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| <h2 title="Class ServerRegionReplicaUtil" class="title">Class ServerRegionReplicaUtil</h2> |
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| <li><a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html" title="class in org.apache.hadoop.hbase.client">org.apache.hadoop.hbase.client.RegionReplicaUtil</a></li> |
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| <li>org.apache.hadoop.hbase.util.ServerRegionReplicaUtil</li> |
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| <pre>@InterfaceAudience.Private |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#line.47">ServerRegionReplicaUtil</a> |
| extends <a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html" title="class in org.apache.hadoop.hbase.client">RegionReplicaUtil</a></pre> |
| <div class="block">Similar to <a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html" title="class in org.apache.hadoop.hbase.client"><code>RegionReplicaUtil</code></a> but for the server side</div> |
| </li> |
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| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
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| <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 boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#DEFAULT_REGION_REPLICA_REPLICATION">DEFAULT_REGION_REPLICA_REPLICATION</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#DEFAULT_REGION_REPLICA_REPLICATION_CATALOG">DEFAULT_REGION_REPLICA_REPLICATION_CATALOG</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#DEFAULT_REGION_REPLICA_STORE_FILE_REFRESH">DEFAULT_REGION_REPLICA_STORE_FILE_REFRESH</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#DEFAULT_REGION_REPLICA_STORE_FILE_REFRESH_MEMSTORE_MULTIPLIER">DEFAULT_REGION_REPLICA_STORE_FILE_REFRESH_MEMSTORE_MULTIPLIER</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/util/ServerRegionReplicaUtil.html#LOG">LOG</a></span></code> </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/util/ServerRegionReplicaUtil.html#REGION_REPLICA_REPLICATION_CATALOG_CONF_KEY">REGION_REPLICA_REPLICATION_CATALOG_CONF_KEY</a></span></code> |
| <div class="block">Same as for <a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#REGION_REPLICA_REPLICATION_CONF_KEY"><code>REGION_REPLICA_REPLICATION_CONF_KEY</code></a> but for catalog replication.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <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/util/ServerRegionReplicaUtil.html#REGION_REPLICA_REPLICATION_CONF_KEY">REGION_REPLICA_REPLICATION_CONF_KEY</a></span></code> |
| <div class="block">Whether asynchronous WAL replication to the secondary region replicas is enabled or not.</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/util/ServerRegionReplicaUtil.html#REGION_REPLICA_REPLICATION_PEER">REGION_REPLICA_REPLICATION_PEER</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <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/util/ServerRegionReplicaUtil.html#REGION_REPLICA_STORE_FILE_REFRESH">REGION_REPLICA_STORE_FILE_REFRESH</a></span></code> |
| <div class="block">Enables or disables refreshing store files of secondary region replicas when the memory is |
| above the global memstore lower limit.</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/util/ServerRegionReplicaUtil.html#REGION_REPLICA_STORE_FILE_REFRESH_MEMSTORE_MULTIPLIER">REGION_REPLICA_STORE_FILE_REFRESH_MEMSTORE_MULTIPLIER</a></span></code> |
| <div class="block">The multiplier to use when we want to refresh a secondary region instead of flushing a primary |
| region.</div> |
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| <h3>Fields inherited from class org.apache.hadoop.hbase.client.<a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html" title="class in org.apache.hadoop.hbase.client">RegionReplicaUtil</a></h3> |
| <code><a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html#DEFAULT_REGION_REPLICA_WAIT_FOR_PRIMARY_FLUSH">DEFAULT_REGION_REPLICA_WAIT_FOR_PRIMARY_FLUSH</a>, <a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html#REGION_REPLICA_WAIT_FOR_PRIMARY_FLUSH_CONF_KEY">REGION_REPLICA_WAIT_FOR_PRIMARY_FLUSH_CONF_KEY</a></code></li> |
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| <th class="colOne" scope="col">Constructor and Description</th> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#ServerRegionReplicaUtil--">ServerRegionReplicaUtil</a></span>()</code> </td> |
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| <h3>Method Summary</h3> |
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| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static 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> |
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| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static <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/util/ServerRegionReplicaUtil.html#getRegionInfoForFs-org.apache.hadoop.hbase.client.RegionInfo-">getRegionInfoForFs</a></span>(<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> regionInfo)</code> |
| <div class="block">Returns the regionInfo object to use for interacting with the file system.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#getRegionReplicaStoreFileRefreshMultiplier-org.apache.hadoop.conf.Configuration-">getRegionReplicaStoreFileRefreshMultiplier</a></span>(org.apache.hadoop.conf.Configuration conf)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileInfo.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileInfo</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#getStoreFileInfo-org.apache.hadoop.conf.Configuration-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.client.RegionInfo-java.lang.String-org.apache.hadoop.fs.Path-">getStoreFileInfo</a></span>(org.apache.hadoop.conf.Configuration conf, |
| org.apache.hadoop.fs.FileSystem fs, |
| <a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> regionInfo, |
| <a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> regionInfoForFs, |
| <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> familyName, |
| org.apache.hadoop.fs.Path path)</code> |
| <div class="block">Returns a StoreFileInfo from the given FileStatus.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#isMetaRegionReplicaReplicationEnabled-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.TableName-">isMetaRegionReplicaReplicationEnabled</a></span>(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> tn)</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#isReadOnly-org.apache.hadoop.hbase.regionserver.HRegion-">isReadOnly</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/HRegion.html" title="class in org.apache.hadoop.hbase.regionserver">HRegion</a> region)</code> |
| <div class="block">Returns whether this region replica can accept writes.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>private static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#isRegionReplicaReplicationEnabled-org.apache.hadoop.conf.Configuration-">isRegionReplicaReplicationEnabled</a></span>(org.apache.hadoop.conf.Configuration conf)</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#isRegionReplicaReplicationEnabled-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.TableName-">isRegionReplicaReplicationEnabled</a></span>(org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> tn)</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#isRegionReplicaStoreFileRefreshEnabled-org.apache.hadoop.conf.Configuration-">isRegionReplicaStoreFileRefreshEnabled</a></span>(org.apache.hadoop.conf.Configuration conf)</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#isRegionReplicaWaitForPrimaryFlushEnabled-org.apache.hadoop.conf.Configuration-">isRegionReplicaWaitForPrimaryFlushEnabled</a></span>(org.apache.hadoop.conf.Configuration conf)</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#setupRegionReplicaReplication-org.apache.hadoop.hbase.master.MasterServices-">setupRegionReplicaReplication</a></span>(<a href="../../../../../org/apache/hadoop/hbase/master/MasterServices.html" title="interface in org.apache.hadoop.hbase.master">MasterServices</a> services)</code> |
| <div class="block">Create replication peer for replicating user-space Region Read Replicas.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#shouldReplayRecoveredEdits-org.apache.hadoop.hbase.regionserver.HRegion-">shouldReplayRecoveredEdits</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/HRegion.html" title="class in org.apache.hadoop.hbase.regionserver">HRegion</a> region)</code> |
| <div class="block">Returns whether to replay the recovered edits to flush the results.</div> |
| </td> |
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| <h3>Methods inherited from class org.apache.hadoop.hbase.client.<a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html" title="class in org.apache.hadoop.hbase.client">RegionReplicaUtil</a></h3> |
| <code><a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html#addReplicas-java.util.List-int-int-">addReplicas</a>, <a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html#getRegionInfoForDefaultReplica-org.apache.hadoop.hbase.client.RegionInfo-">getRegionInfoForDefaultReplica</a>, <a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html#getRegionInfoForReplica-org.apache.hadoop.hbase.client.RegionInfo-int-">getRegionInfoForReplica</a>, <a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html#isDefaultReplica-int-">isDefaultReplica</a>, <a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html#isDefaultReplica-org.apache.hadoop.hbase.client.RegionInfo-">isDefaultReplica</a>, <a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html#isReplicasForSameRegion-org.apache.hadoop.hbase.client.RegionInfo-org.apache.hadoop.hbase.client.RegionInfo-">isReplicasForSameRegion</a>, <a href="../../../../../org/apache/hadoop/hbase/client/RegionReplicaUtil.html#removeNonDefaultRegions-java.util.Collection-">removeNonDefaultRegions</a></code></li> |
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| <pre>private static final org.slf4j.Logger <a href="../../../../../src-html/org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#line.49">LOG</a></pre> |
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| <div class="block">Whether asynchronous WAL replication to the secondary region replicas is enabled or not. |
| If this is enabled, a replication peer named "region_replica_replication" will be created |
| which will tail the logs and replicate the mutatations to region replicas for tables that |
| have region replication > 1. If this is enabled once, disabling this replication also |
| requires disabling the replication peer using shell or <a href="../../../../../org/apache/hadoop/hbase/client/Admin.html" title="interface in org.apache.hadoop.hbase.client"><code>Admin</code></a> java class. |
| Replication to secondary region replicas works over standard inter-cluster replication.·</div> |
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| <div class="block">Same as for <a href="../../../../../org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#REGION_REPLICA_REPLICATION_CONF_KEY"><code>REGION_REPLICA_REPLICATION_CONF_KEY</code></a> but for catalog replication.</div> |
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| <div class="block">Enables or disables refreshing store files of secondary region replicas when the memory is |
| above the global memstore lower limit. Refreshing the store files means that we will do a file |
| list of the primary regions store files, and pick up new files. Also depending on the store |
| files, we can drop some memstore contents which will free up memory.</div> |
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| <div class="block">The multiplier to use when we want to refresh a secondary region instead of flushing a primary |
| region. Default value assumes that for doing the file refresh, the biggest secondary should be |
| 4 times bigger than the biggest primary.</div> |
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| <pre>public static <a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#line.95">getRegionInfoForFs</a>(<a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> regionInfo)</pre> |
| <div class="block">Returns the regionInfo object to use for interacting with the file system.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>An RegionInfo object to interact with the filesystem</dd> |
| </dl> |
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| <div class="block">Returns whether this region replica can accept writes.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>region</code> - the HRegion object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>whether the replica is read only</dd> |
| </dl> |
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| <div class="block">Returns whether to replay the recovered edits to flush the results. |
| Currently secondary region replicas do not replay the edits, since it would |
| cause flushes which might affect the primary region. Primary regions even opened |
| in read only mode should replay the edits.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>region</code> - the HRegion object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>whether recovered edits should be replayed.</dd> |
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| <pre>public static <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileInfo.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileInfo</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.html#line.130">getStoreFileInfo</a>(org.apache.hadoop.conf.Configuration conf, |
| org.apache.hadoop.fs.FileSystem fs, |
| <a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> regionInfo, |
| <a href="../../../../../org/apache/hadoop/hbase/client/RegionInfo.html" title="interface in org.apache.hadoop.hbase.client">RegionInfo</a> regionInfoForFs, |
| <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> familyName, |
| org.apache.hadoop.fs.Path path) |
| 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">Returns a StoreFileInfo from the given FileStatus. Secondary replicas refer to the |
| files of the primary region, so an HFileLink is used to construct the StoreFileInfo. This |
| way ensures that the secondary will be able to continue reading the store files even if |
| they are moved to archive after compaction</div> |
| <dl> |
| <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> |
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| 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>, |
| <a href="../../../../../org/apache/hadoop/hbase/replication/ReplicationException.html" title="class in org.apache.hadoop.hbase.replication">ReplicationException</a></pre> |
| <div class="block">Create replication peer for replicating user-space Region Read Replicas. |
| This methods should only be called at master side.</div> |
| <dl> |
| <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> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/replication/ReplicationException.html" title="class in org.apache.hadoop.hbase.replication">ReplicationException</a></code></dd> |
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| <a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> tn)</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>True if Region Read Replica is enabled for <code>tn</code> (whether hbase:meta or |
| user-space tables).</dd> |
| </dl> |
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| <dd>True if Region Read Replica is enabled for user-space tables.</dd> |
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| <a href="../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a> tn)</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>True if hbase:meta Region Read Replica is enabled.</dd> |
| </dl> |
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| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>True if wait for primary to flush is enabled for user-space tables.</dd> |
| </dl> |
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| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>True if we are to refresh user-space hfiles in Region Read Replicas.</dd> |
| </dl> |
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