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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15537) Add multi WAL support for AsyncFSWAL
Date Tue, 05 Apr 2016 04:03:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15225647#comment-15225647

stack commented on HBASE-15537:

bq. Or could you further clarify your concern if I misunderstood the question stack?

Would be cool if NN spread replicas over the cluster. Would like to see dump of DNs chosen
when in multiWAL set up to check for overlaps. If we have an existing WAL pipeline, can we
pass the DN participants as excluded when NN goes to make up the next pipeline?

Trying to ensure writes get spread about the cluster or at least have insight on how well
stuff is being spread about when multiwal setup.

Thanks lads.

> Add multi WAL support for AsyncFSWAL
> ------------------------------------
>                 Key: HBASE-15537
>                 URL: https://issues.apache.org/jira/browse/HBASE-15537
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>             Fix For: 2.0.0
>         Attachments: HBASE-15537-v3.patch, HBASE-15537-v4.patch, HBASE-15537.patch, HBASE-15537_v2.patch
> The multi WAL should not be bound with {{FSHLog}}.

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