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<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
<span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
<span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
<span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a>
<span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a>
<span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a>
<span class="sourceLineNo">009</span> *<a name="line.9"></a>
<span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
<span class="sourceLineNo">011</span> *<a name="line.11"></a>
<span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
<span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
<span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
<span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a>
<span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a>
<span class="sourceLineNo">017</span> */<a name="line.17"></a>
<span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.io.hfile;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>import java.util.Arrays;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.concurrent.atomic.LongAdder;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.metrics.impl.FastLongHistogram;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.24"></a>
<span class="sourceLineNo">025</span><a name="line.25"></a>
<span class="sourceLineNo">026</span>/**<a name="line.26"></a>
<span class="sourceLineNo">027</span> * Class that implements cache metrics.<a name="line.27"></a>
<span class="sourceLineNo">028</span> */<a name="line.28"></a>
<span class="sourceLineNo">029</span>@InterfaceAudience.Private<a name="line.29"></a>
<span class="sourceLineNo">030</span>public class CacheStats {<a name="line.30"></a>
<span class="sourceLineNo">031</span><a name="line.31"></a>
<span class="sourceLineNo">032</span> /**<a name="line.32"></a>
<span class="sourceLineNo">033</span> * Sliding window statistics. The number of metric periods to include in sliding window hit ratio<a name="line.33"></a>
<span class="sourceLineNo">034</span> * calculations.<a name="line.34"></a>
<span class="sourceLineNo">035</span> */<a name="line.35"></a>
<span class="sourceLineNo">036</span> static final int DEFAULT_WINDOW_PERIODS = 5;<a name="line.36"></a>
<span class="sourceLineNo">037</span><a name="line.37"></a>
<span class="sourceLineNo">038</span> /** The number of getBlock requests that were cache hits */<a name="line.38"></a>
<span class="sourceLineNo">039</span> private final LongAdder hitCount = new LongAdder();<a name="line.39"></a>
<span class="sourceLineNo">040</span><a name="line.40"></a>
<span class="sourceLineNo">041</span> /** The number of getBlock requests that were cache hits from primary replica */<a name="line.41"></a>
<span class="sourceLineNo">042</span> private final LongAdder primaryHitCount = new LongAdder();<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> * The number of getBlock requests that were cache hits, but only from requests that were set to<a name="line.45"></a>
<span class="sourceLineNo">046</span> * use the block cache. This is because all reads attempt to read from the block cache even if<a name="line.46"></a>
<span class="sourceLineNo">047</span> * they will not put new blocks into the block cache. See HBASE-2253 for more information.<a name="line.47"></a>
<span class="sourceLineNo">048</span> */<a name="line.48"></a>
<span class="sourceLineNo">049</span> private final LongAdder hitCachingCount = new LongAdder();<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
<span class="sourceLineNo">051</span> /** The number of getBlock requests that were cache misses */<a name="line.51"></a>
<span class="sourceLineNo">052</span> private final LongAdder missCount = new LongAdder();<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
<span class="sourceLineNo">054</span> /** The number of getBlock requests for primary replica that were cache misses */<a name="line.54"></a>
<span class="sourceLineNo">055</span> private final LongAdder primaryMissCount = new LongAdder();<a name="line.55"></a>
<span class="sourceLineNo">056</span> /**<a name="line.56"></a>
<span class="sourceLineNo">057</span> * The number of getBlock requests that were cache misses, but only from requests that were set to<a name="line.57"></a>
<span class="sourceLineNo">058</span> * use the block cache.<a name="line.58"></a>
<span class="sourceLineNo">059</span> */<a name="line.59"></a>
<span class="sourceLineNo">060</span> private final LongAdder missCachingCount = new LongAdder();<a name="line.60"></a>
<span class="sourceLineNo">061</span><a name="line.61"></a>
<span class="sourceLineNo">062</span> /** The number of times an eviction has occurred */<a name="line.62"></a>
<span class="sourceLineNo">063</span> private final LongAdder evictionCount = new LongAdder();<a name="line.63"></a>
<span class="sourceLineNo">064</span><a name="line.64"></a>
<span class="sourceLineNo">065</span> /** The total number of blocks that have been evicted */<a name="line.65"></a>
<span class="sourceLineNo">066</span> private final LongAdder evictedBlockCount = new LongAdder();<a name="line.66"></a>
<span class="sourceLineNo">067</span><a name="line.67"></a>
<span class="sourceLineNo">068</span> /** The total number of blocks for primary replica that have been evicted */<a name="line.68"></a>
<span class="sourceLineNo">069</span> private final LongAdder primaryEvictedBlockCount = new LongAdder();<a name="line.69"></a>
<span class="sourceLineNo">070</span><a name="line.70"></a>
<span class="sourceLineNo">071</span> /** The total number of blocks that were not inserted. */<a name="line.71"></a>
<span class="sourceLineNo">072</span> private final AtomicLong failedInserts = new AtomicLong(0);<a name="line.72"></a>
<span class="sourceLineNo">073</span><a name="line.73"></a>
<span class="sourceLineNo">074</span> /** Per Block Type Counts */<a name="line.74"></a>
<span class="sourceLineNo">075</span> private final LongAdder dataMissCount = new LongAdder();<a name="line.75"></a>
<span class="sourceLineNo">076</span> private final LongAdder leafIndexMissCount = new LongAdder();<a name="line.76"></a>
<span class="sourceLineNo">077</span> private final LongAdder bloomChunkMissCount = new LongAdder();<a name="line.77"></a>
<span class="sourceLineNo">078</span> private final LongAdder metaMissCount = new LongAdder();<a name="line.78"></a>
<span class="sourceLineNo">079</span> private final LongAdder rootIndexMissCount = new LongAdder();<a name="line.79"></a>
<span class="sourceLineNo">080</span> private final LongAdder intermediateIndexMissCount = new LongAdder();<a name="line.80"></a>
<span class="sourceLineNo">081</span> private final LongAdder fileInfoMissCount = new LongAdder();<a name="line.81"></a>
<span class="sourceLineNo">082</span> private final LongAdder generalBloomMetaMissCount = new LongAdder();<a name="line.82"></a>
<span class="sourceLineNo">083</span> private final LongAdder deleteFamilyBloomMissCount = new LongAdder();<a name="line.83"></a>
<span class="sourceLineNo">084</span> private final LongAdder trailerMissCount = new LongAdder();<a name="line.84"></a>
<span class="sourceLineNo">085</span><a name="line.85"></a>
<span class="sourceLineNo">086</span> private final LongAdder dataHitCount = new LongAdder();<a name="line.86"></a>
<span class="sourceLineNo">087</span> private final LongAdder leafIndexHitCount = new LongAdder();<a name="line.87"></a>
<span class="sourceLineNo">088</span> private final LongAdder bloomChunkHitCount = new LongAdder();<a name="line.88"></a>
<span class="sourceLineNo">089</span> private final LongAdder metaHitCount = new LongAdder();<a name="line.89"></a>
<span class="sourceLineNo">090</span> private final LongAdder rootIndexHitCount = new LongAdder();<a name="line.90"></a>
<span class="sourceLineNo">091</span> private final LongAdder intermediateIndexHitCount = new LongAdder();<a name="line.91"></a>
<span class="sourceLineNo">092</span> private final LongAdder fileInfoHitCount = new LongAdder();<a name="line.92"></a>
<span class="sourceLineNo">093</span> private final LongAdder generalBloomMetaHitCount = new LongAdder();<a name="line.93"></a>
<span class="sourceLineNo">094</span> private final LongAdder deleteFamilyBloomHitCount = new LongAdder();<a name="line.94"></a>
<span class="sourceLineNo">095</span> private final LongAdder trailerHitCount = new LongAdder();<a name="line.95"></a>
<span class="sourceLineNo">096</span><a name="line.96"></a>
<span class="sourceLineNo">097</span> /** The number of metrics periods to include in window */<a name="line.97"></a>
<span class="sourceLineNo">098</span> private final int numPeriodsInWindow;<a name="line.98"></a>
<span class="sourceLineNo">099</span> /** Hit counts for each period in window */<a name="line.99"></a>
<span class="sourceLineNo">100</span> private final long[] hitCounts;<a name="line.100"></a>
<span class="sourceLineNo">101</span> /** Caching hit counts for each period in window */<a name="line.101"></a>
<span class="sourceLineNo">102</span> private final long[] hitCachingCounts;<a name="line.102"></a>
<span class="sourceLineNo">103</span> /** Access counts for each period in window */<a name="line.103"></a>
<span class="sourceLineNo">104</span> private final long[] requestCounts;<a name="line.104"></a>
<span class="sourceLineNo">105</span> /** Caching access counts for each period in window */<a name="line.105"></a>
<span class="sourceLineNo">106</span> private final long[] requestCachingCounts;<a name="line.106"></a>
<span class="sourceLineNo">107</span> /** Last hit count read */<a name="line.107"></a>
<span class="sourceLineNo">108</span> private long lastHitCount = 0;<a name="line.108"></a>
<span class="sourceLineNo">109</span> /** Last hit caching count read */<a name="line.109"></a>
<span class="sourceLineNo">110</span> private long lastHitCachingCount = 0;<a name="line.110"></a>
<span class="sourceLineNo">111</span> /** Last request count read */<a name="line.111"></a>
<span class="sourceLineNo">112</span> private long lastRequestCount = 0;<a name="line.112"></a>
<span class="sourceLineNo">113</span> /** Last request caching count read */<a name="line.113"></a>
<span class="sourceLineNo">114</span> private long lastRequestCachingCount = 0;<a name="line.114"></a>
<span class="sourceLineNo">115</span> /** Current window index (next to be updated) */<a name="line.115"></a>
<span class="sourceLineNo">116</span> private int windowIndex = 0;<a name="line.116"></a>
<span class="sourceLineNo">117</span> /**<a name="line.117"></a>
<span class="sourceLineNo">118</span> * Keep running age at eviction time<a name="line.118"></a>
<span class="sourceLineNo">119</span> */<a name="line.119"></a>
<span class="sourceLineNo">120</span> private FastLongHistogram ageAtEviction;<a name="line.120"></a>
<span class="sourceLineNo">121</span> private long startTime = System.nanoTime();<a name="line.121"></a>
<span class="sourceLineNo">122</span><a name="line.122"></a>
<span class="sourceLineNo">123</span> public CacheStats(final String name) {<a name="line.123"></a>
<span class="sourceLineNo">124</span> this(name, DEFAULT_WINDOW_PERIODS);<a name="line.124"></a>
<span class="sourceLineNo">125</span> }<a name="line.125"></a>
<span class="sourceLineNo">126</span><a name="line.126"></a>
<span class="sourceLineNo">127</span> public CacheStats(final String name, int numPeriodsInWindow) {<a name="line.127"></a>
<span class="sourceLineNo">128</span> this.numPeriodsInWindow = numPeriodsInWindow;<a name="line.128"></a>
<span class="sourceLineNo">129</span> this.hitCounts = new long[numPeriodsInWindow];<a name="line.129"></a>
<span class="sourceLineNo">130</span> this.hitCachingCounts = new long[numPeriodsInWindow];<a name="line.130"></a>
<span class="sourceLineNo">131</span> this.requestCounts = new long[numPeriodsInWindow];<a name="line.131"></a>
<span class="sourceLineNo">132</span> this.requestCachingCounts = new long[numPeriodsInWindow];<a name="line.132"></a>
<span class="sourceLineNo">133</span> this.ageAtEviction = new FastLongHistogram();<a name="line.133"></a>
<span class="sourceLineNo">134</span> }<a name="line.134"></a>
<span class="sourceLineNo">135</span><a name="line.135"></a>
<span class="sourceLineNo">136</span> @Override<a name="line.136"></a>
<span class="sourceLineNo">137</span> public String toString() {<a name="line.137"></a>
<span class="sourceLineNo">138</span> AgeSnapshot snapshot = getAgeAtEvictionSnapshot();<a name="line.138"></a>
<span class="sourceLineNo">139</span> return "hitCount=" + getHitCount() + ", hitCachingCount=" + getHitCachingCount()<a name="line.139"></a>
<span class="sourceLineNo">140</span> + ", missCount=" + getMissCount() + ", missCachingCount=" + getMissCachingCount()<a name="line.140"></a>
<span class="sourceLineNo">141</span> + ", evictionCount=" + getEvictionCount() + ", evictedBlockCount=" + getEvictedCount()<a name="line.141"></a>
<span class="sourceLineNo">142</span> + ", primaryMissCount=" + getPrimaryMissCount() + ", primaryHitCount=" + getPrimaryHitCount()<a name="line.142"></a>
<span class="sourceLineNo">143</span> + ", evictedAgeMean=" + snapshot.getMean();<a name="line.143"></a>
<span class="sourceLineNo">144</span> }<a name="line.144"></a>
<span class="sourceLineNo">145</span><a name="line.145"></a>
<span class="sourceLineNo">146</span> public void miss(boolean caching, boolean primary, BlockType type) {<a name="line.146"></a>
<span class="sourceLineNo">147</span> missCount.increment();<a name="line.147"></a>
<span class="sourceLineNo">148</span> if (primary) primaryMissCount.increment();<a name="line.148"></a>
<span class="sourceLineNo">149</span> if (caching) missCachingCount.increment();<a name="line.149"></a>
<span class="sourceLineNo">150</span> if (type == null) {<a name="line.150"></a>
<span class="sourceLineNo">151</span> return;<a name="line.151"></a>
<span class="sourceLineNo">152</span> }<a name="line.152"></a>
<span class="sourceLineNo">153</span> switch (type) {<a name="line.153"></a>
<span class="sourceLineNo">154</span> case DATA:<a name="line.154"></a>
<span class="sourceLineNo">155</span> case ENCODED_DATA:<a name="line.155"></a>
<span class="sourceLineNo">156</span> dataMissCount.increment();<a name="line.156"></a>
<span class="sourceLineNo">157</span> break;<a name="line.157"></a>
<span class="sourceLineNo">158</span> case LEAF_INDEX:<a name="line.158"></a>
<span class="sourceLineNo">159</span> leafIndexMissCount.increment();<a name="line.159"></a>
<span class="sourceLineNo">160</span> break;<a name="line.160"></a>
<span class="sourceLineNo">161</span> case BLOOM_CHUNK:<a name="line.161"></a>
<span class="sourceLineNo">162</span> bloomChunkMissCount.increment();<a name="line.162"></a>
<span class="sourceLineNo">163</span> break;<a name="line.163"></a>
<span class="sourceLineNo">164</span> case META:<a name="line.164"></a>
<span class="sourceLineNo">165</span> metaMissCount.increment();<a name="line.165"></a>
<span class="sourceLineNo">166</span> break;<a name="line.166"></a>
<span class="sourceLineNo">167</span> case INTERMEDIATE_INDEX:<a name="line.167"></a>
<span class="sourceLineNo">168</span> intermediateIndexMissCount.increment();<a name="line.168"></a>
<span class="sourceLineNo">169</span> break;<a name="line.169"></a>
<span class="sourceLineNo">170</span> case ROOT_INDEX:<a name="line.170"></a>
<span class="sourceLineNo">171</span> rootIndexMissCount.increment();<a name="line.171"></a>
<span class="sourceLineNo">172</span> break;<a name="line.172"></a>
<span class="sourceLineNo">173</span> case FILE_INFO:<a name="line.173"></a>
<span class="sourceLineNo">174</span> fileInfoMissCount.increment();<a name="line.174"></a>
<span class="sourceLineNo">175</span> break;<a name="line.175"></a>
<span class="sourceLineNo">176</span> case GENERAL_BLOOM_META:<a name="line.176"></a>
<span class="sourceLineNo">177</span> generalBloomMetaMissCount.increment();<a name="line.177"></a>
<span class="sourceLineNo">178</span> break;<a name="line.178"></a>
<span class="sourceLineNo">179</span> case DELETE_FAMILY_BLOOM_META:<a name="line.179"></a>
<span class="sourceLineNo">180</span> deleteFamilyBloomMissCount.increment();<a name="line.180"></a>
<span class="sourceLineNo">181</span> break;<a name="line.181"></a>
<span class="sourceLineNo">182</span> case TRAILER:<a name="line.182"></a>
<span class="sourceLineNo">183</span> trailerMissCount.increment();<a name="line.183"></a>
<span class="sourceLineNo">184</span> break;<a name="line.184"></a>
<span class="sourceLineNo">185</span> default:<a name="line.185"></a>
<span class="sourceLineNo">186</span> // If there's a new type that's fine<a name="line.186"></a>
<span class="sourceLineNo">187</span> // Ignore it for now. This is metrics don't exception.<a name="line.187"></a>
<span class="sourceLineNo">188</span> break;<a name="line.188"></a>
<span class="sourceLineNo">189</span> }<a name="line.189"></a>
<span class="sourceLineNo">190</span> }<a name="line.190"></a>
<span class="sourceLineNo">191</span><a name="line.191"></a>
<span class="sourceLineNo">192</span> public void hit(boolean caching, boolean primary, BlockType type) {<a name="line.192"></a>
<span class="sourceLineNo">193</span> hitCount.increment();<a name="line.193"></a>
<span class="sourceLineNo">194</span> if (primary) primaryHitCount.increment();<a name="line.194"></a>
<span class="sourceLineNo">195</span> if (caching) hitCachingCount.increment();<a name="line.195"></a>
<span class="sourceLineNo">196</span><a name="line.196"></a>
<span class="sourceLineNo">197</span> if (type == null) {<a name="line.197"></a>
<span class="sourceLineNo">198</span> return;<a name="line.198"></a>
<span class="sourceLineNo">199</span> }<a name="line.199"></a>
<span class="sourceLineNo">200</span> switch (type) {<a name="line.200"></a>
<span class="sourceLineNo">201</span> case DATA:<a name="line.201"></a>
<span class="sourceLineNo">202</span> case ENCODED_DATA:<a name="line.202"></a>
<span class="sourceLineNo">203</span> dataHitCount.increment();<a name="line.203"></a>
<span class="sourceLineNo">204</span> break;<a name="line.204"></a>
<span class="sourceLineNo">205</span> case LEAF_INDEX:<a name="line.205"></a>
<span class="sourceLineNo">206</span> leafIndexHitCount.increment();<a name="line.206"></a>
<span class="sourceLineNo">207</span> break;<a name="line.207"></a>
<span class="sourceLineNo">208</span> case BLOOM_CHUNK:<a name="line.208"></a>
<span class="sourceLineNo">209</span> bloomChunkHitCount.increment();<a name="line.209"></a>
<span class="sourceLineNo">210</span> break;<a name="line.210"></a>
<span class="sourceLineNo">211</span> case META:<a name="line.211"></a>
<span class="sourceLineNo">212</span> metaHitCount.increment();<a name="line.212"></a>
<span class="sourceLineNo">213</span> break;<a name="line.213"></a>
<span class="sourceLineNo">214</span> case INTERMEDIATE_INDEX:<a name="line.214"></a>
<span class="sourceLineNo">215</span> intermediateIndexHitCount.increment();<a name="line.215"></a>
<span class="sourceLineNo">216</span> break;<a name="line.216"></a>
<span class="sourceLineNo">217</span> case ROOT_INDEX:<a name="line.217"></a>
<span class="sourceLineNo">218</span> rootIndexHitCount.increment();<a name="line.218"></a>
<span class="sourceLineNo">219</span> break;<a name="line.219"></a>
<span class="sourceLineNo">220</span> case FILE_INFO:<a name="line.220"></a>
<span class="sourceLineNo">221</span> fileInfoHitCount.increment();<a name="line.221"></a>
<span class="sourceLineNo">222</span> break;<a name="line.222"></a>
<span class="sourceLineNo">223</span> case GENERAL_BLOOM_META:<a name="line.223"></a>
<span class="sourceLineNo">224</span> generalBloomMetaHitCount.increment();<a name="line.224"></a>
<span class="sourceLineNo">225</span> break;<a name="line.225"></a>
<span class="sourceLineNo">226</span> case DELETE_FAMILY_BLOOM_META:<a name="line.226"></a>
<span class="sourceLineNo">227</span> deleteFamilyBloomHitCount.increment();<a name="line.227"></a>
<span class="sourceLineNo">228</span> break;<a name="line.228"></a>
<span class="sourceLineNo">229</span> case TRAILER:<a name="line.229"></a>
<span class="sourceLineNo">230</span> trailerHitCount.increment();<a name="line.230"></a>
<span class="sourceLineNo">231</span> break;<a name="line.231"></a>
<span class="sourceLineNo">232</span> default:<a name="line.232"></a>
<span class="sourceLineNo">233</span> // If there's a new type that's fine<a name="line.233"></a>
<span class="sourceLineNo">234</span> // Ignore it for now. This is metrics don't exception.<a name="line.234"></a>
<span class="sourceLineNo">235</span> break;<a name="line.235"></a>
<span class="sourceLineNo">236</span> }<a name="line.236"></a>
<span class="sourceLineNo">237</span> }<a name="line.237"></a>
<span class="sourceLineNo">238</span><a name="line.238"></a>
<span class="sourceLineNo">239</span> public void evict() {<a name="line.239"></a>
<span class="sourceLineNo">240</span> evictionCount.increment();<a name="line.240"></a>
<span class="sourceLineNo">241</span> }<a name="line.241"></a>
<span class="sourceLineNo">242</span><a name="line.242"></a>
<span class="sourceLineNo">243</span> public void evicted(final long t, boolean primary) {<a name="line.243"></a>
<span class="sourceLineNo">244</span> if (t &gt; this.startTime) {<a name="line.244"></a>
<span class="sourceLineNo">245</span> this.ageAtEviction.add((t - this.startTime) / BlockCacheUtil.NANOS_PER_SECOND, 1);<a name="line.245"></a>
<span class="sourceLineNo">246</span> }<a name="line.246"></a>
<span class="sourceLineNo">247</span> this.evictedBlockCount.increment();<a name="line.247"></a>
<span class="sourceLineNo">248</span> if (primary) {<a name="line.248"></a>
<span class="sourceLineNo">249</span> primaryEvictedBlockCount.increment();<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> public long failInsert() {<a name="line.253"></a>
<span class="sourceLineNo">254</span> return failedInserts.incrementAndGet();<a name="line.254"></a>
<span class="sourceLineNo">255</span> }<a name="line.255"></a>
<span class="sourceLineNo">256</span><a name="line.256"></a>
<span class="sourceLineNo">257</span> // All of the counts of misses and hits.<a name="line.257"></a>
<span class="sourceLineNo">258</span> public long getDataMissCount() {<a name="line.258"></a>
<span class="sourceLineNo">259</span> return dataMissCount.sum();<a name="line.259"></a>
<span class="sourceLineNo">260</span> }<a name="line.260"></a>
<span class="sourceLineNo">261</span><a name="line.261"></a>
<span class="sourceLineNo">262</span> public long getLeafIndexMissCount() {<a name="line.262"></a>
<span class="sourceLineNo">263</span> return leafIndexMissCount.sum();<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> public long getBloomChunkMissCount() {<a name="line.266"></a>
<span class="sourceLineNo">267</span> return bloomChunkMissCount.sum();<a name="line.267"></a>
<span class="sourceLineNo">268</span> }<a name="line.268"></a>
<span class="sourceLineNo">269</span><a name="line.269"></a>
<span class="sourceLineNo">270</span> public long getMetaMissCount() {<a name="line.270"></a>
<span class="sourceLineNo">271</span> return metaMissCount.sum();<a name="line.271"></a>
<span class="sourceLineNo">272</span> }<a name="line.272"></a>
<span class="sourceLineNo">273</span><a name="line.273"></a>
<span class="sourceLineNo">274</span> public long getRootIndexMissCount() {<a name="line.274"></a>
<span class="sourceLineNo">275</span> return rootIndexMissCount.sum();<a name="line.275"></a>
<span class="sourceLineNo">276</span> }<a name="line.276"></a>
<span class="sourceLineNo">277</span><a name="line.277"></a>
<span class="sourceLineNo">278</span> public long getIntermediateIndexMissCount() {<a name="line.278"></a>
<span class="sourceLineNo">279</span> return intermediateIndexMissCount.sum();<a name="line.279"></a>
<span class="sourceLineNo">280</span> }<a name="line.280"></a>
<span class="sourceLineNo">281</span><a name="line.281"></a>
<span class="sourceLineNo">282</span> public long getFileInfoMissCount() {<a name="line.282"></a>
<span class="sourceLineNo">283</span> return fileInfoMissCount.sum();<a name="line.283"></a>
<span class="sourceLineNo">284</span> }<a name="line.284"></a>
<span class="sourceLineNo">285</span><a name="line.285"></a>
<span class="sourceLineNo">286</span> public long getGeneralBloomMetaMissCount() {<a name="line.286"></a>
<span class="sourceLineNo">287</span> return generalBloomMetaMissCount.sum();<a name="line.287"></a>
<span class="sourceLineNo">288</span> }<a name="line.288"></a>
<span class="sourceLineNo">289</span><a name="line.289"></a>
<span class="sourceLineNo">290</span> public long getDeleteFamilyBloomMissCount() {<a name="line.290"></a>
<span class="sourceLineNo">291</span> return deleteFamilyBloomMissCount.sum();<a name="line.291"></a>
<span class="sourceLineNo">292</span> }<a name="line.292"></a>
<span class="sourceLineNo">293</span><a name="line.293"></a>
<span class="sourceLineNo">294</span> public long getTrailerMissCount() {<a name="line.294"></a>
<span class="sourceLineNo">295</span> return trailerMissCount.sum();<a name="line.295"></a>
<span class="sourceLineNo">296</span> }<a name="line.296"></a>
<span class="sourceLineNo">297</span><a name="line.297"></a>
<span class="sourceLineNo">298</span> public long getDataHitCount() {<a name="line.298"></a>
<span class="sourceLineNo">299</span> return dataHitCount.sum();<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> public long getLeafIndexHitCount() {<a name="line.302"></a>
<span class="sourceLineNo">303</span> return leafIndexHitCount.sum();<a name="line.303"></a>
<span class="sourceLineNo">304</span> }<a name="line.304"></a>
<span class="sourceLineNo">305</span><a name="line.305"></a>
<span class="sourceLineNo">306</span> public long getBloomChunkHitCount() {<a name="line.306"></a>
<span class="sourceLineNo">307</span> return bloomChunkHitCount.sum();<a name="line.307"></a>
<span class="sourceLineNo">308</span> }<a name="line.308"></a>
<span class="sourceLineNo">309</span><a name="line.309"></a>
<span class="sourceLineNo">310</span> public long getMetaHitCount() {<a name="line.310"></a>
<span class="sourceLineNo">311</span> return metaHitCount.sum();<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> public long getRootIndexHitCount() {<a name="line.314"></a>
<span class="sourceLineNo">315</span> return rootIndexHitCount.sum();<a name="line.315"></a>
<span class="sourceLineNo">316</span> }<a name="line.316"></a>
<span class="sourceLineNo">317</span><a name="line.317"></a>
<span class="sourceLineNo">318</span> public long getIntermediateIndexHitCount() {<a name="line.318"></a>
<span class="sourceLineNo">319</span> return intermediateIndexHitCount.sum();<a name="line.319"></a>
<span class="sourceLineNo">320</span> }<a name="line.320"></a>
<span class="sourceLineNo">321</span><a name="line.321"></a>
<span class="sourceLineNo">322</span> public long getFileInfoHitCount() {<a name="line.322"></a>
<span class="sourceLineNo">323</span> return fileInfoHitCount.sum();<a name="line.323"></a>
<span class="sourceLineNo">324</span> }<a name="line.324"></a>
<span class="sourceLineNo">325</span><a name="line.325"></a>
<span class="sourceLineNo">326</span> public long getGeneralBloomMetaHitCount() {<a name="line.326"></a>
<span class="sourceLineNo">327</span> return generalBloomMetaHitCount.sum();<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> public long getDeleteFamilyBloomHitCount() {<a name="line.330"></a>
<span class="sourceLineNo">331</span> return deleteFamilyBloomHitCount.sum();<a name="line.331"></a>
<span class="sourceLineNo">332</span> }<a name="line.332"></a>
<span class="sourceLineNo">333</span><a name="line.333"></a>
<span class="sourceLineNo">334</span> public long getTrailerHitCount() {<a name="line.334"></a>
<span class="sourceLineNo">335</span> return trailerHitCount.sum();<a name="line.335"></a>
<span class="sourceLineNo">336</span> }<a name="line.336"></a>
<span class="sourceLineNo">337</span><a name="line.337"></a>
<span class="sourceLineNo">338</span> public long getRequestCount() {<a name="line.338"></a>
<span class="sourceLineNo">339</span> return getHitCount() + getMissCount();<a name="line.339"></a>
<span class="sourceLineNo">340</span> }<a name="line.340"></a>
<span class="sourceLineNo">341</span><a name="line.341"></a>
<span class="sourceLineNo">342</span> public long getRequestCachingCount() {<a name="line.342"></a>
<span class="sourceLineNo">343</span> return getHitCachingCount() + getMissCachingCount();<a name="line.343"></a>
<span class="sourceLineNo">344</span> }<a name="line.344"></a>
<span class="sourceLineNo">345</span><a name="line.345"></a>
<span class="sourceLineNo">346</span> public long getMissCount() {<a name="line.346"></a>
<span class="sourceLineNo">347</span> return missCount.sum();<a name="line.347"></a>
<span class="sourceLineNo">348</span> }<a name="line.348"></a>
<span class="sourceLineNo">349</span><a name="line.349"></a>
<span class="sourceLineNo">350</span> public long getPrimaryMissCount() {<a name="line.350"></a>
<span class="sourceLineNo">351</span> return primaryMissCount.sum();<a name="line.351"></a>
<span class="sourceLineNo">352</span> }<a name="line.352"></a>
<span class="sourceLineNo">353</span><a name="line.353"></a>
<span class="sourceLineNo">354</span> public long getMissCachingCount() {<a name="line.354"></a>
<span class="sourceLineNo">355</span> return missCachingCount.sum();<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> public long getHitCount() {<a name="line.358"></a>
<span class="sourceLineNo">359</span> return hitCount.sum();<a name="line.359"></a>
<span class="sourceLineNo">360</span> }<a name="line.360"></a>
<span class="sourceLineNo">361</span><a name="line.361"></a>
<span class="sourceLineNo">362</span> public long getPrimaryHitCount() {<a name="line.362"></a>
<span class="sourceLineNo">363</span> return primaryHitCount.sum();<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> public long getHitCachingCount() {<a name="line.366"></a>
<span class="sourceLineNo">367</span> return hitCachingCount.sum();<a name="line.367"></a>
<span class="sourceLineNo">368</span> }<a name="line.368"></a>
<span class="sourceLineNo">369</span><a name="line.369"></a>
<span class="sourceLineNo">370</span> public long getEvictionCount() {<a name="line.370"></a>
<span class="sourceLineNo">371</span> return evictionCount.sum();<a name="line.371"></a>
<span class="sourceLineNo">372</span> }<a name="line.372"></a>
<span class="sourceLineNo">373</span><a name="line.373"></a>
<span class="sourceLineNo">374</span> public long getEvictedCount() {<a name="line.374"></a>
<span class="sourceLineNo">375</span> return this.evictedBlockCount.sum();<a name="line.375"></a>
<span class="sourceLineNo">376</span> }<a name="line.376"></a>
<span class="sourceLineNo">377</span><a name="line.377"></a>
<span class="sourceLineNo">378</span> public long getPrimaryEvictedCount() {<a name="line.378"></a>
<span class="sourceLineNo">379</span> return primaryEvictedBlockCount.sum();<a name="line.379"></a>
<span class="sourceLineNo">380</span> }<a name="line.380"></a>
<span class="sourceLineNo">381</span><a name="line.381"></a>
<span class="sourceLineNo">382</span> public double getHitRatio() {<a name="line.382"></a>
<span class="sourceLineNo">383</span> double requestCount = getRequestCount();<a name="line.383"></a>
<span class="sourceLineNo">384</span><a name="line.384"></a>
<span class="sourceLineNo">385</span> if (requestCount == 0) {<a name="line.385"></a>
<span class="sourceLineNo">386</span> return 0;<a name="line.386"></a>
<span class="sourceLineNo">387</span> }<a name="line.387"></a>
<span class="sourceLineNo">388</span><a name="line.388"></a>
<span class="sourceLineNo">389</span> return getHitCount() / requestCount;<a name="line.389"></a>
<span class="sourceLineNo">390</span> }<a name="line.390"></a>
<span class="sourceLineNo">391</span><a name="line.391"></a>
<span class="sourceLineNo">392</span> public double getHitCachingRatio() {<a name="line.392"></a>
<span class="sourceLineNo">393</span> double requestCachingCount = getRequestCachingCount();<a name="line.393"></a>
<span class="sourceLineNo">394</span><a name="line.394"></a>
<span class="sourceLineNo">395</span> if (requestCachingCount == 0) {<a name="line.395"></a>
<span class="sourceLineNo">396</span> return 0;<a name="line.396"></a>
<span class="sourceLineNo">397</span> }<a name="line.397"></a>
<span class="sourceLineNo">398</span><a name="line.398"></a>
<span class="sourceLineNo">399</span> return getHitCachingCount() / requestCachingCount;<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> public double getMissRatio() {<a name="line.402"></a>
<span class="sourceLineNo">403</span> double requestCount = getRequestCount();<a name="line.403"></a>
<span class="sourceLineNo">404</span><a name="line.404"></a>
<span class="sourceLineNo">405</span> if (requestCount == 0) {<a name="line.405"></a>
<span class="sourceLineNo">406</span> return 0;<a name="line.406"></a>
<span class="sourceLineNo">407</span> }<a name="line.407"></a>
<span class="sourceLineNo">408</span><a name="line.408"></a>
<span class="sourceLineNo">409</span> return getMissCount() / requestCount;<a name="line.409"></a>
<span class="sourceLineNo">410</span> }<a name="line.410"></a>
<span class="sourceLineNo">411</span><a name="line.411"></a>
<span class="sourceLineNo">412</span> public double getMissCachingRatio() {<a name="line.412"></a>
<span class="sourceLineNo">413</span> double requestCachingCount = getRequestCachingCount();<a name="line.413"></a>
<span class="sourceLineNo">414</span><a name="line.414"></a>
<span class="sourceLineNo">415</span> if (requestCachingCount == 0) {<a name="line.415"></a>
<span class="sourceLineNo">416</span> return 0;<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> return getMissCachingCount() / requestCachingCount;<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> public double evictedPerEviction() {<a name="line.422"></a>
<span class="sourceLineNo">423</span> double evictionCount = getEvictionCount();<a name="line.423"></a>
<span class="sourceLineNo">424</span><a name="line.424"></a>
<span class="sourceLineNo">425</span> if (evictionCount == 0) {<a name="line.425"></a>
<span class="sourceLineNo">426</span> return 0;<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> return getEvictedCount() / evictionCount;<a name="line.429"></a>
<span class="sourceLineNo">430</span> }<a name="line.430"></a>
<span class="sourceLineNo">431</span><a name="line.431"></a>
<span class="sourceLineNo">432</span> public long getFailedInserts() {<a name="line.432"></a>
<span class="sourceLineNo">433</span> return failedInserts.get();<a name="line.433"></a>
<span class="sourceLineNo">434</span> }<a name="line.434"></a>
<span class="sourceLineNo">435</span><a name="line.435"></a>
<span class="sourceLineNo">436</span> public void rollMetricsPeriod() {<a name="line.436"></a>
<span class="sourceLineNo">437</span> hitCounts[windowIndex] = getHitCount() - lastHitCount;<a name="line.437"></a>
<span class="sourceLineNo">438</span> lastHitCount = getHitCount();<a name="line.438"></a>
<span class="sourceLineNo">439</span> hitCachingCounts[windowIndex] = getHitCachingCount() - lastHitCachingCount;<a name="line.439"></a>
<span class="sourceLineNo">440</span> lastHitCachingCount = getHitCachingCount();<a name="line.440"></a>
<span class="sourceLineNo">441</span> requestCounts[windowIndex] = getRequestCount() - lastRequestCount;<a name="line.441"></a>
<span class="sourceLineNo">442</span> lastRequestCount = getRequestCount();<a name="line.442"></a>
<span class="sourceLineNo">443</span> requestCachingCounts[windowIndex] = getRequestCachingCount() - lastRequestCachingCount;<a name="line.443"></a>
<span class="sourceLineNo">444</span> lastRequestCachingCount = getRequestCachingCount();<a name="line.444"></a>
<span class="sourceLineNo">445</span> windowIndex = (windowIndex + 1) % numPeriodsInWindow;<a name="line.445"></a>
<span class="sourceLineNo">446</span> }<a name="line.446"></a>
<span class="sourceLineNo">447</span><a name="line.447"></a>
<span class="sourceLineNo">448</span> public long getSumHitCountsPastNPeriods() {<a name="line.448"></a>
<span class="sourceLineNo">449</span> return sum(hitCounts);<a name="line.449"></a>
<span class="sourceLineNo">450</span> }<a name="line.450"></a>
<span class="sourceLineNo">451</span><a name="line.451"></a>
<span class="sourceLineNo">452</span> public long getSumRequestCountsPastNPeriods() {<a name="line.452"></a>
<span class="sourceLineNo">453</span> return sum(requestCounts);<a name="line.453"></a>
<span class="sourceLineNo">454</span> }<a name="line.454"></a>
<span class="sourceLineNo">455</span><a name="line.455"></a>
<span class="sourceLineNo">456</span> public long getSumHitCachingCountsPastNPeriods() {<a name="line.456"></a>
<span class="sourceLineNo">457</span> return sum(hitCachingCounts);<a name="line.457"></a>
<span class="sourceLineNo">458</span> }<a name="line.458"></a>
<span class="sourceLineNo">459</span><a name="line.459"></a>
<span class="sourceLineNo">460</span> public long getSumRequestCachingCountsPastNPeriods() {<a name="line.460"></a>
<span class="sourceLineNo">461</span> return sum(requestCachingCounts);<a name="line.461"></a>
<span class="sourceLineNo">462</span> }<a name="line.462"></a>
<span class="sourceLineNo">463</span><a name="line.463"></a>
<span class="sourceLineNo">464</span> public double getHitRatioPastNPeriods() {<a name="line.464"></a>
<span class="sourceLineNo">465</span> double ratio =<a name="line.465"></a>
<span class="sourceLineNo">466</span> ((double) getSumHitCountsPastNPeriods() / (double) getSumRequestCountsPastNPeriods());<a name="line.466"></a>
<span class="sourceLineNo">467</span> return Double.isNaN(ratio) ? 0 : ratio;<a name="line.467"></a>
<span class="sourceLineNo">468</span> }<a name="line.468"></a>
<span class="sourceLineNo">469</span><a name="line.469"></a>
<span class="sourceLineNo">470</span> public double getHitCachingRatioPastNPeriods() {<a name="line.470"></a>
<span class="sourceLineNo">471</span> double ratio = ((double) getSumHitCachingCountsPastNPeriods()<a name="line.471"></a>
<span class="sourceLineNo">472</span> / (double) getSumRequestCachingCountsPastNPeriods());<a name="line.472"></a>
<span class="sourceLineNo">473</span> return Double.isNaN(ratio) ? 0 : ratio;<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> public AgeSnapshot getAgeAtEvictionSnapshot() {<a name="line.476"></a>
<span class="sourceLineNo">477</span> return new AgeSnapshot(this.ageAtEviction);<a name="line.477"></a>
<span class="sourceLineNo">478</span> }<a name="line.478"></a>
<span class="sourceLineNo">479</span><a name="line.479"></a>
<span class="sourceLineNo">480</span> private static long sum(long[] counts) {<a name="line.480"></a>
<span class="sourceLineNo">481</span> return Arrays.stream(counts).sum();<a name="line.481"></a>
<span class="sourceLineNo">482</span> }<a name="line.482"></a>
<span class="sourceLineNo">483</span>}<a name="line.483"></a>
</pre>
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