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From "Lars Hofhansl (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5108) ICV puts memstore before writing WAL first -- by default; make the default be 'correct' and let better perf be optional
Date Fri, 30 Dec 2011 06:07:30 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13177570#comment-13177570
] 

Lars Hofhansl commented on HBASE-5108:
--------------------------------------

As discussed in HBASE-4583, this will make ICV significantly slower, unless writeToWal is
set to false.
                
> ICV puts memstore before writing WAL first -- by default; make the default be 'correct'
and let better perf be optional
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-5108
>                 URL: https://issues.apache.org/jira/browse/HBASE-5108
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>            Priority: Critical
>
> See this thread up on the list and Lars' note on the end: http://search-hadoop.com/m/Y6xTRp6sxq1/%2522Help+regarding+RowLock%2522&subj=Help+regarding+RowLock
> I thought it was just ICV that did the memstore put first.  This issue is about making
it so the described behavior is optional and that the default out of the box goes for correctness
-- i.e. write WAL first and then memstore.

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