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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8322) Re-enable hbase checksums by default
Date Sun, 26 May 2013 22:12:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13667417#comment-13667417
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Ted Yu commented on HBASE-8322:
-------------------------------

Was there performance comparison between HBase checksum for HFiles vs. hadoop checksum through
native CRC ?

There is some work pending in HBASE-8323 which enables HBase checksum through native CRC.
                
> Re-enable hbase checksums by default
> ------------------------------------
>
>                 Key: HBASE-8322
>                 URL: https://issues.apache.org/jira/browse/HBASE-8322
>             Project: HBase
>          Issue Type: Improvement
>          Components: Filesystem Integration
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: 0.98.0, 0.95.1
>
>         Attachments: hbase-8322_v1.patch
>
>
> Double checksumming issues in HBase level checksums(HBASE-5074) has been fixed in HBASE-6868.
However, that patch also disables hbase checksums by default. I think we should re-enable
it by default, and document the interaction with shortcircuit reads. 

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