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<h2 title="Uses of Class org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster" class="title">Uses of Class<br>org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster</h2>
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<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing packages, and an explanation">
<caption><span>Packages that use <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a></span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Package</th>
<th class="colLast" scope="col">Description</th>
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<tr class="altColor">
<td class="colFirst"><a href="#org.apache.hadoop.hbase.master.balancer">org.apache.hadoop.hbase.master.balancer</a></td>
<td class="colLast">&nbsp;</td>
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<h3>Uses of <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a> in <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/package-summary.html">org.apache.hadoop.hbase.master.balancer</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing fields, and an explanation">
<caption><span>Fields in <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/package-summary.html">org.apache.hadoop.hbase.master.balancer</a> declared as <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a></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>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a></code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.CostFunction.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.CostFunction.html#cluster">cluster</a></span></code>&nbsp;</td>
</tr>
</tbody>
</table>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing methods, and an explanation">
<caption><span>Methods in <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/package-summary.html">org.apache.hadoop.hbase.master.balancer</a> that return <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a></span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a></code></td>
<td class="colLast"><span class="typeNameLabel">BaseLoadBalancer.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.html#createCluster-java.util.List-java.util.Collection-">createCluster</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/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>&gt;&nbsp;servers,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>&gt;&nbsp;regions)</code>&nbsp;</td>
</tr>
</tbody>
</table>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing methods, and an explanation">
<caption><span>Methods in <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/package-summary.html">org.apache.hadoop.hbase.master.balancer</a> with parameters of type <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.html#areSomeRegionReplicasColocated-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">areSomeRegionReplicasColocated</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;c)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><span class="typeNameLabel">BaseLoadBalancer.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.html#areSomeRegionReplicasColocated-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">areSomeRegionReplicasColocated</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;c)</code>
<div class="block">Subclasses should implement this to return true if the cluster has nodes that hosts
multiple replicas for the same region, or, if there are multiple racks and the same
rack hosts replicas of the same region</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected double</code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.html#computeCost-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-double-">computeCost</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
double&nbsp;previousCost)</code>
<div class="block">This is the main cost function.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private <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"><span class="typeNameLabel">StochasticLoadBalancer.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.html#createRegionPlans-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">createRegionPlans</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>
<div class="block">Create all of the RegionPlan's needed to move from the initial cluster state to the desired
state.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster.Action</a></code></td>
<td class="colLast"><span class="typeNameLabel">LoadCandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/LoadCandidateGenerator.html#generate-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">generate</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster.Action</a></code></td>
<td class="colLast"><span class="typeNameLabel">FavoredStochasticBalancer.FavoredNodeLocalityPicker.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/FavoredStochasticBalancer.FavoredNodeLocalityPicker.html#generate-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">generate</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster.Action</a></code></td>
<td class="colLast"><span class="typeNameLabel">FavoredStochasticBalancer.FavoredNodeLoadPicker.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/FavoredStochasticBalancer.FavoredNodeLoadPicker.html#generate-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">generate</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) abstract <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster.Action</a></code></td>
<td class="colLast"><span class="typeNameLabel">CandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/CandidateGenerator.html#generate-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">generate</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster.Action</a></code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.RandomCandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.RandomCandidateGenerator.html#generate-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">generate</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster.Action</a></code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.RegionReplicaRackCandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.RegionReplicaRackCandidateGenerator.html#generate-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">generate</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster.Action</a></code></td>
<td class="colLast"><span class="typeNameLabel">RegionReplicaCandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/RegionReplicaCandidateGenerator.html#generate-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">generate</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster.Action</a></code></td>
<td class="colLast"><span class="typeNameLabel">LocalityBasedCandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/LocalityBasedCandidateGenerator.html#generate-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">generate</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private int</code></td>
<td class="colLast"><span class="typeNameLabel">FavoredStochasticBalancer.FavoredNodeLocalityPicker.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/FavoredStochasticBalancer.FavoredNodeLocalityPicker.html#getDifferentFavoredNode-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-java.util.List-int-">getDifferentFavoredNode</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
<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;favoredNodes,
int&nbsp;currentServer)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) long</code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.RegionReplicaHostCostFunction.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.RegionReplicaHostCostFunction.html#getMaxCost-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">getMaxCost</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private double</code></td>
<td class="colLast"><span class="typeNameLabel">LocalityBasedCandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/LocalityBasedCandidateGenerator.html#getWeightedLocality-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-int-int-">getWeightedLocality</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
int&nbsp;region,
int&nbsp;server)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><span class="typeNameLabel">BaseLoadBalancer.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.html#idleRegionServerExist-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">idleRegionServerExist</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;c)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.CostFunction.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.CostFunction.html#init-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">init</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>
<div class="block">Called once per LB invocation to give the cost function
to initialize it's state, and perform any costly calculation.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.RegionCountSkewCostFunction.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.RegionCountSkewCostFunction.html#init-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">init</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.LocalityBasedCostFunction.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.LocalityBasedCostFunction.html#init-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">init</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.RegionReplicaHostCostFunction.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.RegionReplicaHostCostFunction.html#init-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">init</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.RegionReplicaRackCostFunction.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.RegionReplicaRackCostFunction.html#init-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">init</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><span class="typeNameLabel">HeterogeneousRegionCountCostFunction.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/HeterogeneousRegionCountCostFunction.html#init-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">init</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>
<div class="block">Called once per LB invocation to give the cost function to initialize it's state, and perform
any costly calculation.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.html#initCosts-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">initCosts</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.html#needsBalance-org.apache.hadoop.hbase.TableName-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">needsBalance</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&nbsp;tableName,
<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><span class="typeNameLabel">BaseLoadBalancer.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.html#needsBalance-org.apache.hadoop.hbase.TableName-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">needsBalance</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&nbsp;tableName,
<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;c)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster.Action</a></code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.html#nextAction-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">nextAction</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private int</code></td>
<td class="colLast"><span class="typeNameLabel">FavoredStochasticBalancer.FavoredNodeLoadPicker.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/FavoredStochasticBalancer.FavoredNodeLoadPicker.html#pickLeastLoadedFNServer-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-java.util.List-int-">pickLeastLoadedFNServer</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
<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;favoredNodes,
int&nbsp;currentServerIndex)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private int</code></td>
<td class="colLast"><span class="typeNameLabel">LoadCandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/LoadCandidateGenerator.html#pickLeastLoadedServer-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-int-">pickLeastLoadedServer</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
int&nbsp;thisServer)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private int</code></td>
<td class="colLast"><span class="typeNameLabel">FavoredStochasticBalancer.FavoredNodeLoadPicker.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/FavoredStochasticBalancer.FavoredNodeLoadPicker.html#pickLeastLoadedServer-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-int-">pickLeastLoadedServer</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
int&nbsp;thisServer)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private int</code></td>
<td class="colLast"><span class="typeNameLabel">FavoredStochasticBalancer.FavoredNodeLocalityPicker.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/FavoredStochasticBalancer.FavoredNodeLocalityPicker.html#pickLowestLocalRegionOnServer-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-int-">pickLowestLocalRegionOnServer</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
int&nbsp;server)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private int</code></td>
<td class="colLast"><span class="typeNameLabel">FavoredStochasticBalancer.FavoredNodeLoadPicker.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/FavoredStochasticBalancer.FavoredNodeLoadPicker.html#pickMostLoadedServer-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">pickMostLoadedServer</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private int</code></td>
<td class="colLast"><span class="typeNameLabel">LoadCandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/LoadCandidateGenerator.html#pickMostLoadedServer-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-int-">pickMostLoadedServer</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
int&nbsp;thisServer)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) int</code></td>
<td class="colLast"><span class="typeNameLabel">CandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/CandidateGenerator.html#pickOtherRandomRack-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-int-">pickOtherRandomRack</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
int&nbsp;rackIndex)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) int</code></td>
<td class="colLast"><span class="typeNameLabel">CandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/CandidateGenerator.html#pickOtherRandomServer-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-int-">pickOtherRandomServer</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
int&nbsp;serverIndex)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) int</code></td>
<td class="colLast"><span class="typeNameLabel">CandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/CandidateGenerator.html#pickRandomRack-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">pickRandomRack</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) int</code></td>
<td class="colLast"><span class="typeNameLabel">CandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/CandidateGenerator.html#pickRandomRegion-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-int-double-">pickRandomRegion</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
int&nbsp;server,
double&nbsp;chanceOfNoSwap)</code>
<div class="block">From a list of regions pick a random one.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) <a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster.Action</a></code></td>
<td class="colLast"><span class="typeNameLabel">CandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/CandidateGenerator.html#pickRandomRegions-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-int-int-">pickRandomRegions</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
int&nbsp;thisServer,
int&nbsp;otherServer)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) int</code></td>
<td class="colLast"><span class="typeNameLabel">CandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/CandidateGenerator.html#pickRandomServer-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-">pickRandomServer</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private <a href="../../../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a></code></td>
<td class="colLast"><span class="typeNameLabel">BaseLoadBalancer.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.html#randomAssignment-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-org.apache.hadoop.hbase.client.RegionInfo-java.util.List-">randomAssignment</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
<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">Used to assign a single region to a random server.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private void</code></td>
<td class="colLast"><span class="typeNameLabel">BaseLoadBalancer.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.html#roundRobinAssignment-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-java.util.List-java.util.List-java.util.Map-">roundRobinAssignment</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
<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,
<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;assignments)</code>
<div class="block">Round robin a list of regions to a list of servers</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private org.apache.hbase.thirdparty.com.google.common.base.Optional&lt;<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster.Action</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">LocalityBasedCandidateGenerator.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/LocalityBasedCandidateGenerator.html#tryMoveOrSwap-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-int-int-int-">tryMoveOrSwap</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
int&nbsp;fromServer,
int&nbsp;fromRegion,
int&nbsp;toServer)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><span class="typeNameLabel">StochasticLoadBalancer.</span><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.html#updateCostsWithAction-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster-org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster.Action-">updateCostsWithAction</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster</a>&nbsp;cluster,
<a href="../../../../../../../org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.html" title="class in org.apache.hadoop.hbase.master.balancer">BaseLoadBalancer.Cluster.Action</a>&nbsp;action)</code>&nbsp;</td>
</tr>
</tbody>
</table>
</li>
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