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| <h2 title="Class MemStoreCompactionStrategy" class="title">Class MemStoreCompactionStrategy</h2> |
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| <li>org.apache.hadoop.hbase.regionserver.MemStoreCompactionStrategy</li> |
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| <dd><a href="../../../../../org/apache/hadoop/hbase/regionserver/AdaptiveMemStoreCompactionStrategy.html" title="class in org.apache.hadoop.hbase.regionserver">AdaptiveMemStoreCompactionStrategy</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/BasicMemStoreCompactionStrategy.html" title="class in org.apache.hadoop.hbase.regionserver">BasicMemStoreCompactionStrategy</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/EagerMemStoreCompactionStrategy.html" title="class in org.apache.hadoop.hbase.regionserver">EagerMemStoreCompactionStrategy</a></dd> |
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| <br> |
| <pre>@InterfaceAudience.Private |
| public abstract class <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.html#line.39">MemStoreCompactionStrategy</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">MemStoreCompactionStrategy is the root of a class hierarchy which defines the strategy for |
| choosing the next action to apply in an (in-memory) memstore compaction. |
| Possible action are: |
| - No-op - do nothing |
| - Flatten - to change the segment's index from CSLM to a flat representation |
| - Merge - to merge the indices of the segments in the pipeline |
| - Compact - to merge the indices while removing data redundancies |
| |
| In addition while applying flat/merge actions it is possible to count the number of unique |
| keys in the result segment.</div> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.Action.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreCompactionStrategy.Action</a></span></code> |
| <div class="block">Types of actions to be done on the pipeline upon MemStoreCompaction invocation.</div> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
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| <td class="colFirst"><code>protected <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/regionserver/MemStoreCompactionStrategy.html#cfName">cfName</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.html#COMPACTING_MEMSTORE_THRESHOLD_DEFAULT">COMPACTING_MEMSTORE_THRESHOLD_DEFAULT</a></span></code> </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/regionserver/MemStoreCompactionStrategy.html#COMPACTING_MEMSTORE_THRESHOLD_KEY">COMPACTING_MEMSTORE_THRESHOLD_KEY</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.html#LOG">LOG</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.html#pipelineThreshold">pipelineThreshold</a></span></code> </td> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.html#MemStoreCompactionStrategy-org.apache.hadoop.conf.Configuration-java.lang.String-">MemStoreCompactionStrategy</a></span>(org.apache.hadoop.conf.Configuration conf, |
| <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> cfName)</code> </td> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.Action.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreCompactionStrategy.Action</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.html#compact-org.apache.hadoop.hbase.regionserver.VersionedSegmentsList-java.lang.String-">compact</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/VersionedSegmentsList.html" title="class in org.apache.hadoop.hbase.regionserver">VersionedSegmentsList</a> versionedList, |
| <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> strategyInfo)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>abstract <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.Action.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreCompactionStrategy.Action</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.html#getAction-org.apache.hadoop.hbase.regionserver.VersionedSegmentsList-">getAction</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/VersionedSegmentsList.html" title="class in org.apache.hadoop.hbase.regionserver">VersionedSegmentsList</a> versionedList)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.Action.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreCompactionStrategy.Action</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.html#getFlattenAction--">getFlattenAction</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.Action.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreCompactionStrategy.Action</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.html#getMergingAction--">getMergingAction</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>protected abstract <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/regionserver/MemStoreCompactionStrategy.html#getName--">getName</a></span>()</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.html#resetStats--">resetStats</a></span>()</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.Action.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreCompactionStrategy.Action</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.html#simpleMergeOrFlatten-org.apache.hadoop.hbase.regionserver.VersionedSegmentsList-java.lang.String-">simpleMergeOrFlatten</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/VersionedSegmentsList.html" title="class in org.apache.hadoop.hbase.regionserver">VersionedSegmentsList</a> versionedList, |
| <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> strategy)</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><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/regionserver/MemStoreCompactionStrategy.html#toString--">toString</a></span>()</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.html#updateStats-org.apache.hadoop.hbase.regionserver.Segment-">updateStats</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a> replacement)</code> </td> |
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| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.html#line.66">MemStoreCompactionStrategy</a>(org.apache.hadoop.conf.Configuration conf, |
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| <h4>toString</h4> |
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