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 <div class="subTitle">org.apache.hadoop.hbase.procedure</div>
 <h2 title="Class Procedure" class="title">Class Procedure</h2>
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 <ul class="inheritance">
 <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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 <li>org.apache.hadoop.hbase.procedure.Procedure</li>
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 <div class="description">
 <ul class="blockList">
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 <dl>
 <dt>All Implemented Interfaces:</dt>
 <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/Callable.html?is-external=true" title="class or interface in java.util.concurrent">Callable</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Void.html?is-external=true" title="class or interface in java.lang">Void</a>&gt;, <a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignExceptionListener.html" title="interface in org.apache.hadoop.hbase.errorhandling">ForeignExceptionListener</a></dd>
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 <pre>@InterfaceAudience.Private
 public class <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/Procedure.html#line.69">Procedure</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/util/concurrent/Callable.html?is-external=true" title="class or interface in java.util.concurrent">Callable</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Void.html?is-external=true" title="class or interface in java.lang">Void</a>&gt;, <a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignExceptionListener.html" title="interface in org.apache.hadoop.hbase.errorhandling">ForeignExceptionListener</a></pre>
 <div class="block">A globally-barriered distributed procedure.  This class encapsulates state and methods for
  tracking and managing a distributed procedure, as well as aborting if any member encounters
  a problem or if a cancellation is requested.
  <p>
  All procedures first attempt to reach a barrier point with the <a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#sendGlobalBarrierStart--"><code>sendGlobalBarrierStart()</code></a>
  method.  The procedure contacts all members and waits for all subprocedures to execute
  <a href="../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#acquireBarrier--"><code>Subprocedure.acquireBarrier()</code></a> to acquire its local piece of the global barrier and then
  send acquisition info back to the coordinator.  If all acquisitions at subprocedures succeed,
  the coordinator then will call <a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#sendGlobalBarrierReached--"><code>sendGlobalBarrierReached()</code></a>.  This notifies members to
  execute the <a href="../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#insideBarrier--"><code>Subprocedure.insideBarrier()</code></a> method.  The procedure is blocked until all
  <a href="../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#insideBarrier--"><code>Subprocedure.insideBarrier()</code></a> executions complete at the members.  When
  <a href="../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#insideBarrier--"><code>Subprocedure.insideBarrier()</code></a> completes at each member, the member sends notification to
  the coordinator.  Once all members complete, the coordinator calls
  <a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#sendGlobalBarrierComplete--"><code>sendGlobalBarrierComplete()</code></a>.
  <p>
  If errors are encountered remotely, they are forwarded to the coordinator, and
  <a href="../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#cleanup-java.lang.Exception-"><code>Subprocedure.cleanup(Exception)</code></a> is called.
  <p>
  Each Procedure and each Subprocedure enforces a time limit on the execution time. If the time
  limit expires before the procedure completes the <a href="../../../../../org/apache/hadoop/hbase/errorhandling/TimeoutExceptionInjector.html" title="class in org.apache.hadoop.hbase.errorhandling"><code>TimeoutExceptionInjector</code></a> will trigger
  an <a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling"><code>ForeignException</code></a> to abort the procedure.  This is particularly useful for situations
  when running a distributed <a href="../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html" title="class in org.apache.hadoop.hbase.procedure"><code>Subprocedure</code></a> so participants can avoid blocking for extreme
  amounts of time if one of the participants fails or takes a really long time (e.g. GC pause).
  <p>
  Users should generally not directly create or subclass instances of this.  They are created
  for them implicitly via <a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureCoordinator.html#startProcedure-org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher-java.lang.String-byte:A-java.util.List-"><code>ProcedureCoordinator.startProcedure(ForeignExceptionDispatcher,
  String, byte[], List)</code></a>}</div>
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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">&nbsp;</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>(package private) <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CountDownLatch.html?is-external=true" title="class or interface in java.util.concurrent">CountDownLatch</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#acquiredBarrierLatch">acquiredBarrierLatch</a></span></code>
 <div class="block">latch for waiting until all members have acquire in barrier state</div>
 </td>
 </tr>
 <tr class="rowColor">
 <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>&lt;<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>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#acquiringMembers">acquiringMembers</a></span></code>&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private byte[]</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#args">args</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>(package private) <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CountDownLatch.html?is-external=true" title="class or interface in java.util.concurrent">CountDownLatch</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#completedLatch">completedLatch</a></span></code>
 <div class="block">latch for waiting until a procedure has completed</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureCoordinator.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureCoordinator</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#coord">coord</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</a>&lt;<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>,byte[]&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#dataFromFinishedMembers">dataFromFinishedMembers</a></span></code>&nbsp;</td>
 </tr>
 <tr 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>&lt;<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>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#inBarrierMembers">inBarrierMembers</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#joinBarrierLock">joinBarrierLock</a></span></code>
 <div class="block">lock to prevent nodes from acquiring and then releasing before we can track them</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/procedure/Procedure.html#LOG">LOG</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignExceptionDispatcher.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignExceptionDispatcher</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#monitor">monitor</a></span></code>
 <div class="block">monitor to check for errors</div>
 </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/procedure/Procedure.html#procName">procName</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>(package private) <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CountDownLatch.html?is-external=true" title="class or interface in java.util.concurrent">CountDownLatch</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#releasedBarrierLatch">releasedBarrierLatch</a></span></code>
 <div class="block">latch for waiting until all members have executed and released their in barrier state</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>protected <a href="../../../../../org/apache/hadoop/hbase/errorhandling/TimeoutExceptionInjector.html" title="class in org.apache.hadoop.hbase.errorhandling">TimeoutExceptionInjector</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#timeoutInjector">timeoutInjector</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>protected long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#wakeFrequency">wakeFrequency</a></span></code>
 <div class="block">frequency to check for errors (ms)</div>
 </td>
 </tr>
 </table>
 </li>
 </ul>
 <!-- ======== CONSTRUCTOR SUMMARY ======== -->
 <ul class="blockList">
 <li class="blockList"><a name="constructor.summary">
 <!--   -->
 </a>
 <h3>Constructor Summary</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
 <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
 <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/Procedure.html#Procedure-org.apache.hadoop.hbase.procedure.ProcedureCoordinator-org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher-long-long-java.lang.String-byte:A-java.util.List-">Procedure</a></span>(<a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureCoordinator.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureCoordinator</a>&nbsp;coord,
          <a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignExceptionDispatcher.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignExceptionDispatcher</a>&nbsp;monitor,
          long&nbsp;wakeFreq,
          long&nbsp;timeout,
          <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>&nbsp;procName,
          byte[]&nbsp;args,
          <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>&lt;<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>&gt;&nbsp;expectedMembers)</code>
 <div class="block">Creates a procedure.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#Procedure-org.apache.hadoop.hbase.procedure.ProcedureCoordinator-long-long-java.lang.String-byte:A-java.util.List-">Procedure</a></span>(<a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureCoordinator.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureCoordinator</a>&nbsp;coord,
          long&nbsp;wakeFreq,
          long&nbsp;timeout,
          <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>&nbsp;procName,
          byte[]&nbsp;args,
          <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>&lt;<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>&gt;&nbsp;expectedMembers)</code>
 <div class="block">Create a procedure.</div>
 </td>
 </tr>
 </table>
 </li>
 </ul>
 <!-- ========== METHOD SUMMARY =========== -->
 <ul class="blockList">
 <li class="blockList"><a name="method.summary">
 <!--   -->
 </a>
 <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">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</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/procedure/Procedure.html#barrierAcquiredByMember-java.lang.String-">barrierAcquiredByMember</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>&nbsp;member)</code>
 <div class="block">Call back triggered by an individual member upon successful local barrier acquisition</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/Procedure.html#barrierReleasedByMember-java.lang.String-byte:A-">barrierReleasedByMember</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>&nbsp;member,
                        byte[]&nbsp;dataFromMember)</code>
 <div class="block">Call back triggered by a individual member upon successful local in-barrier execution and
  release</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Void.html?is-external=true" title="class or interface in java.lang">Void</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#call--">call</a></span>()</code>
 <div class="block">This call is the main execution thread of the barriered procedure.</div>
 </td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignExceptionDispatcher.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignExceptionDispatcher</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#getErrorMonitor--">getErrorMonitor</a></span>()</code>
 <div class="block">Get the ForeignExceptionDispatcher</div>
 </td>
 </tr>
 <tr id="i4" 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/procedure/Procedure.html#getName--">getName</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i5" 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/procedure/Procedure.html#getStatus--">getStatus</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#isCompleted--">isCompleted</a></span>()</code>
 <div class="block">Check if the entire procedure has globally completed, or has been aborted.</div>
 </td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#receive-org.apache.hadoop.hbase.errorhandling.ForeignException-">receive</a></span>(<a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignException</a>&nbsp;e)</code>
 <div class="block">A callback that handles incoming ForeignExceptions.</div>
 </td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#sendGlobalBarrierComplete--">sendGlobalBarrierComplete</a></span>()</code>
 <div class="block">Sends a message to members that all <a href="../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html#insideBarrier--"><code>Subprocedure.insideBarrier()</code></a> calls have completed.</div>
 </td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#sendGlobalBarrierReached--">sendGlobalBarrierReached</a></span>()</code>
 <div class="block">Sends a message to all members that the global barrier condition has been satisfied.</div>
 </td>
 </tr>
 <tr id="i10" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#sendGlobalBarrierStart--">sendGlobalBarrierStart</a></span>()</code>
 <div class="block">Sends a message to Members to create a new <a href="../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html" title="class in org.apache.hadoop.hbase.procedure"><code>Subprocedure</code></a> for this Procedure and execute
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 <tr id="i11" class="rowColor">
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 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html#waitForCompletedWithRet--">waitForCompletedWithRet</a></span>()</code>
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 <td class="colFirst"><code>static void</code></td>
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 <pre>public&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/Procedure.html#line.125">Procedure</a>(<a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureCoordinator.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureCoordinator</a>&nbsp;coord,
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                  long&nbsp;timeout,
                  <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>&nbsp;procName,
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 <div class="block">Creates a procedure. (FOR TESTING)

  <a href="../../../../../org/apache/hadoop/hbase/procedure/Procedure.html" title="class in org.apache.hadoop.hbase.procedure"><code>Procedure</code></a> state to be run by a <a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureCoordinator.html" title="class in org.apache.hadoop.hbase.procedure"><code>ProcedureCoordinator</code></a>.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>coord</code> - coordinator to call back to for general errors (e.g.
           <a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureCoordinator.html#rpcConnectionFailure-java.lang.String-java.io.IOException-"><code>ProcedureCoordinator.rpcConnectionFailure(String, IOException)</code></a>).</dd>
 <dd><code>monitor</code> - error monitor to check for external errors</dd>
 <dd><code>wakeFreq</code> - frequency to check for errors while waiting</dd>
 <dd><code>timeout</code> - amount of time to allow the procedure to run before cancelling</dd>
 <dd><code>procName</code> - name of the procedure instance</dd>
 <dd><code>args</code> - argument data associated with the procedure instance</dd>
 <dd><code>expectedMembers</code> - names of the expected members</dd>
 </dl>
 </li>
 </ul>
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 <pre>public&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/Procedure.html#line.158">Procedure</a>(<a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureCoordinator.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureCoordinator</a>&nbsp;coord,
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                  long&nbsp;timeout,
                  <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>&nbsp;procName,
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 <div class="block">Create a procedure.

  Users should generally not directly create instances of this.  They are created them
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 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>coord</code> - coordinator to call back to for general errors (e.g.
           <a href="../../../../../org/apache/hadoop/hbase/procedure/ProcedureCoordinator.html#rpcConnectionFailure-java.lang.String-java.io.IOException-"><code>ProcedureCoordinator.rpcConnectionFailure(String, IOException)</code></a>).</dd>
 <dd><code>wakeFreq</code> - frequency to check for errors while waiting</dd>
 <dd><code>timeout</code> - amount of time to allow the procedure to run before cancelling</dd>
 <dd><code>procName</code> - name of the procedure instance</dd>
 <dd><code>args</code> - argument data associated with the procedure instance</dd>
 <dd><code>expectedMembers</code> - names of the expected members</dd>
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 <pre>public&nbsp;<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>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/Procedure.html#line.164">getName</a>()</pre>
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 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
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 <div class="block">Get the ForeignExceptionDispatcher</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
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 <h4>call</h4>
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 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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 <dl>
 <dt><span class="throwsLabel">Throws:</span></dt>
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 <div class="block">Sends a message to all members that the global barrier condition has been satisfied.  This
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 <dl>
 <dt><span class="throwsLabel">Throws:</span></dt>
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 <dl>
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 <div class="block">Call back triggered by a individual member upon successful local in-barrier execution and
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 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>member</code> - </dd>
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                       throws <a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignException</a>,
                              <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre>
 <div class="block">Waits until the entire procedure has globally completed, or has been aborted.  If an
  exception is thrown the procedure may or not have run cleanup to trigger the completion latch
  yet.</div>
 <dl>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignException</a></code></dd>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></code></dd>
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 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</a>&lt;<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>,byte[]&gt;&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/Procedure.html#line.358">waitForCompletedWithRet</a>()
                                                throws <a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignException</a>,
                                                       <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre>
 <div class="block">Waits until the entire procedure has globally completed, or has been aborted.  If an
  exception is thrown the procedure may or not have run cleanup to trigger the completion latch
  yet.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>data returned from procedure members upon successfully completing subprocedure.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignException</a></code></dd>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></code></dd>
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                     throws <a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignException</a></pre>
 <div class="block">Check if the entire procedure has globally completed, or has been aborted.</div>
 <dl>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignException</a></code></dd>
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 <div class="block">A callback that handles incoming ForeignExceptions.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignExceptionListener.html#receive-org.apache.hadoop.hbase.errorhandling.ForeignException-">receive</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignExceptionListener.html" title="interface in org.apache.hadoop.hbase.errorhandling">ForeignExceptionListener</a></code></dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>e</code> - exception causing the error. Implementations must accept and handle null here.</dd>
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                                 <a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignExceptionSnare.html" title="interface in org.apache.hadoop.hbase.errorhandling">ForeignExceptionSnare</a>&nbsp;monitor,
                                 long&nbsp;wakeFrequency,
                                 <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>&nbsp;latchDescription)
                          throws <a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignException</a>,
                                 <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre>
 <div class="block">Wait for latch to count to zero, ignoring any spurious wake-ups, but waking periodically to
  check for errors</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>latch</code> - latch to wait on</dd>
 <dd><code>monitor</code> - monitor to check for errors while waiting</dd>
 <dd><code>wakeFrequency</code> - frequency to wake up and check for errors (in
           <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/TimeUnit.html?is-external=true#MILLISECONDS" title="class or interface in java.util.concurrent"><code>TimeUnit.MILLISECONDS</code></a>)</dd>
 <dd><code>latchDescription</code> - description of the latch, for logging</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/errorhandling/ForeignException.html" title="class in org.apache.hadoop.hbase.errorhandling">ForeignException</a></code> - type of error the monitor can throw, if the task fails</dd>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></code> - if we are interrupted while waiting on latch</dd>
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