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+<li><a href="../../../../../../overview-summary.html">Overview</a></li>
+<li><a href="package-summary.html">Package</a></li>
+<li class="navBarCell1Rev">Class</li>
+<li><a href="class-use/GCRegionProcedure.html">Use</a></li>
+<li><a href="package-tree.html">Tree</a></li>
+<li><a href="../../../../../../deprecated-list.html">Deprecated</a></li>
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+<div class="subNav">
+<ul class="navList">
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+<li><a
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+ //-->
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+</div>
+<div>
+<ul class="subNavList">
+<li>Summary: </li>
+<li><a
href="#nested.classes.inherited.from.class.org.apache.hadoop.hbase.procedure2.StateMachineProcedure">Nested</a> | </li>
+<li><a href="#field.summary">Field</a> | </li>
+<li><a href="#constructor.summary">Constr</a> | </li>
+<li><a href="#method.summary">Method</a></li>
+</ul>
+<ul class="subNavList">
+<li>Detail: </li>
+<li><a href="#field.detail">Field</a> | </li>
+<li><a href="#constructor.detail">Constr</a> | </li>
+<li><a href="#method.detail">Method</a></li>
+</ul>
+</div>
+<a name="skip.navbar.top">
+<!-- -->
+</a></div>
+<!-- ========= END OF TOP NAVBAR ========= -->
+<!-- ======== START OF CLASS DATA ======== -->
+<div class="header">
+<div class="subTitle">org.apache.hadoop.hbase.master.assignment</div>
+<h2 title="Class GCRegionProcedure" class="title">Class GCRegionProcedure</h2>
+</div>
+<div class="contentContainer">
+<ul class="inheritance">
+<li><a
href="http://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><TEnvironment></li>
+<li>
+<ul class="inheritance">
+<li><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html"
title="class in
org.apache.hadoop.hbase.procedure2">org.apache.hadoop.hbase.procedure2.StateMachineProcedure</a><<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>,TState></li>
+<li>
+<ul class="inheritance">
+<li><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineTableProcedure.html"
title="class in
org.apache.hadoop.hbase.master.procedure">org.apache.hadoop.hbase.master.procedure.AbstractStateMachineTableProcedure</a><TState></li>
+<li>
+<ul class="inheritance">
+<li><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html"
title="class in
org.apache.hadoop.hbase.master.procedure">org.apache.hadoop.hbase.master.procedure.AbstractStateMachineRegionProcedure</a><org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState></li>
+<li>
+<ul class="inheritance">
+<li>org.apache.hadoop.hbase.master.assignment.GCRegionProcedure</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
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+</li>
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+<dl>
+<dt>All Implemented Interfaces:</dt>
+<dd><a
href="http://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true";
title="class or interface in java.lang">Comparable</a><<a
href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html"
title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>>>, <a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/TableProcedureInterface.html"
title="interface in
org.apache.hadoop.hbase.master.procedure">TableProcedureInterface</a></dd>
+</dl>
+<hr>
+<br>
+<pre><a
href="../../../../../../org/apache/hadoop/hbase/classification/InterfaceAudience.Private.html"
title="annotation in
org.apache.hadoop.hbase.classification">@InterfaceAudience.Private</a>
+public class <a
href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#line.49">GCRegionProcedure</a>
+extends <a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html"
title="class in
org.apache.hadoop.hbase.master.procedure">AbstractStateMachineRegionProcedure</a><org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState></pre>
+<div class="block">GC a Region that is no longer in use. It has been split or
merged away.
+ Caller determines if it is GC time. This Procedure does not check.
+ <p>This is a Region StateMachine Procedure. We take a read lock on the Table
and then
+ exclusive on the Region.</div>
+</li>
+</ul>
+</div>
+<div class="summary">
+<ul class="blockList">
+<li class="blockList">
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name="nested.classes.inherited.from.class.org.apache.hadoop.hbase.procedure2.StateMachineProcedure">
+<!-- -->
+</a>
+<h3>Nested classes/interfaces inherited from
class org.apache.hadoop.hbase.procedure2.<a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html"
title="class in
org.apache.hadoop.hbase.procedure2">StateMachineProcedure</a></h3>
+<code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.Flow.html"
title="enum in
org.apache.hadoop.hbase.procedure2">StateMachineProcedure.Flow</a></code></li>
+</ul>
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+<li class="blockList"><a
name="nested.classes.inherited.from.class.org.apache.hadoop.hbase.procedure2.Procedure">
+<!-- -->
+</a>
+<h3>Nested classes/interfaces inherited from
class 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.LockState.html"
title="enum in
org.apache.hadoop.hbase.procedure2">Procedure.LockState</a></code></li>
+</ul>
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name="nested.classes.inherited.from.class.org.apache.hadoop.hbase.master.procedure.TableProcedureInterface">
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+</a>
+<h3>Nested classes/interfaces inherited from
interface org.apache.hadoop.hbase.master.procedure.<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/TableProcedureInterface.html"
title="interface in
org.apache.hadoop.hbase.master.procedure">TableProcedureInterface</a></h3>
+<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></li>
+</ul>
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+</ul>
+<!-- =========== FIELD SUMMARY =========== -->
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+<li class="blockList"><a name="field.summary">
+<!-- -->
+</a>
+<h3>Field Summary</h3>
+<table class="memberSummary" border="0" cellpadding="3" cellspacing="0"
summary="Field Summary table, listing fields, and an explanation">
+<caption><span>Fields</span><span class="tabEnd"> </span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Field and Description</th>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>private static
org.apache.commons.logging.Log</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a
href="../../../../../../org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#LOG">LOG</a></span></code> </td>
+</tr>
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+<ul class="blockList">
+<li class="blockList"><a
name="fields.inherited.from.class.org.apache.hadoop.hbase.procedure2.Procedure">
+<!-- -->
+</a>
+<h3>Fields inherited from class 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#NO_PROC_ID">NO_PROC_ID</a>,
<a
href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#NO_TIMEOUT">NO_TIMEOUT</a></code></li>
+</ul>
+</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"> </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/master/assignment/GCRegionProcedure.html#GCRegionProcedure--">GCRegionProcedure</a></span>()</code> </td>
+</tr>
+<tr class="rowColor">
+<td class="colOne"><code><span class="memberNameLink"><a
href="../../../../../../org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#GCRegionProcedure-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-org.apache.hadoop.hbase.HRegionInfo-">GCRegionProcedure</a></span>(<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a> env,
+ <a
href="../../../../../../org/apache/hadoop/hbase/HRegionInfo.html" title="class
in org.apache.hadoop.hbase">HRegionInfo</a> hri)</code> </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"> </span></span><span id="t2" class="tableTab"><span><a
href="javascript:show(2);">Instance Methods</a></span><span
class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a
href="javascript:show(8);">Concrete Methods</a></span><span
class="tabEnd"> </span></span></caption>
+<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 <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/assignment/GCRegionProcedure.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> env)</code>
+<div class="block">The user should override this method if they need a lock on
an Entity.</div>
+</td>
+</tr>
+<tr id="i1" class="rowColor">
+<td class="colFirst"><code>protected void</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a
href="../../../../../../org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#deserializeStateData-java.io.InputStream-">deserializeStateData</a></span>(<a
href="http://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html?is-external=true";
title="class or interface in java.io">InputStream</a> stream)</code>
+<div class="block">Called on store load to allow the user to decode the
previously serialized
+ state.</div>
+</td>
+</tr>
+<tr id="i2" class="altColor">
+<td class="colFirst"><code>protected <a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.Flow.html"
title="enum in
org.apache.hadoop.hbase.procedure2">StateMachineProcedure.Flow</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a
href="../../../../../../org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#executeFromState-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState-">executeFromState</a></span>(<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a> env,
+
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState state)</code>
+<div class="block">called to perform a single step of the specified 'state' of
the procedure</div>
+</td>
+</tr>
+<tr id="i3" class="rowColor">
+<td class="colFirst"><code>protected
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a
href="../../../../../../org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#getInitialState--">getInitialState</a></span>()</code>
+<div class="block">Return the initial state object that will be used for the
first call to executeFromState().</div>
+</td>
+</tr>
+<tr id="i4" class="altColor">
+<td class="colFirst"><code>protected
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a
href="../../../../../../org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#getState-int-">getState</a></span>(int stateId)</code>
+<div class="block">Convert an ordinal (or state id) to an Enum (or more
descriptive) state object.</div>
+</td>
+</tr>
+<tr id="i5" class="rowColor">
+<td class="colFirst"><code>protected int</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a
href="../../../../../../org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#getStateId-org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState-">getStateId</a></span>(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState state)</code>
+<div class="block">Convert the Enum (or more descriptive) state object to an
ordinal (or state id).</div>
+</td>
+</tr>
+<tr id="i6" class="altColor">
+<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/assignment/GCRegionProcedure.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="i7" class="rowColor">
+<td class="colFirst"><code>protected void</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a
href="../../../../../../org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#rollbackState-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState-">rollbackState</a></span>(<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a> env,
+
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState state)</code>
+<div class="block">called to perform the rollback of the specified state</div>
+</td>
+</tr>
+<tr id="i8" class="altColor">
+<td class="colFirst"><code>protected void</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a
href="../../../../../../org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#serializeStateData-java.io.OutputStream-">serializeStateData</a></span>(<a
href="http://docs.oracle.com/javase/8/docs/api/java/io/OutputStream.html?is-external=true";
title="class or interface in java.io">OutputStream</a> stream)</code>
+<div class="block">The user-level code of the procedure may have some state to
+ persist (e.g.</div>
+</td>
+</tr>
+</table>
+<ul class="blockList">
+<li class="blockList"><a
name="methods.inherited.from.class.org.apache.hadoop.hbase.master.procedure.AbstractStateMachineRegionProcedure">
+<!-- -->
+</a>
+<h3>Methods inherited from
class org.apache.hadoop.hbase.master.procedure.<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html"
title="class in
org.apache.hadoop.hbase.master.procedure">AbstractStateMachineRegionProcedure</a></h3>
+<code><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html#checkTableModifiable-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">checkTableModifiable</a>,
<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html#getRegion--">getRegion</a>,
<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html#getTableName--">getTableName</a>,
<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html#hasLock-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">hasLock</a>,
<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html#holdLock-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">holdLock</a>,
<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.htm
l#releaseLock-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">releaseLock</a>,
<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html#setFailure-java.lang.Throwable-">setFailure</a>,
<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html#setRegion-org.apache.hadoop.hbase.HRegionInfo-">setRegion</a>,
<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html#toStringClassDetails-java.lang.StringBuilder-">toStringClassDetails</a></code></li>
+</ul>
+<ul class="blockList">
+<li class="blockList"><a
name="methods.inherited.from.class.org.apache.hadoop.hbase.master.procedure.AbstractStateMachineTableProcedure">
+<!-- -->
+</a>
+<h3>Methods inherited from
class org.apache.hadoop.hbase.master.procedure.<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineTableProcedure.html"
title="class in
org.apache.hadoop.hbase.master.procedure">AbstractStateMachineTableProcedure</a></h3>
+<code><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineTableProcedure.html#getUser--">getUser</a>,
<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineTableProcedure.html#releaseSyncLatch--">releaseSyncLatch</a>,
<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineTableProcedure.html#setUser-org.apache.hadoop.hbase.security.User-">setUser</a></code></li>
+</ul>
+<ul class="blockList">
+<li class="blockList"><a
name="methods.inherited.from.class.org.apache.hadoop.hbase.procedure2.StateMachineProcedure">
+<!-- -->
+</a>
+<h3>Methods inherited from class org.apache.hadoop.hbase.procedure2.<a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html"
title="class in
org.apache.hadoop.hbase.procedure2">StateMachineProcedure</a></h3>
+<code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html#abort-TEnvironment-">abort</a>,
<a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html#addChildProcedure-org.apache.hadoop.hbase.procedure2.Procedure...-">addChildProcedure</a>,
<a
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<a href
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<a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html#toStringState-java.lang.StringBuilder-">toStringState</a></code></li>
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href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html"
title="class in org.apache.hadoop.hbase.procedure2">Procedure</a></h3>
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<a
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href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getParentProcId--">getParentProcId</a>,
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href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getTimeout--">getTimeout</a>,
<
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href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#getTimeoutTimestamp--">getTimeoutTimestamp</a>,
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href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#hasChildren--">hasChildren</a>,
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href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#isFinished--">isFinished</a>,
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href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#isInitializing--">isInitializing</a>,
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href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#isSuccess--">isSuccess</a>,
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href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#isWaiting--">isWaiting</a>,
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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-">s
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<a
href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setFailure-java.lang.String-java.lang.Throwable-">setFailure</a>,
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href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#setLastUpdate-long-">setLastUpdate</a>,
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ref="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#shouldWaitClientAck-TEnvironment-">shouldWaitClientAck</a>,
<a
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href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#toStringClass--">toStringClass</a>,
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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#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#wasExecuted--">wasExecuted</a></code></li>
+</ul>
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+<li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
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+<h3>Methods inherited from class java.lang.<a
href="http://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
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title="class or interface in java.lang">clone</a>, <a
href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-";
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href="http://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 org.apache.commons.logging.Log <a
href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#line.50">LOG</a></pre>
+</li>
+</ul>
+</li>
+</ul>
+<!-- ========= CONSTRUCTOR DETAIL ======== -->
+<ul class="blockList">
+<li class="blockList"><a name="constructor.detail">
+<!-- -->
+</a>
+<h3>Constructor Detail</h3>
+<a
name="GCRegionProcedure-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-org.apache.hadoop.hbase.HRegionInfo-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>GCRegionProcedure</h4>
+<pre>public <a
href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#line.52">GCRegionProcedure</a>(<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a> env,
+ <a
href="../../../../../../org/apache/hadoop/hbase/HRegionInfo.html" title="class
in org.apache.hadoop.hbase">HRegionInfo</a> hri)</pre>
+</li>
+</ul>
+<a name="GCRegionProcedure--">
+<!-- -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>GCRegionProcedure</h4>
+<pre>public <a
href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#line.56">GCRegionProcedure</a>()</pre>
+</li>
+</ul>
+</li>
+</ul>
+<!-- ============ METHOD DETAIL ========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method.detail">
+<!-- -->
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+<h3>Method Detail</h3>
+<a name="getTableOperationType--">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getTableOperationType</h4>
+<pre>public <a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/TableProcedureInterface.TableOperationType.html"
title="enum in
org.apache.hadoop.hbase.master.procedure">TableProcedureInterface.TableOperationType</a> <a
href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#line.62">getTableOperationType</a>()</pre>
+<div class="block"><span class="descfrmTypeLabel">Description copied from
interface: <code><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/TableProcedureInterface.html#getTableOperationType--">TableProcedureInterface</a></code></span></div>
+<div class="block">Given an operation type we can take decisions about what to
do with pending operations.
+ e.g. if we get a delete and we have some table operation pending (e.g. add
column)
+ we can abort those operations.</div>
+<dl>
+<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
+<dd><code><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/TableProcedureInterface.html#getTableOperationType--">getTableOperationType</a></code> in
interface <code><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/TableProcedureInterface.html"
title="interface in
org.apache.hadoop.hbase.master.procedure">TableProcedureInterface</a></code></dd>
+<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
+<dd><code><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html#getTableOperationType--">getTableOperationType</a></code> in
class <code><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html"
title="class in
org.apache.hadoop.hbase.master.procedure">AbstractStateMachineRegionProcedure</a><org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState></code></dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>the operation type that the procedure is executing.</dd>
+</dl>
+</li>
+</ul>
+<a
name="executeFromState-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>executeFromState</h4>
+<pre>protected <a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.Flow.html"
title="enum in
org.apache.hadoop.hbase.procedure2">StateMachineProcedure.Flow</a> <a
href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#line.67">executeFromState</a>(<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a> env,
+
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState state)
+ throws <a
href="../../../../../../org/apache/hadoop/hbase/procedure2/ProcedureSuspendedException.html"
title="class in
org.apache.hadoop.hbase.procedure2">ProcedureSuspendedException</a>,
+ <a
href="../../../../../../org/apache/hadoop/hbase/procedure2/ProcedureYieldException.html"
title="class in
org.apache.hadoop.hbase.procedure2">ProcedureYieldException</a>,
+ <a
href="http://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"><span class="descfrmTypeLabel">Description copied from
class: <code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html#executeFromState-TEnvironment-TState-">StateMachineProcedure</a></code></span></div>
+<div class="block">called to perform a single step of the specified 'state' of
the procedure</div>
+<dl>
+<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
+<dd><code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html#executeFromState-TEnvironment-TState-">executeFromState</a></code> in
class <code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html"
title="class in
org.apache.hadoop.hbase.procedure2">StateMachineProcedure</a><<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState></code></dd>
+<dd><code>state</code> - state to execute</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>Flow.NO_MORE_STATE if the procedure is completed,
+ Flow.HAS_MORE_STATE if there is another step.</dd>
+<dt><span class="throwsLabel">Throws:</span></dt>
+<dd><code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/ProcedureSuspendedException.html"
title="class in
org.apache.hadoop.hbase.procedure2">ProcedureSuspendedException</a></code></dd>
+<dd><code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/ProcedureYieldException.html"
title="class in
org.apache.hadoop.hbase.procedure2">ProcedureYieldException</a></code></dd>
+<dd><code><a
href="http://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>
+</dl>
+</li>
+</ul>
+<a
name="rollbackState-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>rollbackState</h4>
+<pre>protected void <a
href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#line.114">rollbackState</a>(<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a> env,
+
org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState state)
+ throws <a
href="http://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="http://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"><span class="descfrmTypeLabel">Description copied from
class: <code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html#rollbackState-TEnvironment-TState-">StateMachineProcedure</a></code></span></div>
+<div class="block">called to perform the rollback of the specified state</div>
+<dl>
+<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
+<dd><code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html#rollbackState-TEnvironment-TState-">rollbackState</a></code> in
class <code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html"
title="class in
org.apache.hadoop.hbase.procedure2">StateMachineProcedure</a><<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState></code></dd>
+<dd><code>state</code> - state to rollback</dd>
+<dt><span class="throwsLabel">Throws:</span></dt>
+<dd><code><a
href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true";
title="class or interface in java.io">IOException</a></code> - temporary
failure, the rollback will retry later</dd>
+<dd><code><a
href="http://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>
+</dl>
+</li>
+</ul>
+<a name="getState-int-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getState</h4>
+<pre>protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState <a
href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#line.119">getState</a>(int stateId)</pre>
+<div class="block"><span class="descfrmTypeLabel">Description copied from
class: <code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html#getState-int-">StateMachineProcedure</a></code></span></div>
+<div class="block">Convert an ordinal (or state id) to an Enum (or more
descriptive) state object.</div>
+<dl>
+<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
+<dd><code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html#getState-int-">getState</a></code> in
class <code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html"
title="class in
org.apache.hadoop.hbase.procedure2">StateMachineProcedure</a><<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState></code></dd>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>stateId</code> - the ordinal() of the state enum (or state id)</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>the state enum object</dd>
+</dl>
+</li>
+</ul>
+<a
name="getStateId-org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getStateId</h4>
+<pre>protected int <a
href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#line.124">getStateId</a>(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState state)</pre>
+<div class="block"><span class="descfrmTypeLabel">Description copied from
class: <code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html#getStateId-TState-">StateMachineProcedure</a></code></span></div>
+<div class="block">Convert the Enum (or more descriptive) state object to an
ordinal (or state id).</div>
+<dl>
+<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
+<dd><code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html#getStateId-TState-">getStateId</a></code> in
class <code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html"
title="class in
org.apache.hadoop.hbase.procedure2">StateMachineProcedure</a><<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState></code></dd>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>state</code> - the state enum object</dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>stateId the ordinal() of the state enum (or state id)</dd>
+</dl>
+</li>
+</ul>
+<a name="getInitialState--">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getInitialState</h4>
+<pre>protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState <a
href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#line.129">getInitialState</a>()</pre>
+<div class="block"><span class="descfrmTypeLabel">Description copied from
class: <code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html#getInitialState--">StateMachineProcedure</a></code></span></div>
+<div class="block">Return the initial state object that will be used for the
first call to executeFromState().</div>
+<dl>
+<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
+<dd><code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html#getInitialState--">getInitialState</a></code> in
class <code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/StateMachineProcedure.html"
title="class in
org.apache.hadoop.hbase.procedure2">StateMachineProcedure</a><<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a>,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState></code></dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>the initial state enum object</dd>
+</dl>
+</li>
+</ul>
+<a name="serializeStateData-java.io.OutputStream-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>serializeStateData</h4>
+<pre>protected void <a
href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#line.134">serializeStateData</a>(<a
href="http://docs.oracle.com/javase/8/docs/api/java/io/OutputStream.html?is-external=true";
title="class or interface in java.io">OutputStream</a> stream)
+ throws <a
href="http://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"><span class="descfrmTypeLabel">Description copied from
class: <code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#serializeStateData-java.io.OutputStream-">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">Overrides:</span></dt>
+<dd><code><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html#serializeStateData-java.io.OutputStream-">serializeStateData</a></code> in
class <code><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html"
title="class in
org.apache.hadoop.hbase.master.procedure">AbstractStateMachineRegionProcedure</a><org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState></code></dd>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>stream</code> - the stream that will contain the user serialized
data</dd>
+<dt><span class="throwsLabel">Throws:</span></dt>
+<dd><code><a
href="http://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="deserializeStateData-java.io.InputStream-">
+<!-- -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>deserializeStateData</h4>
+<pre>protected void <a
href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#line.144">deserializeStateData</a>(<a
href="http://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html?is-external=true";
title="class or interface in java.io">InputStream</a> stream)
+ throws <a
href="http://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"><span class="descfrmTypeLabel">Description copied from
class: <code><a
href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#deserializeStateData-java.io.InputStream-">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">Overrides:</span></dt>
+<dd><code><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html#deserializeStateData-java.io.InputStream-">deserializeStateData</a></code> in
class <code><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html"
title="class in
org.apache.hadoop.hbase.master.procedure">AbstractStateMachineRegionProcedure</a><org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState></code></dd>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>stream</code> - the stream that contains the user serialized
data</dd>
+<dt><span class="throwsLabel">Throws:</span></dt>
+<dd><code><a
href="http://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="acquireLock-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">
+<!-- -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>acquireLock</h4>
+<pre>protected <a
href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.LockState.html"
title="enum in
org.apache.hadoop.hbase.procedure2">Procedure.LockState</a> <a
href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/GCRegionProcedure.html#line.152">acquireLock</a>(<a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/MasterProcedureEnv.html"
title="class in
org.apache.hadoop.hbase.master.procedure">MasterProcedureEnv</a> env)</pre>
+<div class="block"><span class="descfrmTypeLabel">Description copied from
class: <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, and it is up to the implementor. The Procedure
+ Framework will call this method just before it 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 execute.
+
+ <p>If you need to hold the lock for the life of the Procdure -- i.e. you do
not
+ want any other Procedure interfering while this Procedure is running, see
+ <a
href="../../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html#holdLock-TEnvironment-"><code>Procedure.holdLock(Object)</code></a>.
+
+ <p>Example: in our Master we can execute request in parallel for different
tables.
+ We can create t1 and create t2 and these creates can be executed at the same
time.
+ Anything else on t1/t2 is 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></ul></div>
+<dl>
+<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
+<dd><code><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html#acquireLock-org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv-">acquireLock</a></code> in
class <code><a
href="../../../../../../org/apache/hadoop/hbase/master/procedure/AbstractStateMachineRegionProcedure.html"
title="class in
org.apache.hadoop.hbase.master.procedure">AbstractStateMachineRegionProcedure</a><org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.GCRegionState></code></dd>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>the lock state as described above.</dd>
+</dl>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<!-- ========= END OF CLASS DATA ========= -->
+<!-- ======= START OF BOTTOM NAVBAR ====== -->
+<div class="bottomNav"><a name="navbar.bottom">
+<!-- -->
+</a>
+<div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation
links">Skip navigation links</a></div>
+<a name="navbar.bottom.firstrow">
+<!-- -->
+</a>
+<ul class="navList" title="Navigation">
+<li><a href="../../../../../../overview-summary.html">Overview</a></li>
+<li><a href="package-summary.html">Package</a></li>
+<li class="navBarCell1Rev">Class</li>
+<li><a href="class-use/GCRegionProcedure.html">Use</a></li>
+<li><a href="package-tree.html">Tree</a></li>
+<li><a href="../../../../../../deprecated-list.html">Deprecated</a></li>
+<li><a href="../../../../../../index-all.html">Index</a></li>
+<li><a href="../../../../../../help-doc.html">Help</a></li>
+</ul>
+</div>
+<div class="subNav">
+<ul class="navList">
+<li><a
href="../../../../../../org/apache/hadoop/hbase/master/assignment/GCMergedRegionsProcedure.html"
title="class in org.apache.hadoop.hbase.master.assignment"><span
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+<li><a
href="../../../../../../org/apache/hadoop/hbase/master/assignment/MergeTableRegionsProcedure.html"
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class="typeNameLink">Next Class</span></a></li>
+</ul>
+<ul class="navList">
+<li><a
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+<li><a href="GCRegionProcedure.html" target="_top">No Frames</a></li>
+</ul>
+<ul class="navList" id="allclasses_navbar_bottom">
+<li><a
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+<ul class="subNavList">
+<li>Summary: </li>
+<li><a
href="#nested.classes.inherited.from.class.org.apache.hadoop.hbase.procedure2.StateMachineProcedure">Nested</a> | </li>
+<li><a href="#field.summary">Field</a> | </li>
+<li><a href="#constructor.summary">Constr</a> | </li>
+<li><a href="#method.summary">Method</a></li>
+</ul>
+<ul class="subNavList">
+<li>Detail: </li>
+<li><a href="#field.detail">Field</a> | </li>
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+<li><a href="#method.detail">Method</a></li>
+</ul>
+</div>
+<a name="skip.navbar.bottom">
+<!-- -->
+</a></div>
+<!-- ======== END OF BOTTOM NAVBAR ======= -->
+<p class="legalCopy"><small>Copyright © 2007–2017 <a
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