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| <div class="subTitle">org.apache.hadoop.hbase</div> |
| <h2 title="Class ScheduledChore" class="title">Class ScheduledChore</h2> |
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| <li>org.apache.hadoop.hbase.ScheduledChore</li> |
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| <dt>Direct Known Subclasses:</dt> |
| <dd><a href="../../../../org/apache/hadoop/hbase/master/balancer/BalancerChore.html" title="class in org.apache.hadoop.hbase.master.balancer">BalancerChore</a>, <a href="../../../../org/apache/hadoop/hbase/master/janitor/CatalogJanitor.html" title="class in org.apache.hadoop.hbase.master.janitor">CatalogJanitor</a>, <a href="../../../../org/apache/hadoop/hbase/master/cleaner/CleanerChore.html" title="class in org.apache.hadoop.hbase.master.cleaner">CleanerChore</a>, <a href="../../../../org/apache/hadoop/hbase/master/balancer/ClusterStatusChore.html" title="class in org.apache.hadoop.hbase.master.balancer">ClusterStatusChore</a>, <a href="../../../../org/apache/hadoop/hbase/master/ClusterStatusPublisher.html" title="class in org.apache.hadoop.hbase.master">ClusterStatusPublisher</a>, <a href="../../../../org/apache/hadoop/hbase/regionserver/CompactedHFilesDischarger.html" title="class in org.apache.hadoop.hbase.regionserver">CompactedHFilesDischarger</a>, <a href="../../../../org/apache/hadoop/hbase/ExecutorStatusChore.html" title="class in org.apache.hadoop.hbase">ExecutorStatusChore</a>, <a href="../../../../org/apache/hadoop/hbase/quotas/FileSystemUtilizationChore.html" title="class in org.apache.hadoop.hbase.quotas">FileSystemUtilizationChore</a>, <a href="../../../../org/apache/hadoop/hbase/master/HbckChore.html" title="class in org.apache.hadoop.hbase.master">HbckChore</a>, <a href="../../../../org/apache/hadoop/hbase/HealthCheckChore.html" title="class in org.apache.hadoop.hbase">HealthCheckChore</a>, <a href="../../../../org/apache/hadoop/hbase/regionserver/HeapMemoryManager.HeapMemoryTunerChore.html" title="class in org.apache.hadoop.hbase.regionserver">HeapMemoryManager.HeapMemoryTunerChore</a>, <a href="../../../../org/apache/hadoop/hbase/regionserver/HRegionServer.CompactionChecker.html" title="class in org.apache.hadoop.hbase.regionserver">HRegionServer.CompactionChecker</a>, <a 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href="../../../../org/apache/hadoop/hbase/quotas/RegionSizeReportingChore.html" title="class in org.apache.hadoop.hbase.quotas">RegionSizeReportingChore</a>, <a href="../../../../org/apache/hadoop/hbase/master/RegionsRecoveryChore.html" title="class in org.apache.hadoop.hbase.master">RegionsRecoveryChore</a>, <a href="../../../../org/apache/hadoop/hbase/replication/regionserver/Replication.ReplicationStatisticsChore.html" title="class in org.apache.hadoop.hbase.replication.regionserver">Replication.ReplicationStatisticsChore</a>, <a href="../../../../org/apache/hadoop/hbase/master/cleaner/ReplicationBarrierCleaner.html" title="class in org.apache.hadoop.hbase.master.cleaner">ReplicationBarrierCleaner</a>, <a href="../../../../org/apache/hadoop/hbase/replication/ReplicationSinkServiceImpl.ReplicationStatisticsChore.html" title="class in org.apache.hadoop.hbase.replication">ReplicationSinkServiceImpl.ReplicationStatisticsChore</a>, <a href="../../../../org/apache/hadoop/hbase/master/ServerManager.FlushedSequenceIdFlusher.html" title="class in org.apache.hadoop.hbase.master">ServerManager.FlushedSequenceIdFlusher</a>, <a href="../../../../org/apache/hadoop/hbase/namequeues/SlowLogTableOpsChore.html" title="class in org.apache.hadoop.hbase.namequeues">SlowLogTableOpsChore</a>, <a href="../../../../org/apache/hadoop/hbase/master/cleaner/SnapshotCleanerChore.html" title="class in org.apache.hadoop.hbase.master.cleaner">SnapshotCleanerChore</a>, <a href="../../../../org/apache/hadoop/hbase/quotas/SnapshotQuotaObserverChore.html" title="class in org.apache.hadoop.hbase.quotas">SnapshotQuotaObserverChore</a>, <a href="../../../../org/apache/hadoop/hbase/quotas/SpaceQuotaRefresherChore.html" title="class in org.apache.hadoop.hbase.quotas">SpaceQuotaRefresherChore</a>, <a href="../../../../org/apache/hadoop/hbase/master/SplitLogManager.TimeoutMonitor.html" title="class in org.apache.hadoop.hbase.master">SplitLogManager.TimeoutMonitor</a>, <a href="../../../../org/apache/hadoop/hbase/regionserver/StorefileRefresherChore.html" title="class in org.apache.hadoop.hbase.regionserver">StorefileRefresherChore</a></dd> |
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| <hr> |
| <br> |
| <pre>@InterfaceAudience.Public |
| public abstract class <a href="../../../../src-html/org/apache/hadoop/hbase/ScheduledChore.html#line.43">ScheduledChore</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="https://docs.oracle.com/javase/8/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</a></pre> |
| <div class="block">ScheduledChore is a task performed on a period in hbase. ScheduledChores become active once |
| scheduled with a <a href="../../../../org/apache/hadoop/hbase/ChoreService.html" title="class in org.apache.hadoop.hbase"><code>ChoreService</code></a> via <a href="../../../../org/apache/hadoop/hbase/ChoreService.html#scheduleChore-org.apache.hadoop.hbase.ScheduledChore-"><code>ChoreService.scheduleChore(ScheduledChore)</code></a>. The |
| chore is run in a <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ScheduledThreadPoolExecutor.html?is-external=true" title="class or interface in java.util.concurrent"><code>ScheduledThreadPoolExecutor</code></a> and competes with other ScheduledChores for |
| access to the threads in the core thread pool. If an unhandled exception occurs, the chore |
| cancellation is logged. Implementers should consider whether or not the Chore will be able to |
| execute within the defined period. It is bad practice to define a ScheduledChore whose execution |
| time exceeds its period since it will try to hog one of the threads in the <a href="../../../../org/apache/hadoop/hbase/ChoreService.html" title="class in org.apache.hadoop.hbase"><code>ChoreService</code></a>'s |
| thread pool. |
| <p> |
| Don't subclass ScheduledChore if the task relies on being woken up for something to do, such as |
| an entry being added to a queue, etc.</div> |
| </li> |
| </ul> |
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| <h3>Nested Class Summary</h3> |
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| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
| <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 interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.ChoreServicer.html" title="interface in org.apache.hadoop.hbase">ScheduledChore.ChoreServicer</a></span></code> </td> |
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| <!-- =========== 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="../../../../org/apache/hadoop/hbase/ScheduledChore.ChoreServicer.html" title="interface in org.apache.hadoop.hbase">ScheduledChore.ChoreServicer</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#choreServicer">choreServicer</a></span></code> |
| <div class="block">Interface to the ChoreService that this ScheduledChore is scheduled with.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#DEFAULT_INITIAL_DELAY">DEFAULT_INITIAL_DELAY</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/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#DEFAULT_TIME_UNIT">DEFAULT_TIME_UNIT</a></span></code> |
| <div class="block">Default values for scheduling parameters should they be excluded during construction</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#initialChoreComplete">initialChoreComplete</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/ScheduledChore.html#initialDelay">initialDelay</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/ScheduledChore.html#LOG">LOG</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/ScheduledChore.html#name">name</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#period">period</a></span></code> |
| <div class="block">Scheduling parameters.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../org/apache/hadoop/hbase/Stoppable.html" title="interface in org.apache.hadoop.hbase">Stoppable</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#stopper">stopper</a></span></code> |
| <div class="block">A means by which a ScheduledChore can be stopped.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#timeOfLastRun">timeOfLastRun</a></span></code> |
| <div class="block">Variables that encapsulate the meaningful state information</div> |
| </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/ScheduledChore.html#timeOfThisRun">timeOfThisRun</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/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#timeUnit">timeUnit</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| <li class="blockList"><a name="constructor.summary"> |
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| <h3>Constructor Summary</h3> |
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| <th class="colFirst" scope="col">Modifier</th> |
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| <td class="colFirst"><code>protected </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#ScheduledChore--">ScheduledChore</a></span>()</code> |
| <div class="block">This constructor is for test only.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code> </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#ScheduledChore-java.lang.String-org.apache.hadoop.hbase.Stoppable-int-">ScheduledChore</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> name, |
| <a href="../../../../org/apache/hadoop/hbase/Stoppable.html" title="interface in org.apache.hadoop.hbase">Stoppable</a> stopper, |
| int period)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code> </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#ScheduledChore-java.lang.String-org.apache.hadoop.hbase.Stoppable-int-long-">ScheduledChore</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> name, |
| <a href="../../../../org/apache/hadoop/hbase/Stoppable.html" title="interface in org.apache.hadoop.hbase">Stoppable</a> stopper, |
| int period, |
| long initialDelay)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code> </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#ScheduledChore-java.lang.String-org.apache.hadoop.hbase.Stoppable-int-long-java.util.concurrent.TimeUnit-">ScheduledChore</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> name, |
| <a href="../../../../org/apache/hadoop/hbase/Stoppable.html" title="interface in org.apache.hadoop.hbase">Stoppable</a> stopper, |
| int period, |
| long initialDelay, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</a> unit)</code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
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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="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract 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/ScheduledChore.html#cancel--">cancel</a></span>()</code> </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/ScheduledChore.html#cancel-boolean-">cancel</a></span>(boolean mayInterruptIfRunning)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>protected abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#chore--">chore</a></span>()</code> |
| <div class="block">The task to execute on each scheduled execution of the Chore</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#choreForTesting--">choreForTesting</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#cleanup--">cleanup</a></span>()</code> |
| <div class="block">Override to run cleanup tasks when the Chore encounters an error and must stop running</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>(package private) <a href="../../../../org/apache/hadoop/hbase/ScheduledChore.ChoreServicer.html" title="interface in org.apache.hadoop.hbase">ScheduledChore.ChoreServicer</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#getChoreServicer--">getChoreServicer</a></span>()</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#getInitialDelay--">getInitialDelay</a></span>()</code> </td> |
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| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>private double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#getMaximumAllowedTimeBetweenRuns--">getMaximumAllowedTimeBetweenRuns</a></span>()</code> </td> |
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| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><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/ScheduledChore.html#getName--">getName</a></span>()</code> </td> |
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| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#getPeriod--">getPeriod</a></span>()</code> </td> |
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| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/hadoop/hbase/Stoppable.html" title="interface in org.apache.hadoop.hbase">Stoppable</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#getStopper--">getStopper</a></span>()</code> </td> |
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| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>(package private) long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#getTimeBetweenRuns--">getTimeBetweenRuns</a></span>()</code> </td> |
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| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>(package private) long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#getTimeOfLastRun--">getTimeOfLastRun</a></span>()</code> </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>(package private) long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#getTimeOfThisRun--">getTimeOfThisRun</a></span>()</code> </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#getTimeUnit--">getTimeUnit</a></span>()</code> </td> |
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| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#initialChore--">initialChore</a></span>()</code> |
| <div class="block">Override to run a task before we start looping.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#isInitialChoreComplete--">isInitialChoreComplete</a></span>()</code> </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#isScheduled--">isScheduled</a></span>()</code> </td> |
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| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>private boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#isValidTime-long-">isValidTime</a></span>(long time)</code> </td> |
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| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code>private boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#missedStartTime--">missedStartTime</a></span>()</code> </td> |
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| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#onChoreMissedStartTime--">onChoreMissedStartTime</a></span>()</code> |
| <div class="block">Notify the ChoreService that this chore has missed its start time.</div> |
| </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#run--">run</a></span>()</code> </td> |
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| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code>(package private) void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#setChoreServicer-org.apache.hadoop.hbase.ScheduledChore.ChoreServicer-">setChoreServicer</a></span>(<a href="../../../../org/apache/hadoop/hbase/ScheduledChore.ChoreServicer.html" title="interface in org.apache.hadoop.hbase">ScheduledChore.ChoreServicer</a> service)</code> </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code><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/ScheduledChore.html#toString--">toString</a></span>()</code> |
| <div class="block">A summation of this chore in human readable format.</div> |
| </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#triggerNow--">triggerNow</a></span>()</code> </td> |
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| <tr id="i25" class="rowColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/ScheduledChore.html#updateTimeTrackingBeforeRun--">updateTimeTrackingBeforeRun</a></span>()</code> |
| <div class="block">Update our time tracking members.</div> |
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| <h4>name</h4> |
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| <div class="block">Default values for scheduling parameters should they be excluded during construction</div> |
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| <h4>choreServicer</h4> |
| <pre>private <a href="../../../../org/apache/hadoop/hbase/ScheduledChore.ChoreServicer.html" title="interface in org.apache.hadoop.hbase">ScheduledChore.ChoreServicer</a> <a href="../../../../src-html/org/apache/hadoop/hbase/ScheduledChore.html#line.65">choreServicer</a></pre> |
| <div class="block">Interface to the ChoreService that this ScheduledChore is scheduled with. null if the chore is |
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| <div class="block">Variables that encapsulate the meaningful state information</div> |
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| <div class="block">A means by which a ScheduledChore can be stopped. Once a chore recognizes that it has been |
| stopped, it will cancel itself. This is particularly useful in the case where a single stopper |
| instance is given to multiple chores. In such a case, a single <a href="../../../../org/apache/hadoop/hbase/Stoppable.html#stop-java.lang.String-"><code>Stoppable.stop(String)</code></a> |
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| <h4>ScheduledChore</h4> |
| <pre>@InterfaceAudience.Private |
| protected <a href="../../../../src-html/org/apache/hadoop/hbase/ScheduledChore.html#line.120">ScheduledChore</a>()</pre> |
| <div class="block">This constructor is for test only. It allows us to create an object and to call chore() on it.</div> |
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| <h4>ScheduledChore</h4> |
| <pre>public <a href="../../../../src-html/org/apache/hadoop/hbase/ScheduledChore.html#line.129">ScheduledChore</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> name, |
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| int period)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - Name assigned to Chore. Useful for identification amongst chores of the same type</dd> |
| <dd><code>stopper</code> - When <a href="../../../../org/apache/hadoop/hbase/Stoppable.html#isStopped--"><code>Stoppable.isStopped()</code></a> is true, this chore will cancel and cleanup</dd> |
| <dd><code>period</code> - Period in millis with which this Chore repeats execution when scheduled.</dd> |
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| <a name="ScheduledChore-java.lang.String-org.apache.hadoop.hbase.Stoppable-int-long-"> |
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| <h4>ScheduledChore</h4> |
| <pre>public <a href="../../../../src-html/org/apache/hadoop/hbase/ScheduledChore.html#line.141">ScheduledChore</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> name, |
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| int period, |
| long initialDelay)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - Name assigned to Chore. Useful for identification amongst chores of the same type</dd> |
| <dd><code>stopper</code> - When <a href="../../../../org/apache/hadoop/hbase/Stoppable.html#isStopped--"><code>Stoppable.isStopped()</code></a> is true, this chore will cancel and cleanup</dd> |
| <dd><code>period</code> - Period in millis with which this Chore repeats execution when scheduled.</dd> |
| <dd><code>initialDelay</code> - Delay before this Chore begins to execute once it has been scheduled. A |
| value of 0 means the chore will begin to execute immediately. Negative delays are |
| invalid and will be corrected to a value of 0.</dd> |
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| <h4>ScheduledChore</h4> |
| <pre>public <a href="../../../../src-html/org/apache/hadoop/hbase/ScheduledChore.html#line.155">ScheduledChore</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> name, |
| <a href="../../../../org/apache/hadoop/hbase/Stoppable.html" title="interface in org.apache.hadoop.hbase">Stoppable</a> stopper, |
| int period, |
| long initialDelay, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</a> unit)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - Name assigned to Chore. Useful for identification amongst chores of the same type</dd> |
| <dd><code>stopper</code> - When <a href="../../../../org/apache/hadoop/hbase/Stoppable.html#isStopped--"><code>Stoppable.isStopped()</code></a> is true, this chore will cancel and cleanup</dd> |
| <dd><code>period</code> - Period in Timeunit unit with which this Chore repeats execution when scheduled.</dd> |
| <dd><code>initialDelay</code> - Delay in Timeunit unit before this Chore begins to execute once it has been |
| scheduled. A value of 0 means the chore will begin to execute immediately. Negative |
| delays are invalid and will be corrected to a value of 0.</dd> |
| <dd><code>unit</code> - The unit that is used to measure period and initialDelay</dd> |
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| <pre>public void <a href="../../../../src-html/org/apache/hadoop/hbase/ScheduledChore.html#line.168">run</a>()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
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| <pre>private void <a href="../../../../src-html/org/apache/hadoop/hbase/ScheduledChore.html#line.209">updateTimeTrackingBeforeRun</a>()</pre> |
| <div class="block">Update our time tracking members. Called at the start of an execution of this chore's run() |
| method so that a correct decision can be made as to whether or not we missed the start time</div> |
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| <pre>private void <a href="../../../../src-html/org/apache/hadoop/hbase/ScheduledChore.html#line.219">onChoreMissedStartTime</a>()</pre> |
| <div class="block">Notify the ChoreService that this chore has missed its start time. Allows the ChoreService to |
| make the decision as to whether or not it would be worthwhile to increase the number of core |
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| <pre>long <a href="../../../../src-html/org/apache/hadoop/hbase/ScheduledChore.html#line.227">getTimeBetweenRuns</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>How long in millis has it been since this chore last run. Useful for checking if the |
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| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if time is earlier or equal to current milli time</dd> |
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| <dd>false when the Chore is not currently scheduled with a ChoreService</dd> |
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| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
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| <div class="block">Override to run a task before we start looping.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if initial chore was successful</dd> |
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| <div class="block">A summation of this chore in human readable format. Downstream users should not presume |
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