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<div class="subTitle">org.apache.hadoop.hbase.master</div>
<h2 title="Interface LoadBalancer" class="title">Interface LoadBalancer</h2>
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<dt>All Superinterfaces:</dt>
<dd>org.apache.hadoop.conf.Configurable, <a href="../../../../../org/apache/hadoop/hbase/conf/ConfigurationObserver.html" title="interface in org.apache.hadoop.hbase.conf">ConfigurationObserver</a>, <a href="../../../../../org/apache/hadoop/hbase/Stoppable.html" title="interface in org.apache.hadoop.hbase">Stoppable</a></dd>
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<dl>
<dt>All Known Subinterfaces:</dt>
<dd><a href="../../../../../org/apache/hadoop/hbase/rsgroup/RSGroupableBalancer.html" title="interface in org.apache.hadoop.hbase.rsgroup">RSGroupableBalancer</a></dd>
</dl>
<dl>
<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer</a>, <a href="../../../../../org/apache/hadoop/hbase/favored/FavoredNodeLoadBalancer.html" title="class in org.apache.hadoop.hbase.favored">FavoredNodeLoadBalancer</a>, <a href="../../../../../org/apache/hadoop/hbase/master/balancer/FavoredStochasticBalancer.html" title="class in org.apache.hadoop.hbase.master.balancer">FavoredStochasticBalancer</a>, <a href="../../../../../org/apache/hadoop/hbase/rsgroup/RSGroupBasedLoadBalancer.html" title="class in org.apache.hadoop.hbase.rsgroup">RSGroupBasedLoadBalancer</a>, <a href="../../../../../org/apache/hadoop/hbase/master/balancer/SimpleLoadBalancer.html" title="class in org.apache.hadoop.hbase.master.balancer">SimpleLoadBalancer</a>, <a href="../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.html" title="class in org.apache.hadoop.hbase.master.balancer">StochasticLoadBalancer</a></dd>
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<pre>@InterfaceAudience.Private
public interface <a href="../../../../../src-html/org/apache/hadoop/hbase/master/LoadBalancer.html#line.50">LoadBalancer</a>
extends org.apache.hadoop.conf.Configurable, <a href="../../../../../org/apache/hadoop/hbase/Stoppable.html" title="interface in org.apache.hadoop.hbase">Stoppable</a>, <a href="../../../../../org/apache/hadoop/hbase/conf/ConfigurationObserver.html" title="interface in org.apache.hadoop.hbase.conf">ConfigurationObserver</a></pre>
<div class="block">Makes decisions about the placement and movement of Regions across
RegionServers.
<p>Cluster-wide load balancing will occur only when there are no regions in
transition and according to a fixed period of a time using <a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#balanceCluster-java.util.Map-"><code>balanceCluster(Map)</code></a>.
<p>On cluster startup, bulk assignment can be used to determine
locations for all Regions in a cluster.
<p>This class produces plans for the
<a href="../../../../../org/apache/hadoop/hbase/master/assignment/AssignmentManager.html" title="class in org.apache.hadoop.hbase.master.assignment"><code>AssignmentManager</code></a>
to execute.</div>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</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>static <a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#BOGUS_SERVER_NAME">BOGUS_SERVER_NAME</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<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>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#SYSTEM_TABLES_ON_MASTER">SYSTEM_TABLES_ON_MASTER</a></span></code>
<div class="block">Master carries system tables.</div>
</td>
</tr>
<tr class="altColor">
<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>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#TABLES_ON_MASTER">TABLES_ON_MASTER</a></span></code>
<div class="block">Master can carry regions as of hbase-2.0.0.</div>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t5" class="tableTab"><span><a href="javascript:show(16);">Default Methods</a></span><span class="tabEnd">&nbsp;</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="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="../../../../../org/apache/hadoop/hbase/master/RegionPlan.html" title="class in org.apache.hadoop.hbase.master">RegionPlan</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#balanceCluster-java.util.Map-">balanceCluster</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</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/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>&gt;&gt;&nbsp;clusterState)</code>
<div class="block">Perform the major balance operation</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><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="../../../../../org/apache/hadoop/hbase/master/RegionPlan.html" title="class in org.apache.hadoop.hbase.master">RegionPlan</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#balanceCluster-org.apache.hadoop.hbase.TableName-java.util.Map-">balanceCluster</a></span>(<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&nbsp;tableName,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</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/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>&gt;&gt;&nbsp;clusterState)</code>
<div class="block">Perform the major balance operation</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#initialize--">initialize</a></span>()</code>
<div class="block">Initialize the load balancer.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#isMasterCanHostUserRegions-org.apache.hadoop.conf.Configuration-">isMasterCanHostUserRegions</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#isSystemTablesOnlyOnMaster-org.apache.hadoop.conf.Configuration-">isSystemTablesOnlyOnMaster</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#isTablesOnMaster-org.apache.hadoop.conf.Configuration-">isTablesOnMaster</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</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/master/LoadBalancer.html#onConfigurationChange-org.apache.hadoop.conf.Configuration-">onConfigurationChange</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>
<div class="block">This method would be called by the <a href="../../../../../org/apache/hadoop/hbase/conf/ConfigurationManager.html" title="class in org.apache.hadoop.hbase.conf"><code>ConfigurationManager</code></a>
object when the <code>Configuration</code> object is reloaded from disk.</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/master/LoadBalancer.html#postMasterStartupInitialize--">postMasterStartupInitialize</a></span>()</code>
<div class="block">If balancer needs to do initialization after Master has started up, lets do that here.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#randomAssignment-org.apache.hadoop.hbase.client.RegionInfo-java.util.List-">randomAssignment</a></span>(<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>&nbsp;regionInfo,
<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="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>&gt;&nbsp;servers)</code>
<div class="block">Get a random region server from the list</div>
</td>
</tr>
<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/master/LoadBalancer.html#regionOffline-org.apache.hadoop.hbase.client.RegionInfo-">regionOffline</a></span>(<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>&nbsp;regionInfo)</code>
<div class="block">Marks the region as offline at balancer.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#regionOnline-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.ServerName-">regionOnline</a></span>(<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>&nbsp;regionInfo,
<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>&nbsp;sn)</code>
<div class="block">Marks the region as online at balancer.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</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/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>&gt;&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#retainAssignment-java.util.Map-java.util.List-">retainAssignment</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>,<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>&gt;&nbsp;regions,
<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="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>&gt;&nbsp;servers)</code>
<div class="block">Assign regions to the previously hosting region server</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</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/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>&gt;&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#roundRobinAssignment-java.util.List-java.util.List-">roundRobinAssignment</a></span>(<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="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>&gt;&nbsp;regions,
<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="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>&gt;&nbsp;servers)</code>
<div class="block">Perform a Round Robin assignment of regions.</div>
</td>
</tr>
<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/master/LoadBalancer.html#setClusterLoad-java.util.Map-">setClusterLoad</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</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/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>&gt;&gt;&gt;&nbsp;ClusterLoad)</code>
<div class="block">Pass RegionStates and allow balancer to set the current cluster load.</div>
</td>
</tr>
<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/master/LoadBalancer.html#setClusterMetrics-org.apache.hadoop.hbase.ClusterMetrics-">setClusterMetrics</a></span>(<a href="../../../../../org/apache/hadoop/hbase/ClusterMetrics.html" title="interface in org.apache.hadoop.hbase">ClusterMetrics</a>&nbsp;st)</code>
<div class="block">Set the current cluster status.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#setMasterServices-org.apache.hadoop.hbase.master.MasterServices-">setMasterServices</a></span>(<a href="../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a>&nbsp;masterServices)</code>
<div class="block">Set the master service.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/master/LoadBalancer.html#updateBalancerStatus-boolean-">updateBalancerStatus</a></span>(boolean&nbsp;status)</code>&nbsp;</td>
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<h3>Methods inherited from interface&nbsp;org.apache.hadoop.conf.Configurable</h3>
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<h3>Methods inherited from interface&nbsp;org.apache.hadoop.hbase.<a href="../../../../../org/apache/hadoop/hbase/Stoppable.html" title="interface in org.apache.hadoop.hbase">Stoppable</a></h3>
<code><a href="../../../../../org/apache/hadoop/hbase/Stoppable.html#isStopped--">isStopped</a>, <a href="../../../../../org/apache/hadoop/hbase/Stoppable.html#stop-java.lang.String-">stop</a></code></li>
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<div class="block">Master can carry regions as of hbase-2.0.0.
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<div class="block">Master carries system tables.</div>
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<pre>void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/master/LoadBalancer.html#line.71">setClusterMetrics</a>(<a href="../../../../../org/apache/hadoop/hbase/ClusterMetrics.html" title="interface in org.apache.hadoop.hbase">ClusterMetrics</a>&nbsp;st)</pre>
<div class="block">Set the current cluster status. This allows a LoadBalancer to map host name to a server</div>
<dl>
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<div class="block">Pass RegionStates and allow balancer to set the current cluster load.</div>
<dl>
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<dd><code>ClusterLoad</code> - </dd>
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<div class="block">Set the master service.</div>
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<dd><code>masterServices</code> - </dd>
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throws <a href="../../../../../org/apache/hadoop/hbase/HBaseIOException.html" title="class in org.apache.hadoop.hbase">HBaseIOException</a></pre>
<div class="block">Perform the major balance operation</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>tableName</code> - </dd>
<dd><code>clusterState</code> - </dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>List of plans</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
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throws <a href="../../../../../org/apache/hadoop/hbase/HBaseIOException.html" title="class in org.apache.hadoop.hbase">HBaseIOException</a></pre>
<div class="block">Perform the major balance operation</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>clusterState</code> - </dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>List of plans</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/hadoop/hbase/HBaseIOException.html" title="class in org.apache.hadoop.hbase">HBaseIOException</a></code></dd>
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<div class="block">Perform a Round Robin assignment of regions.</div>
<dl>
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<dd><code>regions</code> - </dd>
<dd><code>servers</code> - </dd>
<dt><span class="returnLabel">Returns:</span></dt>
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<div class="block">Assign regions to the previously hosting region server</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>regions</code> - </dd>
<dd><code>servers</code> - </dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>List of plans</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/hadoop/hbase/HBaseIOException.html" title="class in org.apache.hadoop.hbase">HBaseIOException</a></code></dd>
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<div class="block">Get a random region server from the list</div>
<dl>
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<dd><code>regionInfo</code> - Region for which this selection is being done.</dd>
<dd><code>servers</code> - </dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Servername</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/hadoop/hbase/HBaseIOException.html" title="class in org.apache.hadoop.hbase">HBaseIOException</a></code></dd>
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<div class="block">Initialize the load balancer. Must be called after setters.</div>
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<div class="block">Marks the region as online at balancer.</div>
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<dd><code>regionInfo</code> - </dd>
<dd><code>sn</code> - </dd>
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<div class="block">Marks the region as offline at balancer.</div>
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<pre>void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/master/LoadBalancer.html#line.159">onConfigurationChange</a>(org.apache.hadoop.conf.Configuration&nbsp;conf)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/conf/ConfigurationObserver.html#onConfigurationChange-org.apache.hadoop.conf.Configuration-">ConfigurationObserver</a></code></span></div>
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<dd><code><a href="../../../../../org/apache/hadoop/hbase/conf/ConfigurationObserver.html#onConfigurationChange-org.apache.hadoop.conf.Configuration-">onConfigurationChange</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/conf/ConfigurationObserver.html" title="interface in org.apache.hadoop.hbase.conf">ConfigurationObserver</a></code></dd>
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