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| <div class="subTitle">org.apache.hadoop.hbase.wal</div> |
| <h2 title="Class RegionGroupingProvider" class="title">Class RegionGroupingProvider</h2> |
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| <ul class="inheritance"> |
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| <li>org.apache.hadoop.hbase.wal.RegionGroupingProvider</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a></dd> |
| </dl> |
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| <br> |
| <pre>@InterfaceAudience.Private |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#line.62">RegionGroupingProvider</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> |
| implements <a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a></pre> |
| <div class="block">A WAL Provider that returns a WAL per group of regions. |
| |
| This provider follows the decorator pattern and mainly holds the logic for WAL grouping. |
| WAL creation/roll/close is delegated to <a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#DELEGATE_PROVIDER"><code>DELEGATE_PROVIDER</code></a> |
| |
| Region grouping is handled via <a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.RegionGroupingStrategy.html" title="interface in org.apache.hadoop.hbase.wal"><code>RegionGroupingProvider.RegionGroupingStrategy</code></a> and can be configured via the |
| property "hbase.wal.regiongrouping.strategy". Current strategy choices are |
| <ul> |
| <li><em>defaultStrategy</em> : Whatever strategy this version of HBase picks. currently |
| "bounded".</li> |
| <li><em>identity</em> : each region belongs to its own group.</li> |
| <li><em>bounded</em> : bounded number of groups and region evenly assigned to each group.</li> |
| </ul> |
| Optionally, a FQCN to a custom implementation may be given.</div> |
| </li> |
| </ul> |
| </div> |
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| <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>(package private) static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.IdentityGroupingStrategy.html" title="class in org.apache.hadoop.hbase.wal">RegionGroupingProvider.IdentityGroupingStrategy</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.RegionGroupingStrategy.html" title="interface in org.apache.hadoop.hbase.wal">RegionGroupingProvider.RegionGroupingStrategy</a></span></code> |
| <div class="block">Map identifiers to a group number.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.Strategies.html" title="enum in org.apache.hadoop.hbase.wal">RegionGroupingProvider.Strategies</a></span></code> |
| <div class="block">Maps between configuration names for strategies and implementation classes.</div> |
| </td> |
| </tr> |
| </table> |
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| </a> |
| <h3>Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.wal.<a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a></h3> |
| <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.AsyncWriter.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider.AsyncWriter</a>, <a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.Writer.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider.Writer</a>, <a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.WriterBase.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider.WriterBase</a></code></li> |
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| <caption><span>Fields</span><span class="tabEnd"> </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>private <a href="../../../../../org/apache/hadoop/hbase/Abortable.html" title="interface in org.apache.hadoop.hbase">Abortable</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#abortable">abortable</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a><<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="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#cached">cached</a></span></code> |
| <div class="block">A group-provider mapping, make sure one-one rather than many-one mapping</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private org.apache.hadoop.conf.Configuration</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#conf">conf</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/util/KeyLocker.html" title="class in org.apache.hadoop.hbase.util">KeyLocker</a><<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/wal/RegionGroupingProvider.html#createLock">createLock</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/wal/RegionGroupingProvider.html#DEFAULT_DELEGATE_PROVIDER">DEFAULT_DELEGATE_PROVIDER</a></span></code> </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/wal/RegionGroupingProvider.html#DEFAULT_REGION_GROUPING_STRATEGY">DEFAULT_REGION_GROUPING_STRATEGY</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/wal/RegionGroupingProvider.html#DELEGATE_PROVIDER">DELEGATE_PROVIDER</a></span></code> |
| <div class="block">delegate provider for WAL creation/roll/close, but not support multiwal</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/wal/WALFactory.html" title="class in org.apache.hadoop.hbase.wal">WALFactory</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#factory">factory</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <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><<a href="../../../../../org/apache/hadoop/hbase/regionserver/wal/WALActionsListener.html" title="interface in org.apache.hadoop.hbase.regionserver.wal">WALActionsListener</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#listeners">listeners</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#LOG">LOG</a></span></code> </td> |
| </tr> |
| <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/wal/RegionGroupingProvider.html#META_WAL_GROUP_NAME">META_WAL_GROUP_NAME</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><? extends <a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#providerClass">providerClass</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <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/wal/RegionGroupingProvider.html#providerId">providerId</a></span></code> </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/wal/RegionGroupingProvider.html#REGION_GROUPING_STRATEGY">REGION_GROUPING_STRATEGY</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.RegionGroupingStrategy.html" title="interface in org.apache.hadoop.hbase.wal">RegionGroupingProvider.RegionGroupingStrategy</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#strategy">strategy</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
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| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
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| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#RegionGroupingProvider--">RegionGroupingProvider</a></span>()</code> </td> |
| </tr> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#addWALActionsListener-org.apache.hadoop.hbase.regionserver.wal.WALActionsListener-">addWALActionsListener</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/wal/WALActionsListener.html" title="interface in org.apache.hadoop.hbase.regionserver.wal">WALActionsListener</a> listener)</code> |
| <div class="block">Add a <a href="../../../../../org/apache/hadoop/hbase/regionserver/wal/WALActionsListener.html" title="interface in org.apache.hadoop.hbase.regionserver.wal"><code>WALActionsListener</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#close--">close</a></span>()</code> |
| <div class="block">shutdown utstanding WALs and clean up any persisted state.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#createProvider-java.lang.String-">createProvider</a></span>(<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> group)</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#getLogFileSize--">getLogFileSize</a></span>()</code> |
| <div class="block">Get size of the log files this provider is managing</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#getNumLogFiles--">getNumLogFiles</a></span>()</code> |
| <div class="block">Get number of the log files this provider is managing</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>(package private) <a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.RegionGroupingStrategy.html" title="interface in org.apache.hadoop.hbase.wal">RegionGroupingProvider.RegionGroupingStrategy</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#getStrategy-org.apache.hadoop.conf.Configuration-java.lang.String-java.lang.String-">getStrategy</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> key, |
| <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> defaultValue)</code> |
| <div class="block">instantiate a strategy from a config property.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#getWAL-org.apache.hadoop.hbase.client.RegionInfo-">getWAL</a></span>(<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> region)</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#getWAL-java.lang.String-">getWAL</a></span>(<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> group)</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <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><<a href="../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#getWALs--">getWALs</a></span>()</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#init-org.apache.hadoop.hbase.wal.WALFactory-org.apache.hadoop.conf.Configuration-java.lang.String-org.apache.hadoop.hbase.Abortable-">init</a></span>(<a href="../../../../../org/apache/hadoop/hbase/wal/WALFactory.html" title="class in org.apache.hadoop.hbase.wal">WALFactory</a> factory, |
| 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> providerId, |
| <a href="../../../../../org/apache/hadoop/hbase/Abortable.html" title="interface in org.apache.hadoop.hbase">Abortable</a> abortable)</code> |
| <div class="block">Set up the provider to create wals.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#shutdown--">shutdown</a></span>()</code> |
| <div class="block">persist outstanding WALs to storage and stop accepting new appends.</div> |
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| <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#getWALFileLengthProvider--">getWALFileLengthProvider</a></code></li> |
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| <div class="block">delegate provider for WAL creation/roll/close, but not support multiwal</div> |
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| <pre>private final <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a><<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="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#line.132">cached</a></pre> |
| <div class="block">A group-provider mapping, make sure one-one rather than many-one mapping</div> |
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| <pre><a href="../../../../../org/apache/hadoop/hbase/wal/RegionGroupingProvider.RegionGroupingStrategy.html" title="interface in org.apache.hadoop.hbase.wal">RegionGroupingProvider.RegionGroupingStrategy</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#line.97">getStrategy</a>(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> key, |
| <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> defaultValue) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">instantiate a strategy from a config property. |
| requires conf to have already been set (as well as anything the provider might need to read).</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#line.145">init</a>(<a href="../../../../../org/apache/hadoop/hbase/wal/WALFactory.html" title="class in org.apache.hadoop.hbase.wal">WALFactory</a> factory, |
| 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> providerId, |
| <a href="../../../../../org/apache/hadoop/hbase/Abortable.html" title="interface in org.apache.hadoop.hbase">Abortable</a> abortable) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#init-org.apache.hadoop.hbase.wal.WALFactory-org.apache.hadoop.conf.Configuration-java.lang.String-org.apache.hadoop.hbase.Abortable-">WALProvider</a></code></span></div> |
| <div class="block">Set up the provider to create wals. will only be called once per instance.</div> |
| <dl> |
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| <dd><code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#init-org.apache.hadoop.hbase.wal.WALFactory-org.apache.hadoop.conf.Configuration-java.lang.String-org.apache.hadoop.hbase.Abortable-">init</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factory</code> - factory that made us may not be null</dd> |
| <dd><code>conf</code> - may not be null</dd> |
| <dd><code>providerId</code> - differentiate between providers from one factory. may be null</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <pre>private <a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#line.176">createProvider</a>(<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> group) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <pre>public <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><<a href="../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#line.185">getWALs</a>()</pre> |
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| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the List of WALs that are used by this server</dd> |
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| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
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| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <pre>public <a href="../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal">WAL</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#line.208">getWAL</a>(<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> region) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
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| <dd><code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#getWAL-org.apache.hadoop.hbase.client.RegionInfo-">getWAL</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>region</code> - the region which we want to get a WAL for it. Could be null.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a WAL for writing entries for the given region.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <h4>shutdown</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#line.228">shutdown</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#shutdown--">WALProvider</a></code></span></div> |
| <div class="block">persist outstanding WALs to storage and stop accepting new appends. This method serves as |
| shorthand for sending a sync to every WAL provided by a given implementation. Those WALs will |
| also stop accepting new writes.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#shutdown--">shutdown</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a></code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="close--"> |
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| </a> |
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| <h4>close</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#line.248">close</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#close--">WALProvider</a></code></span></div> |
| <div class="block">shutdown utstanding WALs and clean up any persisted state. Call this method only when you will |
| not need to replay any of the edits to the WALs from this provider. After this call completes, |
| the underlying resources should have been reclaimed.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#close--">close</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a></code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getNumLogFiles--"> |
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| <h4>getNumLogFiles</h4> |
| <pre>public long <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#line.277">getNumLogFiles</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#getNumLogFiles--">WALProvider</a></code></span></div> |
| <div class="block">Get number of the log files this provider is managing</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#getNumLogFiles--">getNumLogFiles</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a></code></dd> |
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| <h4>getLogFileSize</h4> |
| <pre>public long <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#line.286">getLogFileSize</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#getLogFileSize--">WALProvider</a></code></span></div> |
| <div class="block">Get size of the log files this provider is managing</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#getLogFileSize--">getLogFileSize</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="addWALActionsListener-org.apache.hadoop.hbase.regionserver.wal.WALActionsListener-"> |
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| <h4>addWALActionsListener</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/RegionGroupingProvider.html#line.295">addWALActionsListener</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/wal/WALActionsListener.html" title="interface in org.apache.hadoop.hbase.regionserver.wal">WALActionsListener</a> listener)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#addWALActionsListener-org.apache.hadoop.hbase.regionserver.wal.WALActionsListener-">WALProvider</a></code></span></div> |
| <div class="block">Add a <a href="../../../../../org/apache/hadoop/hbase/regionserver/wal/WALActionsListener.html" title="interface in org.apache.hadoop.hbase.regionserver.wal"><code>WALActionsListener</code></a>. |
| <p> |
| Notice that you must call this method before calling <a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#getWAL-org.apache.hadoop.hbase.client.RegionInfo-"><code>WALProvider.getWAL(RegionInfo)</code></a> as this method |
| will not effect the <a href="../../../../../org/apache/hadoop/hbase/wal/WAL.html" title="interface in org.apache.hadoop.hbase.wal"><code>WAL</code></a> which has already been created. And as long as we can only it |
| when initialization, it is not thread safe.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#addWALActionsListener-org.apache.hadoop.hbase.regionserver.wal.WALActionsListener-">addWALActionsListener</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal">WALProvider</a></code></dd> |
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