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| <h2 title="Class DisabledWALProvider" class="title">Class DisabledWALProvider</h2> |
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| <pre>@InterfaceAudience.Private |
| class <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/DisabledWALProvider.html#line.53">DisabledWALProvider</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">No-op implementation of <a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html" title="interface in org.apache.hadoop.hbase.wal"><code>WALProvider</code></a> used when the WAL is disabled. |
| |
| Should only be used when severe data loss is acceptable.</div> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/DisabledWALProvider.DisabledWAL.html" title="class in org.apache.hadoop.hbase.wal">DisabledWALProvider.DisabledWAL</a></span></code> </td> |
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| <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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| <th class="colLast" scope="col">Field and Description</th> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>(package 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/DisabledWALProvider.html#disabled">disabled</a></span></code> </td> |
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| <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/DisabledWALProvider.html#LOG">LOG</a></span></code> </td> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/DisabledWALProvider.html#DisabledWALProvider--">DisabledWALProvider</a></span>()</code> </td> |
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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> |
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| <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/DisabledWALProvider.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/DisabledWALProvider.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>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/DisabledWALProvider.html#getLogFileSize--">getLogFileSize</a></span>()</code> |
| <div class="block">Get size of the log files this provider is managing</div> |
| </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/DisabledWALProvider.html#getNumLogFiles--">getNumLogFiles</a></span>()</code> |
| <div class="block">Get number of the log files this provider is managing</div> |
| </td> |
| </tr> |
| <tr id="i4" 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/DisabledWALProvider.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="i5" 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><<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/DisabledWALProvider.html#getWALs--">getWALs</a></span>()</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/DisabledWALProvider.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="i7" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/wal/DisabledWALProvider.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="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
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| <h3>Methods 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.html#getWALFileLengthProvider--">getWALFileLengthProvider</a></code></li> |
| </ul> |
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| <h4>LOG</h4> |
| <pre>private static final org.slf4j.Logger <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/DisabledWALProvider.html#line.55">LOG</a></pre> |
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| <h4>disabled</h4> |
| <pre><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/DisabledWALProvider.html#line.57">disabled</a></pre> |
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| <h4>DisabledWALProvider</h4> |
| <pre><a href="../../../../../src-html/org/apache/hadoop/hbase/wal/DisabledWALProvider.html#line.53">DisabledWALProvider</a>()</pre> |
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| <a name="init-org.apache.hadoop.hbase.wal.WALFactory-org.apache.hadoop.conf.Configuration-java.lang.String-org.apache.hadoop.hbase.Abortable-"> |
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| <h4>init</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/DisabledWALProvider.html#line.60">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> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <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> |
| </dl> |
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| <h4>getWALs</h4> |
| <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/DisabledWALProvider.html#line.72">getWALs</a>()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/wal/WALProvider.html#getWALs--">getWALs</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="returnLabel">Returns:</span></dt> |
| <dd>the List of WALs that are used by this server</dd> |
| </dl> |
| </li> |
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| <h4>getWAL</h4> |
| <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/DisabledWALProvider.html#line.79">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> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <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> |
| </dl> |
| </li> |
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| <h4>close</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/DisabledWALProvider.html#line.84">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="shutdown--"> |
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| <h4>shutdown</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/DisabledWALProvider.html#line.89">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> |
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| </ul> |
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| <h4>getNumLogFiles</h4> |
| <pre>public long <a href="../../../../../src-html/org/apache/hadoop/hbase/wal/DisabledWALProvider.html#line.264">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/DisabledWALProvider.html#line.269">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/DisabledWALProvider.html#line.274">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> |
| </dl> |
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