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| <div class="subTitle">org.apache.hadoop.hbase.regionserver.compactions</div> |
| <h2 title="Class DateTieredCompactionPolicy" class="title">Class DateTieredCompactionPolicy</h2> |
| </div> |
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| <ul class="inheritance"> |
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| <li><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionPolicy.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">org.apache.hadoop.hbase.regionserver.compactions.CompactionPolicy</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/SortedCompactionPolicy.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">org.apache.hadoop.hbase.regionserver.compactions.SortedCompactionPolicy</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.hadoop.hbase.regionserver.compactions.DateTieredCompactionPolicy</li> |
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| <pre>@InterfaceAudience.LimitedPrivate(value="Configuration") |
| public class <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.66">DateTieredCompactionPolicy</a> |
| extends <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/SortedCompactionPolicy.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">SortedCompactionPolicy</a></pre> |
| <div class="block">HBASE-15181 This is a simple implementation of date-based tiered compaction similar to |
| Cassandra's for the following benefits: |
| <ol> |
| <li>Improve date-range-based scan by structuring store files in date-based tiered layout.</li> |
| <li>Reduce compaction overhead.</li> |
| <li>Improve TTL efficiency.</li> |
| </ol> |
| Perfect fit for the use cases that: |
| <ol> |
| <li>has mostly date-based data write and scan and a focus on the most recent data.</li> |
| </ol> |
| Out-of-order writes are handled gracefully. Time range overlapping among store files is tolerated |
| and the performance impact is minimized. Configuration can be set at hbase-site or overridden at |
| per-table or per-column-family level by hbase shell. Design spec is at |
| https://docs.google.com/document/d/1_AmlNb2N8Us1xICsTeGDLKIqL6T-oHoRLZ323MG_uy8/</div> |
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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/regionserver/compactions/RatioBasedCompactionPolicy.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">RatioBasedCompactionPolicy</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#compactionPolicyPerWindow">compactionPolicyPerWindow</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/regionserver/compactions/DateTieredCompactionPolicy.html#LOG">LOG</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionWindowFactory.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionWindowFactory</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#windowFactory">windowFactory</a></span></code> </td> |
| </tr> |
| </table> |
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| <li class="blockList"><a name="fields.inherited.from.class.org.apache.hadoop.hbase.regionserver.compactions.CompactionPolicy"> |
| <!-- --> |
| </a> |
| <h3>Fields inherited from class org.apache.hadoop.hbase.regionserver.compactions.<a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionPolicy.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionPolicy</a></h3> |
| <code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionPolicy.html#comConf">comConf</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionPolicy.html#storeConfigInfo">storeConfigInfo</a></code></li> |
| </ul> |
| </li> |
| </ul> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#DateTieredCompactionPolicy-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.regionserver.StoreConfigInformation-">DateTieredCompactionPolicy</a></span>(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/StoreConfigInformation.html" title="interface in org.apache.hadoop.hbase.regionserver">StoreConfigInformation</a> storeConfigInfo)</code> </td> |
| </tr> |
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| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></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>protected <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionRequestImpl.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionRequestImpl</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#createCompactionRequest-java.util.ArrayList-boolean-boolean-boolean-">createCompactionRequest</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> candidateSelection, |
| boolean tryingMajor, |
| boolean mayUseOffPeak, |
| boolean mayBeStuck)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionRequest.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">DateTieredCompactionRequest</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#generateCompactionRequest-java.util.ArrayList-org.apache.hadoop.hbase.regionserver.compactions.CompactionWindow-boolean-boolean-int-long-">generateCompactionRequest</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> storeFiles, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionWindow.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionWindow</a> window, |
| boolean mayUseOffPeak, |
| boolean mayBeStuck, |
| int minThreshold, |
| long now)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</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/regionserver/compactions/DateTieredCompactionPolicy.html#getBoundariesStoragePolicyForMajor-java.util.List-long-">getBoundariesStoragePolicyForMajor</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> boundaries, |
| long now)</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</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/regionserver/compactions/DateTieredCompactionPolicy.html#getBoundariesStoragePolicyForMinor-boolean-org.apache.hadoop.hbase.regionserver.compactions.CompactionWindow-long-">getBoundariesStoragePolicyForMinor</a></span>(boolean singleOutput, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionWindow.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionWindow</a> window, |
| long now)</code> </td> |
| </tr> |
| <tr id="i4" 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="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#getCompactBoundariesForMajor-java.util.Collection-long-">getCompactBoundariesForMajor</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> filesToCompact, |
| long now)</code> |
| <div class="block">Return a list of boundaries for multiple compaction output in ascending order.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>private static <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="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#getCompactionBoundariesForMinor-org.apache.hadoop.hbase.regionserver.compactions.CompactionWindow-boolean-">getCompactionBoundariesForMinor</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionWindow.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionWindow</a> window, |
| boolean singleOutput)</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionWindow.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionWindow</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#getIncomingWindow-long-">getIncomingWindow</a></span>(long now)</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>private static long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#getOldestToCompact-long-long-">getOldestToCompact</a></span>(long maxAgeMillis, |
| long now)</code> </td> |
| </tr> |
| <tr id="i8" 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/regionserver/compactions/DateTieredCompactionPolicy.html#getWindowStoragePolicy-long-long-">getWindowStoragePolicy</a></span>(long now, |
| long windowStartMillis)</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#needsCompaction-java.util.Collection-java.util.List-">needsCompaction</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> storeFiles, |
| <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/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> filesCompacting)</code> |
| <div class="block">Heuristics for guessing whether we need minor compaction.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionRequestImpl.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionRequestImpl</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#selectMajorCompaction-java.util.ArrayList-">selectMajorCompaction</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> candidateSelection)</code> </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionRequestImpl.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionRequestImpl</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#selectMinorCompaction-java.util.ArrayList-boolean-boolean-">selectMinorCompaction</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> candidateSelection, |
| boolean mayUseOffPeak, |
| boolean mayBeStuck)</code> |
| <div class="block">We receive store files sorted in ascending order by seqId then scan the list of files.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#shouldPerformMajorCompaction-java.util.Collection-">shouldPerformMajorCompaction</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> filesToCompact)</code> </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.org.apache.hadoop.hbase.regionserver.compactions.SortedCompactionPolicy"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.hadoop.hbase.regionserver.compactions.<a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/SortedCompactionPolicy.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">SortedCompactionPolicy</a></h3> |
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| <h3>Methods inherited from class org.apache.hadoop.hbase.regionserver.compactions.<a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionPolicy.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionPolicy</a></h3> |
| <code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionPolicy.html#getConf--">getConf</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionPolicy.html#setConf-org.apache.hadoop.conf.Configuration-">setConf</a></code></li> |
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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/regionserver/compactions/DateTieredCompactionPolicy.html#line.68">LOG</a></pre> |
| </li> |
| </ul> |
| <a name="compactionPolicyPerWindow"> |
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| <h4>compactionPolicyPerWindow</h4> |
| <pre>private final <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/RatioBasedCompactionPolicy.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">RatioBasedCompactionPolicy</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.70">compactionPolicyPerWindow</a></pre> |
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| <pre>private final <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionWindowFactory.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionWindowFactory</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.72">windowFactory</a></pre> |
| </li> |
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| <h3>Constructor Detail</h3> |
| <a name="DateTieredCompactionPolicy-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.regionserver.StoreConfigInformation-"> |
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| <h4>DateTieredCompactionPolicy</h4> |
| <pre>public <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.74">DateTieredCompactionPolicy</a>(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/StoreConfigInformation.html" title="interface in org.apache.hadoop.hbase.regionserver">StoreConfigInformation</a> storeConfigInfo) |
| 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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| <h3>Method Detail</h3> |
| <a name="needsCompaction-java.util.Collection-java.util.List-"> |
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| <h4>needsCompaction</h4> |
| <pre>@InterfaceAudience.Private |
| public boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.101">needsCompaction</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> storeFiles, |
| <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/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> filesCompacting)</pre> |
| <div class="block">Heuristics for guessing whether we need minor compaction.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/SortedCompactionPolicy.html#needsCompaction-java.util.Collection-java.util.List-">needsCompaction</a></code> in class <code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/SortedCompactionPolicy.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">SortedCompactionPolicy</a></code></dd> |
| </dl> |
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| </ul> |
| <a name="shouldPerformMajorCompaction-java.util.Collection-"> |
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| <h4>shouldPerformMajorCompaction</h4> |
| <pre>public boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.113">shouldPerformMajorCompaction</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> filesToCompact) |
| 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/regionserver/compactions/SortedCompactionPolicy.html#shouldPerformMajorCompaction-java.util.Collection-">shouldPerformMajorCompaction</a></code> in class <code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/SortedCompactionPolicy.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">SortedCompactionPolicy</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>filesToCompact</code> - Files to compact. Can be null.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>True if we should run a major compaction.</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="createCompactionRequest-java.util.ArrayList-boolean-boolean-boolean-"> |
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| <h4>createCompactionRequest</h4> |
| <pre>protected <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionRequestImpl.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionRequestImpl</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.190">createCompactionRequest</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> candidateSelection, |
| boolean tryingMajor, |
| boolean mayUseOffPeak, |
| boolean mayBeStuck) |
| 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/regionserver/compactions/SortedCompactionPolicy.html#createCompactionRequest-java.util.ArrayList-boolean-boolean-boolean-">createCompactionRequest</a></code> in class <code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/SortedCompactionPolicy.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">SortedCompactionPolicy</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="selectMajorCompaction-java.util.ArrayList-"> |
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| <h4>selectMajorCompaction</h4> |
| <pre>public <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionRequestImpl.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionRequestImpl</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.200">selectMajorCompaction</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> candidateSelection)</pre> |
| </li> |
| </ul> |
| <a name="selectMinorCompaction-java.util.ArrayList-boolean-boolean-"> |
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| <ul class="blockList"> |
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| <h4>selectMinorCompaction</h4> |
| <pre>public <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionRequestImpl.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionRequestImpl</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.216">selectMinorCompaction</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> candidateSelection, |
| boolean mayUseOffPeak, |
| boolean mayBeStuck) |
| 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">We receive store files sorted in ascending order by seqId then scan the list of files. If the |
| current file has a maxTimestamp older than last known maximum, treat this file as it carries |
| the last known maximum. This way both seqId and timestamp are in the same order. If files carry |
| the same maxTimestamps, they are ordered by seqId. We then reverse the list so they are ordered |
| by seqId and maxTimestamp in descending order and build the time windows. All the out-of-order |
| data into the same compaction windows, guaranteeing contiguous compaction based on sequence id.</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> |
| </dl> |
| </li> |
| </ul> |
| <a name="generateCompactionRequest-java.util.ArrayList-org.apache.hadoop.hbase.regionserver.compactions.CompactionWindow-boolean-boolean-int-long-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>generateCompactionRequest</h4> |
| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionRequest.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">DateTieredCompactionRequest</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.270">generateCompactionRequest</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> storeFiles, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionWindow.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionWindow</a> window, |
| boolean mayUseOffPeak, |
| boolean mayBeStuck, |
| int minThreshold, |
| long now) |
| 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> |
| </dl> |
| </li> |
| </ul> |
| <a name="getCompactBoundariesForMajor-java.util.Collection-long-"> |
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| <h4>getCompactBoundariesForMajor</h4> |
| <pre>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="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.300">getCompactBoundariesForMajor</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> filesToCompact, |
| long now)</pre> |
| <div class="block">Return a list of boundaries for multiple compaction output in ascending order.</div> |
| </li> |
| </ul> |
| <a name="getCompactionBoundariesForMinor-org.apache.hadoop.hbase.regionserver.compactions.CompactionWindow-boolean-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getCompactionBoundariesForMinor</h4> |
| <pre>private static <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="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.320">getCompactionBoundariesForMinor</a>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionWindow.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionWindow</a> window, |
| boolean singleOutput)</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a list of boundaries for multiple compaction output from minTimestamp to maxTimestamp.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getIncomingWindow-long-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getIncomingWindow</h4> |
| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionWindow.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionWindow</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.330">getIncomingWindow</a>(long now)</pre> |
| </li> |
| </ul> |
| <a name="getOldestToCompact-long-long-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getOldestToCompact</h4> |
| <pre>private static long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.334">getOldestToCompact</a>(long maxAgeMillis, |
| long now)</pre> |
| </li> |
| </ul> |
| <a name="getBoundariesStoragePolicyForMinor-boolean-org.apache.hadoop.hbase.regionserver.compactions.CompactionWindow-long-"> |
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| <h4>getBoundariesStoragePolicyForMinor</h4> |
| <pre>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</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="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.344">getBoundariesStoragePolicyForMinor</a>(boolean singleOutput, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionWindow.html" title="class in org.apache.hadoop.hbase.regionserver.compactions">CompactionWindow</a> window, |
| long now)</pre> |
| </li> |
| </ul> |
| <a name="getBoundariesStoragePolicyForMajor-java.util.List-long-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>getBoundariesStoragePolicyForMajor</h4> |
| <pre>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</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="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.html#line.359">getBoundariesStoragePolicyForMajor</a>(<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="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> boundaries, |
| long now)</pre> |
| </li> |
| </ul> |
| <a name="getWindowStoragePolicy-long-long-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>getWindowStoragePolicy</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/regionserver/compactions/DateTieredCompactionPolicy.html#line.370">getWindowStoragePolicy</a>(long now, |
| long windowStartMillis)</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| </div> |
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