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| <div class="subTitle">org.apache.hadoop.hbase.metrics.impl</div> |
| <h2 title="Class HistogramImpl" class="title">Class HistogramImpl</h2> |
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| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.hadoop.hbase.metrics.impl.HistogramImpl</li> |
| </ul> |
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| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/metrics/Histogram.html" title="interface in org.apache.hadoop.hbase.metrics">Histogram</a>, <a href="../../../../../../org/apache/hadoop/hbase/metrics/Metric.html" title="interface in org.apache.hadoop.hbase.metrics">Metric</a></dd> |
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| <br> |
| <pre>@InterfaceAudience.Private |
| public class <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.31">HistogramImpl</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/metrics/Histogram.html" title="interface in org.apache.hadoop.hbase.metrics">Histogram</a></pre> |
| <div class="block">Custom histogram implementation based on FastLongHistogram. Dropwizard-based histograms are |
| slow compared to this implementation, so we are using our implementation here. |
| See HBASE-15222.</div> |
| </li> |
| </ul> |
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| <h3>Field Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/CounterImpl.html" title="class in org.apache.hadoop.hbase.metrics.impl">CounterImpl</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#counter">counter</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/FastLongHistogram.html" title="class in org.apache.hadoop.hbase.metrics.impl">FastLongHistogram</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#histogram">histogram</a></span></code> </td> |
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| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier</th> |
| <th class="colLast" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code> </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#HistogramImpl--">HistogramImpl</a></span>()</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#HistogramImpl-org.apache.hadoop.hbase.metrics.impl.CounterImpl-org.apache.hadoop.hbase.metrics.impl.FastLongHistogram-">HistogramImpl</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/CounterImpl.html" title="class in org.apache.hadoop.hbase.metrics.impl">CounterImpl</a> counter, |
| <a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/FastLongHistogram.html" title="class in org.apache.hadoop.hbase.metrics.impl">FastLongHistogram</a> histogram)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code> </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#HistogramImpl-int-long-long-">HistogramImpl</a></span>(int numBins, |
| long min, |
| long maxExpected)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code> </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#HistogramImpl-long-">HistogramImpl</a></span>(long maxExpected)</code> </td> |
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| <h3>Method Summary</h3> |
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| <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="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete 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>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#getCount--">getCount</a></span>()</code> |
| <div class="block">Return the total number of values added to the histogram.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#getMax--">getMax</a></span>()</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#getMin--">getMin</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>long[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#getQuantiles-double:A-">getQuantiles</a></span>(double[] quantiles)</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/metrics/Snapshot.html" title="interface in org.apache.hadoop.hbase.metrics">Snapshot</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#snapshot--">snapshot</a></span>()</code> |
| <div class="block">Snapshot the current values in the Histogram</div> |
| </td> |
| </tr> |
| <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/metrics/impl/HistogramImpl.html#update-int-">update</a></span>(int value)</code> |
| <div class="block">Adds a new value to the distribution.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#update-long-">update</a></span>(long value)</code> |
| <div class="block">Adds a new value to the distribution.</div> |
| </td> |
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| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
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| <h3>Field Detail</h3> |
| <a name="histogram"> |
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| <h4>histogram</h4> |
| <pre>protected final <a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/FastLongHistogram.html" title="class in org.apache.hadoop.hbase.metrics.impl">FastLongHistogram</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.35">histogram</a></pre> |
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| <h4>counter</h4> |
| <pre>private final <a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/CounterImpl.html" title="class in org.apache.hadoop.hbase.metrics.impl">CounterImpl</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.36">counter</a></pre> |
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| <h4>HistogramImpl</h4> |
| <pre>public <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.38">HistogramImpl</a>()</pre> |
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| <pre>public <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.42">HistogramImpl</a>(long maxExpected)</pre> |
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| <h4>HistogramImpl</h4> |
| <pre>public <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.46">HistogramImpl</a>(int numBins, |
| long min, |
| long maxExpected)</pre> |
| </li> |
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| <a name="HistogramImpl-org.apache.hadoop.hbase.metrics.impl.CounterImpl-org.apache.hadoop.hbase.metrics.impl.FastLongHistogram-"> |
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| <h4>HistogramImpl</h4> |
| <pre>protected <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.51">HistogramImpl</a>(<a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/CounterImpl.html" title="class in org.apache.hadoop.hbase.metrics.impl">CounterImpl</a> counter, |
| <a href="../../../../../../org/apache/hadoop/hbase/metrics/impl/FastLongHistogram.html" title="class in org.apache.hadoop.hbase.metrics.impl">FastLongHistogram</a> histogram)</pre> |
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| <a name="update-int-"> |
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| <h4>update</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.57">update</a>(int value)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/metrics/Histogram.html#update-int-">Histogram</a></code></span></div> |
| <div class="block">Adds a new value to the distribution.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/metrics/Histogram.html#update-int-">update</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/metrics/Histogram.html" title="interface in org.apache.hadoop.hbase.metrics">Histogram</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>value</code> - The value to add</dd> |
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| <h4>update</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.63">update</a>(long value)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/metrics/Histogram.html#update-long-">Histogram</a></code></span></div> |
| <div class="block">Adds a new value to the distribution.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/metrics/Histogram.html#update-long-">update</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/metrics/Histogram.html" title="interface in org.apache.hadoop.hbase.metrics">Histogram</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>value</code> - The value to add</dd> |
| </dl> |
| </li> |
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| <a name="getCount--"> |
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| </a> |
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| <h4>getCount</h4> |
| <pre>public long <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.69">getCount</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/metrics/Histogram.html#getCount--">Histogram</a></code></span></div> |
| <div class="block">Return the total number of values added to the histogram.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/metrics/Histogram.html#getCount--">getCount</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/metrics/Histogram.html" title="interface in org.apache.hadoop.hbase.metrics">Histogram</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the total number of values.</dd> |
| </dl> |
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| <h4>getMax</h4> |
| <pre>public long <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.73">getMax</a>()</pre> |
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| <h4>getMin</h4> |
| <pre>public long <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.77">getMin</a>()</pre> |
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| <h4>snapshot</h4> |
| <pre>public <a href="../../../../../../org/apache/hadoop/hbase/metrics/Snapshot.html" title="interface in org.apache.hadoop.hbase.metrics">Snapshot</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.82">snapshot</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/metrics/Histogram.html#snapshot--">Histogram</a></code></span></div> |
| <div class="block">Snapshot the current values in the Histogram</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
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| <h4>getQuantiles</h4> |
| <pre>public long[] <a href="../../../../../../src-html/org/apache/hadoop/hbase/metrics/impl/HistogramImpl.html#line.86">getQuantiles</a>(double[] quantiles)</pre> |
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