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<div class="subTitle">org.apache.hadoop.hbase.regionserver</div>
<h2 title="Class CompactingMemStore" class="title">Class CompactingMemStore</h2>
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<ul class="inheritance">
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<li><a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html" title="class in org.apache.hadoop.hbase.regionserver">org.apache.hadoop.hbase.regionserver.AbstractMemStore</a></li>
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<li>org.apache.hadoop.hbase.regionserver.CompactingMemStore</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStore.html" title="interface in org.apache.hadoop.hbase.regionserver">MemStore</a></dd>
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<pre>@InterfaceAudience.Private
public class <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#line.51">CompactingMemStore</a>
extends <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html" title="class in org.apache.hadoop.hbase.regionserver">AbstractMemStore</a></pre>
<div class="block">A memstore implementation which supports in-memory compaction. A compaction pipeline is added
between the active set and the snapshot data structures; it consists of a list of segments that
are subject to compaction. Like the snapshot, all pipeline segments are read-only; updates only
affect the active set. To ensure this property we take advantage of the existing blocking
mechanism -- the active set is pushed to the pipeline while holding the region's updatesLock in
exclusive mode. Periodically, a compaction is applied in the background to all pipeline segments
resulting in a single read-only component. The ``old'' segments are discarded when no scanner is
reading them.</div>
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<caption><span>Nested Classes</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.IndexType.html" title="enum in org.apache.hadoop.hbase.regionserver">CompactingMemStore.IndexType</a></span></code>
<div class="block">Types of indexes (part of immutable segments) to be used after flattening, compaction, or merge
are applied.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.InMemoryCompactionRunnable.html" title="class in org.apache.hadoop.hbase.regionserver">CompactingMemStore.InMemoryCompactionRunnable</a></span></code>
<div class="block">The in-memory-flusher thread performs the flush asynchronously.</div>
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<h3>Field Summary</h3>
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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>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicBoolean.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicBoolean</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#allowCompaction">allowCompaction</a></span></code>&nbsp;</td>
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<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/regionserver/CompactingMemStore.html#COMPACTING_MEMSTORE_TYPE_DEFAULT">COMPACTING_MEMSTORE_TYPE_DEFAULT</a></span></code>&nbsp;</td>
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<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/CompactingMemStore.html#COMPACTING_MEMSTORE_TYPE_KEY">COMPACTING_MEMSTORE_TYPE_KEY</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactor.html" title="class in org.apache.hadoop.hbase.regionserver">MemStoreCompactor</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#compactor">compactor</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>private boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#compositeSnapshot">compositeSnapshot</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#DEEP_OVERHEAD">DEEP_OVERHEAD</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#IN_MEMORY_CONPACTION_POOL_SIZE_DEFAULT">IN_MEMORY_CONPACTION_POOL_SIZE_DEFAULT</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/regionserver/CompactingMemStore.html#IN_MEMORY_CONPACTION_POOL_SIZE_KEY">IN_MEMORY_CONPACTION_POOL_SIZE_KEY</a></span></code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>private static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#IN_MEMORY_FLUSH_MULTIPLIER">IN_MEMORY_FLUSH_MULTIPLIER</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/regionserver/CompactingMemStore.html#IN_MEMORY_FLUSH_THRESHOLD_FACTOR_KEY">IN_MEMORY_FLUSH_THRESHOLD_FACTOR_KEY</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.IndexType.html" title="enum in org.apache.hadoop.hbase.regionserver">CompactingMemStore.IndexType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#indexType">indexType</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicBoolean.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicBoolean</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#inMemoryCompactionInProgress">inMemoryCompactionInProgress</a></span></code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>private long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#inmemoryFlushSize">inmemoryFlushSize</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>private boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#inWalReplay">inWalReplay</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private static org.slf4j.Logger</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#LOG">LOG</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactionPipeline.html" title="class in org.apache.hadoop.hbase.regionserver">CompactionPipeline</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#pipeline">pipeline</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/HStore.html" title="class in org.apache.hadoop.hbase.regionserver">HStore</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#store">store</a></span></code>&nbsp;</td>
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<h3>Fields inherited from class&nbsp;org.apache.hadoop.hbase.regionserver.<a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html" title="class in org.apache.hadoop.hbase.regionserver">AbstractMemStore</a></h3>
<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#FIXED_OVERHEAD">FIXED_OVERHEAD</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#regionServices">regionServices</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#snapshot">snapshot</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#snapshotId">snapshotId</a></code></li>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#CompactingMemStore-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.CellComparator-org.apache.hadoop.hbase.regionserver.HStore-org.apache.hadoop.hbase.regionserver.RegionServicesForStores-org.apache.hadoop.hbase.MemoryCompactionPolicy-">CompactingMemStore</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf,
<a href="../../../../../org/apache/hadoop/hbase/CellComparator.html" title="interface in org.apache.hadoop.hbase">CellComparator</a>&nbsp;c,
<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStore.html" title="class in org.apache.hadoop.hbase.regionserver">HStore</a>&nbsp;store,
<a href="../../../../../org/apache/hadoop/hbase/regionserver/RegionServicesForStores.html" title="class in org.apache.hadoop.hbase.regionserver">RegionServicesForStores</a>&nbsp;regionServices,
<a href="../../../../../org/apache/hadoop/hbase/MemoryCompactionPolicy.html" title="enum in org.apache.hadoop.hbase">MemoryCompactionPolicy</a>&nbsp;compactionPolicy)</code>&nbsp;</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</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="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete 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>
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<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#checkAndAddToActiveSize-org.apache.hadoop.hbase.regionserver.MutableSegment-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.regionserver.MemStoreSizing-">checkAndAddToActiveSize</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">MutableSegment</a>&nbsp;currActive,
<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;cellToAdd,
<a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreSizing.html" title="interface in org.apache.hadoop.hbase.regionserver">MemStoreSizing</a>&nbsp;memstoreSizing)</code>
<div class="block">Check whether anything need to be done based on the current active set size.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>protected <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/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#createList-int-">createList</a></span>(int&nbsp;capacity)</code>&nbsp;</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>protected <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactor.html" title="class in org.apache.hadoop.hbase.regionserver">MemStoreCompactor</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#createMemStoreCompactor-org.apache.hadoop.hbase.MemoryCompactionPolicy-">createMemStoreCompactor</a></span>(<a href="../../../../../org/apache/hadoop/hbase/MemoryCompactionPolicy.html" title="enum in org.apache.hadoop.hbase">MemoryCompactionPolicy</a>&nbsp;compactionPolicy)</code>&nbsp;</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#debug--">debug</a></span>()</code>&nbsp;</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#flattenOneSegment-long-org.apache.hadoop.hbase.regionserver.MemStoreCompactionStrategy.Action-">flattenOneSegment</a></span>(long&nbsp;requesterVersion,
<a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreCompactionStrategy.Action.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreCompactionStrategy.Action</a>&nbsp;action)</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#flushInMemory--">flushInMemory</a></span>()</code>&nbsp;</td>
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<tr id="i6" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#flushInMemory-org.apache.hadoop.hbase.regionserver.MutableSegment-">flushInMemory</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">MutableSegment</a>&nbsp;currActive)</code>&nbsp;</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/CompactingMemStore.html#getFamilyName--">getFamilyName</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>private byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#getFamilyNameInBytes--">getFamilyNameInBytes</a></span>()</code>&nbsp;</td>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreSize.html" title="class in org.apache.hadoop.hbase.regionserver">MemStoreSize</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#getFlushableSize--">getFlushableSize</a></span>()</code>
<div class="block">Flush will first clear out the data in snapshot if any (It will take a second flush invocation
to clear the current Cell set).</div>
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<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/VersionedSegmentsList.html" title="class in org.apache.hadoop.hbase.regionserver">VersionedSegmentsList</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#getImmutableSegments--">getImmutableSegments</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.IndexType.html" title="enum in org.apache.hadoop.hbase.regionserver">CompactingMemStore.IndexType</a></code></td>
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<tr id="i12" class="altColor">
<td class="colFirst"><code>(package private) long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#getInmemoryFlushSize--">getInmemoryFlushSize</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#getLastSegment--">getLastSegment</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>(package private) <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#getNextRow-org.apache.hadoop.hbase.Cell-">getNextRow</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;cell)</code>&nbsp;</td>
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<tr id="i15" class="rowColor">
<td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ThreadPoolExecutor.html?is-external=true" title="class or interface in java.util.concurrent">ThreadPoolExecutor</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#getPool--">getPool</a></span>()</code>&nbsp;</td>
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<tr id="i16" class="altColor">
<td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/RegionServicesForStores.html" title="class in org.apache.hadoop.hbase.regionserver">RegionServicesForStores</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#getRegionServices--">getRegionServices</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i17" 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/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#getScanners-long-">getScanners</a></span>(long&nbsp;readPt)</code>
<div class="block">This method is protected under <code>HStore#lock</code> read lock.</div>
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</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>protected <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/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#getSegments--">getSegments</a></span>()</code>
<div class="block">Returns an ordered list of segments from most recent to oldest in memstore</div>
</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#getSmallestReadPoint--">getSmallestReadPoint</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/HStore.html" title="class in org.apache.hadoop.hbase.regionserver">HStore</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#getStore--">getStore</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#hasImmutableSegments--">hasImmutableSegments</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>protected long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#heapSize--">heapSize</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#initInmemoryFlushSize-org.apache.hadoop.conf.Configuration-">initInmemoryFlushSize</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#inMemoryCompaction--">inMemoryCompaction</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i25" class="rowColor">
<td class="colFirst"><code>(package private) boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#isMemStoreFlushingInMemory--">isMemStoreFlushingInMemory</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i26" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#isSloppy--">isSloppy</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i27" class="rowColor">
<td class="colFirst"><code>protected long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#keySize--">keySize</a></span>()</code>
<div class="block">Returns The total size of cells in this memstore.</div>
</td>
</tr>
<tr id="i28" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#postUpdate-org.apache.hadoop.hbase.regionserver.MutableSegment-">postUpdate</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">MutableSegment</a>&nbsp;currentActive)</code>
<div class="block">Issue any post update synchronization and tests</div>
</td>
</tr>
<tr id="i29" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#preFlushSeqIDEstimation--">preFlushSeqIDEstimation</a></span>()</code>
<div class="block">This method is called before the flush is executed.</div>
</td>
</tr>
<tr id="i30" class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#preUpdate-org.apache.hadoop.hbase.regionserver.MutableSegment-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.regionserver.MemStoreSizing-">preUpdate</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">MutableSegment</a>&nbsp;currentActive,
<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;cell,
<a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreSizing.html" title="interface in org.apache.hadoop.hbase.regionserver">MemStoreSizing</a>&nbsp;memstoreSizing)</code>
<div class="block">Issue any synchronization and test needed before applying the update For compacting memstore
this means checking the update can increase the size without overflow</div>
</td>
</tr>
<tr id="i31" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#pushActiveToPipeline-org.apache.hadoop.hbase.regionserver.MutableSegment-boolean-">pushActiveToPipeline</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">MutableSegment</a>&nbsp;currActive,
boolean&nbsp;checkEmpty)</code>
<div class="block">NOTE: When <a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#flushInMemory-org.apache.hadoop.hbase.regionserver.MutableSegment-"><code>flushInMemory(MutableSegment)</code></a> calls this method, due to
concurrent writes and because we first add cell size to currActive.getDataSize and then
actually add cell to currActive.cellSet, it is possible that currActive.getDataSize could not
accommodate cellToAdd but currActive.cellSet is still empty if pending writes which not yet add
cells to currActive.cellSet,so for
<a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#flushInMemory-org.apache.hadoop.hbase.regionserver.MutableSegment-"><code>flushInMemory(MutableSegment)</code></a>,checkEmpty parameter is false.</div>
</td>
</tr>
<tr id="i32" class="altColor">
<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#pushPipelineToSnapshot--">pushPipelineToSnapshot</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i33" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#pushTailToSnapshot--">pushTailToSnapshot</a></span>()</code>&nbsp;</td>
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<tr id="i34" class="altColor">
<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#pushToSnapshot-java.util.List-">pushToSnapshot</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/regionserver/ImmutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">ImmutableSegment</a>&gt;&nbsp;segments)</code>&nbsp;</td>
</tr>
<tr id="i35" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#setCompositeSnapshot-boolean-">setCompositeSnapshot</a></span>(boolean&nbsp;useCompositeSnapshot)</code>&nbsp;</td>
</tr>
<tr id="i36" class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#setIndexType-org.apache.hadoop.hbase.regionserver.CompactingMemStore.IndexType-">setIndexType</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.IndexType.html" title="enum in org.apache.hadoop.hbase.regionserver">CompactingMemStore.IndexType</a>&nbsp;type)</code>&nbsp;</td>
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<tr id="i37" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#setInMemoryCompactionCompleted--">setInMemoryCompactionCompleted</a></span>()</code>&nbsp;</td>
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<tr id="i38" class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#setInMemoryCompactionFlag--">setInMemoryCompactionFlag</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i39" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreSize.html" title="class in org.apache.hadoop.hbase.regionserver">MemStoreSize</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#size--">size</a></span>()</code>&nbsp;</td>
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<tr id="i40" class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#sizeAddedPreOperation--">sizeAddedPreOperation</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i41" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreSnapshot.html" title="class in org.apache.hadoop.hbase.regionserver">MemStoreSnapshot</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#snapshot--">snapshot</a></span>()</code>
<div class="block">Push the current active memstore segment into the pipeline and create a snapshot of the tail of
current compaction pipeline Snapshot must be cleared by call to <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#clearSnapshot-long-"><code>AbstractMemStore.clearSnapshot(long)</code></a>.</div>
</td>
</tr>
<tr id="i42" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#startReplayingFromWAL--">startReplayingFromWAL</a></span>()</code>
<div class="block">This message intends to inform the MemStore that next coming updates are going to be part of
the replaying edits from WAL</div>
</td>
</tr>
<tr id="i43" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#stopCompaction--">stopCompaction</a></span>()</code>
<div class="block">The request to cancel the compaction asynchronous task (caused by in-memory flush) The
compaction may still happen if the request was sent too late Non-blocking request</div>
</td>
</tr>
<tr id="i44" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#stopReplayingFromWAL--">stopReplayingFromWAL</a></span>()</code>
<div class="block">This message intends to inform the MemStore that the replaying edits from WAL are done</div>
</td>
</tr>
<tr id="i45" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#swapCompactedSegments-org.apache.hadoop.hbase.regionserver.VersionedSegmentsList-org.apache.hadoop.hbase.regionserver.ImmutableSegment-boolean-">swapCompactedSegments</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/VersionedSegmentsList.html" title="class in org.apache.hadoop.hbase.regionserver">VersionedSegmentsList</a>&nbsp;versionedList,
<a href="../../../../../org/apache/hadoop/hbase/regionserver/ImmutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">ImmutableSegment</a>&nbsp;result,
boolean&nbsp;merge)</code>&nbsp;</td>
</tr>
<tr id="i46" class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#swapPipelineWithNull-org.apache.hadoop.hbase.regionserver.VersionedSegmentsList-">swapPipelineWithNull</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/VersionedSegmentsList.html" title="class in org.apache.hadoop.hbase.regionserver">VersionedSegmentsList</a>&nbsp;segments)</code>&nbsp;</td>
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<tr id="i47" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#tryFlushInMemoryAndCompactingAsync-org.apache.hadoop.hbase.regionserver.MutableSegment-">tryFlushInMemoryAndCompactingAsync</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">MutableSegment</a>&nbsp;currActive)</code>
<div class="block">Try to flush the currActive in memory and submit the background
<a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.InMemoryCompactionRunnable.html" title="class in org.apache.hadoop.hbase.regionserver"><code>CompactingMemStore.InMemoryCompactionRunnable</code></a> to
<a href="../../../../../org/apache/hadoop/hbase/regionserver/RegionServicesForStores.html#getInMemoryCompactionPool--"><code>RegionServicesForStores.getInMemoryCompactionPool()</code></a>.</div>
</td>
</tr>
<tr id="i48" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#updateLowestUnflushedSequenceIdInWAL-boolean-">updateLowestUnflushedSequenceIdInWAL</a></span>(boolean&nbsp;onlyIfGreater)</code>
<div class="block">Updates the wal with the lowest sequence id (oldest entry) that is still in memory</div>
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<h3>Methods inherited from class&nbsp;org.apache.hadoop.hbase.regionserver.<a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html" title="class in org.apache.hadoop.hbase.regionserver">AbstractMemStore</a></h3>
<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#add-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.regionserver.MemStoreSizing-">add</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#add-java.lang.Iterable-org.apache.hadoop.hbase.regionserver.MemStoreSizing-">add</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#addToScanners-java.util.List-long-java.util.List-">addToScanners</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#addToScanners-org.apache.hadoop.hbase.regionserver.Segment-long-java.util.List-">addToScanners</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#clearSnapshot-long-">clearSnapshot</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#doAdd-org.apache.hadoop.hbase.regionserver.MutableSegment-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.regionserver.MemStoreSizing-">doAdd</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#doClearSnapShot--">doClearSnapShot</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#dump-org.slf4j.Logger-">dump</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#getActive--">getActive</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#getComparator--">getComparator</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#getConfiguration--">getConfiguration</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#getLowest-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-">getLowest</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#getNextRow-org.apache.hadoop.hbase.Cell-java.util.NavigableSet-">getNextRow</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#getSnapshot--">getSnapshot</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#getSnapshotSize--">getSnapshotSize</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#resetActive--">resetActive</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#resetTimeOfOldestEdit--">resetTimeOfOldestEdit</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#timeOfOldestEdit--">timeOfOldestEdit</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#toString--">toString</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html#upsert-java.lang.Iterable-long-org.apache.hadoop.hbase.regionserver.MemStoreSizing-">upsert</a></code></li>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>Total memory occupied by this MemStore. This won't include any size occupied by the
snapshot. We assume the snapshot will get cleared soon. This is not thread safe and the
memstore may be changed while computing its size. It is the responsibility of the
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<dd><code>cell</code> - the cell to be added</dd>
<dd><code>memstoreSizing</code> - object to accumulate region size changes</dd>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>requesterVersion</code> - The caller must hold the VersionedList of the pipeline with version
taken earlier. This version must be passed as a parameter here. The
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<pre>public&nbsp;<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStore.html" title="class in org.apache.hadoop.hbase.regionserver">HStore</a>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.html#line.386">getStore</a>()</pre>
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<div class="block">This method is protected under <code>HStore#lock</code> read lock.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>scanner over the memstore. This might include scanner over the snapshot when one is
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<dt><span class="throwsLabel">Throws:</span></dt>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>cellToAdd</code> - cell to be added to the segment</dd>
<dd><code>memstoreSizing</code> - object to accumulate changed size</dd>
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<dd>true if the cell can be added to the currActive</dd>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<div class="block">The request to cancel the compaction asynchronous task (caused by in-memory flush) The
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accommodate cellToAdd but currActive.cellSet is still empty if pending writes which not yet add
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cell</code> - Find the row that comes after this one. If null, we return the first.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Next row or null if none found.</dd>
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