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 <h1 title="Uses of Package org.apache.hadoop.hbase.wal" class="title">Uses of Package<br>org.apache.hadoop.hbase.wal</h1>
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 <caption><span>Packages that use <a href="../../../../../org/apache/hadoop/hbase/wal/package-summary.html">org.apache.hadoop.hbase.wal</a></span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colFirst" scope="col">Package</th>
 <th class="colLast" scope="col">Description</th>
 </tr>
 <tbody>
 <tr class="altColor">
 <td class="colFirst"><a href="#org.apache.hadoop.hbase.client">org.apache.hadoop.hbase.client</a></td>
 <td class="colLast">
 <div class="block">Provides HBase Client</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><a href="#org.apache.hadoop.hbase.constraint">org.apache.hadoop.hbase.constraint</a></td>
 <td class="colLast">
 <div class="block">Restrict the domain of a data attribute, often times to fulfill business rules/requirements.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><a href="#org.apache.hadoop.hbase.coprocessor">org.apache.hadoop.hbase.coprocessor</a></td>
 <td class="colLast">
 <div class="block">Table of Contents</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><a href="#org.apache.hadoop.hbase.mapreduce">org.apache.hadoop.hbase.mapreduce</a></td>
 <td class="colLast">
 <div class="block">Provides HBase <a href="https://cwiki.apache.org/confluence/display/HADOOP2/HadoopMapReduce">MapReduce</a>
 Input/OutputFormats, a table indexing MapReduce job, and utility methods.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><a href="#org.apache.hadoop.hbase.master.region">org.apache.hadoop.hbase.master.region</a></td>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><a href="#org.apache.hadoop.hbase.regionserver">org.apache.hadoop.hbase.regionserver</a></td>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><a href="#org.apache.hadoop.hbase.regionserver.wal">org.apache.hadoop.hbase.regionserver.wal</a></td>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><a href="#org.apache.hadoop.hbase.replication">org.apache.hadoop.hbase.replication</a></td>
 <td class="colLast">
 <div class="block">Multi Cluster Replication</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><a href="#org.apache.hadoop.hbase.replication.regionserver">org.apache.hadoop.hbase.replication.regionserver</a></td>
 <td class="colLast">&nbsp;</td>
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 <tr class="rowColor">
 <td class="colFirst"><a href="#org.apache.hadoop.hbase.security.access">org.apache.hadoop.hbase.security.access</a></td>
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 <td class="colFirst"><a href="#org.apache.hadoop.hbase.wal">org.apache.hadoop.hbase.wal</a></td>
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 <th class="colOne" scope="col">Class and Description</th>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WAL.Entry.html#org.apache.hadoop.hbase.client">WAL.Entry</a>
 <div class="block">Utility class that lets us keep track of the edit with it's key.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALEdit.html#org.apache.hadoop.hbase.constraint">WALEdit</a>
 <div class="block">Used in HBase's transaction log (WAL) to represent a collection of edits (Cell/KeyValue objects)
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WAL.html#org.apache.hadoop.hbase.coprocessor">WAL</a>
 <div class="block">A Write Ahead Log (WAL) provides service for reading, writing waledits.</div>
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 <div class="block">Used in HBase's transaction log (WAL) to represent a collection of edits (Cell/KeyValue objects)
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALKey.html#org.apache.hadoop.hbase.coprocessor">WALKey</a>
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 <div class="block">Used in HBase's transaction log (WAL) to represent a collection of edits (Cell/KeyValue objects)
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WAL.html#org.apache.hadoop.hbase.master.region">WAL</a>
 <div class="block">A Write Ahead Log (WAL) provides service for reading, writing waledits.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALFactory.html#org.apache.hadoop.hbase.master.region">WALFactory</a>
 <div class="block">Entry point for users of the Write Ahead Log.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WAL.html#org.apache.hadoop.hbase.regionserver">WAL</a>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALEdit.html#org.apache.hadoop.hbase.regionserver">WALEdit</a>
 <div class="block">Used in HBase's transaction log (WAL) to represent a collection of edits (Cell/KeyValue objects)
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALFactory.html#org.apache.hadoop.hbase.regionserver">WALFactory</a>
 <div class="block">Entry point for users of the Write Ahead Log.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALKey.html#org.apache.hadoop.hbase.regionserver">WALKey</a>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WAL.Entry.html#org.apache.hadoop.hbase.regionserver.wal">WAL.Entry</a>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WAL.Reader.html#org.apache.hadoop.hbase.regionserver.wal">WAL.Reader</a>
 <div class="block">When outside clients need to consume persisted WALs, they rely on a provided
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALEdit.html#org.apache.hadoop.hbase.regionserver.wal">WALEdit</a>
 <div class="block">Used in HBase's transaction log (WAL) to represent a collection of edits (Cell/KeyValue objects)
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALKey.html#org.apache.hadoop.hbase.regionserver.wal">WALKey</a>
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 <caption><span>Classes in <a href="../../../../../org/apache/hadoop/hbase/wal/package-summary.html">org.apache.hadoop.hbase.wal</a> used by <a href="../../../../../org/apache/hadoop/hbase/wal/package-summary.html">org.apache.hadoop.hbase.wal</a></span><span class="tabEnd">&nbsp;</span></caption>
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 <th class="colOne" scope="col">Class and Description</th>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/AbstractFSWALProvider.html#org.apache.hadoop.hbase.wal">AbstractFSWALProvider</a>
 <div class="block">Base class of a WAL Provider that returns a single thread safe WAL that writes to Hadoop FS.</div>
 </td>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/AbstractFSWALProvider.Reader.html#org.apache.hadoop.hbase.wal">AbstractFSWALProvider.Reader</a>&nbsp;</td>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/AbstractRecoveredEditsOutputSink.html#org.apache.hadoop.hbase.wal">AbstractRecoveredEditsOutputSink</a>&nbsp;</td>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/AbstractRecoveredEditsOutputSink.RecoveredEditsWriter.html#org.apache.hadoop.hbase.wal">AbstractRecoveredEditsOutputSink.RecoveredEditsWriter</a>
 <div class="block">Private data structure that wraps a <a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.Writer.html" title="interface in org.apache.hadoop.hbase.wal"><code>WALProvider.Writer</code></a> and its Path, also collecting
  statistics about the data written to this output.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/AbstractWALRoller.RollController.html#org.apache.hadoop.hbase.wal">AbstractWALRoller.RollController</a>
 <div class="block">Independently control the roll of each wal.</div>
 </td>
 </tr>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/AsyncFSWALProvider.AsyncWriter.html#org.apache.hadoop.hbase.wal">AsyncFSWALProvider.AsyncWriter</a>&nbsp;</td>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/EntryBuffers.html#org.apache.hadoop.hbase.wal">EntryBuffers</a>
 <div class="block">Class which accumulates edits and separates them into a buffer per region while simultaneously
  accounting RAM usage.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/EntryBuffers.RegionEntryBuffer.html#org.apache.hadoop.hbase.wal">EntryBuffers.RegionEntryBuffer</a>
 <div class="block">A buffer of some number of edits for a given region.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/FSHLogProvider.Writer.html#org.apache.hadoop.hbase.wal">FSHLogProvider.Writer</a>&nbsp;</td>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/OutputSink.html#org.apache.hadoop.hbase.wal">OutputSink</a>
 <div class="block">The following class is an abstraction class to provide a common interface to support different
  ways of consuming recovered edits.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/OutputSink.WriterThread.html#org.apache.hadoop.hbase.wal">OutputSink.WriterThread</a>&nbsp;</td>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/RegionGroupingProvider.RegionGroupingStrategy.html#org.apache.hadoop.hbase.wal">RegionGroupingProvider.RegionGroupingStrategy</a>
 <div class="block">Map identifiers to a group number.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/RegionGroupingProvider.Strategies.html#org.apache.hadoop.hbase.wal">RegionGroupingProvider.Strategies</a>
 <div class="block">Maps between configuration names for strategies and implementation classes.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WAL.html#org.apache.hadoop.hbase.wal">WAL</a>
 <div class="block">A Write Ahead Log (WAL) provides service for reading, writing waledits.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WAL.Entry.html#org.apache.hadoop.hbase.wal">WAL.Entry</a>
 <div class="block">Utility class that lets us keep track of the edit with it's key.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WAL.Reader.html#org.apache.hadoop.hbase.wal">WAL.Reader</a>
 <div class="block">When outside clients need to consume persisted WALs, they rely on a provided
  Reader.</div>
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 </tr>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALEdit.html#org.apache.hadoop.hbase.wal">WALEdit</a>
 <div class="block">Used in HBase's transaction log (WAL) to represent a collection of edits (Cell/KeyValue objects)
  that came in as a single transaction.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALFactory.html#org.apache.hadoop.hbase.wal">WALFactory</a>
 <div class="block">Entry point for users of the Write Ahead Log.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALFactory.Providers.html#org.apache.hadoop.hbase.wal">WALFactory.Providers</a>
 <div class="block">Maps between configuration names for providers and implementation classes.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALKey.html#org.apache.hadoop.hbase.wal">WALKey</a>
 <div class="block">Key for WAL Entry.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALKeyImpl.html#org.apache.hadoop.hbase.wal">WALKeyImpl</a>
 <div class="block">Default implementation of Key for an Entry in the WAL.</div>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALProvider.html#org.apache.hadoop.hbase.wal">WALProvider</a>
 <div class="block">The Write Ahead Log (WAL) stores all durable edits to the HRegion.</div>
 </td>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALProvider.AsyncWriter.html#org.apache.hadoop.hbase.wal">WALProvider.AsyncWriter</a>&nbsp;</td>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALProvider.WriterBase.html#org.apache.hadoop.hbase.wal">WALProvider.WriterBase</a>&nbsp;</td>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALSplitter.html#org.apache.hadoop.hbase.wal">WALSplitter</a>
 <div class="block">Split RegionServer WAL files.</div>
 </td>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALSplitter.CorruptedLogFileException.html#org.apache.hadoop.hbase.wal">WALSplitter.CorruptedLogFileException</a>&nbsp;</td>
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 <tr class="rowColor">
 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALSplitter.PipelineController.html#org.apache.hadoop.hbase.wal">WALSplitter.PipelineController</a>
 <div class="block">Contains some methods to control WAL-entries producer / consumer interactions</div>
 </td>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALSplitter.SplitWALResult.html#org.apache.hadoop.hbase.wal">WALSplitter.SplitWALResult</a>
 <div class="block">Data structure returned as result by #splitWAL(FileStatus, CancelableProgressable).</div>
 </td>
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 <td class="colOne"><a href="../../../../../org/apache/hadoop/hbase/wal/class-use/WALSplitUtil.MutationReplay.html#org.apache.hadoop.hbase.wal">WALSplitUtil.MutationReplay</a>
 <div class="block">A struct used by getMutationsFromWALEntry</div>
 </td>
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