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| <div class="subTitle">org.apache.hadoop.hbase.regionserver.snapshot</div> |
| <h2 title="Class RegionServerSnapshotManager" class="title">Class RegionServerSnapshotManager</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/procedure/ProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure">org.apache.hadoop.hbase.procedure.ProcedureManager</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../../org/apache/hadoop/hbase/procedure/RegionServerProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure">org.apache.hadoop.hbase.procedure.RegionServerProcedureManager</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.hadoop.hbase.regionserver.snapshot.RegionServerSnapshotManager</li> |
| </ul> |
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| <br> |
| <pre>@InterfaceAudience.LimitedPrivate(value="Configuration") |
| @InterfaceStability.Unstable |
| public class <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.77">RegionServerSnapshotManager</a> |
| extends <a href="../../../../../../org/apache/hadoop/hbase/procedure/RegionServerProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure">RegionServerProcedureManager</a></pre> |
| <div class="block">This manager class handles the work dealing with snapshots for a <a href="../../../../../../org/apache/hadoop/hbase/regionserver/HRegionServer.html" title="class in org.apache.hadoop.hbase.regionserver"><code>HRegionServer</code></a>. |
| <p> |
| This provides the mechanism necessary to kick off a online snapshot specific |
| <a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html" title="class in org.apache.hadoop.hbase.procedure"><code>Subprocedure</code></a> that is responsible for the regions being served by this region server. |
| If any failures occur with the subprocedure, the RegionSeverSnapshotManager's subprocedure |
| handler, <a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureMember.html" title="class in org.apache.hadoop.hbase.procedure"><code>ProcedureMember</code></a>, notifies the master's ProcedureCoordinator to abort all |
| others. |
| <p> |
| On startup, requires <a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#start--"><code>start()</code></a> to be called. |
| <p> |
| On shutdown, requires <a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#stop-boolean-"><code>stop(boolean)</code></a> to be called</div> |
| </li> |
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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>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.SnapshotSubprocedureBuilder.html" title="class in org.apache.hadoop.hbase.regionserver.snapshot">RegionServerSnapshotManager.SnapshotSubprocedureBuilder</a></span></code> |
| <div class="block">Build the actual snapshot runner that will do all the 'hard' work</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.SnapshotSubprocedurePool.html" title="class in org.apache.hadoop.hbase.regionserver.snapshot">RegionServerSnapshotManager.SnapshotSubprocedurePool</a></span></code> |
| <div class="block">We use the SnapshotSubprocedurePool, a class specific thread pool instead of |
| <a href="../../../../../../org/apache/hadoop/hbase/executor/ExecutorService.html" title="class in org.apache.hadoop.hbase.executor"><code>ExecutorService</code></a>.</div> |
| </td> |
| </tr> |
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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 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/regionserver/snapshot/RegionServerSnapshotManager.html#CONCURENT_SNAPSHOT_TASKS_KEY">CONCURENT_SNAPSHOT_TASKS_KEY</a></span></code> |
| <div class="block">Maximum number of snapshot region tasks that can run concurrently</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#DEFAULT_CONCURRENT_SNAPSHOT_TASKS">DEFAULT_CONCURRENT_SNAPSHOT_TASKS</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/regionserver/snapshot/RegionServerSnapshotManager.html#LOG">LOG</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureMember.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureMember</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#member">member</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureMemberRpcs.html" title="interface in org.apache.hadoop.hbase.procedure">ProcedureMemberRpcs</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#memberRpcs">memberRpcs</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/regionserver/RegionServerServices.html" title="interface in org.apache.hadoop.hbase.regionserver">RegionServerServices</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#rss">rss</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#SNAPSHOT_REQUEST_THREADS_DEFAULT">SNAPSHOT_REQUEST_THREADS_DEFAULT</a></span></code> |
| <div class="block"># of threads for snapshotting regions on the rs.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <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/regionserver/snapshot/RegionServerSnapshotManager.html#SNAPSHOT_REQUEST_THREADS_KEY">SNAPSHOT_REQUEST_THREADS_KEY</a></span></code> |
| <div class="block">Conf key for number of request threads to start snapshots on regionservers</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#SNAPSHOT_REQUEST_WAKE_MILLIS_DEFAULT">SNAPSHOT_REQUEST_WAKE_MILLIS_DEFAULT</a></span></code> |
| <div class="block">Default amount of time to check for errors while regions finish snapshotting</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <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/regionserver/snapshot/RegionServerSnapshotManager.html#SNAPSHOT_REQUEST_WAKE_MILLIS_KEY">SNAPSHOT_REQUEST_WAKE_MILLIS_KEY</a></span></code> |
| <div class="block">Conf key for millis between checks to see if snapshot completed or if there are errors</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#SNAPSHOT_TIMEOUT_MILLIS_DEFAULT">SNAPSHOT_TIMEOUT_MILLIS_DEFAULT</a></span></code> |
| <div class="block">Keep threads alive in request pool for max of 300 seconds</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <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/regionserver/snapshot/RegionServerSnapshotManager.html#SNAPSHOT_TIMEOUT_MILLIS_KEY">SNAPSHOT_TIMEOUT_MILLIS_KEY</a></span></code> |
| <div class="block">Conf key for max time to keep threads in snapshot request pool waiting</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/regionserver/snapshot/RegionServerSnapshotManager.html#RegionServerSnapshotManager--">RegionServerSnapshotManager</a></span>()</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#RegionServerSnapshotManager-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.regionserver.HRegionServer-org.apache.hadoop.hbase.procedure.ProcedureMemberRpcs-org.apache.hadoop.hbase.procedure.ProcedureMember-">RegionServerSnapshotManager</a></span>(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/HRegionServer.html" title="class in org.apache.hadoop.hbase.regionserver">HRegionServer</a> parent, |
| <a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureMemberRpcs.html" title="interface in org.apache.hadoop.hbase.procedure">ProcedureMemberRpcs</a> memberRpc, |
| <a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureMember.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureMember</a> procMember)</code> |
| <div class="block">Exposed for testing.</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"> </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><a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html" title="class in org.apache.hadoop.hbase.procedure">Subprocedure</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#buildSubprocedure-org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription-">buildSubprocedure</a></span>(org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription snapshot)</code> |
| <div class="block">If in a running state, creates the specified subprocedure for handling an online snapshot.</div> |
| </td> |
| </tr> |
| <tr id="i1" 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/regionserver/snapshot/RegionServerSnapshotManager.html#getProcedureSignature--">getProcedureSignature</a></span>()</code> |
| <div class="block">Return the unique signature of the procedure.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HRegion.html" title="class in org.apache.hadoop.hbase.regionserver">HRegion</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#getRegionsToSnapshot-org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription-">getRegionsToSnapshot</a></span>(org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription snapshot)</code> |
| <div class="block">Determine if the snapshot should be handled on this server |
| |
| NOTE: This is racy -- the master expects a list of regionservers.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#initialize-org.apache.hadoop.hbase.regionserver.RegionServerServices-">initialize</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/RegionServerServices.html" title="interface in org.apache.hadoop.hbase.regionserver">RegionServerServices</a> rss)</code> |
| <div class="block">Create a default snapshot handler - uses a zookeeper based member controller.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#start--">start</a></span>()</code> |
| <div class="block">Start accepting snapshot requests.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#stop-boolean-">stop</a></span>(boolean force)</code> |
| <div class="block">Close <tt>this</tt> and all running snapshot tasks</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.org.apache.hadoop.hbase.procedure.ProcedureManager"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.hadoop.hbase.procedure.<a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureManager</a></h3> |
| <code><a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureManager.html#equals-java.lang.Object-">equals</a>, <a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureManager.html#hashCode--">hashCode</a></code></li> |
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| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
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| <li class="blockList"><a name="field.detail"> |
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| <h3>Field Detail</h3> |
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| <pre>private static final org.slf4j.Logger <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.78">LOG</a></pre> |
| </li> |
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| <h4>CONCURENT_SNAPSHOT_TASKS_KEY</h4> |
| <pre>private static final <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> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.81">CONCURENT_SNAPSHOT_TASKS_KEY</a></pre> |
| <div class="block">Maximum number of snapshot region tasks that can run concurrently</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hbase.regionserver.snapshot.RegionServerSnapshotManager.CONCURENT_SNAPSHOT_TASKS_KEY">Constant Field Values</a></dd> |
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| <div class="block">Conf key for number of request threads to start snapshots on regionservers</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hbase.regionserver.snapshot.RegionServerSnapshotManager.SNAPSHOT_REQUEST_THREADS_KEY">Constant Field Values</a></dd> |
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| <pre>public static final int <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.87">SNAPSHOT_REQUEST_THREADS_DEFAULT</a></pre> |
| <div class="block"># of threads for snapshotting regions on the rs.</div> |
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| <dt><span class="seeLabel">See Also:</span></dt> |
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| <div class="block">Conf key for max time to keep threads in snapshot request pool waiting</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hbase.regionserver.snapshot.RegionServerSnapshotManager.SNAPSHOT_TIMEOUT_MILLIS_KEY">Constant Field Values</a></dd> |
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| <pre>public static final long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.92">SNAPSHOT_TIMEOUT_MILLIS_DEFAULT</a></pre> |
| <div class="block">Keep threads alive in request pool for max of 300 seconds</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hbase.regionserver.snapshot.RegionServerSnapshotManager.SNAPSHOT_TIMEOUT_MILLIS_DEFAULT">Constant Field Values</a></dd> |
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| <h4>SNAPSHOT_REQUEST_WAKE_MILLIS_KEY</h4> |
| <pre>public static final <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> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.95">SNAPSHOT_REQUEST_WAKE_MILLIS_KEY</a></pre> |
| <div class="block">Conf key for millis between checks to see if snapshot completed or if there are errors</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hbase.regionserver.snapshot.RegionServerSnapshotManager.SNAPSHOT_REQUEST_WAKE_MILLIS_KEY">Constant Field Values</a></dd> |
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| <pre>private static final long <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.97">SNAPSHOT_REQUEST_WAKE_MILLIS_DEFAULT</a></pre> |
| <div class="block">Default amount of time to check for errors while regions finish snapshotting</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hbase.regionserver.snapshot.RegionServerSnapshotManager.SNAPSHOT_REQUEST_WAKE_MILLIS_DEFAULT">Constant Field Values</a></dd> |
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| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/regionserver/RegionServerServices.html" title="interface in org.apache.hadoop.hbase.regionserver">RegionServerServices</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.99">rss</a></pre> |
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| <h4>memberRpcs</h4> |
| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureMemberRpcs.html" title="interface in org.apache.hadoop.hbase.procedure">ProcedureMemberRpcs</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.100">memberRpcs</a></pre> |
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| <h4>member</h4> |
| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureMember.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureMember</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.101">member</a></pre> |
| </li> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.detail"> |
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| </a> |
| <h3>Constructor Detail</h3> |
| <a name="RegionServerSnapshotManager-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.regionserver.HRegionServer-org.apache.hadoop.hbase.procedure.ProcedureMemberRpcs-org.apache.hadoop.hbase.procedure.ProcedureMember-"> |
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| <h4>RegionServerSnapshotManager</h4> |
| <pre><a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.110">RegionServerSnapshotManager</a>(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../../org/apache/hadoop/hbase/regionserver/HRegionServer.html" title="class in org.apache.hadoop.hbase.regionserver">HRegionServer</a> parent, |
| <a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureMemberRpcs.html" title="interface in org.apache.hadoop.hbase.procedure">ProcedureMemberRpcs</a> memberRpc, |
| <a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureMember.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureMember</a> procMember)</pre> |
| <div class="block">Exposed for testing.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>conf</code> - HBase configuration.</dd> |
| <dd><code>parent</code> - parent running the snapshot handler</dd> |
| <dd><code>memberRpc</code> - use specified memberRpc instance</dd> |
| <dd><code>procMember</code> - use specified ProcedureMember</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="RegionServerSnapshotManager--"> |
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| <h4>RegionServerSnapshotManager</h4> |
| <pre>public <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.117">RegionServerSnapshotManager</a>()</pre> |
| </li> |
| </ul> |
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| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.detail"> |
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| </a> |
| <h3>Method Detail</h3> |
| <a name="start--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>start</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.123">start</a>()</pre> |
| <div class="block">Start accepting snapshot requests.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/procedure/RegionServerProcedureManager.html#start--">start</a></code> in class <code><a href="../../../../../../org/apache/hadoop/hbase/procedure/RegionServerProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure">RegionServerProcedureManager</a></code></dd> |
| </dl> |
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| <h4>stop</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.134">stop</a>(boolean force) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Close <tt>this</tt> and all running snapshot tasks</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/procedure/RegionServerProcedureManager.html#stop-boolean-">stop</a></code> in class <code><a href="../../../../../../org/apache/hadoop/hbase/procedure/RegionServerProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure">RegionServerProcedureManager</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>force</code> - forcefully stop all running tasks</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="buildSubprocedure-org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>buildSubprocedure</h4> |
| <pre>public <a href="../../../../../../org/apache/hadoop/hbase/procedure/Subprocedure.html" title="class in org.apache.hadoop.hbase.procedure">Subprocedure</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.155">buildSubprocedure</a>(org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription snapshot)</pre> |
| <div class="block">If in a running state, creates the specified subprocedure for handling an online snapshot. |
| |
| Because this gets the local list of regions to snapshot and not the set the master had, |
| there is a possibility of a race where regions may be missed. This detected by the master in |
| the snapshot verification step.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>snapshot</code> - </dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Subprocedure to submit to the ProcedureMember.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getRegionsToSnapshot-org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription-"> |
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| </a> |
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| <h4>getRegionsToSnapshot</h4> |
| <pre>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HRegion.html" title="class in org.apache.hadoop.hbase.regionserver">HRegion</a>> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.225">getRegionsToSnapshot</a>(org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription snapshot) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Determine if the snapshot should be handled on this server |
| |
| NOTE: This is racy -- the master expects a list of regionservers. |
| This means if a region moves somewhere between the calls we'll miss some regions. |
| For example, a region move during a snapshot could result in a region to be skipped or done |
| twice. This is manageable because the <a href="../../../../../../org/apache/hadoop/hbase/master/snapshot/MasterSnapshotVerifier.html" title="class in org.apache.hadoop.hbase.master.snapshot"><code>MasterSnapshotVerifier</code></a> will double check the |
| region lists after the online portion of the snapshot completes and will explicitly fail the |
| snapshot.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>snapshot</code> - </dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the list of online regions. Empty list is returned if no regions are responsible for |
| the given snapshot.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="initialize-org.apache.hadoop.hbase.regionserver.RegionServerServices-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>initialize</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.393">initialize</a>(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/RegionServerServices.html" title="interface in org.apache.hadoop.hbase.regionserver">RegionServerServices</a> rss) |
| throws org.apache.zookeeper.KeeperException</pre> |
| <div class="block">Create a default snapshot handler - uses a zookeeper based member controller.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/procedure/RegionServerProcedureManager.html#initialize-org.apache.hadoop.hbase.regionserver.RegionServerServices-">initialize</a></code> in class <code><a href="../../../../../../org/apache/hadoop/hbase/procedure/RegionServerProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure">RegionServerProcedureManager</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rss</code> - region server running the handler</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>org.apache.zookeeper.KeeperException</code> - if the zookeeper cluster cannot be reached</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getProcedureSignature--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>getProcedureSignature</h4> |
| <pre>public <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> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/snapshot/RegionServerSnapshotManager.html#line.411">getProcedureSignature</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureManager.html#getProcedureSignature--">ProcedureManager</a></code></span></div> |
| <div class="block">Return the unique signature of the procedure. This signature uniquely |
| identifies the procedure. By default, this signature is the string used in |
| the procedure controller (i.e., the root ZK node name for the procedure)</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureManager.html#getProcedureSignature--">getProcedureSignature</a></code> in class <code><a href="../../../../../../org/apache/hadoop/hbase/procedure/ProcedureManager.html" title="class in org.apache.hadoop.hbase.procedure">ProcedureManager</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
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