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| <div class="subTitle">org.apache.hadoop.hbase.mob</div> |
| <h2 title="Class DefaultMobStoreFlusher" class="title">Class DefaultMobStoreFlusher</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
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| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFlusher.html" title="class in org.apache.hadoop.hbase.regionserver">org.apache.hadoop.hbase.regionserver.StoreFlusher</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/hadoop/hbase/regionserver/DefaultStoreFlusher.html" title="class in org.apache.hadoop.hbase.regionserver">org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.hadoop.hbase.mob.DefaultMobStoreFlusher</li> |
| </ul> |
| </li> |
| </ul> |
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| <div class="description"> |
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| <br> |
| <pre>@InterfaceAudience.Private |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#line.70">DefaultMobStoreFlusher</a> |
| extends <a href="../../../../../org/apache/hadoop/hbase/regionserver/DefaultStoreFlusher.html" title="class in org.apache.hadoop.hbase.regionserver">DefaultStoreFlusher</a></pre> |
| <div class="block">An implementation of the StoreFlusher. It extends the DefaultStoreFlusher. |
| If the store is not a mob store, the flusher flushes the MemStore the same with |
| DefaultStoreFlusher, |
| If the store is a mob store, the flusher flushes the MemStore into two places. |
| One is the store files of HBase, the other is the mob files. |
| <ol> |
| <li>Cells that are not PUT type or have the delete mark will be directly flushed to HBase.</li> |
| <li>If the size of a cell value is larger than a threshold, it'll be flushed |
| to a mob file, another cell with the path of this file will be flushed to HBase.</li> |
| <li>If the size of a cell value is smaller than or equal with a threshold, it'll be flushed to |
| HBase directly.</li> |
| </ol></div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
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| <li class="blockList"> |
| <!-- =========== FIELD SUMMARY =========== --> |
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| <h3>Field Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <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="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#flushLock">flushLock</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/mob/DefaultMobStoreFlusher.html#LOG">LOG</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#mobCellValueSizeThreshold">mobCellValueSizeThreshold</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ThreadLocal.html?is-external=true" title="class or interface in java.lang">ThreadLocal</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</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/mob/DefaultMobStoreFlusher.html#mobRefSet">mobRefSet</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/HMobStore.html" title="class in org.apache.hadoop.hbase.regionserver">HMobStore</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#mobStore">mobStore</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private org.apache.hadoop.fs.Path</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#targetPath">targetPath</a></span></code> </td> |
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| </a> |
| <h3>Fields inherited from class org.apache.hadoop.hbase.regionserver.<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFlusher.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFlusher</a></h3> |
| <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFlusher.html#conf">conf</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFlusher.html#store">store</a></code></li> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#DefaultMobStoreFlusher-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.regionserver.HStore-">DefaultMobStoreFlusher</a></span>(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/HStore.html" title="class in org.apache.hadoop.hbase.regionserver">HStore</a> store)</code> </td> |
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| <h3>Method Summary</h3> |
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| <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> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#finalizeWriter-org.apache.hadoop.hbase.regionserver.StoreFileWriter-long-org.apache.hadoop.hbase.monitoring.MonitoredTask-">finalizeWriter</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileWriter.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileWriter</a> writer, |
| long cacheFlushSeqNum, |
| <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a> status)</code> </td> |
| </tr> |
| <tr id="i1" 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><org.apache.hadoop.fs.Path></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#flushSnapshot-org.apache.hadoop.hbase.regionserver.MemStoreSnapshot-long-org.apache.hadoop.hbase.monitoring.MonitoredTask-org.apache.hadoop.hbase.regionserver.throttle.ThroughputController-org.apache.hadoop.hbase.regionserver.FlushLifeCycleTracker-">flushSnapshot</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreSnapshot.html" title="class in org.apache.hadoop.hbase.regionserver">MemStoreSnapshot</a> snapshot, |
| long cacheFlushId, |
| <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a> status, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/throttle/ThroughputController.html" title="interface in org.apache.hadoop.hbase.regionserver.throttle">ThroughputController</a> throughputController, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/FlushLifeCycleTracker.html" title="interface in org.apache.hadoop.hbase.regionserver">FlushLifeCycleTracker</a> tracker)</code> |
| <div class="block">Flushes the snapshot of the MemStore.</div> |
| </td> |
| </tr> |
| <tr id="i2" 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/mob/DefaultMobStoreFlusher.html#getStoreInfo--">getStoreInfo</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#performMobFlush-org.apache.hadoop.hbase.regionserver.MemStoreSnapshot-long-org.apache.hadoop.hbase.regionserver.InternalScanner-org.apache.hadoop.hbase.regionserver.StoreFileWriter-org.apache.hadoop.hbase.monitoring.MonitoredTask-org.apache.hadoop.hbase.regionserver.throttle.ThroughputController-">performMobFlush</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreSnapshot.html" title="class in org.apache.hadoop.hbase.regionserver">MemStoreSnapshot</a> snapshot, |
| long cacheFlushId, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a> scanner, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileWriter.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileWriter</a> writer, |
| <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a> status, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/throttle/ThroughputController.html" title="interface in org.apache.hadoop.hbase.regionserver.throttle">ThroughputController</a> throughputController)</code> |
| <div class="block">Flushes the cells in the mob store.</div> |
| </td> |
| </tr> |
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| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.hadoop.hbase.regionserver.<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFlusher.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFlusher</a></h3> |
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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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| <h4>LOG</h4> |
| <pre>private static final org.slf4j.Logger <a href="../../../../../src-html/org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#line.72">LOG</a></pre> |
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| <a name="flushLock"> |
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| <h4>flushLock</h4> |
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| <h3>Constructor Detail</h3> |
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| <h4>DefaultMobStoreFlusher</h4> |
| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#line.85">DefaultMobStoreFlusher</a>(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/HStore.html" title="class in org.apache.hadoop.hbase.regionserver">HStore</a> store) |
| 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> |
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| <h3>Method Detail</h3> |
| <a name="flushSnapshot-org.apache.hadoop.hbase.regionserver.MemStoreSnapshot-long-org.apache.hadoop.hbase.monitoring.MonitoredTask-org.apache.hadoop.hbase.regionserver.throttle.ThroughputController-org.apache.hadoop.hbase.regionserver.FlushLifeCycleTracker-"> |
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| <h4>flushSnapshot</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><org.apache.hadoop.fs.Path> <a href="../../../../../src-html/org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#line.114">flushSnapshot</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreSnapshot.html" title="class in org.apache.hadoop.hbase.regionserver">MemStoreSnapshot</a> snapshot, |
| long cacheFlushId, |
| <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a> status, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/throttle/ThroughputController.html" title="interface in org.apache.hadoop.hbase.regionserver.throttle">ThroughputController</a> throughputController, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/FlushLifeCycleTracker.html" title="interface in org.apache.hadoop.hbase.regionserver">FlushLifeCycleTracker</a> tracker) |
| 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">Flushes the snapshot of the MemStore. |
| If this store is not a mob store, flush the cells in the snapshot to store files of HBase. |
| If the store is a mob one, the flusher flushes the MemStore into two places. |
| One is the store files of HBase, the other is the mob files. |
| <ol> |
| <li>Cells that are not PUT type or have the delete mark will be directly flushed to |
| HBase.</li> |
| <li>If the size of a cell value is larger than a threshold, it'll be |
| flushed to a mob file, another cell with the path of this file will be flushed to HBase.</li> |
| <li>If the size of a cell value is smaller than or equal with a threshold, it'll be flushed to |
| HBase directly.</li> |
| </ol></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/DefaultStoreFlusher.html#flushSnapshot-org.apache.hadoop.hbase.regionserver.MemStoreSnapshot-long-org.apache.hadoop.hbase.monitoring.MonitoredTask-org.apache.hadoop.hbase.regionserver.throttle.ThroughputController-org.apache.hadoop.hbase.regionserver.FlushLifeCycleTracker-">flushSnapshot</a></code> in class <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/DefaultStoreFlusher.html" title="class in org.apache.hadoop.hbase.regionserver">DefaultStoreFlusher</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>snapshot</code> - Memstore snapshot.</dd> |
| <dd><code>cacheFlushId</code> - Log cache flush sequence number.</dd> |
| <dd><code>status</code> - Task that represents the flush operation and may be updated with status.</dd> |
| <dd><code>throughputController</code> - A controller to avoid flush too fast</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>List of files written. Can be empty; must not 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> |
| </li> |
| </ul> |
| <a name="performMobFlush-org.apache.hadoop.hbase.regionserver.MemStoreSnapshot-long-org.apache.hadoop.hbase.regionserver.InternalScanner-org.apache.hadoop.hbase.regionserver.StoreFileWriter-org.apache.hadoop.hbase.monitoring.MonitoredTask-org.apache.hadoop.hbase.regionserver.throttle.ThroughputController-"> |
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| <h4>performMobFlush</h4> |
| <pre>protected void <a href="../../../../../src-html/org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#line.178">performMobFlush</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreSnapshot.html" title="class in org.apache.hadoop.hbase.regionserver">MemStoreSnapshot</a> snapshot, |
| long cacheFlushId, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a> scanner, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileWriter.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileWriter</a> writer, |
| <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a> status, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/throttle/ThroughputController.html" title="interface in org.apache.hadoop.hbase.regionserver.throttle">ThroughputController</a> throughputController) |
| 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">Flushes the cells in the mob store. |
| <ol>In the mob store, the cells with PUT type might have or have no mob tags. |
| <li>If a cell does not have a mob tag, flushing the cell to different files depends |
| on the value length. If the length is larger than a threshold, it's flushed to a |
| mob file and the mob file is flushed to a store file in HBase. Otherwise, directly |
| flush the cell to a store file in HBase.</li> |
| <li>If a cell have a mob tag, its value is a mob file name, directly flush it |
| to a store file in HBase.</li> |
| </ol></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>snapshot</code> - Memstore snapshot.</dd> |
| <dd><code>cacheFlushId</code> - Log cache flush sequence number.</dd> |
| <dd><code>scanner</code> - The scanner of memstore snapshot.</dd> |
| <dd><code>writer</code> - The store file writer.</dd> |
| <dd><code>status</code> - Task that represents the flush operation and may be updated with status.</dd> |
| <dd><code>throughputController</code> - A controller to avoid flush too fast.</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="finalizeWriter-org.apache.hadoop.hbase.regionserver.StoreFileWriter-long-org.apache.hadoop.hbase.monitoring.MonitoredTask-"> |
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| <h4>finalizeWriter</h4> |
| <pre>protected void <a href="../../../../../src-html/org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#line.278">finalizeWriter</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileWriter.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileWriter</a> writer, |
| long cacheFlushSeqNum, |
| <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a> status) |
| 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">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFlusher.html#finalizeWriter-org.apache.hadoop.hbase.regionserver.StoreFileWriter-long-org.apache.hadoop.hbase.monitoring.MonitoredTask-">finalizeWriter</a></code> in class <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFlusher.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFlusher</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> |
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| <h4>getStoreInfo</h4> |
| <pre>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> <a href="../../../../../src-html/org/apache/hadoop/hbase/mob/DefaultMobStoreFlusher.html#line.291">getStoreInfo</a>()</pre> |
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