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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.regionserver;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.HConstants.HFILE_BLOCK_CACHE_SIZE_KEY;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span><a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.lang.management.MemoryUsage;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.ArrayList;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.List;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span><a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.conf.Configuration;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.ChoreService;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.HConstants;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.ScheduledChore;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.Server;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.io.hfile.BlockCache;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.io.hfile.CombinedBlockCache;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.io.hfile.ResizableBlockCache;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.io.util.MemorySizeUtil;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.util.ReflectionUtils;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.slf4j.Logger;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.slf4j.LoggerFactory;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span><a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span><a name="line.43"></a> |
| <span class="sourceLineNo">044</span>/**<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * Manages tuning of Heap memory using <code>HeapMemoryTuner</code>. Most part of the heap memory is<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * split between Memstores and BlockCache. This manager helps in tuning sizes of both these<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * dynamically, as per the R/W load on the servers.<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> */<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>@InterfaceAudience.Private<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>public class HeapMemoryManager {<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> private static final Logger LOG = LoggerFactory.getLogger(HeapMemoryManager.class);<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> private static final int CONVERT_TO_PERCENTAGE = 100;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> private static final int CLUSTER_MINIMUM_MEMORY_THRESHOLD =<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> (int) (CONVERT_TO_PERCENTAGE * HConstants.HBASE_CLUSTER_MINIMUM_MEMORY_THRESHOLD);<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> public static final String BLOCK_CACHE_SIZE_MAX_RANGE_KEY = "hfile.block.cache.size.max.range";<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> public static final String BLOCK_CACHE_SIZE_MIN_RANGE_KEY = "hfile.block.cache.size.min.range";<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> public static final String MEMSTORE_SIZE_MAX_RANGE_KEY =<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> "hbase.regionserver.global.memstore.size.max.range";<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> public static final String MEMSTORE_SIZE_MIN_RANGE_KEY =<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> "hbase.regionserver.global.memstore.size.min.range";<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> public static final String HBASE_RS_HEAP_MEMORY_TUNER_PERIOD =<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> "hbase.regionserver.heapmemory.tuner.period";<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> public static final int HBASE_RS_HEAP_MEMORY_TUNER_DEFAULT_PERIOD = 60 * 1000;<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> public static final String HBASE_RS_HEAP_MEMORY_TUNER_CLASS =<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> "hbase.regionserver.heapmemory.tuner.class";<a name="line.66"></a> |
| <span class="sourceLineNo">067</span><a name="line.67"></a> |
| <span class="sourceLineNo">068</span> public static final float HEAP_OCCUPANCY_ERROR_VALUE = -0.0f;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> private float globalMemStorePercent;<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private float globalMemStorePercentMinRange;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> private float globalMemStorePercentMaxRange;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span><a name="line.73"></a> |
| <span class="sourceLineNo">074</span> private float blockCachePercent;<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> private float blockCachePercentMinRange;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> private float blockCachePercentMaxRange;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> private float heapOccupancyPercent;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span><a name="line.79"></a> |
| <span class="sourceLineNo">080</span> private final ResizableBlockCache blockCache;<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> // TODO : remove this and mark regionServerAccounting as the observer directly<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> private final FlushRequester memStoreFlusher;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> private final Server server;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> private final RegionServerAccounting regionServerAccounting;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span><a name="line.85"></a> |
| <span class="sourceLineNo">086</span> private HeapMemoryTunerChore heapMemTunerChore = null;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> private final boolean tunerOn;<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> private final int defaultChorePeriod;<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> private final float heapOccupancyLowWatermark;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span><a name="line.90"></a> |
| <span class="sourceLineNo">091</span> private final long maxHeapSize;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> // note that this initialization still isn't threadsafe, because updating a long isn't atomic.<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> long tempMaxHeap = -1L;<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> try {<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> final MemoryUsage usage = MemorySizeUtil.safeGetHeapMemoryUsage();<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> if (usage != null) {<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> tempMaxHeap = usage.getMax();<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> }<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> } finally {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> maxHeapSize = tempMaxHeap;<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> }<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> }<a name="line.103"></a> |
| <span class="sourceLineNo">104</span><a name="line.104"></a> |
| <span class="sourceLineNo">105</span> private MetricsHeapMemoryManager metricsHeapMemoryManager;<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> private List<HeapMemoryTuneObserver> tuneObservers = new ArrayList<>();<a name="line.107"></a> |
| <span class="sourceLineNo">108</span><a name="line.108"></a> |
| <span class="sourceLineNo">109</span> @VisibleForTesting<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> HeapMemoryManager(BlockCache blockCache, FlushRequester memStoreFlusher,<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> Server server, RegionServerAccounting regionServerAccounting) {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> Configuration conf = server.getConfiguration();<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> this.blockCache = toResizableBlockCache(blockCache);<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> this.memStoreFlusher = memStoreFlusher;<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> this.server = server;<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> this.regionServerAccounting = regionServerAccounting;<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> this.tunerOn = doInit(conf);<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> this.defaultChorePeriod = conf.getInt(HBASE_RS_HEAP_MEMORY_TUNER_PERIOD,<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> HBASE_RS_HEAP_MEMORY_TUNER_DEFAULT_PERIOD);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> this.heapOccupancyLowWatermark = conf.getFloat(HConstants.HEAP_OCCUPANCY_LOW_WATERMARK_KEY,<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> HConstants.DEFAULT_HEAP_OCCUPANCY_LOW_WATERMARK);<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> metricsHeapMemoryManager = new MetricsHeapMemoryManager();<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> }<a name="line.123"></a> |
| <span class="sourceLineNo">124</span><a name="line.124"></a> |
| <span class="sourceLineNo">125</span> private ResizableBlockCache toResizableBlockCache(BlockCache blockCache) {<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> if (blockCache instanceof CombinedBlockCache) {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> return (ResizableBlockCache) ((CombinedBlockCache) blockCache).getFirstLevelCache();<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> } else {<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> return (ResizableBlockCache) blockCache;<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> }<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> }<a name="line.131"></a> |
| <span class="sourceLineNo">132</span><a name="line.132"></a> |
| <span class="sourceLineNo">133</span> private boolean doInit(Configuration conf) {<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> boolean tuningEnabled = true;<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> globalMemStorePercent = MemorySizeUtil.getGlobalMemStoreHeapPercent(conf, false);<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> blockCachePercent = conf.getFloat(HFILE_BLOCK_CACHE_SIZE_KEY,<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> HConstants.HFILE_BLOCK_CACHE_SIZE_DEFAULT);<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> MemorySizeUtil.checkForClusterFreeHeapMemoryLimit(conf);<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> // Initialize max and min range for memstore heap space<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> globalMemStorePercentMinRange = conf.getFloat(MEMSTORE_SIZE_MIN_RANGE_KEY,<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> globalMemStorePercent);<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> globalMemStorePercentMaxRange = conf.getFloat(MEMSTORE_SIZE_MAX_RANGE_KEY,<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> globalMemStorePercent);<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> if (globalMemStorePercent < globalMemStorePercentMinRange) {<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> LOG.warn("Setting " + MEMSTORE_SIZE_MIN_RANGE_KEY + " to " + globalMemStorePercent<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> + ", same value as " + MemorySizeUtil.MEMSTORE_SIZE_KEY<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> + " because supplied value greater than initial memstore size value.");<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> globalMemStorePercentMinRange = globalMemStorePercent;<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> conf.setFloat(MEMSTORE_SIZE_MIN_RANGE_KEY, globalMemStorePercentMinRange);<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> }<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> if (globalMemStorePercent > globalMemStorePercentMaxRange) {<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> LOG.warn("Setting " + MEMSTORE_SIZE_MAX_RANGE_KEY + " to " + globalMemStorePercent<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> + ", same value as " + MemorySizeUtil.MEMSTORE_SIZE_KEY<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> + " because supplied value less than initial memstore size value.");<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> globalMemStorePercentMaxRange = globalMemStorePercent;<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> conf.setFloat(MEMSTORE_SIZE_MAX_RANGE_KEY, globalMemStorePercentMaxRange);<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> }<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> if (globalMemStorePercent == globalMemStorePercentMinRange<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> && globalMemStorePercent == globalMemStorePercentMaxRange) {<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> tuningEnabled = false;<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> }<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> // Initialize max and min range for block cache<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> blockCachePercentMinRange = conf.getFloat(BLOCK_CACHE_SIZE_MIN_RANGE_KEY, blockCachePercent);<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> blockCachePercentMaxRange = conf.getFloat(BLOCK_CACHE_SIZE_MAX_RANGE_KEY, blockCachePercent);<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> if (blockCachePercent < blockCachePercentMinRange) {<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> LOG.warn("Setting " + BLOCK_CACHE_SIZE_MIN_RANGE_KEY + " to " + blockCachePercent<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> + ", same value as " + HFILE_BLOCK_CACHE_SIZE_KEY<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> + " because supplied value greater than initial block cache size.");<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> blockCachePercentMinRange = blockCachePercent;<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> conf.setFloat(BLOCK_CACHE_SIZE_MIN_RANGE_KEY, blockCachePercentMinRange);<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> }<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> if (blockCachePercent > blockCachePercentMaxRange) {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> LOG.warn("Setting " + BLOCK_CACHE_SIZE_MAX_RANGE_KEY + " to " + blockCachePercent<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> + ", same value as " + HFILE_BLOCK_CACHE_SIZE_KEY<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> + " because supplied value less than initial block cache size.");<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> blockCachePercentMaxRange = blockCachePercent;<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> conf.setFloat(BLOCK_CACHE_SIZE_MAX_RANGE_KEY, blockCachePercentMaxRange);<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> }<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> if (tuningEnabled && blockCachePercent == blockCachePercentMinRange<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> && blockCachePercent == blockCachePercentMaxRange) {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> tuningEnabled = false;<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> }<a name="line.182"></a> |
| <span class="sourceLineNo">183</span><a name="line.183"></a> |
| <span class="sourceLineNo">184</span> int gml = (int) (globalMemStorePercentMaxRange * CONVERT_TO_PERCENTAGE);<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> int bcul = (int) ((blockCachePercentMinRange) * CONVERT_TO_PERCENTAGE);<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> if (CONVERT_TO_PERCENTAGE - (gml + bcul) < CLUSTER_MINIMUM_MEMORY_THRESHOLD) {<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> throw new RuntimeException("Current heap configuration for MemStore and BlockCache exceeds "<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> + "the threshold required for successful cluster operation. "<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> + "The combined value cannot exceed 0.8. Please check the settings for "<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> + MEMSTORE_SIZE_MAX_RANGE_KEY + " and " + BLOCK_CACHE_SIZE_MIN_RANGE_KEY<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> + " in your configuration. " + MEMSTORE_SIZE_MAX_RANGE_KEY + " is "<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> + globalMemStorePercentMaxRange + " and " + BLOCK_CACHE_SIZE_MIN_RANGE_KEY + " is "<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> + blockCachePercentMinRange);<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> }<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> gml = (int) (globalMemStorePercentMinRange * CONVERT_TO_PERCENTAGE);<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> bcul = (int) ((blockCachePercentMaxRange) * CONVERT_TO_PERCENTAGE);<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> if (CONVERT_TO_PERCENTAGE - (gml + bcul) < CLUSTER_MINIMUM_MEMORY_THRESHOLD) {<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> throw new RuntimeException("Current heap configuration for MemStore and BlockCache exceeds "<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> + "the threshold required for successful cluster operation. "<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> + "The combined value cannot exceed 0.8. Please check the settings for "<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> + MEMSTORE_SIZE_MIN_RANGE_KEY + " and " + BLOCK_CACHE_SIZE_MAX_RANGE_KEY<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> + " in your configuration. " + MEMSTORE_SIZE_MIN_RANGE_KEY + " is "<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> + globalMemStorePercentMinRange + " and " + BLOCK_CACHE_SIZE_MAX_RANGE_KEY + " is "<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> + blockCachePercentMaxRange);<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> }<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> return tuningEnabled;<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> public void start(ChoreService service) {<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> LOG.info("Starting, tuneOn={}", this.tunerOn);<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> this.heapMemTunerChore = new HeapMemoryTunerChore();<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> service.scheduleChore(heapMemTunerChore);<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> if (tunerOn) {<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> // Register HeapMemoryTuner as a memstore flush listener<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> memStoreFlusher.registerFlushRequestListener(heapMemTunerChore);<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> }<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> }<a name="line.217"></a> |
| <span class="sourceLineNo">218</span><a name="line.218"></a> |
| <span class="sourceLineNo">219</span> public void stop() {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> // The thread is Daemon. Just interrupting the ongoing process.<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> LOG.info("Stopping");<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> this.heapMemTunerChore.cancel(true);<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 registerTuneObserver(HeapMemoryTuneObserver observer) {<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> this.tuneObservers.add(observer);<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> }<a name="line.227"></a> |
| <span class="sourceLineNo">228</span><a name="line.228"></a> |
| <span class="sourceLineNo">229</span> // Used by the test cases.<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> boolean isTunerOn() {<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> return this.tunerOn;<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> }<a name="line.232"></a> |
| <span class="sourceLineNo">233</span><a name="line.233"></a> |
| <span class="sourceLineNo">234</span> /**<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> * @return heap occupancy percentage, 0 &lt;= n &lt;= 1. or -0.0 for error asking JVM<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> */<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> public float getHeapOccupancyPercent() {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> return this.heapOccupancyPercent == Float.MAX_VALUE ? HEAP_OCCUPANCY_ERROR_VALUE : this.heapOccupancyPercent;<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> }<a name="line.239"></a> |
| <span class="sourceLineNo">240</span><a name="line.240"></a> |
| <span class="sourceLineNo">241</span> private class HeapMemoryTunerChore extends ScheduledChore implements FlushRequestListener {<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> private HeapMemoryTuner heapMemTuner;<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> private AtomicLong blockedFlushCount = new AtomicLong();<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> private AtomicLong unblockedFlushCount = new AtomicLong();<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> private long evictCount = 0L;<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> private long cacheMissCount = 0L;<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> private TunerContext tunerContext = new TunerContext();<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> private boolean alarming = false;<a name="line.248"></a> |
| <span class="sourceLineNo">249</span><a name="line.249"></a> |
| <span class="sourceLineNo">250</span> public HeapMemoryTunerChore() {<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> super(server.getServerName() + "-HeapMemoryTunerChore", server, defaultChorePeriod);<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> Class<? extends HeapMemoryTuner> tunerKlass = server.getConfiguration().getClass(<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> HBASE_RS_HEAP_MEMORY_TUNER_CLASS, DefaultHeapMemoryTuner.class, HeapMemoryTuner.class);<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> heapMemTuner = ReflectionUtils.newInstance(tunerKlass, server.getConfiguration());<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> tunerContext<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> .setOffheapMemStore(regionServerAccounting.isOffheap());<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> @Override<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> protected void chore() {<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> // Sample heap occupancy<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> final MemoryUsage usage = MemorySizeUtil.safeGetHeapMemoryUsage();<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> if (usage != null) {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> heapOccupancyPercent = (float)usage.getUsed() / (float)usage.getCommitted();<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> } else {<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> // previously, an exception would have meant death for the tuning chore<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> // so switch to alarming so that we similarly stop tuning until we get<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> // heap usage information again.<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> heapOccupancyPercent = Float.MAX_VALUE;<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> }<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> // If we are above the heap occupancy alarm low watermark, switch to short<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> // sleeps for close monitoring. Stop autotuning, we are in a danger zone.<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> if (heapOccupancyPercent >= heapOccupancyLowWatermark) {<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> if (!alarming) {<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> LOG.warn("heapOccupancyPercent " + heapOccupancyPercent +<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> " is above heap occupancy alarm watermark (" + heapOccupancyLowWatermark + ")");<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> alarming = true;<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> }<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> metricsHeapMemoryManager.increaseAboveHeapOccupancyLowWatermarkCounter();<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> triggerNow();<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> try {<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> // Need to sleep ourselves since we've told the chore's sleeper<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> // to skip the next sleep cycle.<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> Thread.sleep(1000);<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> } catch (InterruptedException e) {<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> // Interrupted, propagate<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> Thread.currentThread().interrupt();<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> }<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> } else {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> if (alarming) {<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> LOG.info("heapOccupancyPercent " + heapOccupancyPercent +<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> " is now below the heap occupancy alarm watermark (" +<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> heapOccupancyLowWatermark + ")");<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> alarming = false;<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> }<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> }<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> // Autotune if tuning is enabled and allowed<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> if (tunerOn && !alarming) {<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> tune();<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 tune() {<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> // TODO check if we can increase the memory boundaries<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> // while remaining in the limits<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> long curEvictCount;<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> long curCacheMisCount;<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> long blockedFlushCnt;<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> long unblockedFlushCnt;<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> curEvictCount = blockCache.getStats().getEvictedCount();<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> tunerContext.setEvictCount(curEvictCount - evictCount);<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> evictCount = curEvictCount;<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> curCacheMisCount = blockCache.getStats().getMissCachingCount();<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> tunerContext.setCacheMissCount(curCacheMisCount-cacheMissCount);<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> cacheMissCount = curCacheMisCount;<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> blockedFlushCnt = blockedFlushCount.getAndSet(0);<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> tunerContext.setBlockedFlushCount(blockedFlushCnt);<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> metricsHeapMemoryManager.updateBlockedFlushCount(blockedFlushCnt);<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> unblockedFlushCnt = unblockedFlushCount.getAndSet(0);<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> tunerContext.setUnblockedFlushCount(unblockedFlushCnt);<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> metricsHeapMemoryManager.updateUnblockedFlushCount(unblockedFlushCnt);<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> // TODO : add support for offheap metrics<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> tunerContext.setCurBlockCacheUsed((float) blockCache.getCurrentSize() / maxHeapSize);<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> metricsHeapMemoryManager.setCurBlockCacheSizeGauge(blockCache.getCurrentSize());<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> long globalMemstoreHeapSize = regionServerAccounting.getGlobalMemStoreHeapSize();<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> tunerContext.setCurMemStoreUsed((float) globalMemstoreHeapSize / maxHeapSize);<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> metricsHeapMemoryManager.setCurMemStoreSizeGauge(globalMemstoreHeapSize);<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> tunerContext.setCurBlockCacheSize(blockCachePercent);<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> tunerContext.setCurMemStoreSize(globalMemStorePercent);<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> TunerResult result = null;<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> try {<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> result = this.heapMemTuner.tune(tunerContext);<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> } catch (Throwable t) {<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> LOG.error("Exception thrown from the HeapMemoryTuner implementation", t);<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> }<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> if (result != null && result.needsTuning()) {<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> float memstoreSize = result.getMemStoreSize();<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> float blockCacheSize = result.getBlockCacheSize();<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> LOG.debug("From HeapMemoryTuner new memstoreSize: " + memstoreSize<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> + ". new blockCacheSize: " + blockCacheSize);<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> if (memstoreSize < globalMemStorePercentMinRange) {<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> LOG.info("New memstoreSize from HeapMemoryTuner " + memstoreSize + " is below min level "<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> + globalMemStorePercentMinRange + ". Resetting memstoreSize to min size");<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> memstoreSize = globalMemStorePercentMinRange;<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> } else if (memstoreSize > globalMemStorePercentMaxRange) {<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> LOG.info("New memstoreSize from HeapMemoryTuner " + memstoreSize + " is above max level "<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> + globalMemStorePercentMaxRange + ". Resetting memstoreSize to max size");<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> memstoreSize = globalMemStorePercentMaxRange;<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> }<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> if (blockCacheSize < blockCachePercentMinRange) {<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> LOG.info("New blockCacheSize from HeapMemoryTuner " + blockCacheSize<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> + " is below min level " + blockCachePercentMinRange<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> + ". Resetting blockCacheSize to min size");<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> blockCacheSize = blockCachePercentMinRange;<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> } else if (blockCacheSize > blockCachePercentMaxRange) {<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> LOG.info("New blockCacheSize from HeapMemoryTuner " + blockCacheSize<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> + " is above max level " + blockCachePercentMaxRange<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> + ". Resetting blockCacheSize to min size");<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> blockCacheSize = blockCachePercentMaxRange;<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> }<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> int gml = (int) (memstoreSize * CONVERT_TO_PERCENTAGE);<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> int bcul = (int) ((blockCacheSize) * CONVERT_TO_PERCENTAGE);<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> if (CONVERT_TO_PERCENTAGE - (gml + bcul) < CLUSTER_MINIMUM_MEMORY_THRESHOLD) {<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> LOG.info("Current heap configuration from HeapMemoryTuner exceeds "<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> + "the threshold required for successful cluster operation. "<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> + "The combined value cannot exceed 0.8. " + MemorySizeUtil.MEMSTORE_SIZE_KEY<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> + " is " + memstoreSize + " and " + HFILE_BLOCK_CACHE_SIZE_KEY + " is "<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> + blockCacheSize);<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> // TODO can adjust the value so as not exceed 80%. Is that correct? may be.<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> } else {<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> int memStoreDeltaSize =<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> (int) ((memstoreSize - globalMemStorePercent) * CONVERT_TO_PERCENTAGE);<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> int blockCacheDeltaSize =<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> (int) ((blockCacheSize - blockCachePercent) * CONVERT_TO_PERCENTAGE);<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> metricsHeapMemoryManager.updateMemStoreDeltaSizeHistogram(memStoreDeltaSize);<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> metricsHeapMemoryManager.updateBlockCacheDeltaSizeHistogram(blockCacheDeltaSize);<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> long newBlockCacheSize = (long) (maxHeapSize * blockCacheSize);<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> // we could have got an increase or decrease in size for the offheap memstore<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> // also if the flush had happened due to heap overhead. In that case it is ok<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> // to adjust the onheap memstore limit configs<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> long newMemstoreSize = (long) (maxHeapSize * memstoreSize);<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> LOG.info("Setting block cache heap size to " + newBlockCacheSize<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> + " and memstore heap size to " + newMemstoreSize);<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> blockCachePercent = blockCacheSize;<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> blockCache.setMaxSize(newBlockCacheSize);<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> globalMemStorePercent = memstoreSize;<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> // Internally sets it to RegionServerAccounting<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> // TODO : Set directly on RSAccounting??<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> memStoreFlusher.setGlobalMemStoreLimit(newMemstoreSize);<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> for (HeapMemoryTuneObserver observer : tuneObservers) {<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> // Risky.. If this newMemstoreSize decreases we reduce the count in offheap chunk pool<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> observer.onHeapMemoryTune(newMemstoreSize, newBlockCacheSize);<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> }<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> }<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> } else {<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> metricsHeapMemoryManager.increaseTunerDoNothingCounter();<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> if (LOG.isDebugEnabled()) {<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> LOG.debug("No changes made by HeapMemoryTuner.");<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> }<a name="line.401"></a> |
| <span class="sourceLineNo">402</span><a name="line.402"></a> |
| <span class="sourceLineNo">403</span> @Override<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> public void flushRequested(FlushType type, Region region) {<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> switch (type) {<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> case ABOVE_ONHEAP_HIGHER_MARK:<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> blockedFlushCount.incrementAndGet();<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> break;<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> case ABOVE_ONHEAP_LOWER_MARK:<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> unblockedFlushCount.incrementAndGet();<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> break;<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> // Removed the counting of the offheap related flushes (after reviews). Will add later if<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> // needed<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> default:<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> // In case of any other flush don't do any action.<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> break;<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> }<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> }<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> }<a name="line.419"></a> |
| <span class="sourceLineNo">420</span><a name="line.420"></a> |
| <span class="sourceLineNo">421</span> /**<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> * POJO to pass all the relevant information required to do the heap memory tuning. It holds the<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> * flush counts and block cache evictions happened within the interval. Also holds the current<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> * heap percentage allocated for memstore and block cache.<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> */<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> public static final class TunerContext {<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> private long blockedFlushCount;<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> private long unblockedFlushCount;<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> private long evictCount;<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> private long cacheMissCount;<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> private float curBlockCacheUsed;<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> private float curMemStoreUsed;<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> private float curMemStoreSize;<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> private float curBlockCacheSize;<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> private boolean offheapMemstore;<a name="line.435"></a> |
| <span class="sourceLineNo">436</span><a name="line.436"></a> |
| <span class="sourceLineNo">437</span> public long getBlockedFlushCount() {<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> return blockedFlushCount;<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> }<a name="line.439"></a> |
| <span class="sourceLineNo">440</span><a name="line.440"></a> |
| <span class="sourceLineNo">441</span> public void setBlockedFlushCount(long blockedFlushCount) {<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> this.blockedFlushCount = blockedFlushCount;<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> }<a name="line.443"></a> |
| <span class="sourceLineNo">444</span><a name="line.444"></a> |
| <span class="sourceLineNo">445</span> public long getUnblockedFlushCount() {<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> return unblockedFlushCount;<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> }<a name="line.447"></a> |
| <span class="sourceLineNo">448</span><a name="line.448"></a> |
| <span class="sourceLineNo">449</span> public void setUnblockedFlushCount(long unblockedFlushCount) {<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> this.unblockedFlushCount = unblockedFlushCount;<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> }<a name="line.451"></a> |
| <span class="sourceLineNo">452</span><a name="line.452"></a> |
| <span class="sourceLineNo">453</span> public long getEvictCount() {<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> return evictCount;<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> }<a name="line.455"></a> |
| <span class="sourceLineNo">456</span><a name="line.456"></a> |
| <span class="sourceLineNo">457</span> public void setEvictCount(long evictCount) {<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> this.evictCount = evictCount;<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> }<a name="line.459"></a> |
| <span class="sourceLineNo">460</span><a name="line.460"></a> |
| <span class="sourceLineNo">461</span> public float getCurMemStoreSize() {<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> return curMemStoreSize;<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> public void setCurMemStoreSize(float curMemStoreSize) {<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> this.curMemStoreSize = curMemStoreSize;<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> }<a name="line.467"></a> |
| <span class="sourceLineNo">468</span><a name="line.468"></a> |
| <span class="sourceLineNo">469</span> public float getCurBlockCacheSize() {<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> return curBlockCacheSize;<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> }<a name="line.471"></a> |
| <span class="sourceLineNo">472</span><a name="line.472"></a> |
| <span class="sourceLineNo">473</span> public void setCurBlockCacheSize(float curBlockCacheSize) {<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> this.curBlockCacheSize = curBlockCacheSize;<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> }<a name="line.475"></a> |
| <span class="sourceLineNo">476</span><a name="line.476"></a> |
| <span class="sourceLineNo">477</span> public long getCacheMissCount() {<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> return cacheMissCount;<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 void setCacheMissCount(long cacheMissCount) {<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> this.cacheMissCount = cacheMissCount;<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 float getCurBlockCacheUsed() {<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> return curBlockCacheUsed;<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 void setCurBlockCacheUsed(float curBlockCacheUsed) {<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> this.curBlockCacheUsed = curBlockCacheUsed;<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 float getCurMemStoreUsed() {<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> return curMemStoreUsed;<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> public void setCurMemStoreUsed(float d) {<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> this.curMemStoreUsed = d;<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> }<a name="line.499"></a> |
| <span class="sourceLineNo">500</span><a name="line.500"></a> |
| <span class="sourceLineNo">501</span> public void setOffheapMemStore(boolean offheapMemstore) {<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> this.offheapMemstore = offheapMemstore;<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> }<a name="line.503"></a> |
| <span class="sourceLineNo">504</span><a name="line.504"></a> |
| <span class="sourceLineNo">505</span> public boolean isOffheapMemStore() {<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> return this.offheapMemstore;<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> }<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> /**<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> * POJO which holds the result of memory tuning done by HeapMemoryTuner implementation.<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> * It includes the new heap percentage for memstore and block cache.<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> */<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> public static final class TunerResult {<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> private float memstoreSize;<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> private float blockCacheSize;<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> private final boolean needsTuning;<a name="line.517"></a> |
| <span class="sourceLineNo">518</span><a name="line.518"></a> |
| <span class="sourceLineNo">519</span> public TunerResult(boolean needsTuning) {<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> this.needsTuning = needsTuning;<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> }<a name="line.521"></a> |
| <span class="sourceLineNo">522</span><a name="line.522"></a> |
| <span class="sourceLineNo">523</span> public float getMemStoreSize() {<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> return memstoreSize;<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> public void setMemStoreSize(float memstoreSize) {<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> this.memstoreSize = memstoreSize;<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> }<a name="line.529"></a> |
| <span class="sourceLineNo">530</span><a name="line.530"></a> |
| <span class="sourceLineNo">531</span> public float getBlockCacheSize() {<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> return blockCacheSize;<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> }<a name="line.533"></a> |
| <span class="sourceLineNo">534</span><a name="line.534"></a> |
| <span class="sourceLineNo">535</span> public void setBlockCacheSize(float blockCacheSize) {<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> this.blockCacheSize = blockCacheSize;<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> }<a name="line.537"></a> |
| <span class="sourceLineNo">538</span><a name="line.538"></a> |
| <span class="sourceLineNo">539</span> public boolean needsTuning() {<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> return needsTuning;<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> }<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> /**<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> * Every class that wants to observe heap memory tune actions must implement this interface.<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> */<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> public static interface HeapMemoryTuneObserver {<a name="line.547"></a> |
| <span class="sourceLineNo">548</span><a name="line.548"></a> |
| <span class="sourceLineNo">549</span> /**<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> * This method would be called by HeapMemoryManger when a heap memory tune action took place.<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> * @param newMemstoreSize The newly calculated global memstore size<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> * @param newBlockCacheSize The newly calculated global blockcache size<a name="line.552"></a> |
| <span class="sourceLineNo">553</span> */<a name="line.553"></a> |
| <span class="sourceLineNo">554</span> void onHeapMemoryTune(long newMemstoreSize, long newBlockCacheSize);<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> }<a name="line.555"></a> |
| <span class="sourceLineNo">556</span>}<a name="line.556"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
