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https://issues.apache.org/jira/browse/HBASE-7006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13658423#comment-13658423
]
Hudson commented on HBASE-7006:
-------------------------------
Integrated in HBase-TRUNK-on-Hadoop-2.0.0 #531 (See
[https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-2.0.0/531/])
HBASE-7006 [MTTR] Improve Region Server Recovery Time - Distributed Log
Replay (Revision 1482675)
Result = FAILURE
stack :
Files :
*
/hbase/trunk/hbase-client/src/main/java/org/apache/hadoop/hbase/HRegionInfo.java
*
/hbase/trunk/hbase-client/src/main/java/org/apache/hadoop/hbase/client/Mutation.java
*
/hbase/trunk/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ServerCallable.java
*
/hbase/trunk/hbase-client/src/main/java/org/apache/hadoop/hbase/exceptions/RegionInRecoveryException.java
*
/hbase/trunk/hbase-client/src/main/java/org/apache/hadoop/hbase/replication/ReplicationZookeeper.java
*
/hbase/trunk/hbase-client/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKTable.java
*
/hbase/trunk/hbase-client/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKUtil.java
*
/hbase/trunk/hbase-client/src/main/java/org/apache/hadoop/hbase/zookeeper/ZooKeeperWatcher.java
*
/hbase/trunk/hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java
*
/hbase/trunk/hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsMasterSource.java
*
/hbase/trunk/hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerSource.java
*
/hbase/trunk/hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/regionserver/wal/MetricsEditsReplaySource.java
*
/hbase/trunk/hbase-hadoop1-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsMasterSourceImpl.java
*
/hbase/trunk/hbase-hadoop1-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerSourceImpl.java
*
/hbase/trunk/hbase-hadoop1-compat/src/main/java/org/apache/hadoop/hbase/regionserver/wal/MetricsEditsReplaySourceImpl.java
*
/hbase/trunk/hbase-hadoop1-compat/src/main/resources/META-INF/services/org.apache.hadoop.hbase.regionserver.wal.MetricsEditsReplaySource
*
/hbase/trunk/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsMasterSourceImpl.java
*
/hbase/trunk/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerSourceImpl.java
*
/hbase/trunk/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/wal/MetricsEditsReplaySourceImpl.java
*
/hbase/trunk/hbase-hadoop2-compat/src/main/resources/META-INF/services/org.apache.hadoop.hbase.regionserver.wal.MetricsEditsReplaySource
*
/hbase/trunk/hbase-protocol/src/main/java/org/apache/hadoop/hbase/protobuf/generated/AdminProtos.java
*
/hbase/trunk/hbase-protocol/src/main/java/org/apache/hadoop/hbase/protobuf/generated/HBaseProtos.java
* /hbase/trunk/hbase-protocol/src/main/protobuf/Admin.proto
* /hbase/trunk/hbase-protocol/src/main/protobuf/hbase.proto
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterFileSystem.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterServices.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MetricsMaster.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/ServerManager.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/SplitLogManager.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/MetaServerShutdownHandler.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/ServerShutdownHandler.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/LastSequenceId.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServer.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerServices.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/SplitLogWorker.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/handler/OpenRegionHandler.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogSplitter.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogUtil.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/MetricsWALEditsReplay.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/WALEdit.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/WALEditsReplaySink.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/zookeeper/RecoveringRegionWatcher.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/TestIOFencing.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestRegionServerCoprocessorExceptionWithAbort.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/MockRegionServer.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestCatalogJanitor.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestDistributedLogSplitting.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFailover.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFileSystem.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterNoCluster.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRSKilledWhenMasterInitializing.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestHLogSplit.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/util/MockRegionServerServices.java
> [MTTR] Improve Region Server Recovery Time - Distributed Log Replay
> -------------------------------------------------------------------
>
> Key: HBASE-7006
> URL: https://issues.apache.org/jira/browse/HBASE-7006
> Project: HBase
> Issue Type: New Feature
> Components: MTTR
> Reporter: stack
> Assignee: Jeffrey Zhong
> Priority: Critical
> Fix For: 0.98.0, 0.95.1
>
> Attachments: hbase-7006-combined.patch, hbase-7006-combined-v1.patch,
> hbase-7006-combined-v4.patch, hbase-7006-combined-v5.patch,
> hbase-7006-combined-v6.patch, hbase-7006-combined-v7.patch,
> hbase-7006-combined-v8.patch, hbase-7006-combined-v9.patch, LogSplitting
> Comparison.pdf,
> ProposaltoimprovelogsplittingprocessregardingtoHBASE-7006-v2.pdf
>
>
> Just saw interesting issue where a cluster went down hard and 30 nodes had
> 1700 WALs to replay. Replay took almost an hour. It looks like it could run
> faster that much of the time is spent zk'ing and nn'ing.
> Putting in 0.96 so it gets a look at least. Can always punt.
> Distributed Log Replay Description:
> After a region server fails, we firstly assign a failed region to another
> region server with recovering state marked in ZooKeeper. Then a
> SplitLogWorker directly replays edits from WAL(Write-Ahead-Log)s of the
> failed region server to the region after it's re-opened in the new location.
> When a region is in recovering state, it can also accept writes but no
> reads(including Append and Increment), region split or merge.
> The feature piggybacks on existing distributed log splitting framework and
> directly replay WAL edits to another region server instead of creating
> recovered.edits files.
> The advantages over existing log splitting recovered edits implementation:
> 1) Eliminate the steps to write and read recovered.edits files. There could
> be thousands of recovered.edits files are created and written concurrently
> during a region server recovery. Many small random writes could degrade the
> overall system performance.
> 2) Allow writes even when a region is in recovering state. It only takes
> seconds for a failed over region to accept writes again.
> The feature can be disabled by setting hbase.master.distributed.log.replay to
> false(by default is true)
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