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https://issues.apache.org/jira/browse/HBASE-9465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15413430#comment-15413430
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Hudson commented on HBASE-9465:
-------------------------------
FAILURE: Integrated in HBase-1.4 #344 (See
[https://builds.apache.org/job/HBase-1.4/344/])
HBASE-9465 Push entries to peer clusters serially (zhangduo: rev
441bc050b991c14c048617bc443b97f46e21b76f)
*
hbase-client/src/main/java/org/apache/hadoop/hbase/client/replication/ReplicationAdmin.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/SplitTransactionImpl.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ReplicationService.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionMergeTransactionImpl.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/HTableDescriptor.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/ReplicationSource.java
* hbase-protocol/src/main/protobuf/WAL.proto
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/cleaner/ReplicationMetaCleaner.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestAssignmentManagerOnCluster.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestMetaScanner.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/TestMetaTableAccessor.java
* hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceManager.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/RegionStateStore.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/replication/TestSerialReplication.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/MetaTableAccessor.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WAL.java
* hbase-common/src/main/resources/hbase-default.xml
*
hbase-protocol/src/main/java/org/apache/hadoop/hbase/protobuf/generated/WALProtos.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/Replication.java
> Push entries to peer clusters serially
> --------------------------------------
>
> Key: HBASE-9465
> URL: https://issues.apache.org/jira/browse/HBASE-9465
> Project: HBase
> Issue Type: New Feature
> Components: regionserver, Replication
> Affects Versions: 2.0.0, 1.4.0
> Reporter: Honghua Feng
> Assignee: Phil Yang
> Fix For: 2.0.0, 1.4.0
>
> Attachments: HBASE-9465-branch-1-v1.patch,
> HBASE-9465-branch-1-v1.patch, HBASE-9465-branch-1-v2.patch,
> HBASE-9465-branch-1-v3.patch, HBASE-9465-branch-1-v4.patch,
> HBASE-9465-branch-1-v4.patch, HBASE-9465-v1.patch, HBASE-9465-v2.patch,
> HBASE-9465-v2.patch, HBASE-9465-v3.patch, HBASE-9465-v4.patch,
> HBASE-9465-v5.patch, HBASE-9465-v6.patch, HBASE-9465-v6.patch,
> HBASE-9465-v7.patch, HBASE-9465-v7.patch, HBASE-9465.pdf
>
>
> When region-move or RS failure occurs in master cluster, the hlog entries
> that are not pushed before region-move or RS-failure will be pushed by
> original RS(for region move) or another RS which takes over the remained hlog
> of dead RS(for RS failure), and the new entries for the same region(s) will
> be pushed by the RS which now serves the region(s), but they push the hlog
> entries of a same region concurrently without coordination.
> This treatment can possibly lead to data inconsistency between master and
> peer clusters:
> 1. there are put and then delete written to master cluster
> 2. due to region-move / RS-failure, they are pushed by different
> replication-source threads to peer cluster
> 3. if delete is pushed to peer cluster before put, and flush and
> major-compact occurs in peer cluster before put is pushed to peer cluster,
> the delete is collected and the put remains in peer cluster
> In this scenario, the put remains in peer cluster, but in master cluster the
> put is masked by the delete, hence data inconsistency between master and peer
> clusters
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