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| <h2 title="Class TaskGroup" class="title">Class TaskGroup</h2> |
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| <pre>@InterfaceAudience.Private |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/monitoring/TaskGroup.html#line.39">TaskGroup</a> |
| extends <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html" title="class in org.apache.hadoop.hbase.monitoring">MonitoredTaskImpl</a></pre> |
| <div class="block">The <a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskGroup.html" title="class in org.apache.hadoop.hbase.monitoring"><code>TaskGroup</code></a> can be seen as a big <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring"><code>MonitoredTask</code></a>, which contains a list of sub |
| monitored tasks. The monitored tasks in the group are still be managed by the |
| <a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskMonitor.html" title="class in org.apache.hadoop.hbase.monitoring"><code>TaskMonitor</code></a>, but whether to clear/expire the monitored tasks in a task group is optional. |
| Since the monitored task already has journals, which mark the phases in a task, we still also |
| need a task group to monitor a big task/process because the journals in a task is serial but the |
| tasks in the task group can be parallel, then we have more flexible ability to monitor the |
| process. Grouping the tasks is not strictly necessary but it is cleaner for presentation to |
| operators. We might want to display the tasks in a group in a list view where each task can be |
| collapsed (probably by default) or expanded.</div> |
| </li> |
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| <code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.State.html" title="enum in org.apache.hadoop.hbase.monitoring">MonitoredTask.State</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.StatusJournalEntry.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask.StatusJournalEntry</a></code></li> |
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| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
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| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskGroup.html#delegate">delegate</a></span></code> |
| <div class="block">Used to track this task group in <a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskMonitor.html" title="class in org.apache.hadoop.hbase.monitoring"><code>TaskMonitor</code></a></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/monitoring/TaskGroup.html#ignoreSubTasksInTaskMonitor">ignoreSubTasksInTaskMonitor</a></span></code> |
| <div class="block">Whether to ignore to track(e.g.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskGroup.html#LOG">LOG</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/ConcurrentLinkedDeque.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentLinkedDeque</a><<a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskGroup.html#tasks">tasks</a></span></code> |
| <div class="block">Sub-tasks in the group</div> |
| </td> |
| </tr> |
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| <code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#state">state</a></code></li> |
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| <th class="colOne" scope="col">Constructor and Description</th> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskGroup.html#TaskGroup-boolean-java.lang.String-">TaskGroup</a></span>(boolean ignoreSubTasksInTaskMonitor, |
| <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> description)</code> </td> |
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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> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskGroup.html#abort-java.lang.String-">abort</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> msg)</code> </td> |
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| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskGroup.html#addTask-java.lang.String-">addTask</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> description)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskGroup.html#addTask-java.lang.String-boolean-">addTask</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> description, |
| boolean withCompleteLast)</code> |
| <div class="block">Add a new task to the group, and before that might complete the last task in the group</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/monitoring/TaskGroup.html#cleanup--">cleanup</a></span>()</code> |
| <div class="block">Explicitly mark this status as able to be cleaned up, even though it might not be complete.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><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/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskGroup.html#getTasks--">getTasks</a></span>()</code> </td> |
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| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskGroup.html#markComplete-java.lang.String-">markComplete</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> msg)</code> </td> |
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| <code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#clone--">clone</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#expireNow--">expireNow</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#getCompletionTimestamp--">getCompletionTimestamp</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#getDescription--">getDescription</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#getStartTime--">getStartTime</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#getState--">getState</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#getStateTime--">getStateTime</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#getStatus--">getStatus</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#getStatusJournal--">getStatusJournal</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#getStatusTime--">getStatusTime</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#getWarnTime--">getWarnTime</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#pause-java.lang.String-">pause</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#prettyPrintJournal--">prettyPrintJournal</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#resume-java.lang.String-">resume</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#setDescription-java.lang.String-">setDescription</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#setState-org.apache.hadoop.hbase.monitoring.MonitoredTask.State-">setState</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#setStatus-java.lang.String-">setStatus</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#setWarnTime-long-">setWarnTime</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#toJSON--">toJSON</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#toMap--">toMap</a>, <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#toString--">toString</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#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#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/monitoring/TaskGroup.html#line.40">LOG</a></pre> |
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| <h4>tasks</h4> |
| <pre>private final <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentLinkedDeque.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentLinkedDeque</a><<a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/monitoring/TaskGroup.html#line.43">tasks</a></pre> |
| <div class="block">Sub-tasks in the group</div> |
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| <pre>private boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/monitoring/TaskGroup.html#line.46">ignoreSubTasksInTaskMonitor</a></pre> |
| <div class="block">Whether to ignore to track(e.g. show/clear/expire) in the singleton <a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskMonitor.html" title="class in org.apache.hadoop.hbase.monitoring"><code>TaskMonitor</code></a></div> |
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| <h4>delegate</h4> |
| <pre>private final <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/monitoring/TaskGroup.html#line.49">delegate</a></pre> |
| <div class="block">Used to track this task group in <a href="../../../../../org/apache/hadoop/hbase/monitoring/TaskMonitor.html" title="class in org.apache.hadoop.hbase.monitoring"><code>TaskMonitor</code></a></div> |
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| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/monitoring/TaskGroup.html#line.51">TaskGroup</a>(boolean ignoreSubTasksInTaskMonitor, |
| <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> description)</pre> |
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| <h3>Method Detail</h3> |
| <a name="addTask-java.lang.String-"> |
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| <h4>addTask</h4> |
| <pre>public <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/monitoring/TaskGroup.html#line.57">addTask</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> description)</pre> |
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| <pre>public <a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/monitoring/TaskGroup.html#line.67">addTask</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> description, |
| boolean withCompleteLast)</pre> |
| <div class="block">Add a new task to the group, and before that might complete the last task in the group</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>description</code> - the description of the new task</dd> |
| <dd><code>withCompleteLast</code> - whether to complete the last task in the group</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the added new task</dd> |
| </dl> |
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| <h4>getTasks</h4> |
| <pre>public <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/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/monitoring/TaskGroup.html#line.85">getTasks</a>()</pre> |
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| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/monitoring/TaskGroup.html#line.90">abort</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> msg)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html#abort-java.lang.String-">abort</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#abort-java.lang.String-">abort</a></code> in class <code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html" title="class in org.apache.hadoop.hbase.monitoring">MonitoredTaskImpl</a></code></dd> |
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| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/monitoring/TaskGroup.html#line.102">markComplete</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> msg)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html#markComplete-java.lang.String-">markComplete</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#markComplete-java.lang.String-">markComplete</a></code> in class <code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html" title="class in org.apache.hadoop.hbase.monitoring">MonitoredTaskImpl</a></code></dd> |
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| <h4>cleanup</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/monitoring/TaskGroup.html#line.112">cleanup</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html#cleanup--">MonitoredTask</a></code></span></div> |
| <div class="block">Explicitly mark this status as able to be cleaned up, even though it might not be complete.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html#cleanup--">cleanup</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTask.html" title="interface in org.apache.hadoop.hbase.monitoring">MonitoredTask</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html#cleanup--">cleanup</a></code> in class <code><a href="../../../../../org/apache/hadoop/hbase/monitoring/MonitoredTaskImpl.html" title="class in org.apache.hadoop.hbase.monitoring">MonitoredTaskImpl</a></code></dd> |
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