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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1413) fall back to filesystem block size default if hbase.regionserver.hlog.blocksize is not specified
Date Tue, 12 May 2009 23:56:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12708691#action_12708691
] 

stack commented on HBASE-1413:
------------------------------

I've been playing in here Andrew.  I think we should remove this from the hbase-default.xml
too:

{code}
  <property>
    <name>hbase.regionserver.hlog.blocksize</name>
    <value>1048576</value>
    <description>Block size for HLog files. To minimize potential data loss,
    the size should be (avg key length) * (avg value length) * flushlogentries.
    Default 1MB.
    </description>
  </property>
{code}

Its looking like the original assumption that we'd recover up to the last written block if
dfs.support.append was set to true in hadoop doesn't hold.  Let me test more to be sure.

> fall back to filesystem block size default if hbase.regionserver.hlog.blocksize is not
specified
> ------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-1413
>                 URL: https://issues.apache.org/jira/browse/HBASE-1413
>             Project: Hadoop HBase
>          Issue Type: Task
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>            Priority: Minor
>             Fix For: 0.19.2, 0.20.0
>
>         Attachments: hbase-1413.patch
>
>
> Fall back to filesystem block size default if hbase.regionserver.hlog.blocksize is not
specified.

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