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| <div class="subTitle">org.apache.hadoop.hbase.master.assignment</div> |
| <h2 title="Class RegionStateNode" class="title">Class RegionStateNode</h2> |
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| <li>org.apache.hadoop.hbase.master.assignment.RegionStateNode</li> |
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| <dt>All Implemented Interfaces:</dt> |
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| <br> |
| <pre>@InterfaceAudience.Private |
| public class <a href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#line.68">RegionStateNode</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> |
| implements <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a><<a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html" title="class in org.apache.hadoop.hbase.master.assignment">RegionStateNode</a>></pre> |
| <div class="block">Current Region State. Most fields are synchronized with meta region, i.e, we will update meta |
| immediately after we modify this RegionStateNode, and usually under the lock. The only exception |
| is <a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#lastHost"><code>lastHost</code></a>, which should not be used for critical condition. |
| <p/> |
| Typically, the only way to modify this class is through <a href="../../../../../../org/apache/hadoop/hbase/master/assignment/TransitRegionStateProcedure.html" title="class in org.apache.hadoop.hbase.master.assignment"><code>TransitRegionStateProcedure</code></a>, and |
| we will record the TRSP along with this RegionStateNode to make sure that there could at most one |
| TRSP. For other operations, such as SCP, we will first get the lock, and then try to schedule a |
| TRSP. If there is already one, then the solution will be different: |
| <ul> |
| <li>For SCP, we will update the region state in meta to tell the TRSP to retry.</li> |
| <li>For DisableTableProcedure, as we have the xlock, we can make sure that the TRSP has not been |
| executed yet, so just unset it and attach a new one. The original one will quit immediately when |
| executing.</li> |
| <li>For split/merge, we will fail immediately as there is no actual operations yet so no |
| harm.</li> |
| <li>For EnableTableProcedure/TruncateTableProcedure, we can make sure that there will be no TRSP |
| attached with the RSNs.</li> |
| <li>For other procedures, you'd better use ReopenTableRegionsProcedure. The RTRP will take care |
| of lots of corner cases when reopening regions.</li> |
| </ul> |
| <p/> |
| Several fields are declared with <code>volatile</code>, which means you are free to get it without |
| lock, but usually you should not use these fields without locking for critical condition, as it |
| will be easily to introduce inconsistency. For example, you are free to dump the status and show |
| it on web without locking, but if you want to change the state of the RegionStateNode by checking |
| the current state, you'd better have the lock...</div> |
| </li> |
| </ul> |
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| <h3>Nested Class Summary</h3> |
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| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.AssignmentProcedureEvent.html" title="class in org.apache.hadoop.hbase.master.assignment">RegionStateNode.AssignmentProcedureEvent</a></span></code> </td> |
| </tr> |
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| <!-- =========== FIELD SUMMARY =========== --> |
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| <h3>Field Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <caption><span>Fields</span><span class="tabEnd"> </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 <a href="../../../../../../org/apache/hadoop/hbase/procedure2/ProcedureEvent.html" title="class in org.apache.hadoop.hbase.procedure2">ProcedureEvent</a><?></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#event">event</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#lastHost">lastHost</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#lastUpdate">lastUpdate</a></span></code> |
| <div class="block">Updated whenever a call to <a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#setRegionLocation-org.apache.hadoop.hbase.ServerName-"><code>setRegionLocation(ServerName)</code></a> or |
| <a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#setState-org.apache.hadoop.hbase.master.RegionState.State-org.apache.hadoop.hbase.master.RegionState.State...-"><code>setState(RegionState.State, RegionState.State...)</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/locks/Lock.html?is-external=true" title="class or interface in java.util.concurrent.locks">Lock</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#lock">lock</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#LOG">LOG</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#openSeqNum">openSeqNum</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/master/assignment/TransitRegionStateProcedure.html" title="class in org.apache.hadoop.hbase.master.assignment">TransitRegionStateProcedure</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#procedure">procedure</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <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> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#regionInfo">regionInfo</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#regionLocation">regionLocation</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a><<a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>,<a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html" title="class in org.apache.hadoop.hbase.master.assignment">RegionStateNode</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#ritMap">ritMap</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/master/RegionState.State.html" title="enum in org.apache.hadoop.hbase.master">RegionState.State</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#state">state</a></span></code> |
| <div class="block">A Region-in-Transition (RIT) moves through states.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
| <!-- --> |
| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> |
| <caption><span>Constructors</span><span class="tabEnd"> </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/RegionStateNode.html#RegionStateNode-org.apache.hadoop.hbase.client.RegionInfo-java.util.concurrent.ConcurrentMap-">RegionStateNode</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> regionInfo, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentMap</a><<a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a>,<a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html" title="class in org.apache.hadoop.hbase.master.assignment">RegionStateNode</a>> ritMap)</code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| <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>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#checkOnline--">checkOnline</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#compareTo-org.apache.hadoop.hbase.master.assignment.RegionStateNode-">compareTo</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html" title="class in org.apache.hadoop.hbase.master.assignment">RegionStateNode</a> other)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#equals-java.lang.Object-">equals</a></span>(<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> other)</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#getFormatVersion--">getFormatVersion</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#getLastHost--">getLastHost</a></span>()</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#getLastUpdate--">getLastUpdate</a></span>()</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#getOpenSeqNum--">getOpenSeqNum</a></span>()</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/TransitRegionStateProcedure.html" title="class in org.apache.hadoop.hbase.master.assignment">TransitRegionStateProcedure</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#getProcedure--">getProcedure</a></span>()</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/procedure2/ProcedureEvent.html" title="class in org.apache.hadoop.hbase.procedure2">ProcedureEvent</a><?></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#getProcedureEvent--">getProcedureEvent</a></span>()</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#getRegionInfo--">getRegionInfo</a></span>()</code> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#getRegionLocation--">getRegionLocation</a></span>()</code> </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/master/RegionState.State.html" title="enum in org.apache.hadoop.hbase.master">RegionState.State</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#getState--">getState</a></span>()</code> </td> |
| </tr> |
| <tr id="i12" 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/assignment/RegionStateNode.html#getTable--">getTable</a></span>()</code> </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#hashCode--">hashCode</a></span>()</code> </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#isInState-org.apache.hadoop.hbase.master.RegionState.State...-">isInState</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/RegionState.State.html" title="enum in org.apache.hadoop.hbase.master">RegionState.State</a>... expected)</code> |
| <div class="block">Notice that, we will return true if <code>expected</code> is empty.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#isInTransition--">isInTransition</a></span>()</code> </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#isStuck--">isStuck</a></span>()</code> </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#isSystemTable--">isSystemTable</a></span>()</code> </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#lock--">lock</a></span>()</code> </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#offline--">offline</a></span>()</code> |
| <div class="block">Put region into OFFLINE mode (set state and clear location).</div> |
| </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#setLastHost-org.apache.hadoop.hbase.ServerName-">setLastHost</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> serverName)</code> </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/assignment/RegionStateNode.html#setOpenSeqNum-long-">setOpenSeqNum</a></span>(long seqId)</code> </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/TransitRegionStateProcedure.html" title="class in org.apache.hadoop.hbase.master.assignment">TransitRegionStateProcedure</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#setProcedure-org.apache.hadoop.hbase.master.assignment.TransitRegionStateProcedure-">setProcedure</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/assignment/TransitRegionStateProcedure.html" title="class in org.apache.hadoop.hbase.master.assignment">TransitRegionStateProcedure</a> proc)</code> </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#setRegionLocation-org.apache.hadoop.hbase.ServerName-">setRegionLocation</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a> serverName)</code> </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#setState-org.apache.hadoop.hbase.master.RegionState.State-org.apache.hadoop.hbase.master.RegionState.State...-">setState</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/RegionState.State.html" title="enum in org.apache.hadoop.hbase.master">RegionState.State</a> update, |
| <a href="../../../../../../org/apache/hadoop/hbase/master/RegionState.State.html" title="enum in org.apache.hadoop.hbase.master">RegionState.State</a>... expected)</code> </td> |
| </tr> |
| <tr id="i25" 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/assignment/RegionStateNode.html#toDescriptiveString--">toDescriptiveString</a></span>()</code> </td> |
| </tr> |
| <tr id="i26" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/master/RegionState.html" title="class in org.apache.hadoop.hbase.master">RegionState</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#toRegionState--">toRegionState</a></span>()</code> </td> |
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| <tr id="i27" 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/assignment/RegionStateNode.html#toShortString--">toShortString</a></span>()</code> </td> |
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| <tr id="i28" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#toString--">toString</a></span>()</code> </td> |
| </tr> |
| <tr id="i29" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#transitionState-org.apache.hadoop.hbase.master.RegionState.State-org.apache.hadoop.hbase.master.RegionState.State...-">transitionState</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/RegionState.State.html" title="enum in org.apache.hadoop.hbase.master">RegionState.State</a> update, |
| <a href="../../../../../../org/apache/hadoop/hbase/master/RegionState.State.html" title="enum in org.apache.hadoop.hbase.master">RegionState.State</a>... expected)</code> |
| <div class="block">Set new <a href="../../../../../../org/apache/hadoop/hbase/master/RegionState.State.html" title="enum in org.apache.hadoop.hbase.master"><code>RegionState.State</code></a> but only if currently in <code>expected</code> State (if not, throw |
| <a href="../../../../../../org/apache/hadoop/hbase/exceptions/UnexpectedStateException.html" title="class in org.apache.hadoop.hbase.exceptions"><code>UnexpectedStateException</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i30" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#unlock--">unlock</a></span>()</code> </td> |
| </tr> |
| <tr id="i31" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#unsetProcedure-org.apache.hadoop.hbase.master.assignment.TransitRegionStateProcedure-">unsetProcedure</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/master/assignment/TransitRegionStateProcedure.html" title="class in org.apache.hadoop.hbase.master.assignment">TransitRegionStateProcedure</a> proc)</code> </td> |
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| <h4>LOG</h4> |
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| Region that is opened moves from OFFLINE => OPENING => OPENED.</div> |
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| <a href="../../../../../../org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#setState-org.apache.hadoop.hbase.master.RegionState.State-org.apache.hadoop.hbase.master.RegionState.State...-"><code>setState(RegionState.State, RegionState.State...)</code></a>.</div> |
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| <h4>setState</h4> |
| <pre>public boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#line.116">setState</a>(<a href="../../../../../../org/apache/hadoop/hbase/master/RegionState.State.html" title="enum in org.apache.hadoop.hbase.master">RegionState.State</a> update, |
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| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>update</code> - new region state this node should be assigned.</dd> |
| <dd><code>expected</code> - current state should be in this given list of expected states</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true, if current state is in expected list; otherwise false.</dd> |
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| <div class="block">Put region into OFFLINE mode (set state and clear location).</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Last recorded server deploy</dd> |
| </dl> |
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| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/master/assignment/RegionStateNode.html#line.138">transitionState</a>(<a href="../../../../../../org/apache/hadoop/hbase/master/RegionState.State.html" title="enum in org.apache.hadoop.hbase.master">RegionState.State</a> update, |
| <a href="../../../../../../org/apache/hadoop/hbase/master/RegionState.State.html" title="enum in org.apache.hadoop.hbase.master">RegionState.State</a>... expected) |
| throws <a href="../../../../../../org/apache/hadoop/hbase/exceptions/UnexpectedStateException.html" title="class in org.apache.hadoop.hbase.exceptions">UnexpectedStateException</a></pre> |
| <div class="block">Set new <a href="../../../../../../org/apache/hadoop/hbase/master/RegionState.State.html" title="enum in org.apache.hadoop.hbase.master"><code>RegionState.State</code></a> but only if currently in <code>expected</code> State (if not, throw |
| <a href="../../../../../../org/apache/hadoop/hbase/exceptions/UnexpectedStateException.html" title="class in org.apache.hadoop.hbase.exceptions"><code>UnexpectedStateException</code></a>.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/exceptions/UnexpectedStateException.html" title="class in org.apache.hadoop.hbase.exceptions">UnexpectedStateException</a></code></dd> |
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| <div class="block">Notice that, we will return true if <code>expected</code> is empty. |
| <p/> |
| This is a bit strange but we need this logic, for example, we can change the state to OPENING |
| from any state, as in SCP we will not change the state to CLOSED before opening the region.</div> |
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| <a name="setRegionLocation-org.apache.hadoop.hbase.ServerName-"> |
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