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| <div class="subTitle">org.apache.hadoop.hbase.master.balancer</div> |
| <h2 title="Class MoveCostFunction" class="title">Class MoveCostFunction</h2> |
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| <li> |
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| <li><a href="../../../../../../org/apache/hadoop/hbase/master/balancer/CostFunction.html" title="class in org.apache.hadoop.hbase.master.balancer">org.apache.hadoop.hbase.master.balancer.CostFunction</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.hadoop.hbase.master.balancer.MoveCostFunction</li> |
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| <pre>@InterfaceAudience.Private |
| class <a href="../../../../../../src-html/org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#line.28">MoveCostFunction</a> |
| extends <a href="../../../../../../org/apache/hadoop/hbase/master/balancer/CostFunction.html" title="class in org.apache.hadoop.hbase.master.balancer">CostFunction</a></pre> |
| <div class="block">Given the starting state of the regions and a potential ending state compute cost based upon the |
| number of regions that have moved.</div> |
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| <h3>Field Summary</h3> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>private static float</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#DEFAULT_MAX_MOVE_PERCENT">DEFAULT_MAX_MOVE_PERCENT</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#DEFAULT_MAX_MOVES">DEFAULT_MAX_MOVES</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) static float</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#DEFAULT_MOVE_COST">DEFAULT_MOVE_COST</a></span></code> </td> |
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| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) static float</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#DEFAULT_MOVE_COST_OFFPEAK">DEFAULT_MOVE_COST_OFFPEAK</a></span></code> </td> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>private 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/balancer/MoveCostFunction.html#MAX_MOVES_PERCENT_KEY">MAX_MOVES_PERCENT_KEY</a></span></code> </td> |
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| <tr class="rowColor"> |
| <td class="colFirst"><code>private float</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#maxMovesPercent">maxMovesPercent</a></span></code> </td> |
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| <td class="colFirst"><code>private 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/balancer/MoveCostFunction.html#MOVE_COST_KEY">MOVE_COST_KEY</a></span></code> </td> |
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| <td class="colFirst"><code>private 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/balancer/MoveCostFunction.html#MOVE_COST_OFFPEAK_KEY">MOVE_COST_OFFPEAK_KEY</a></span></code> </td> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>private float</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#moveCost">moveCost</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private float</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#moveCostOffPeak">moveCostOffPeak</a></span></code> </td> |
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| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/master/balancer/ClusterInfoProvider.html" title="interface in org.apache.hadoop.hbase.master.balancer">ClusterInfoProvider</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#provider">provider</a></span></code> </td> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#MoveCostFunction-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.master.balancer.ClusterInfoProvider-">MoveCostFunction</a></span>(org.apache.hadoop.conf.Configuration conf, |
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| <td class="colFirst"><code>protected double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#cost--">cost</a></span>()</code> </td> |
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| <td class="colFirst"><code>(package private) void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#prepare-org.apache.hadoop.hbase.master.balancer.BalancerClusterState-">prepare</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/balancer/BalancerClusterState.html" title="class in org.apache.hadoop.hbase.master.balancer">BalancerClusterState</a> 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> |
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| <h4>MOVE_COST_KEY</h4> |
| <pre>private static final <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> <a href="../../../../../../src-html/org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#line.29">MOVE_COST_KEY</a></pre> |
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| <h4>moveCostOffPeak</h4> |
| <pre>private final float <a href="../../../../../../src-html/org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#line.42">moveCostOffPeak</a></pre> |
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| <h4>MoveCostFunction</h4> |
| <pre><a href="../../../../../../src-html/org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#line.44">MoveCostFunction</a>(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../../org/apache/hadoop/hbase/master/balancer/ClusterInfoProvider.html" title="interface in org.apache.hadoop.hbase.master.balancer">ClusterInfoProvider</a> provider)</pre> |
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| <h4>prepare</h4> |
| <pre>void <a href="../../../../../../src-html/org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#line.56">prepare</a>(<a href="../../../../../../org/apache/hadoop/hbase/master/balancer/BalancerClusterState.html" title="class in org.apache.hadoop.hbase.master.balancer">BalancerClusterState</a> cluster)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../org/apache/hadoop/hbase/master/balancer/CostFunction.html#prepare-org.apache.hadoop.hbase.master.balancer.BalancerClusterState-">CostFunction</a></code></span></div> |
| <div class="block">Called once per LB invocation to give the cost function to initialize it's state, and perform |
| any costly calculation.</div> |
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| <h4>cost</h4> |
| <pre>protected double <a href="../../../../../../src-html/org/apache/hadoop/hbase/master/balancer/MoveCostFunction.html#line.68">cost</a>()</pre> |
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