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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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Review request for hbase and Ryan Rawson.


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.


  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


Unit tests.



> 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
> 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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