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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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 <pre>@InterfaceAudience.Private
 public class <a href="../../../../../src-html/org/apache/hadoop/hbase/client/MetricsConnection.html#line.55">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. Instantiating
  this class implicitly creates and "starts" instances of these classes; be sure to call
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 <th class="colFirst" scope="col">Modifier and Type</th>
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 <td class="colFirst"><code>static class&nbsp;</code></td>
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 <div class="block">A container class for collecting details about the RPC call as it percolates.</div>
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 <td class="colFirst"><code>protected <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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 <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">Anticipated number of concurrent accessor threads</div>
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 <td class="colFirst"><code>protected <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#HEAP_BASE">HEAP_BASE</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>protected com.codahale.metrics.Counter</code></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>protected com.codahale.metrics.Counter</code></td>
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 <td class="colFirst"><code>protected <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#multiTracker">multiTracker</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">NS_LOOKUPS</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>protected com.codahale.metrics.Counter</code></td>
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 <td class="colFirst"><code>private com.codahale.metrics.JmxReporter</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#REQ_BASE">REQ_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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 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Method and Description</th>
 </tr>
 <tr id="i0" 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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 <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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 <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,
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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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 <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>
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 <tr id="i5" 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>
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 <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>
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 <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>
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 <tr id="i8" 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#incrMetaCacheHit--">incrMetaCacheHit</a></span>()</code>
 <div class="block">Increment the number of meta cache hits.</div>
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 <tr id="i9" 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#incrMetaCacheMiss--">incrMetaCacheMiss</a></span>()</code>
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 <div class="block">Increment the number of meta cache drops requested for individual region.</div>
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 <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>
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 <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>
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 <tr id="i13" 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#incrNormalRunners--">incrNormalRunners</a></span>()</code>
 <div class="block">Increment the number of normal runner counts.</div>
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 <tr id="i14" 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#incrNsLookups--">incrNsLookups</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#incrNsLookupsFailed--">incrNsLookupsFailed</a></span>()</code>&nbsp;</td>
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 <tr id="i16" class="altColor">
 <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>
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 <tr id="i17" class="rowColor">
 <td class="colFirst"><code>void</code></td>
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 <tr id="i18" class="altColor">
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 <tr id="i19" class="rowColor">
 <td class="colFirst"><code>void</code></td>
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 <td class="colFirst"><code>private void</code></td>
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 <div class="block">Update call stats for non-critical-path methods</div>
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 <tr id="i21" 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#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,
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