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| <h2 title="Interface MetricRegistry" class="title">Interface MetricRegistry</h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/metrics/Metric.html" title="interface in org.apache.hadoop.hbase.metrics">Metric</a>, <a href="../../../../../org/apache/hadoop/hbase/metrics/MetricSet.html" title="interface in org.apache.hadoop.hbase.metrics">MetricSet</a></dd> |
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| <dl> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/metrics/impl/MetricRegistryImpl.html" title="class in org.apache.hadoop.hbase.metrics.impl">MetricRegistryImpl</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>@InterfaceAudience.LimitedPrivate(value="Coprocesssor") |
| @InterfaceStability.Evolving |
| public interface <a href="../../../../../src-html/org/apache/hadoop/hbase/metrics/MetricRegistry.html#line.31">MetricRegistry</a> |
| extends <a href="../../../../../org/apache/hadoop/hbase/metrics/MetricSet.html" title="interface in org.apache.hadoop.hbase.metrics">MetricSet</a></pre> |
| <div class="block">General purpose factory for creating various metrics.</div> |
| </li> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <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><a href="../../../../../org/apache/hadoop/hbase/metrics/Counter.html" title="interface in org.apache.hadoop.hbase.metrics">Counter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/metrics/MetricRegistry.html#counter-java.lang.String-">counter</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> name)</code> |
| <div class="block">Get or construct a <a href="../../../../../org/apache/hadoop/hbase/metrics/Counter.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Counter</code></a> used to track a mutable number.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a><<a href="../../../../../org/apache/hadoop/hbase/metrics/Metric.html" title="interface in org.apache.hadoop.hbase.metrics">Metric</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/metrics/MetricRegistry.html#get-java.lang.String-">get</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> name)</code> |
| <div class="block">Returns previously registered metric with the name if any.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/metrics/MetricRegistryInfo.html" title="class in org.apache.hadoop.hbase.metrics">MetricRegistryInfo</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/metrics/MetricRegistry.html#getMetricRegistryInfo--">getMetricRegistryInfo</a></span>()</code> |
| <div class="block">Return the MetricRegistryInfo object for this registry.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/metrics/Histogram.html" title="interface in org.apache.hadoop.hbase.metrics">Histogram</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/metrics/MetricRegistry.html#histogram-java.lang.String-">histogram</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> name)</code> |
| <div class="block">Get or construct a <a href="../../../../../org/apache/hadoop/hbase/metrics/Histogram.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Histogram</code></a> used to measure a distribution of values.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/metrics/Meter.html" title="interface in org.apache.hadoop.hbase.metrics">Meter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/metrics/MetricRegistry.html#meter-java.lang.String-">meter</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> name)</code> |
| <div class="block">Get or construct a <a href="../../../../../org/apache/hadoop/hbase/metrics/Meter.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Meter</code></a> used to measure durations and report distributions (a |
| combination of a <a href="../../../../../org/apache/hadoop/hbase/metrics/Timer.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Timer</code></a> and a <a href="../../../../../org/apache/hadoop/hbase/metrics/Histogram.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Histogram</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><T> <a href="../../../../../org/apache/hadoop/hbase/metrics/Gauge.html" title="interface in org.apache.hadoop.hbase.metrics">Gauge</a><T></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/metrics/MetricRegistry.html#register-java.lang.String-org.apache.hadoop.hbase.metrics.Gauge-">register</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> name, |
| <a href="../../../../../org/apache/hadoop/hbase/metrics/Gauge.html" title="interface in org.apache.hadoop.hbase.metrics">Gauge</a><T> gauge)</code> |
| <div class="block">Register a <a href="../../../../../org/apache/hadoop/hbase/metrics/Gauge.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Gauge</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/metrics/Metric.html" title="interface in org.apache.hadoop.hbase.metrics">Metric</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/metrics/MetricRegistry.html#register-java.lang.String-org.apache.hadoop.hbase.metrics.Metric-">register</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> name, |
| <a href="../../../../../org/apache/hadoop/hbase/metrics/Metric.html" title="interface in org.apache.hadoop.hbase.metrics">Metric</a> metric)</code> |
| <div class="block">Registers the <a href="../../../../../org/apache/hadoop/hbase/metrics/Metric.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Metric</code></a> with the given name if there does not exist one with the same |
| name.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/metrics/MetricRegistry.html#registerAll-org.apache.hadoop.hbase.metrics.MetricSet-">registerAll</a></span>(<a href="../../../../../org/apache/hadoop/hbase/metrics/MetricSet.html" title="interface in org.apache.hadoop.hbase.metrics">MetricSet</a> metricSet)</code> |
| <div class="block">Registers the <a href="../../../../../org/apache/hadoop/hbase/metrics/Metric.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Metric</code></a>s in the given MetricSet.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/metrics/MetricRegistry.html#remove-java.lang.String-">remove</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> name)</code> |
| <div class="block">Removes the metric with the given name.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/metrics/Timer.html" title="interface in org.apache.hadoop.hbase.metrics">Timer</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/metrics/MetricRegistry.html#timer-java.lang.String-">timer</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> name)</code> |
| <div class="block">Get or construct a <a href="../../../../../org/apache/hadoop/hbase/metrics/Timer.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Timer</code></a> used to measure durations and report rates.</div> |
| </td> |
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| <h3>Methods inherited from interface org.apache.hadoop.hbase.metrics.<a href="../../../../../org/apache/hadoop/hbase/metrics/MetricSet.html" title="interface in org.apache.hadoop.hbase.metrics">MetricSet</a></h3> |
| <code><a href="../../../../../org/apache/hadoop/hbase/metrics/MetricSet.html#getMetrics--">getMetrics</a></code></li> |
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| <h4>timer</h4> |
| <pre><a href="../../../../../org/apache/hadoop/hbase/metrics/Timer.html" title="interface in org.apache.hadoop.hbase.metrics">Timer</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/metrics/MetricRegistry.html#line.39">timer</a>(<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> name)</pre> |
| <div class="block">Get or construct a <a href="../../../../../org/apache/hadoop/hbase/metrics/Timer.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Timer</code></a> used to measure durations and report rates.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - the name of the timer.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>An instance of <a href="../../../../../org/apache/hadoop/hbase/metrics/Timer.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Timer</code></a>.</dd> |
| </dl> |
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| <h4>histogram</h4> |
| <pre><a href="../../../../../org/apache/hadoop/hbase/metrics/Histogram.html" title="interface in org.apache.hadoop.hbase.metrics">Histogram</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/metrics/MetricRegistry.html#line.47">histogram</a>(<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> name)</pre> |
| <div class="block">Get or construct a <a href="../../../../../org/apache/hadoop/hbase/metrics/Histogram.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Histogram</code></a> used to measure a distribution of values.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - The name of the Histogram.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>An instance of <a href="../../../../../org/apache/hadoop/hbase/metrics/Histogram.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Histogram</code></a>.</dd> |
| </dl> |
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| <h4>meter</h4> |
| <pre><a href="../../../../../org/apache/hadoop/hbase/metrics/Meter.html" title="interface in org.apache.hadoop.hbase.metrics">Meter</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/metrics/MetricRegistry.html#line.56">meter</a>(<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> name)</pre> |
| <div class="block">Get or construct a <a href="../../../../../org/apache/hadoop/hbase/metrics/Meter.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Meter</code></a> used to measure durations and report distributions (a |
| combination of a <a href="../../../../../org/apache/hadoop/hbase/metrics/Timer.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Timer</code></a> and a <a href="../../../../../org/apache/hadoop/hbase/metrics/Histogram.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Histogram</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - The name of the Meter.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>An instance of <a href="../../../../../org/apache/hadoop/hbase/metrics/Meter.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Meter</code></a>.</dd> |
| </dl> |
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| <h4>counter</h4> |
| <pre><a href="../../../../../org/apache/hadoop/hbase/metrics/Counter.html" title="interface in org.apache.hadoop.hbase.metrics">Counter</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/metrics/MetricRegistry.html#line.64">counter</a>(<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> name)</pre> |
| <div class="block">Get or construct a <a href="../../../../../org/apache/hadoop/hbase/metrics/Counter.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Counter</code></a> used to track a mutable number.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - The name of the Counter</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>An instance of <a href="../../../../../org/apache/hadoop/hbase/metrics/Counter.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Counter</code></a>.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="register-java.lang.String-org.apache.hadoop.hbase.metrics.Gauge-"> |
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| <h4>register</h4> |
| <pre><T> <a href="../../../../../org/apache/hadoop/hbase/metrics/Gauge.html" title="interface in org.apache.hadoop.hbase.metrics">Gauge</a><T> <a href="../../../../../src-html/org/apache/hadoop/hbase/metrics/MetricRegistry.html#line.73">register</a>(<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> name, |
| <a href="../../../../../org/apache/hadoop/hbase/metrics/Gauge.html" title="interface in org.apache.hadoop.hbase.metrics">Gauge</a><T> gauge)</pre> |
| <div class="block">Register a <a href="../../../../../org/apache/hadoop/hbase/metrics/Gauge.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Gauge</code></a>. The Gauge will be invoked at a period defined by the implementation |
| of <a href="../../../../../org/apache/hadoop/hbase/metrics/MetricRegistry.html" title="interface in org.apache.hadoop.hbase.metrics"><code>MetricRegistry</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - The name of the Gauge.</dd> |
| <dd><code>gauge</code> - A callback to compute the current value.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the registered gauge, or the existing gauge</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="register-java.lang.String-org.apache.hadoop.hbase.metrics.Metric-"> |
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| <h4>register</h4> |
| <pre><a href="../../../../../org/apache/hadoop/hbase/metrics/Metric.html" title="interface in org.apache.hadoop.hbase.metrics">Metric</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/metrics/MetricRegistry.html#line.82">register</a>(<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> name, |
| <a href="../../../../../org/apache/hadoop/hbase/metrics/Metric.html" title="interface in org.apache.hadoop.hbase.metrics">Metric</a> metric)</pre> |
| <div class="block">Registers the <a href="../../../../../org/apache/hadoop/hbase/metrics/Metric.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Metric</code></a> with the given name if there does not exist one with the same |
| name. Returns the newly registered or existing Metric.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - The name of the Metric.</dd> |
| <dd><code>metric</code> - the metric to register</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the registered metric, or the existing metrid</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="registerAll-org.apache.hadoop.hbase.metrics.MetricSet-"> |
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| <h4>registerAll</h4> |
| <pre>void <a href="../../../../../src-html/org/apache/hadoop/hbase/metrics/MetricRegistry.html#line.88">registerAll</a>(<a href="../../../../../org/apache/hadoop/hbase/metrics/MetricSet.html" title="interface in org.apache.hadoop.hbase.metrics">MetricSet</a> metricSet)</pre> |
| <div class="block">Registers the <a href="../../../../../org/apache/hadoop/hbase/metrics/Metric.html" title="interface in org.apache.hadoop.hbase.metrics"><code>Metric</code></a>s in the given MetricSet.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>metricSet</code> - set of metrics to register.</dd> |
| </dl> |
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| <h4>get</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a><<a href="../../../../../org/apache/hadoop/hbase/metrics/Metric.html" title="interface in org.apache.hadoop.hbase.metrics">Metric</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/metrics/MetricRegistry.html#line.95">get</a>(<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> name)</pre> |
| <div class="block">Returns previously registered metric with the name if any.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - the name of the metric</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>previously registered metric</dd> |
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| <h4>remove</h4> |
| <pre>boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/metrics/MetricRegistry.html#line.103">remove</a>(<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> name)</pre> |
| <div class="block">Removes the metric with the given name.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - the name of the metric</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the metric is removed.</dd> |
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| <h4>getMetricRegistryInfo</h4> |
| <pre>@InterfaceAudience.Private |
| <a href="../../../../../org/apache/hadoop/hbase/metrics/MetricRegistryInfo.html" title="class in org.apache.hadoop.hbase.metrics">MetricRegistryInfo</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/metrics/MetricRegistry.html#line.110">getMetricRegistryInfo</a>()</pre> |
| <div class="block">Return the MetricRegistryInfo object for this registry.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>MetricRegistryInfo describing the registry.</dd> |
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