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 <div class="subTitle">org.apache.hadoop.hbase.client</div>
 <h2 title="Class MetricsConnection" class="title">Class MetricsConnection</h2>
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 <ul class="inheritance">
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 <dd><a href="../../../../../org/apache/hadoop/hbase/client/StatisticTrackable.html" title="interface in org.apache.hadoop.hbase.client">StatisticTrackable</a></dd>
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 <pre>@InterfaceAudience.Private
 public final class <a href="../../../../../src-html/org/apache/hadoop/hbase/client/MetricsConnection.html#line.62">MetricsConnection</a>
 extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
 implements <a href="../../../../../org/apache/hadoop/hbase/client/StatisticTrackable.html" title="interface in org.apache.hadoop.hbase.client">StatisticTrackable</a></pre>
 <div class="block">This class is for maintaining the various connection statistics and publishing them through the
  metrics interfaces. This class manages its own <code>MetricRegistry</code> and <code>JmxReporter</code> so
  as to not conflict with other uses of Yammer Metrics within the client application. Calling
  <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getMetricsConnection-org.apache.hadoop.conf.Configuration-java.lang.String-java.util.function.Supplier-java.util.function.Supplier-"><code>getMetricsConnection(Configuration, String, Supplier, Supplier)</code></a> implicitly creates and
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  terminate the thread pools they allocate. The metrics reporter will be shutdown
  <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#shutdown--"><code>shutdown()</code></a> when all connections within this metrics instances are closed.</div>
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 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Class and Description</th>
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 <tr class="altColor">
 <td class="colFirst"><code>static class&nbsp;</code></td>
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 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallTracker.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallTracker</a></code></td>
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 <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Supplier.html?is-external=true" title="class or interface in java.util.function">Supplier</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ThreadPoolExecutor.html?is-external=true" title="class or interface in java.util.concurrent">ThreadPoolExecutor</a>&gt;&gt;</code></td>
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 <td class="colFirst"><code>private static int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#CAPACITY">CAPACITY</a></span></code>
 <div class="block">Anticipated number of metric entries</div>
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 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
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 <div class="block">Set this key to <code>true</code> to enable metrics collection of client requests.</div>
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 <div class="block">Set this key to <code>true</code> to enable table metrics collection of client requests.</div>
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 <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#CLIENT_SVC">CLIENT_SVC</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#CNT_BASE">CNT_BASE</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private static int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#CONCURRENCY_LEVEL">CONCURRENCY_LEVEL</a></span></code>
 <div class="block">Anticipated number of concurrent accessor threads</div>
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 <td class="colFirst"><code>private com.codahale.metrics.Histogram</code></td>
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 <td class="colFirst"><code>private com.codahale.metrics.Counter</code></td>
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 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.NewMetric.html" title="interface in org.apache.hadoop.hbase.client">MetricsConnection.NewMetric</a>&lt;com.codahale.metrics.Counter&gt;</code></td>
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 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallTracker.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallTracker</a></code></td>
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 <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#DRTN_BASE">DRTN_BASE</a></span></code>&nbsp;</td>
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 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#FAILURE_CNT_BASE">FAILURE_CNT_BASE</a></span></code>&nbsp;</td>
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 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getTracker">getTracker</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
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 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallTracker.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallTracker</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrementTracker">incrementTracker</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private static float</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#LOAD_FACTOR">LOAD_FACTOR</a></span></code>
 <div class="block">Default load factor from <a href="https://docs.oracle.com/javase/8/docs/api/java/util/HashMap.html?is-external=true#DEFAULT_LOAD_FACTOR" title="class or interface in java.util"><code>HashMap.DEFAULT_LOAD_FACTOR</code></a></div>
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 <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#LOCAL_EXCEPTION_CNT_BASE">LOCAL_EXCEPTION_CNT_BASE</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private com.codahale.metrics.Counter</code></td>
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 <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Supplier.html?is-external=true" title="class or interface in java.util.function">Supplier</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ThreadPoolExecutor.html?is-external=true" title="class or interface in java.util.concurrent">ThreadPoolExecutor</a>&gt;&gt;</code></td>
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 <div class="block">Set to specify a custom scope for the metrics published through <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html" title="class in org.apache.hadoop.hbase.client"><code>MetricsConnection</code></a>.</div>
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 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#NS_LOOKUPS">NS_LOOKUPS</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#NS_LOOKUPS_FAILED">NS_LOOKUPS_FAILED</a></span></code>&nbsp;</td>
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 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#numActionsPerServerHist">numActionsPerServerHist</a></span></code>&nbsp;</td>
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 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#overloadedBackoffTimer">overloadedBackoffTimer</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallTracker.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallTracker</a></code></td>
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 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#registry">registry</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#REMOTE_EXCEPTION_CNT_BASE">REMOTE_EXCEPTION_CNT_BASE</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
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 <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,com.codahale.metrics.Histogram&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#rpcHistograms">rpcHistograms</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,com.codahale.metrics.Timer&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#rpcTimers">rpcTimers</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.RunnerStats.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.RunnerStats</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#runnerStats">runnerStats</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallTracker.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallTracker</a></code></td>
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 <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#scope">scope</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentHashMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentHashMap</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a>&lt;byte[],<a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.RegionStats.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.RegionStats</a>&gt;&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#serverStats">serverStats</a></span></code>&nbsp;</td>
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 <tr class="altColor">
 <td class="colFirst"><code>private boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#tableMetricsEnabled">tableMetricsEnabled</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.NewMetric.html" title="interface in org.apache.hadoop.hbase.client">MetricsConnection.NewMetric</a>&lt;com.codahale.metrics.Timer&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#timerFactory">timerFactory</a></span></code>&nbsp;</td>
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 <tr class="altColor">
 <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#TOTAL_EXCEPTION_CNT">TOTAL_EXCEPTION_CNT</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#UNKNOWN_EXCEPTION">UNKNOWN_EXCEPTION</a></span></code>&nbsp;</td>
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 <h3>Constructor Summary</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
 <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier</th>
 <th class="colLast" scope="col">Constructor and Description</th>
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 <td class="colFirst"><code>private </code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#MetricsConnection-org.apache.hadoop.conf.Configuration-java.lang.String-java.util.function.Supplier-java.util.function.Supplier-">MetricsConnection</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf,
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 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Method and Description</th>
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 <td class="colFirst"><code>private void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#addThreadPools-java.util.function.Supplier-java.util.function.Supplier-">addThreadPools</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Supplier.html?is-external=true" title="class or interface in java.util.function">Supplier</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ThreadPoolExecutor.html?is-external=true" title="class or interface in java.util.concurrent">ThreadPoolExecutor</a>&gt;&nbsp;batchPool,
               <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Supplier.html?is-external=true" title="class or interface in java.util.function">Supplier</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ThreadPoolExecutor.html?is-external=true" title="class or interface in java.util.concurrent">ThreadPoolExecutor</a>&gt;&nbsp;metaPool)</code>
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 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>private void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#decrConnectionCount--">decrConnectionCount</a></span>()</code>
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 <td class="colFirst"><code>(package private) static void</code></td>
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 <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallTracker.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallTracker</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getAppendTracker--">getAppendTracker</a></span>()</code>
 <div class="block">appendTracker metric</div>
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 <tr id="i4" class="altColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getConnectionCount--">getConnectionCount</a></span>()</code>
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 <tr id="i5" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallTracker.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallTracker</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getDeleteTracker--">getDeleteTracker</a></span>()</code>
 <div class="block">deleteTracker metric</div>
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 <tr id="i6" class="altColor">
 <td class="colFirst"><code>(package private) <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
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 <tr id="i7" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallTracker.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallTracker</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getGetTracker--">getGetTracker</a></span>()</code>
 <div class="block">getTracker metric</div>
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 <tr id="i8" class="altColor">
 <td class="colFirst"><code>com.codahale.metrics.Counter</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getHedgedReadOps--">getHedgedReadOps</a></span>()</code>
 <div class="block">hedgedReadOps metric</div>
 </td>
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 <tr id="i9" class="rowColor">
 <td class="colFirst"><code>com.codahale.metrics.Counter</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getHedgedReadWin--">getHedgedReadWin</a></span>()</code>
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 <tr id="i10" class="altColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallTracker.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallTracker</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getIncrementTracker--">getIncrementTracker</a></span>()</code>
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 <tr id="i11" class="rowColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getMetaCacheMisses--">getMetaCacheMisses</a></span>()</code>&nbsp;</td>
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 <tr id="i12" class="altColor">
 <td class="colFirst"><code>com.codahale.metrics.Counter</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getMetaCacheNumClearRegion--">getMetaCacheNumClearRegion</a></span>()</code>
 <div class="block">metaCacheNumClearRegion metric</div>
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 <tr id="i13" class="rowColor">
 <td class="colFirst"><code>com.codahale.metrics.Counter</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getMetaCacheNumClearServer--">getMetaCacheNumClearServer</a></span>()</code>
 <div class="block">metaCacheNumClearServer metric</div>
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 <tr id="i14" class="altColor">
 <td class="colFirst"><code>(package private) <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getMetaPoolName--">getMetaPoolName</a></span>()</code>&nbsp;</td>
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 <tr id="i15" class="rowColor">
 <td class="colFirst"><code>private &lt;T&gt;&nbsp;T</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getMetric-java.lang.String-java.util.concurrent.ConcurrentMap-org.apache.hadoop.hbase.client.MetricsConnection.NewMetric-">getMetric</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;key,
          <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,T&gt;&nbsp;map,
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 <div class="block">Get a metric for <code>key</code> from <code>map</code>, or create it with <code>factory</code>.</div>
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 </tr>
 <tr id="i16" class="altColor">
 <td class="colFirst"><code>(package private) com.codahale.metrics.MetricRegistry</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getMetricRegistry--">getMetricRegistry</a></span>()</code>&nbsp;</td>
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 <tr id="i17" class="rowColor">
 <td class="colFirst"><code>(package private) static <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection</a></code></td>
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 </tr>
 <tr id="i18" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getMetricScope--">getMetricScope</a></span>()</code>
 <div class="block">scope of the metrics object</div>
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 </tr>
 <tr id="i19" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallTracker.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallTracker</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getMultiTracker--">getMultiTracker</a></span>()</code>
 <div class="block">multiTracker metric</div>
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 </tr>
 <tr id="i20" class="altColor">
 <td class="colFirst"><code>com.codahale.metrics.Histogram</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getNumActionsPerServerHist--">getNumActionsPerServerHist</a></span>()</code>
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 <tr id="i21" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallTracker.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallTracker</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getPutTracker--">getPutTracker</a></span>()</code>
 <div class="block">putTracker metric</div>
 </td>
 </tr>
 <tr id="i22" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,com.codahale.metrics.Counter&gt;</code></td>
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 <div class="block">rpcCounters metric</div>
 </td>
 </tr>
 <tr id="i23" class="rowColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,com.codahale.metrics.Histogram&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getRpcHistograms--">getRpcHistograms</a></span>()</code>
 <div class="block">rpcHistograms metric</div>
 </td>
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 <tr id="i24" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,com.codahale.metrics.Timer&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getRpcTimers--">getRpcTimers</a></span>()</code>
 <div class="block">rpcTimers metric</div>
 </td>
 </tr>
 <tr id="i25" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.RunnerStats.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.RunnerStats</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getRunnerStats--">getRunnerStats</a></span>()</code>
 <div class="block">runnerStats metric</div>
 </td>
 </tr>
 <tr id="i26" class="altColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallTracker.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallTracker</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getScanTracker--">getScanTracker</a></span>()</code>
 <div class="block">scanTracker metric</div>
 </td>
 </tr>
 <tr id="i27" class="rowColor">
 <td class="colFirst"><code>(package private) static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getScope-org.apache.hadoop.conf.Configuration-java.lang.String-java.lang.Object-">getScope</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf,
         <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;clusterId,
         <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;connectionObj)</code>
 <div class="block">Returns the scope for a MetricsConnection based on the configured <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#METRICS_SCOPE_KEY"><code>METRICS_SCOPE_KEY</code></a> or
  by generating a default from the passed clusterId and connectionObj's hashCode.</div>
 </td>
 </tr>
 <tr id="i28" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentHashMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentHashMap</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a>&lt;byte[],<a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.RegionStats.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.RegionStats</a>&gt;&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#getServerStats--">getServerStats</a></span>()</code>
 <div class="block">serverStats metric</div>
 </td>
 </tr>
 <tr id="i29" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrCacheDroppingExceptions-java.lang.Object-">incrCacheDroppingExceptions</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;exception)</code>&nbsp;</td>
 </tr>
 <tr id="i30" class="altColor">
 <td class="colFirst"><code>private void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrConnectionCount--">incrConnectionCount</a></span>()</code>
 <div class="block">Increment the connection count of the metrics within a scope</div>
 </td>
 </tr>
 <tr id="i31" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrDelayRunnersAndUpdateDelayInterval-long-">incrDelayRunnersAndUpdateDelayInterval</a></span>(long&nbsp;interval)</code>
 <div class="block">Increment the number of delay runner counts and update delay interval of delay runner.</div>
 </td>
 </tr>
 <tr id="i32" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrementServerOverloadedBackoffTime-long-java.util.concurrent.TimeUnit-">incrementServerOverloadedBackoffTime</a></span>(long&nbsp;time,
                                     <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</a>&nbsp;timeUnit)</code>
 <div class="block">Update the overloaded backoff time</div>
 </td>
 </tr>
 <tr id="i33" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrHedgedReadOps--">incrHedgedReadOps</a></span>()</code>
 <div class="block">Increment the number of hedged read that have occurred.</div>
 </td>
 </tr>
 <tr id="i34" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrHedgedReadWin--">incrHedgedReadWin</a></span>()</code>
 <div class="block">Increment the number of hedged read returned faster than the original read.</div>
 </td>
 </tr>
 <tr id="i35" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrMetaCacheHit--">incrMetaCacheHit</a></span>()</code>
 <div class="block">Increment the number of meta cache hits.</div>
 </td>
 </tr>
 <tr id="i36" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrMetaCacheMiss--">incrMetaCacheMiss</a></span>()</code>
 <div class="block">Increment the number of meta cache misses.</div>
 </td>
 </tr>
 <tr id="i37" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrMetaCacheNumClearRegion--">incrMetaCacheNumClearRegion</a></span>()</code>
 <div class="block">Increment the number of meta cache drops requested for individual region.</div>
 </td>
 </tr>
 <tr id="i38" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrMetaCacheNumClearRegion-int-">incrMetaCacheNumClearRegion</a></span>(int&nbsp;count)</code>
 <div class="block">Increment the number of meta cache drops requested for individual region.</div>
 </td>
 </tr>
 <tr id="i39" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrMetaCacheNumClearServer--">incrMetaCacheNumClearServer</a></span>()</code>
 <div class="block">Increment the number of meta cache drops requested for entire RegionServer.</div>
 </td>
 </tr>
 <tr id="i40" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrNormalRunners--">incrNormalRunners</a></span>()</code>
 <div class="block">Increment the number of normal runner counts.</div>
 </td>
 </tr>
 <tr id="i41" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrNsLookups--">incrNsLookups</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i42" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#incrNsLookupsFailed--">incrNsLookupsFailed</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i43" class="rowColor">
 <td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallStats.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallStats</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#newCallStats--">newCallStats</a></span>()</code>
 <div class="block">Produce an instance of <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallStats.html" title="class in org.apache.hadoop.hbase.client"><code>MetricsConnection.CallStats</code></a> for clients to attach to RPCs.</div>
 </td>
 </tr>
 <tr id="i44" class="altColor">
 <td class="colFirst"><code>private void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#shutdown--">shutdown</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i45" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#updateRegionStats-org.apache.hadoop.hbase.ServerName-byte:A-org.apache.hadoop.hbase.client.RegionLoadStats-">updateRegionStats</a></span>(<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>&nbsp;serverName,
                  byte[]&nbsp;regionName,
                  <a href="../../../../../org/apache/hadoop/hbase/client/RegionLoadStats.html" title="class in org.apache.hadoop.hbase.client">RegionLoadStats</a>&nbsp;stats)</code>
 <div class="block">Update stats per region.</div>
 </td>
 </tr>
 <tr id="i46" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#updateRpc-org.apache.hbase.thirdparty.com.google.protobuf.Descriptors.MethodDescriptor-org.apache.hadoop.hbase.TableName-org.apache.hbase.thirdparty.com.google.protobuf.Message-org.apache.hadoop.hbase.client.MetricsConnection.CallStats-java.lang.Throwable-">updateRpc</a></span>(org.apache.hbase.thirdparty.com.google.protobuf.Descriptors.MethodDescriptor&nbsp;method,
          <a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&nbsp;tableName,
          org.apache.hbase.thirdparty.com.google.protobuf.Message&nbsp;param,
          <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallStats.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallStats</a>&nbsp;stats,
          <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;e)</code>
 <div class="block">Report RPC context to metrics system.</div>
 </td>
 </tr>
 <tr id="i47" class="rowColor">
 <td class="colFirst"><code>private void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#updateRpcGeneric-java.lang.String-org.apache.hadoop.hbase.client.MetricsConnection.CallStats-">updateRpcGeneric</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;methodName,
                 <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallStats.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallStats</a>&nbsp;stats)</code>
 <div class="block">Update call stats for non-critical-path methods</div>
 </td>
 </tr>
 <tr id="i48" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#updateServerStats-org.apache.hadoop.hbase.ServerName-byte:A-java.lang.Object-">updateServerStats</a></span>(<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>&nbsp;serverName,
                  byte[]&nbsp;regionName,
                  <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;r)</code>&nbsp;</td>
 </tr>
 <tr id="i49" class="rowColor">
 <td class="colFirst"><code>private void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html#updateTableMetric-java.lang.String-org.apache.hadoop.hbase.TableName-org.apache.hadoop.hbase.client.MetricsConnection.CallStats-java.lang.Throwable-">updateTableMetric</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;methodName,
                  <a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&nbsp;tableName,
                  <a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.CallStats.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection.CallStats</a>&nbsp;stats,
                  <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;e)</code>
 <div class="block">Report table rpc context to metrics system.</div>
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 <pre>private static final&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="../../../../../org/apache/hadoop/hbase/client/MetricsConnection.html" title="class in org.apache.hadoop.hbase.client">MetricsConnection</a>&gt; <a href="../../../../../src-html/org/apache/hadoop/hbase/client/MetricsConnection.html#line.64">METRICS_INSTANCES</a></pre>
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 <div class="block">Set this key to <code>true</code> to enable metrics collection of client requests.</div>
 <dl>
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 <div class="block">Set this key to <code>true</code> to enable table metrics collection of client requests.</div>
 <dl>
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  may set this key to give a more contextual name for this scope. For example, one might want to
  differentiate a read connection from a write connection by setting the scopes to "foo-read" and
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  metrics may aggregate in unforeseen ways.</div>
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