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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12485) Maintain SeqId monotonically increasing
Date Thu, 11 Dec 2014 03:22:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14242066#comment-14242066
] 

Hudson commented on HBASE-12485:
--------------------------------

SUCCESS: Integrated in HBase-TRUNK #5907 (See [https://builds.apache.org/job/HBase-TRUNK/5907/])
HBASE-12485 Maintain SeqId monotonically increasing (jeffreyz: rev f67162547d2891ba7e08ad912336f78fae24322b)
* hbase-server/src/test/java/org/apache/hadoop/hbase/master/handler/TestTableDeleteFamilyHandler.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALReplay.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/util/FSUtils.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestWALSplit.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/backup/TestHFileArchiving.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestDistributedLogSplitting.java


> Maintain SeqId monotonically increasing
> ---------------------------------------
>
>                 Key: HBASE-12485
>                 URL: https://issues.apache.org/jira/browse/HBASE-12485
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Jeffrey Zhong
>            Assignee: Jeffrey Zhong
>             Fix For: 1.0.0, 2.0.0
>
>         Attachments: HBASE-12485-v2.patch, HBASE-12485-v2.patch, HBASE-12485.patch
>
>
> We added FLUSH, REGION CLOSE events into WAL, for each those events the region SeqId
is bumped. 
> The issue comes from region close operation. Because when opening a region, we use flushed
SeqId from store files while after store flush during region close we still write COMMIT_FLUSH,
REGION_CLOSE events etc which respectively bump up SeqId. Therefore, the region opening SeqId
is lower than it should be.  



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