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| <div class="subTitle">org.apache.hadoop.hbase.procedure</div> |
| <h2 title="Class MasterProcedureManager" class="title">Class MasterProcedureManager</h2> |
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| <ul class="inheritance"> |
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| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure">org.apache.hadoop.hbase.procedure.ProcedureManager</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.hadoop.hbase.procedure.MasterProcedureManager</li> |
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| <div class="description"> |
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| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/Stoppable.html" title="interface in org.apache.hadoop.hbase">Stoppable</a></dd> |
| </dl> |
| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/backup/master/LogRollMasterProcedureManager.html" title="class in org.apache.hadoop.hbase.backup.master">LogRollMasterProcedureManager</a>, <a href="../../../../../org/apache/hadoop/hbase/procedure/flush/MasterFlushTableProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure.flush">MasterFlushTableProcedureManager</a>, <a href="../../../../../org/apache/hadoop/hbase/master/snapshot/SnapshotManager.html" title="class in org.apache.hadoop.hbase.master.snapshot">SnapshotManager</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>@InterfaceAudience.Private |
| public abstract class <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/MasterProcedureManager.html#line.57">MasterProcedureManager</a> |
| extends <a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureManager</a> |
| implements <a href="../../../../../org/apache/hadoop/hbase/Stoppable.html" title="interface in org.apache.hadoop.hbase">Stoppable</a></pre> |
| <div class="block">A life-cycle management interface for globally barriered procedures on master. |
| See the following doc on details of globally barriered procedure: |
| https://issues.apache.org/jira/secure/attachment/12555103/121127-global-barrier-proc.pdf |
| |
| To implement a custom globally barriered procedure, user needs to extend two classes: |
| <a href="../../../../../org/apache/hadoop/hbase/procedure/MasterProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure"><code>MasterProcedureManager</code></a> and <a href="../../../../../org/apache/hadoop/hbase/procedure/RegionServerProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure"><code>RegionServerProcedureManager</code></a>. Implementation of |
| <a href="../../../../../org/apache/hadoop/hbase/procedure/MasterProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure"><code>MasterProcedureManager</code></a> is loaded into <a href="../../../../../org/apache/hadoop/hbase/master/HMaster.html" title="class in org.apache.hadoop.hbase.master"><code>HMaster</code></a> |
| process via configuration parameter 'hbase.procedure.master.classes', while implementation of |
| <a href="../../../../../org/apache/hadoop/hbase/procedure/RegionServerProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure"><code>RegionServerProcedureManager</code></a> is loaded into |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/HRegionServer.html" title="class in org.apache.hadoop.hbase.regionserver"><code>HRegionServer</code></a> process via |
| configuration parameter 'hbase.procedure.regionserver.classes'. |
| |
| An example of globally barriered procedure implementation is |
| <a href="../../../../../org/apache/hadoop/hbase/master/snapshot/SnapshotManager.html" title="class in org.apache.hadoop.hbase.master.snapshot"><code>SnapshotManager</code></a> and |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html" title="class in org.apache.hadoop.hbase.regionserver.snapshot"><code>RegionServerSnapshotManager</code></a>. |
| |
| A globally barriered procedure is identified by its signature (usually it is the name of the |
| procedure znode). During the initialization phase, the initialize methods are called by both |
| <a href="../../../../../org/apache/hadoop/hbase/master/HMaster.html" title="class in org.apache.hadoop.hbase.master"><code>HMaster</code></a> |
| and <a href="../../../../../org/apache/hadoop/hbase/regionserver/HRegionServer.html" title="class in org.apache.hadoop.hbase.regionserver"><code>HRegionServer</code></a> which create the procedure znode |
| and register the listeners. A procedure can be triggered by its signature and an instant name |
| (encapsulated in a <code>HBaseProtos.ProcedureDescription</code> object). When the servers are shutdown, |
| the stop methods on both classes are called to clean up the data associated with the procedure.</div> |
| </li> |
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| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/MasterProcedureManager.html#MasterProcedureManager--">MasterProcedureManager</a></span>()</code> </td> |
| </tr> |
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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>abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/MasterProcedureManager.html#checkPermissions-org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription-org.apache.hadoop.hbase.security.access.AccessChecker-org.apache.hadoop.hbase.security.User-">checkPermissions</a></span>(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription desc, |
| <a href="../../../../../org/apache/hadoop/hbase/security/access/AccessChecker.html" title="class in org.apache.hadoop.hbase.security.access">AccessChecker</a> accessChecker, |
| <a href="../../../../../org/apache/hadoop/hbase/security/User.html" title="class in org.apache.hadoop.hbase.security">User</a> user)</code> |
| <div class="block">Check for required permissions before executing the procedure.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/MasterProcedureManager.html#execProcedure-org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription-">execProcedure</a></span>(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription desc)</code> |
| <div class="block">Execute a distributed procedure on cluster</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/MasterProcedureManager.html#execProcedureWithRet-org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription-">execProcedureWithRet</a></span>(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription desc)</code> |
| <div class="block">Execute a distributed procedure on cluster with return data.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/MasterProcedureManager.html#initialize-org.apache.hadoop.hbase.master.MasterServices-org.apache.hadoop.hbase.master.MetricsMaster-">initialize</a></span>(<a href="../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a> master, |
| <a href="../../../../../org/apache/hadoop/hbase/master/MetricsMaster.html" title="class in org.apache.hadoop.hbase.master">MetricsMaster</a> metricsMaster)</code> |
| <div class="block">Initialize a globally barriered procedure for master.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>abstract boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/MasterProcedureManager.html#isProcedureDone-org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription-">isProcedureDone</a></span>(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription desc)</code> |
| <div class="block">Check if the procedure is finished successfully</div> |
| </td> |
| </tr> |
| </table> |
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| </a> |
| <h3>Methods inherited from class org.apache.hadoop.hbase.procedure.<a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureManager</a></h3> |
| <code><a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureManager.html#equals-java.lang.Object-">equals</a>, <a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureManager.html#getProcedureSignature--">getProcedureSignature</a>, <a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureManager.html#hashCode--">hashCode</a></code></li> |
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| <h3>Methods inherited from class java.lang.<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></h3> |
| <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#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#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
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| <h3>Methods inherited from interface org.apache.hadoop.hbase.<a href="../../../../../org/apache/hadoop/hbase/Stoppable.html" title="interface in org.apache.hadoop.hbase">Stoppable</a></h3> |
| <code><a href="../../../../../org/apache/hadoop/hbase/Stoppable.html#isStopped--">isStopped</a>, <a href="../../../../../org/apache/hadoop/hbase/Stoppable.html#stop-java.lang.String-">stop</a></code></li> |
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| <h4>MasterProcedureManager</h4> |
| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/MasterProcedureManager.html#line.57">MasterProcedureManager</a>()</pre> |
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| <h4>initialize</h4> |
| <pre>public abstract void <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/MasterProcedureManager.html#line.66">initialize</a>(<a href="../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a> master, |
| <a href="../../../../../org/apache/hadoop/hbase/master/MetricsMaster.html" title="class in org.apache.hadoop.hbase.master">MetricsMaster</a> metricsMaster) |
| throws org.apache.zookeeper.KeeperException, |
| <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>, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/UnsupportedOperationException.html?is-external=true" title="class or interface in java.lang">UnsupportedOperationException</a></pre> |
| <div class="block">Initialize a globally barriered procedure for master.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>master</code> - Master service interface</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>org.apache.zookeeper.KeeperException</code></dd> |
| <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> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/UnsupportedOperationException.html?is-external=true" title="class or interface in java.lang">UnsupportedOperationException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="execProcedure-org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription-"> |
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| <h4>execProcedure</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/MasterProcedureManager.html#line.75">execProcedure</a>(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription desc) |
| 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">Execute a distributed procedure on cluster</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>desc</code> - Procedure description</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="execProcedureWithRet-org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription-"> |
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| <h4>execProcedureWithRet</h4> |
| <pre>public byte[] <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/MasterProcedureManager.html#line.84">execProcedureWithRet</a>(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription desc) |
| 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">Execute a distributed procedure on cluster with return data.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>desc</code> - Procedure description</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>data returned from the procedure execution, null if no data</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="checkPermissions-org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription-org.apache.hadoop.hbase.security.access.AccessChecker-org.apache.hadoop.hbase.security.User-"> |
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| <h4>checkPermissions</h4> |
| <pre>public abstract void <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/MasterProcedureManager.html#line.93">checkPermissions</a>(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription desc, |
| <a href="../../../../../org/apache/hadoop/hbase/security/access/AccessChecker.html" title="class in org.apache.hadoop.hbase.security.access">AccessChecker</a> accessChecker, |
| <a href="../../../../../org/apache/hadoop/hbase/security/User.html" title="class in org.apache.hadoop.hbase.security">User</a> user) |
| 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">Check for required permissions before executing the procedure.</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> - if permissions requirements are not met.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isProcedureDone-org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription-"> |
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| <h4>isProcedureDone</h4> |
| <pre>public abstract boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/MasterProcedureManager.html#line.103">isProcedureDone</a>(org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription desc) |
| 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">Check if the procedure is finished successfully</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>desc</code> - Procedure description</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the specified procedure is finished successfully</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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