devapidocs/org/apache/hadoop/hbase/master/locking/LockProcedure.html - hbase-site - Git at Google

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 <div class="subTitle">org.apache.hadoop.hbase.master.locking</div>
 <h2 title="Class LockProcedure" class="title">Class LockProcedure</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>
 <li>
 <ul class="inheritance">
 <li><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">org.apache.hadoop.hbase.procedure2.Procedure</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&gt;</li>
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 <ul class="inheritance">
 <li>org.apache.hadoop.hbase.master.locking.LockProcedure</li>
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 <dt>All Implemented Interfaces:</dt>
 <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&gt;&gt;, <a href="../../../../../../org/apache/hadoop/hbase/master/procedure/TableProcedureInterface.html" title="interface in org.apache.hadoop.hbase.master.procedure">TableProcedureInterface</a></dd>
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 <pre>@InterfaceAudience.Private
 public final class <a href="../../../../../../src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.html#line.58">LockProcedure</a>
 extends <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&gt;
 implements <a href="../../../../../../org/apache/hadoop/hbase/master/procedure/TableProcedureInterface.html" title="interface in org.apache.hadoop.hbase.master.procedure">TableProcedureInterface</a></pre>
 <div class="block">Procedure to allow blessed clients and external admin tools to take our internal Schema locks
  used by the procedure framework isolating procedures doing creates/deletes etc. on
  table/namespace/regions.
  This procedure when scheduled, acquires specified locks, suspends itself and waits for:
  <ul>
  <li>Call to unlock: if lock request came from the process itself, say master chore.</li>
  <li>Timeout : if lock request came from RPC. On timeout, evaluates if it should continue holding
  the lock or not based on last heartbeat timestamp.</li>
  </ul></div>
 </li>
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 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Class and Description</th>
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 <td class="colFirst"><code>private static interface&nbsp;</code></td>
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 <td class="colFirst"><code>private class&nbsp;</code></td>
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 <td class="colFirst"><code>private class&nbsp;</code></td>
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 <code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.LockState.html" title="enum in org.apache.hadoop.hbase.procedure2">Procedure.LockState</a></code></li>
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 <th class="colFirst" scope="col">Modifier and Type</th>
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 <td class="colFirst"><code>static int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#DEFAULT_LOCAL_MASTER_LOCKS_TIMEOUT_MS">DEFAULT_LOCAL_MASTER_LOCKS_TIMEOUT_MS</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>static int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#DEFAULT_REMOTE_LOCKS_TIMEOUT_MS">DEFAULT_REMOTE_LOCKS_TIMEOUT_MS</a></span></code>&nbsp;</td>
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 <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/master/locking/LockProcedure.html#description">description</a></span></code>&nbsp;</td>
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 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#event">event</a></span></code>&nbsp;</td>
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 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#lastHeartBeat">lastHeartBeat</a></span></code>&nbsp;</td>
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 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#LOCAL_MASTER_LOCKS_TIMEOUT_MS_CONF">LOCAL_MASTER_LOCKS_TIMEOUT_MS_CONF</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.LockInterface.html" title="interface in org.apache.hadoop.hbase.master.locking">LockProcedure.LockInterface</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#lock">lock</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>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/master/locking/LockProcedure.html#lockAcquireLatch">lockAcquireLatch</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicBoolean.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicBoolean</a></code></td>
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 <td class="colFirst"><code>private static org.slf4j.Logger</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#LOG">LOG</a></span></code>&nbsp;</td>
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 <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/master/locking/LockProcedure.html#namespace">namespace</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/master/procedure/TableProcedureInterface.TableOperationType.html" title="enum in org.apache.hadoop.hbase.master.procedure">TableProcedureInterface.TableOperationType</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#opType">opType</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#recoveredMasterLock">recoveredMasterLock</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>[]</code></td>
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 <td class="colFirst"><code>static <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/master/locking/LockProcedure.html#REMOTE_LOCKS_TIMEOUT_MS_CONF">REMOTE_LOCKS_TIMEOUT_MS_CONF</a></span></code>&nbsp;</td>
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 <tr class="rowColor">
 <td class="colFirst"><code>private boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#suspended">suspended</a></span></code>&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#tableName">tableName</a></span></code>&nbsp;</td>
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 <tr class="rowColor">
 <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/procedure2/LockType.html" title="enum in org.apache.hadoop.hbase.procedure2">LockType</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#type">type</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicBoolean.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicBoolean</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#unlock">unlock</a></span></code>&nbsp;</td>
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 <code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#NO_PROC_ID">NO_PROC_ID</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#NO_TIMEOUT">NO_TIMEOUT</a></code></li>
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 <code><a href="../../../../../../org/apache/hadoop/hbase/master/procedure/TableProcedureInterface.html#DUMMY_NAMESPACE_TABLE_NAME">DUMMY_NAMESPACE_TABLE_NAME</a></code></li>
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 <tr>
 <th class="colFirst" scope="col">Modifier</th>
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 <td class="colFirst"><code>&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#LockProcedure--">LockProcedure</a></span>()</code>&nbsp;</td>
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 <td class="colFirst"><code>private </code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#LockProcedure-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.procedure2.LockType-java.lang.String-java.util.concurrent.CountDownLatch-">LockProcedure</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf,
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 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#LockProcedure-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.client.RegionInfo:A-org.apache.hadoop.hbase.procedure2.LockType-java.lang.String-java.util.concurrent.CountDownLatch-">LockProcedure</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf,
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 <div class="block">Constructor for region lock(s).</div>
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 <td class="colFirst"><code>&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#LockProcedure-org.apache.hadoop.conf.Configuration-java.lang.String-org.apache.hadoop.hbase.procedure2.LockType-java.lang.String-java.util.concurrent.CountDownLatch-">LockProcedure</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf,
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              <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>&nbsp;lockAcquireLatch)</code>
 <div class="block">Constructor for namespace lock.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#LockProcedure-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.TableName-org.apache.hadoop.hbase.procedure2.LockType-java.lang.String-java.util.concurrent.CountDownLatch-">LockProcedure</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf,
              <a href="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&nbsp;tableName,
              <a href="../../../../../../org/apache/hadoop/hbase/procedure2/LockType.html" title="enum in org.apache.hadoop.hbase.procedure2">LockType</a>&nbsp;type,
              <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;description,
              <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>&nbsp;lockAcquireLatch)</code>
 <div class="block">Constructor for table lock.</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="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>protected boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#abort-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">abort</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&nbsp;env)</code>
 <div class="block">The abort() call is asynchronous and each procedure must decide how to deal
  with it, if they want to be abortable.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>protected <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.LockState.html" title="enum in org.apache.hadoop.hbase.procedure2">Procedure.LockState</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#acquireLock-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">acquireLock</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&nbsp;env)</code>
 <div class="block">The user should override this method if they need a lock on an Entity.</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>protected void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#beforeReplay-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">beforeReplay</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&nbsp;env)</code>
 <div class="block">On recovery, re-execute from start to acquire the locks.</div>
 </td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>protected void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#deserializeStateData-org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer-">deserializeStateData</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/procedure2/ProcedureStateSerializer.html" title="interface in org.apache.hadoop.hbase.procedure2">ProcedureStateSerializer</a>&nbsp;serializer)</code>
 <div class="block">Called on store load to allow the user to decode the previously serialized
  state.</div>
 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code>protected <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&gt;[]</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#execute-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">execute</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&nbsp;env)</code>
 <div class="block">The main code of the procedure.</div>
 </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/master/locking/LockProcedure.html#getDescription--">getDescription</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#getTableName--">getTableName</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/master/procedure/TableProcedureInterface.TableOperationType.html" title="enum in org.apache.hadoop.hbase.master.procedure">TableProcedureInterface.TableOperationType</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#getTableOperationType--">getTableOperationType</a></span>()</code>
 <div class="block">Given an operation type we can take decisions about what to do with pending operations.</div>
 </td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/LockType.html" title="enum in org.apache.hadoop.hbase.procedure2">LockType</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#getType--">getType</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code>private boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#hasHeartbeatExpired--">hasHeartbeatExpired</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i10" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#holdLock-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">holdLock</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&nbsp;env)</code>
 <div class="block">Used to keep the procedure lock even when the procedure is yielding or suspended.</div>
 </td>
 </tr>
 <tr id="i11" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#isLocked--">isLocked</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i12" class="altColor">
 <td class="colFirst"><code>protected void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#releaseLock-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">releaseLock</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&nbsp;env)</code>
 <div class="block">The user should override this method, and release lock if necessary.</div>
 </td>
 </tr>
 <tr id="i13" class="rowColor">
 <td class="colFirst"><code>protected void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#rollback-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">rollback</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&nbsp;env)</code>
 <div class="block">The code to undo what was done by the execute() code.</div>
 </td>
 </tr>
 <tr id="i14" class="altColor">
 <td class="colFirst"><code>protected void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#serializeStateData-org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer-">serializeStateData</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/procedure2/ProcedureStateSerializer.html" title="interface in org.apache.hadoop.hbase.procedure2">ProcedureStateSerializer</a>&nbsp;serializer)</code>
 <div class="block">The user-level code of the procedure may have some state to
  persist (e.g.</div>
 </td>
 </tr>
 <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/master/locking/LockProcedure.html#setTimeoutFailure-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">setTimeoutFailure</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&nbsp;env)</code>
 <div class="block">Re run the procedure after every timeout to write new WAL entries so we don't hold back old
  WALs.</div>
 </td>
 </tr>
 <tr id="i16" class="altColor">
 <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.LockInterface.html" title="interface in org.apache.hadoop.hbase.master.locking">LockProcedure.LockInterface</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#setupLock--">setupLock</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i17" class="rowColor">
 <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.LockInterface.html" title="interface in org.apache.hadoop.hbase.master.locking">LockProcedure.LockInterface</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#setupNamespaceLock--">setupNamespaceLock</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i18" class="altColor">
 <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.LockInterface.html" title="interface in org.apache.hadoop.hbase.master.locking">LockProcedure.LockInterface</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#setupRegionLock--">setupRegionLock</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i19" class="rowColor">
 <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.LockInterface.html" title="interface in org.apache.hadoop.hbase.master.locking">LockProcedure.LockInterface</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#setupTableLock--">setupTableLock</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i20" class="altColor">
 <td class="colFirst"><code>protected void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#toStringClassDetails-java.lang.StringBuilder-">toStringClassDetails</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;builder)</code>
 <div class="block">Extend the toString() information with the procedure details
  e.g.</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/master/locking/LockProcedure.html#unlock-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">unlock</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&nbsp;env)</code>&nbsp;</td>
 </tr>
 <tr id="i22" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.html#updateHeartBeat--">updateHeartBeat</a></span>()</code>
 <div class="block">Updates timeout deadline for the lock.</div>
 </td>
 </tr>
 </table>
 <ul class="blockList">
 <li class="blockList"><a name="methods.inherited.from.class.org.apache.hadoop.hbase.procedure2.Procedure">
 <!--   -->
 </a>
 <h3>Methods inherited from class&nbsp;org.apache.hadoop.hbase.procedure2.<a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a></h3>
 <code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#addStackIndex-int-">addStackIndex</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#afterReplay-TEnvironment-">afterReplay</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#bypass-TEnvironment-">bypass</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#compareTo-org.apache.hadoop.hbase.procedure2.Procedure-">compareTo</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#completionCleanup-TEnvironment-">completionCleanup</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#doExecute-TEnvironment-">doExecute</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#doRollback-TEnvironment-">doRollback</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#elapsedTime--">elapsedTime</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getChildrenLatch--">getChildrenLatch</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getException--">getException</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getLastUpdate--">getLastUpdate</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getNonceKey--">getNonceKey</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getOwner--">getOwner</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getParentProcId--">getParentProcId</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getProcedureMetrics-TEnvironment-">getProcedureMetrics</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getProcId--">getProcId</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getProcIdHashCode-long-">getProcIdHashCode</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getProcName--">getProcName</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getResult--">getResult</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getRootProcedureId-java.util.Map-org.apache.hadoop.hbase.procedure2.Procedure-">getRootProcedureId</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getRootProcId--">getRootProcId</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getStackIndexes--">getStackIndexes</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getState--">getState</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getSubmittedTime--">getSubmittedTime</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getTimeout--">getTimeout</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getTimeoutTimestamp--">getTimeoutTimestamp</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#hasChildren--">hasChildren</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#hasException--">hasException</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#hasLock--">hasLock</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#hasOwner--">hasOwner</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#hasParent--">hasParent</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#hasTimeout--">hasTimeout</a>, <a 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href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#isSuccess--">isSuccess</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#isWaiting--">isWaiting</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#isYieldAfterExecutionStep-TEnvironment-">isYieldAfterExecutionStep</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#removeStackIndex--">removeStackIndex</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setAbortFailure-java.lang.String-java.lang.String-">setAbortFailure</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setChildrenLatch-int-">setChildrenLatch</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setFailure-org.apache.hadoop.hbase.procedure2.RemoteProcedureException-">setFailure</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setFailure-java.lang.String-java.lang.Throwable-">setFailure</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setLastUpdate-long-">setLastUpdate</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setNonceKey-org.apache.hadoop.hbase.util.NonceKey-">setNonceKey</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setOwner-java.lang.String-">setOwner</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setOwner-org.apache.hadoop.hbase.security.User-">setOwner</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setParentProcId-long-">setParentProcId</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setProcId-long-">setProcId</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setResult-byte:A-">setResult</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setRootProcId-long-">setRootProcId</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setStackIndexes-java.util.List-">setStackIndexes</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setState-org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureState-">setState</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setSubmittedTime-long-">setSubmittedTime</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setTimeout-int-">setTimeout</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#shouldWaitClientAck-TEnvironment-">shouldWaitClientAck</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#skipPersistence--">skipPersistence</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#toString--">toString</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#toStringClass--">toStringClass</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#toStringDetails--">toStringDetails</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#toStringSimpleSB--">toStringSimpleSB</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#toStringState-java.lang.StringBuilder-">toStringState</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#updateMetricsOnFinish-TEnvironment-long-boolean-">updateMetricsOnFinish</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#updateMetricsOnSubmit-TEnvironment-">updateMetricsOnSubmit</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#updateTimestamp--">updateTimestamp</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#waitInitialized-TEnvironment-">waitInitialized</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#wasExecuted--">wasExecuted</a></code></li>
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 <ul class="blockList">
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 <!--   -->
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 <h3>Methods inherited from class&nbsp;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#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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 <h3>Field Detail</h3>
 <a name="LOG">
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 <h4>LOG</h4>
 <pre>private static final&nbsp;org.slf4j.Logger <a href="../../../../../../src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.html#line.60">LOG</a></pre>
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 <a name="DEFAULT_REMOTE_LOCKS_TIMEOUT_MS">
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 <dt><span class="paramLabel">Parameters:</span></dt>
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  It is called when the procedure or one of the sub-procedures failed or an
  abort was requested. It should cleanup all the resources created by
  the execute() call. The implementation must be idempotent since rollback()
  may be called multiple time in case of machine failure in the middle
  of the execution.</div>
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 <dd><code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#rollback-TEnvironment-">rollback</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&gt;</code></dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>env</code> - the environment passed to the ProcedureExecutor</dd>
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 <div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#abort-TEnvironment-">Procedure</a></code></span></div>
 <div class="block">The abort() call is asynchronous and each procedure must decide how to deal
  with it, if they want to be abortable. The simplest implementation
  is to have an AtomicBoolean set in the abort() method and then the execute()
  will check if the abort flag is set or not.
  abort() may be called multiple times from the client, so the implementation
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  <p>NOTE: abort() is not like Thread.interrupt(). It is just a notification
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 <dl>
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 <div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#serializeStateData-org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer-">Procedure</a></code></span></div>
 <div class="block">The user-level code of the procedure may have some state to
  persist (e.g. input arguments or current position in the processing state) to
  be able to resume on failure.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>serializer</code> - stores the serializable state</dd>
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 <div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#deserializeStateData-org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer-">Procedure</a></code></span></div>
 <div class="block">Called on store load to allow the user to decode the previously serialized
  state.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#deserializeStateData-org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer-">deserializeStateData</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&gt;</code></dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>serializer</code> - contains the serialized state</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
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 <pre>protected&nbsp;<a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.LockState.html" title="enum in org.apache.hadoop.hbase.procedure2">Procedure.LockState</a>&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.html#line.309">acquireLock</a>(<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&nbsp;env)</pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#acquireLock-TEnvironment-">Procedure</a></code></span></div>
 <div class="block">The user should override this method if they need a lock on an Entity. A lock can be anything,
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  invokes <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#execute-TEnvironment-"><code>Procedure.execute(Object)</code></a>. It calls <a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#releaseLock-TEnvironment-"><code>Procedure.releaseLock(Object)</code></a> after the call to
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  queued waiting that specific table create to happen.
  <p/>
  There are 3 LockState:
  <ul>
  <li>LOCK_ACQUIRED should be returned when the proc has the lock and the proc is ready to
  execute.</li>
  <li>LOCK_YIELD_WAIT should be returned when the proc has not the lock and the framework should
  take care of readding the procedure back to the runnable set for retry</li>
  <li>LOCK_EVENT_WAIT should be returned when the proc has not the lock and someone will take
  care of readding the procedure back to the runnable set when the lock is available.</li>
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 <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
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 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the lock state as described above.</dd>
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 <div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#releaseLock-TEnvironment-">Procedure</a></code></span></div>
 <div class="block">The user should override this method, and release lock if necessary.</div>
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 <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
 <dd><code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#releaseLock-TEnvironment-">releaseLock</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&gt;</code></dd>
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 <div class="block">On recovery, re-execute from start to acquire the locks.
  Need to explicitly set it to RUNNABLE because the procedure might have been in WAITING_TIMEOUT
  state when crash happened. In which case, it'll be sent back to timeout queue on recovery,
  which we don't want since we want to require locks.</div>
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 <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
 <dd><code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#beforeReplay-TEnvironment-">beforeReplay</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&gt;</code></dd>
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 <div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#toStringClassDetails-java.lang.StringBuilder-">Procedure</a></code></span></div>
 <div class="block">Extend the toString() information with the procedure details
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 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>builder</code> - the string builder to use to append the proc specific information</dd>
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 <h4>getType</h4>
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 <h4>setupLock</h4>
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 <pre>private&nbsp;<a href="../../../../../../org/apache/hadoop/hbase/master/locking/LockProcedure.LockInterface.html" title="interface in org.apache.hadoop.hbase.master.locking">LockProcedure.LockInterface</a>&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.html#line.388">setupTableLock</a>()
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 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code></dd>
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 <pre>public&nbsp;boolean&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.html#line.418">isLocked</a>()</pre>
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 <pre>public&nbsp;boolean&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.html#line.423">holdLock</a>(<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&nbsp;env)</pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#holdLock-TEnvironment-">Procedure</a></code></span></div>
 <div class="block">Used to keep the procedure lock even when the procedure is yielding or suspended.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
 <dd><code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#holdLock-TEnvironment-">holdLock</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html" title="class in org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>&gt;</code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>true if the procedure should hold on the lock until completionCleanup()</dd>
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