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From "HBase Review Board (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2670) MemStore should retain multiple KVs with the same timestamp when memstoreTS differs
Date Mon, 14 Jun 2010 23:36:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12878798#action_12878798
] 

HBase Review Board commented on HBASE-2670:
-------------------------------------------

Message from: "Todd Lipcon" <todd@cloudera.com>

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This is an automatically generated e-mail. To reply, visit:
http://review.hbase.org/r/180/
-----------------------------------------------------------

Review request for hbase and Ryan Rawson.


Summary
-------

This changes the memstore comparator, improves the atomicity tests, and also fixes ICV to
continue to have the right behavior even with the comparator change.


This addresses bug hbase-2670.
    http://issues.apache.org/jira/browse/hbase-2670


Diffs
-----

  src/main/java/org/apache/hadoop/hbase/KeyValue.java 71284cf 
  src/main/java/org/apache/hadoop/hbase/regionserver/Store.java 2a0dcee 
  src/test/java/org/apache/hadoop/hbase/MultithreadedTestUtil.java 7c062d7 
  src/test/java/org/apache/hadoop/hbase/TestAcidGuarantees.java 75f3c8b 
  src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStore.java 9833d76 
  src/test/java/org/apache/hadoop/hbase/regionserver/TestStoreScanner.java 0566af7 

Diff: http://review.hbase.org/r/180/diff


Testing
-------

Unit tests.


Thanks,

Todd




> MemStore should retain multiple KVs with the same timestamp when memstoreTS differs
> -----------------------------------------------------------------------------------
>
>                 Key: HBASE-2670
>                 URL: https://issues.apache.org/jira/browse/HBASE-2670
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.20.5, 0.21.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Blocker
>         Attachments: hbase-2670.txt
>
>
> There appears to be a bug in HBASE-2248 as committed to trunk. See following failing
test:
> http://hudson.zones.apache.org/hudson/job/HBase-TRUNK/1296/testReport/junit/org.apache.hadoop.hbase/TestAcidGuarantees/testAtomicity/
> Think this is the same bug we saw early on in 2248 in the 0.20 branch, looks like the
fix didn't make it over.

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