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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7201) Convert HLog / HFile metadata content to PB
Date Wed, 28 Nov 2012 20:31:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13505874#comment-13505874

stack commented on HBASE-7201:

Redid the attached patch as a removal of HbaseMapWritable over in HBASE-7232.  Would like
to get that in as subtask on this issue.

I looked at what else is involved converting HFile.  There is an awkward meta block functionality
that takes 'Writable' which is a little exotic but is used by the bloom filter stuff.  Its
awkward.  I could convert to Message but not sure how to make it backward compatible just
> Convert HLog / HFile metadata content to PB
> -------------------------------------------
>                 Key: HBASE-7201
>                 URL: https://issues.apache.org/jira/browse/HBASE-7201
>             Project: HBase
>          Issue Type: Sub-task
>          Components: HFile, Protobufs, wal
>            Reporter: Enis Soztutar
>            Priority: Blocker
>             Fix For: 0.96.0
>         Attachments: 7201.txt
> Some of the remaining discussions for PB conversions: 
>  - Convert the HFile/HLog metadata to PB.
>  - WALEdit, HLogKey should be converted? We don't want to repeat the PBMagic, and the
PB overhead can be high, but this is needed for replication?
>  - We said no to converting KV.
> These should not block 0.96. 

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