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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.hadoop.hbase.regionserver</a></div>
<h1 title="Class BusyRegionSplitPolicy" class="title">Class BusyRegionSplitPolicy</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
<div class="inheritance">org.apache.hadoop.conf.Configured
<div class="inheritance"><a href="RegionSplitPolicy.html" title="class in org.apache.hadoop.hbase.regionserver">org.apache.hadoop.hbase.regionserver.RegionSplitPolicy</a>
<div class="inheritance"><a href="ConstantSizeRegionSplitPolicy.html" title="class in org.apache.hadoop.hbase.regionserver">org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy</a>
<div class="inheritance"><a href="IncreasingToUpperBoundRegionSplitPolicy.html" title="class in org.apache.hadoop.hbase.regionserver">org.apache.hadoop.hbase.regionserver.IncreasingToUpperBoundRegionSplitPolicy</a>
<div class="inheritance">org.apache.hadoop.hbase.regionserver.BusyRegionSplitPolicy</div>
</div>
</div>
</div>
</div>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code>org.apache.hadoop.conf.Configurable</code></dd>
</dl>
<hr>
<div class="type-signature"><span class="annotations">@LimitedPrivate("Configuration")
</span><span class="modifiers">public class </span><span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-35">BusyRegionSplitPolicy</a></span>
<span class="extends-implements">extends <a href="IncreasingToUpperBoundRegionSplitPolicy.html" title="class in org.apache.hadoop.hbase.regionserver">IncreasingToUpperBoundRegionSplitPolicy</a></span></div>
<div class="block">This class represents a split policy which makes the split decision based on how busy a region
is. The metric that is used here is the fraction of total write requests that are blocked due to
high memstore utilization. This fractional rate is calculated over a running window of
"hbase.busy.policy.aggWindow" milliseconds. The rate is a time-weighted aggregated average of the
rate in the current window and the true average rate in the previous window.</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- =========== FIELD SUMMARY =========== -->
<li>
<section class="field-summary" id="field-summary">
<h2>Field Summary</h2>
<div class="caption"><span>Fields</span></div>
<div class="summary-table three-column-summary">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Field</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><code>private long</code></div>
<div class="col-second even-row-color"><code><a href="#aggregationWindow" class="member-name-link">aggregationWindow</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
<div class="col-first odd-row-color"><code>private float</code></div>
<div class="col-second odd-row-color"><code><a href="#blockedRate" class="member-name-link">blockedRate</a></code></div>
<div class="col-last odd-row-color">&nbsp;</div>
<div class="col-first even-row-color"><code>private long</code></div>
<div class="col-second even-row-color"><code><a href="#blockedRequestCount" class="member-name-link">blockedRequestCount</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
<div class="col-first odd-row-color"><code>static final long</code></div>
<div class="col-second odd-row-color"><code><a href="#DEFAULT_AGGREGATION_WINDOW" class="member-name-link">DEFAULT_AGGREGATION_WINDOW</a></code></div>
<div class="col-last odd-row-color">&nbsp;</div>
<div class="col-first even-row-color"><code>static final float</code></div>
<div class="col-second even-row-color"><code><a href="#DEFAULT_MAX_BLOCKED_REQUESTS" class="member-name-link">DEFAULT_MAX_BLOCKED_REQUESTS</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
<div class="col-first odd-row-color"><code>static final long</code></div>
<div class="col-second odd-row-color"><code><a href="#DEFAULT_MIN_AGE_MS" class="member-name-link">DEFAULT_MIN_AGE_MS</a></code></div>
<div class="col-last odd-row-color">&nbsp;</div>
<div class="col-first even-row-color"><code>private static final org.slf4j.Logger</code></div>
<div class="col-second even-row-color"><code><a href="#LOG" class="member-name-link">LOG</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
<div class="col-first odd-row-color"><code>private float</code></div>
<div class="col-second odd-row-color"><code><a href="#maxBlockedRequests" class="member-name-link">maxBlockedRequests</a></code></div>
<div class="col-last odd-row-color">&nbsp;</div>
<div class="col-first even-row-color"><code>private long</code></div>
<div class="col-second even-row-color"><code><a href="#minAge" class="member-name-link">minAge</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
<div class="col-first odd-row-color"><code>private long</code></div>
<div class="col-second odd-row-color"><code><a href="#prevTime" class="member-name-link">prevTime</a></code></div>
<div class="col-last odd-row-color">&nbsp;</div>
<div class="col-first even-row-color"><code>private <a href="HRegion.html" title="class in org.apache.hadoop.hbase.regionserver">HRegion</a></code></div>
<div class="col-second even-row-color"><code><a href="#region" class="member-name-link">region</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
<div class="col-first odd-row-color"><code>private long</code></div>
<div class="col-second odd-row-color"><code><a href="#startTime" class="member-name-link">startTime</a></code></div>
<div class="col-last odd-row-color">&nbsp;</div>
<div class="col-first even-row-color"><code>private long</code></div>
<div class="col-second even-row-color"><code><a href="#writeRequestCount" class="member-name-link">writeRequestCount</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
<div class="inherited-list">
<h3 id="fields-inherited-from-class-org.apache.hadoop.hbase.regionserver.IncreasingToUpperBoundRegionSplitPolicy">Fields inherited from class&nbsp;org.apache.hadoop.hbase.regionserver.<a href="IncreasingToUpperBoundRegionSplitPolicy.html" title="class in org.apache.hadoop.hbase.regionserver">IncreasingToUpperBoundRegionSplitPolicy</a></h3>
<code><a href="IncreasingToUpperBoundRegionSplitPolicy.html#initialSize">initialSize</a></code></div>
<div class="inherited-list">
<h3 id="fields-inherited-from-class-org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy">Fields inherited from class&nbsp;org.apache.hadoop.hbase.regionserver.<a href="ConstantSizeRegionSplitPolicy.html" title="class in org.apache.hadoop.hbase.regionserver">ConstantSizeRegionSplitPolicy</a></h3>
<code><a href="ConstantSizeRegionSplitPolicy.html#overallHRegionFiles">overallHRegionFiles</a></code></div>
</section>
</li>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<li>
<section class="constructor-summary" id="constructor-summary">
<h2>Constructor Summary</h2>
<div class="caption"><span>Constructors</span></div>
<div class="summary-table two-column-summary">
<div class="table-header col-first">Constructor</div>
<div class="table-header col-last">Description</div>
<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E()" class="member-name-link">BusyRegionSplitPolicy</a>()</code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
<div id="method-summary-table.tabpanel" role="tabpanel">
<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#configureForRegion(org.apache.hadoop.hbase.regionserver.HRegion)" class="member-name-link">configureForRegion</a><wbr>(<a href="HRegion.html" title="class in org.apache.hadoop.hbase.regionserver">HRegion</a>&nbsp;region)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Upon construction, this method will be called with the region to be governed.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#init()" class="member-name-link">init</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#shouldSplit()" class="member-name-link">shouldSplit</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns true if the specified region should be split.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#toString()" class="member-name-link">toString</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private float</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#updateRate()" class="member-name-link">updateRate</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Update the blocked request rate based on number of blocked and total write requests in the last
aggregation window, or since last call to this method, whichever is farthest in time.</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.hadoop.hbase.regionserver.IncreasingToUpperBoundRegionSplitPolicy">Methods inherited from class&nbsp;org.apache.hadoop.hbase.regionserver.<a href="IncreasingToUpperBoundRegionSplitPolicy.html" title="class in org.apache.hadoop.hbase.regionserver">IncreasingToUpperBoundRegionSplitPolicy</a></h3>
<code><a href="IncreasingToUpperBoundRegionSplitPolicy.html#getSizeToCheck(int)">getSizeToCheck</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy">Methods inherited from class&nbsp;org.apache.hadoop.hbase.regionserver.<a href="ConstantSizeRegionSplitPolicy.html" title="class in org.apache.hadoop.hbase.regionserver">ConstantSizeRegionSplitPolicy</a></h3>
<code><a href="ConstantSizeRegionSplitPolicy.html#getDesiredMaxFileSize()">getDesiredMaxFileSize</a>, <a href="ConstantSizeRegionSplitPolicy.html#isExceedSize(long)">isExceedSize</a>, <a href="ConstantSizeRegionSplitPolicy.html#positiveJitterRate()">positiveJitterRate</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.hadoop.hbase.regionserver.RegionSplitPolicy">Methods inherited from class&nbsp;org.apache.hadoop.hbase.regionserver.<a href="RegionSplitPolicy.html" title="class in org.apache.hadoop.hbase.regionserver">RegionSplitPolicy</a></h3>
<code><a href="RegionSplitPolicy.html#canSplit()">canSplit</a>, <a href="RegionSplitPolicy.html#create(org.apache.hadoop.hbase.regionserver.HRegion,org.apache.hadoop.conf.Configuration)">create</a>, <a href="RegionSplitPolicy.html#getSplitPoint()">getSplitPoint</a>, <a href="RegionSplitPolicy.html#getSplitPolicyClass(org.apache.hadoop.hbase.client.TableDescriptor,org.apache.hadoop.conf.Configuration)">getSplitPolicyClass</a>, <a href="RegionSplitPolicy.html#skipStoreFileRangeCheck(java.lang.String)">skipStoreFileRangeCheck</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.hadoop.conf.Configured">Methods inherited from class&nbsp;org.apache.hadoop.conf.Configured</h3>
<code>getConf, setConf</code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ FIELD DETAIL =========== -->
<li>
<section class="field-details" id="field-detail">
<h2>Field Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="LOG">
<h3>LOG</h3>
<div class="member-signature"><span class="modifiers">private static final</span>&nbsp;<span class="return-type">org.slf4j.Logger</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-38">LOG</a></span></div>
</section>
</li>
<li>
<section class="detail" id="maxBlockedRequests">
<h3>maxBlockedRequests</h3>
<div class="member-signature"><span class="modifiers">private</span>&nbsp;<span class="return-type">float</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-41">maxBlockedRequests</a></span></div>
</section>
</li>
<li>
<section class="detail" id="DEFAULT_MAX_BLOCKED_REQUESTS">
<h3>DEFAULT_MAX_BLOCKED_REQUESTS</h3>
<div class="member-signature"><span class="modifiers">public static final</span>&nbsp;<span class="return-type">float</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-42">DEFAULT_MAX_BLOCKED_REQUESTS</a></span></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.regionserver.BusyRegionSplitPolicy.DEFAULT_MAX_BLOCKED_REQUESTS">Constant Field Values</a></li>
</ul>
</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="minAge">
<h3>minAge</h3>
<div class="member-signature"><span class="modifiers">private</span>&nbsp;<span class="return-type">long</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-45">minAge</a></span></div>
</section>
</li>
<li>
<section class="detail" id="DEFAULT_MIN_AGE_MS">
<h3>DEFAULT_MIN_AGE_MS</h3>
<div class="member-signature"><span class="modifiers">public static final</span>&nbsp;<span class="return-type">long</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-46">DEFAULT_MIN_AGE_MS</a></span></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.regionserver.BusyRegionSplitPolicy.DEFAULT_MIN_AGE_MS">Constant Field Values</a></li>
</ul>
</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="aggregationWindow">
<h3>aggregationWindow</h3>
<div class="member-signature"><span class="modifiers">private</span>&nbsp;<span class="return-type">long</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-49">aggregationWindow</a></span></div>
</section>
</li>
<li>
<section class="detail" id="DEFAULT_AGGREGATION_WINDOW">
<h3>DEFAULT_AGGREGATION_WINDOW</h3>
<div class="member-signature"><span class="modifiers">public static final</span>&nbsp;<span class="return-type">long</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-50">DEFAULT_AGGREGATION_WINDOW</a></span></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.regionserver.BusyRegionSplitPolicy.DEFAULT_AGGREGATION_WINDOW">Constant Field Values</a></li>
</ul>
</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="region">
<h3>region</h3>
<div class="member-signature"><span class="modifiers">private</span>&nbsp;<span class="return-type"><a href="HRegion.html" title="class in org.apache.hadoop.hbase.regionserver">HRegion</a></span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-52">region</a></span></div>
</section>
</li>
<li>
<section class="detail" id="prevTime">
<h3>prevTime</h3>
<div class="member-signature"><span class="modifiers">private</span>&nbsp;<span class="return-type">long</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-53">prevTime</a></span></div>
</section>
</li>
<li>
<section class="detail" id="startTime">
<h3>startTime</h3>
<div class="member-signature"><span class="modifiers">private</span>&nbsp;<span class="return-type">long</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-54">startTime</a></span></div>
</section>
</li>
<li>
<section class="detail" id="writeRequestCount">
<h3>writeRequestCount</h3>
<div class="member-signature"><span class="modifiers">private</span>&nbsp;<span class="return-type">long</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-55">writeRequestCount</a></span></div>
</section>
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<li>
<section class="detail" id="blockedRequestCount">
<h3>blockedRequestCount</h3>
<div class="member-signature"><span class="modifiers">private</span>&nbsp;<span class="return-type">long</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-56">blockedRequestCount</a></span></div>
</section>
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<li>
<section class="detail" id="blockedRate">
<h3>blockedRate</h3>
<div class="member-signature"><span class="modifiers">private</span>&nbsp;<span class="return-type">float</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-57">blockedRate</a></span></div>
</section>
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</ul>
</section>
</li>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<li>
<section class="constructor-details" id="constructor-detail">
<h2>Constructor Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="&lt;init&gt;()">
<h3>BusyRegionSplitPolicy</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-36">BusyRegionSplitPolicy</a></span>()</div>
</section>
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<!-- ============ METHOD DETAIL ========== -->
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<h2>Method Details</h2>
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<section class="detail" id="toString()">
<h3>toString</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-59">toString</a></span>()</div>
<dl class="notes">
<dt>Overrides:</dt>
<dd><code><a href="IncreasingToUpperBoundRegionSplitPolicy.html#toString()">toString</a></code>&nbsp;in class&nbsp;<code><a href="IncreasingToUpperBoundRegionSplitPolicy.html" title="class in org.apache.hadoop.hbase.regionserver">IncreasingToUpperBoundRegionSplitPolicy</a></code></dd>
</dl>
</section>
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<li>
<section class="detail" id="configureForRegion(org.apache.hadoop.hbase.regionserver.HRegion)">
<h3>configureForRegion</h3>
<div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-65">configureForRegion</a></span><wbr><span class="parameters">(<a href="HRegion.html" title="class in org.apache.hadoop.hbase.regionserver">HRegion</a>&nbsp;region)</span></div>
<div class="block"><span class="descfrm-type-label">Description copied from class:&nbsp;<code><a href="RegionSplitPolicy.html#configureForRegion(org.apache.hadoop.hbase.regionserver.HRegion)">RegionSplitPolicy</a></code></span></div>
<div class="block">Upon construction, this method will be called with the region to be governed. It will be called
once and only once.</div>
<dl class="notes">
<dt>Overrides:</dt>
<dd><code><a href="IncreasingToUpperBoundRegionSplitPolicy.html#configureForRegion(org.apache.hadoop.hbase.regionserver.HRegion)">configureForRegion</a></code>&nbsp;in class&nbsp;<code><a href="IncreasingToUpperBoundRegionSplitPolicy.html" title="class in org.apache.hadoop.hbase.regionserver">IncreasingToUpperBoundRegionSplitPolicy</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="init()">
<h3>init</h3>
<div class="member-signature"><span class="modifiers">private</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-91">init</a></span>()</div>
</section>
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<li>
<section class="detail" id="shouldSplit()">
<h3>shouldSplit</h3>
<div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-98">shouldSplit</a></span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from class:&nbsp;<code><a href="RegionSplitPolicy.html#shouldSplit()">RegionSplitPolicy</a></code></span></div>
<div class="block">Returns true if the specified region should be split.</div>
<dl class="notes">
<dt>Overrides:</dt>
<dd><code><a href="IncreasingToUpperBoundRegionSplitPolicy.html#shouldSplit()">shouldSplit</a></code>&nbsp;in class&nbsp;<code><a href="IncreasingToUpperBoundRegionSplitPolicy.html" title="class in org.apache.hadoop.hbase.regionserver">IncreasingToUpperBoundRegionSplitPolicy</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="updateRate()">
<h3>updateRate</h3>
<div class="member-signature"><span class="modifiers">private</span>&nbsp;<span class="return-type">float</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BusyRegionSplitPolicy.html#line-132">updateRate</a></span>()</div>
<div class="block">Update the blocked request rate based on number of blocked and total write requests in the last
aggregation window, or since last call to this method, whichever is farthest in time. Uses
weighted rate calculation based on the previous rate and new data.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>Updated blocked request rate.</dd>
</dl>
</section>
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