNo">247</span><a name="line.247"></a> |
| <span class="sourceLineNo">248</span> regions.forEach((regBytes)<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> -> computeIfAbsent(taskCounterPerRegion, regBytes, AtomicInteger::new).incrementAndGet()<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> );<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span><a name="line.252"></a> |
| <span class="sourceLineNo">253</span> @Override<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> public void decTaskCounters(Collection<byte[]> regions, ServerName sn) {<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> regions.forEach(regBytes -> {<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> AtomicInteger regionCnt = taskCounterPerRegion.get(regBytes);<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> regionCnt.decrementAndGet();<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> });<a name="line.258"></a> |
| <span class="sourceLineNo">259</span><a name="line.259"></a> |
| <span class="sourceLineNo">260</span> taskCounterPerServer.get(sn).decrementAndGet();<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> tasksInProgress.decrementAndGet();<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> synchronized (tasksInProgress) {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> tasksInProgress.notifyAll();<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> }<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span><a name="line.266"></a> |
| <span class="sourceLineNo">267</span> @Override<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> public long getNumberOfTasksInProgress() {<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> return tasksInProgress.get();<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> }<a name="line.270"></a> |
| <span class="sourceLineNo">271</span><a name="line.271"></a> |
| <span class="sourceLineNo">272</span> @Override<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> public void waitForMaximumCurrentTasks(long max, long id,<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> int periodToTrigger, Consumer<Long> trigger) throws InterruptedIOException {<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> assert max >= 0;<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> long lastLog = EnvironmentEdgeManager.currentTime();<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> long currentInProgress, oldInProgress = Long.MAX_VALUE;<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> while ((currentInProgress = tasksInProgress.get()) > max) {<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> if (oldInProgress != currentInProgress) { // Wait for in progress to change.<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> long now = EnvironmentEdgeManager.currentTime();<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> if (now > lastLog + periodToTrigger) {<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> lastLog = now;<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> if (trigger != null) {<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> trigger.accept(currentInProgress);<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> }<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> logDetailsOfUndoneTasks(currentInProgress);<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> }<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> }<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> oldInProgress = currentInProgress;<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> try {<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> synchronized (tasksInProgress) {<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> if (tasksInProgress.get() == oldInProgress) {<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> tasksInProgress.wait(10);<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> }<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> }<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> } catch (InterruptedException e) {<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> throw new InterruptedIOException("#" + id + ", interrupted." +<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> " currentNumberOfTask=" + currentInProgress);<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> }<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> }<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> }<a name="line.301"></a> |
| <span class="sourceLineNo">302</span><a name="line.302"></a> |
| <span class="sourceLineNo">303</span> private void logDetailsOfUndoneTasks(long taskInProgress) {<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> if (taskInProgress <= thresholdToLogUndoneTaskDetails) {<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> ArrayList<ServerName> servers = new ArrayList<>();<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> for (Map.Entry<ServerName, AtomicInteger> entry : taskCounterPerServer.entrySet()) {<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> if (entry.getValue().get() > 0) {<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> servers.add(entry.getKey());<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> }<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> }<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> LOG.info("Left over " + taskInProgress + " task(s) are processed on server(s): " + servers);<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> }<a name="line.312"></a> |
| <span class="sourceLineNo">313</span><a name="line.313"></a> |
| <span class="sourceLineNo">314</span> if (taskInProgress <= thresholdToLogRegionDetails) {<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> ArrayList<String> regions = new ArrayList<>();<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> for (Map.Entry<byte[], AtomicInteger> entry : taskCounterPerRegion.entrySet()) {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> if (entry.getValue().get() > 0) {<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> regions.add(Bytes.toString(entry.getKey()));<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> }<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> }<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> LOG.info("Regions against which left over task(s) are processed: " + regions);<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> }<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> }<a name="line.323"></a> |
| <span class="sourceLineNo">324</span><a name="line.324"></a> |
| <span class="sourceLineNo">325</span> @Override<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> public void waitForFreeSlot(long id, int periodToTrigger, Consumer<Long> trigger) throws InterruptedIOException {<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> waitForMaximumCurrentTasks(maxTotalConcurrentTasks - 1, id, periodToTrigger, trigger);<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> }<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> * limit the heapsize of total submitted data. Reduce the limit of heapsize<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> * for submitting quickly if there is no running task.<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> */<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> @VisibleForTesting<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> static class SubmittedSizeChecker implements RowChecker {<a name="line.335"></a> |
| <span class="sourceLineNo">336</span><a name="line.336"></a> |
| <span class="sourceLineNo">337</span> private final long maxHeapSizeSubmit;<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> private long heapSize = 0;<a name="line.338"></a> |
| <span class="sourceLineNo">339</span><a name="line.339"></a> |
| <span class="sourceLineNo">340</span> SubmittedSizeChecker(final long maxHeapSizeSubmit) {<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> this.maxHeapSizeSubmit = maxHeapSizeSubmit;<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> }<a name="line.342"></a> |
| <span class="sourceLineNo">343</span><a name="line.343"></a> |
| <span class="sourceLineNo">344</span> @Override<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> public ReturnCode canTakeOperation(HRegionLocation loc, long heapSizeOfRow) {<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> if (heapSize >= maxHeapSizeSubmit) {<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> return ReturnCode.END;<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> }<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> return ReturnCode.INCLUDE;<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> }<a name="line.350"></a> |
| <span class="sourceLineNo">351</span><a name="line.351"></a> |
| <span class="sourceLineNo">352</span> @Override<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> public void notifyFinal(ReturnCode code, HRegionLocation loc, long heapSizeOfRow) {<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> if (code == ReturnCode.INCLUDE) {<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> heapSize += heapSizeOfRow;<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> }<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> }<a name="line.357"></a> |
| <span class="sourceLineNo">358</span><a name="line.358"></a> |
| <span class="sourceLineNo">359</span> @Override<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> public void reset() {<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> heapSize = 0;<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> /**<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> * limit the max number of tasks in an AsyncProcess.<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> */<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> @VisibleForTesting<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> static class TaskCountChecker implements RowChecker {<a name="line.369"></a> |
| <span class="sourceLineNo">370</span><a name="line.370"></a> |
| <span class="sourceLineNo">371</span> private static final long MAX_WAITING_TIME = 1000; //ms<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> private final Set<RegionInfo> regionsIncluded = new HashSet<>();<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> private final Set<ServerName> serversIncluded = new HashSet<>();<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> private final int maxConcurrentTasksPerRegion;<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> private final int maxTotalConcurrentTasks;<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> private final int maxConcurrentTasksPerServer;<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> private final Map<byte[], AtomicInteger> taskCounterPerRegion;<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> private final Map<ServerName, AtomicInteger> taskCounterPerServer;<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> private final Set<byte[]> busyRegions = new TreeSet<>(Bytes.BYTES_COMPARATOR);<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> private final AtomicLong tasksInProgress;<a name="line.380"></a> |
| <span class="sourceLineNo">381</span><a name="line.381"></a> |
| <span class="sourceLineNo">382</span> TaskCountChecker(final int maxTotalConcurrentTasks,<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> final int maxConcurrentTasksPerServer,<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> final int maxConcurrentTasksPerRegion,<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> final AtomicLong tasksInProgress,<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> final Map<ServerName, AtomicInteger> taskCounterPerServer,<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> final Map<byte[], AtomicInteger> taskCounterPerRegion) {<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> this.maxTotalConcurrentTasks = maxTotalConcurrentTasks;<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> this.maxConcurrentTasksPerRegion = maxConcurrentTasksPerRegion;<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> this.maxConcurrentTasksPerServer = maxConcurrentTasksPerServer;<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> this.taskCounterPerRegion = taskCounterPerRegion;<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> this.taskCounterPerServer = taskCounterPerServer;<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> this.tasksInProgress = tasksInProgress;<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> }<a name="line.394"></a> |
| <span class="sourceLineNo">395</span><a name="line.395"></a> |
| <span class="sourceLineNo">396</span> @Override<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> public void reset() throws InterruptedIOException {<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> // prevent the busy-waiting<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> waitForRegion();<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> regionsIncluded.clear();<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> serversIncluded.clear();<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> busyRegions.clear();<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> }<a name="line.403"></a> |
| <span class="sourceLineNo">404</span><a name="line.404"></a> |
| <span class="sourceLineNo">405</span> private void waitForRegion() throws InterruptedIOException {<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> if (busyRegions.isEmpty()) {<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> return;<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> }<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> EnvironmentEdge ee = EnvironmentEdgeManager.getDelegate();<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> final long start = ee.currentTime();<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> while ((ee.currentTime() - start) <= MAX_WAITING_TIME) {<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> for (byte[] region : busyRegions) {<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> AtomicInteger count = taskCounterPerRegion.get(region);<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> if (count == null || count.get() < maxConcurrentTasksPerRegion) {<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> return;<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> }<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> }<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> try {<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> synchronized (tasksInProgress) {<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> tasksInProgress.wait(10);<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> }<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> } catch (InterruptedException e) {<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> throw new InterruptedIOException("Interrupted."<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> + " tasksInProgress=" + tasksInProgress);<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> }<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> }<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> }<a name="line.427"></a> |
| <span class="sourceLineNo">428</span><a name="line.428"></a> |
| <span class="sourceLineNo">429</span> /**<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> * 1) check the regions is allowed. 2) check the concurrent tasks for<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> * regions. 3) check the total concurrent tasks. 4) check the concurrent<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> * tasks for server.<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> *<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> * @param loc the destination of data<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> * @param heapSizeOfRow the data size<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> * @return either Include {@link RequestController.ReturnCode} or skip<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> * {@link RequestController.ReturnCode}<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> */<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> @Override<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> public ReturnCode canTakeOperation(HRegionLocation loc, long heapSizeOfRow) {<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> RegionInfo regionInfo = loc.getRegion();<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> if (regionsIncluded.contains(regionInfo)) {<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> // We already know what to do with this region.<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> return ReturnCode.INCLUDE;<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> }<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> AtomicInteger regionCnt = taskCounterPerRegion.get(loc.getRegion().getRegionName());<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> if (regionCnt != null && regionCnt.get() >= maxConcurrentTasksPerRegion) {<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> // Too many tasks on this region already.<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> return ReturnCode.SKIP;<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> }<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> int newServers = serversIncluded.size()<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> + (serversIncluded.contains(loc.getServerName()) ? 0 : 1);<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> if ((newServers + tasksInProgress.get()) > maxTotalConcurrentTasks) {<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> // Too many tasks.<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> return ReturnCode.SKIP;<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> }<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> AtomicInteger serverCnt = taskCounterPerServer.get(loc.getServerName());<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> if (serverCnt != null && serverCnt.get() >= maxConcurrentTasksPerServer) {<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> // Too many tasks for this individual server<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> return ReturnCode.SKIP;<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> }<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> return ReturnCode.INCLUDE;<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> }<a name="line.463"></a> |
| <span class="sourceLineNo">464</span><a name="line.464"></a> |
| <span class="sourceLineNo">465</span> @Override<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> public void notifyFinal(ReturnCode code, HRegionLocation loc, long heapSizeOfRow) {<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> if (code == ReturnCode.INCLUDE) {<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> regionsIncluded.add(loc.getRegion());<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> serversIncluded.add(loc.getServerName());<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> }<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> busyRegions.add(loc.getRegion().getRegionName());<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> }<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> }<a name="line.473"></a> |
| <span class="sourceLineNo">474</span><a name="line.474"></a> |
| <span class="sourceLineNo">475</span> /**<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> * limit the number of rows for each request.<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> */<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> @VisibleForTesting<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> static class RequestRowsChecker implements RowChecker {<a name="line.479"></a> |
| <span class="sourceLineNo">480</span><a name="line.480"></a> |
| <span class="sourceLineNo">481</span> private final long maxRowsPerRequest;<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> private final Map<ServerName, Long> serverRows = new HashMap<>();<a name="line.482"></a> |
| <span class="sourceLineNo">483</span><a name="line.483"></a> |
| <span class="sourceLineNo">484</span> RequestRowsChecker(final long maxRowsPerRequest) {<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> this.maxRowsPerRequest = maxRowsPerRequest;<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> }<a name="line.486"></a> |
| <span class="sourceLineNo">487</span><a name="line.487"></a> |
| <span class="sourceLineNo">488</span> @Override<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> public void reset() {<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> serverRows.clear();<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> @Override<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> public ReturnCode canTakeOperation(HRegionLocation loc, long heapSizeOfRow) {<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> long currentRows = serverRows.containsKey(loc.getServerName())<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> ? serverRows.get(loc.getServerName()) : 0L;<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> // accept at least one row<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> if (currentRows == 0 || currentRows < maxRowsPerRequest) {<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> return ReturnCode.INCLUDE;<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> }<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> return ReturnCode.SKIP;<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> }<a name="line.502"></a> |
| <span class="sourceLineNo">503</span><a name="line.503"></a> |
| <span class="sourceLineNo">504</span> @Override<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> public void notifyFinal(ReturnCode code, HRegionLocation loc, long heapSizeOfRow) {<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> if (code == ReturnCode.INCLUDE) {<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> long currentRows = serverRows.containsKey(loc.getServerName())<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> ? serverRows.get(loc.getServerName()) : 0L;<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> serverRows.put(loc.getServerName(), currentRows + 1);<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> }<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><a name="line.513"></a> |
| <span class="sourceLineNo">514</span> /**<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> * limit the heap size for each request.<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> */<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> @VisibleForTesting<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> static class RequestHeapSizeChecker implements RowChecker {<a name="line.518"></a> |
| <span class="sourceLineNo">519</span><a name="line.519"></a> |
| <span class="sourceLineNo">520</span> private final long maxHeapSizePerRequest;<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> private final Map<ServerName, Long> serverRequestSizes = new HashMap<>();<a name="line.521"></a> |
| <span class="sourceLineNo">522</span><a name="line.522"></a> |
| <span class="sourceLineNo">523</span> RequestHeapSizeChecker(final long maxHeapSizePerRequest) {<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> this.maxHeapSizePerRequest = maxHeapSizePerRequest;<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> @Override<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> public void reset() {<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> serverRequestSizes.clear();<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> }<a name="line.530"></a> |
| <span class="sourceLineNo">531</span><a name="line.531"></a> |
| <span class="sourceLineNo">532</span> @Override<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> public ReturnCode canTakeOperation(HRegionLocation loc, long heapSizeOfRow) {<a name="line.533"></a> |
| <span class="sourceLineNo">534</span> // Is it ok for limit of request size?<a name="line.534"></a> |
| <span class="sourceLineNo">535</span> long currentRequestSize = serverRequestSizes.containsKey(loc.getServerName())<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> ? serverRequestSizes.get(loc.getServerName()) : 0L;<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> // accept at least one request<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> if (currentRequestSize == 0 || currentRequestSize + heapSizeOfRow <= maxHeapSizePerRequest) {<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> return ReturnCode.INCLUDE;<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> }<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> return ReturnCode.SKIP;<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> }<a name="line.542"></a> |
| <span class="sourceLineNo">543</span><a name="line.543"></a> |
| <span class="sourceLineNo">544</span> @Override<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> public void notifyFinal(ReturnCode code, HRegionLocation loc, long heapSizeOfRow) {<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> if (code == ReturnCode.INCLUDE) {<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> long currentRequestSize = serverRequestSizes.containsKey(loc.getServerName())<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> ? serverRequestSizes.get(loc.getServerName()) : 0L;<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> serverRequestSizes.put(loc.getServerName(), currentRequestSize + heapSizeOfRow);<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> }<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> }<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> }<a name="line.552"></a> |
| <span class="sourceLineNo">553</span><a name="line.553"></a> |
| <span class="sourceLineNo">554</span> /**<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> * Provide a way to control the flow of rows iteration.<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> */<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> @VisibleForTesting<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> interface RowChecker {<a name="line.558"></a> |
| <span class="sourceLineNo">559</span><a name="line.559"></a> |
| <span class="sourceLineNo">560</span> ReturnCode canTakeOperation(HRegionLocation loc, long heapSizeOfRow);<a name="line.560"></a> |
| <span class="sourceLineNo">561</span><a name="line.561"></a> |
| <span class="sourceLineNo">562</span> /**<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> * Add the final ReturnCode to the checker. The ReturnCode may be reversed,<a name="line.563"></a> |
| <span class="sourceLineNo">564</span> * so the checker need the final decision to update the inner state.<a name="line.564"></a> |
| <span class="sourceLineNo">565</span> *<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> * @param code The final decision<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> * @param loc the destination of data<a name="line.567"></a> |
| <span class="sourceLineNo">568</span> * @param heapSizeOfRow the data size<a name="line.568"></a> |
| <span class="sourceLineNo">569</span> */<a name="line.569"></a> |
| <span class="sourceLineNo">570</span> void notifyFinal(ReturnCode code, HRegionLocation loc, long heapSizeOfRow);<a name="line.570"></a> |
| <span class="sourceLineNo">571</span><a name="line.571"></a> |
| <span class="sourceLineNo">572</span> /**<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> * Reset the inner state.<a name="line.573"></a> |
| <span class="sourceLineNo">574</span> */<a name="line.574"></a> |
| <span class="sourceLineNo">575</span> void reset() throws InterruptedIOException;<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> }<a name="line.576"></a> |
| <span class="sourceLineNo">577</span>}<a name="line.577"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
