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From "nkeywal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7213) Have HLog files for .META. edits only
Date Fri, 30 Nov 2012 10:32:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13507250#comment-13507250
] 

nkeywal commented on HBASE-7213:
--------------------------------

To me, there are some stuff that are nice to have in multiwal but very useful here:
- it's better to have only one table in the wal with ".meta."
- it's would be great to be able to configure the replication factor for this wal
- having a separate wal for meta should be the only option (it could make sense short term
to have it as an option for safety, but it would be temporary)
- there is no real split of the .meta. wal (at least conceptually: all regions ends up on
the same server..). There is some room for (premature?) optimization there.

                
> Have HLog files for .META. edits only
> -------------------------------------
>
>                 Key: HBASE-7213
>                 URL: https://issues.apache.org/jira/browse/HBASE-7213
>             Project: HBase
>          Issue Type: Improvement
>          Components: master, regionserver
>            Reporter: Devaraj Das
>            Assignee: Devaraj Das
>         Attachments: 7213-in-progress.patch
>
>
> Over on HBASE-6774, there is a discussion on separating out the edits for .META. regions
from the other regions' edits w.r.t where the edits are written. This jira is to track an
implementation of that.

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