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From "Yu Li (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15536) Make AsyncFSWAL as our default WAL
Date Fri, 29 Apr 2016 03:04:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15263454#comment-15263454

Yu Li commented on HBASE-15536:

+1 (non-binding) to make AsyncFSWAL as default in 2.0

[~Apache9] Any plan to backport the great work here to branch-1? We're planning to use AsyncFSWAL
online by July (well, I'd say the perf number is really attractive. :-D) and will start the
work soon but duplicated work is no good, so please let me know if you already got anything
in progress for the backport work. Thanks. :-)

OTOH, it would be great if there could be some perf number on multiwal in comparison to single-wal
with AsyncFSWAL. Recently we observed performance downgrade when using multiwal (with FSHLog)
in branch-1 and now trying hard to locate the root cause (will open another JIRA to tell the
details), so I'm a little bit concerned about the multiwal part.

> Make AsyncFSWAL as our default WAL
> ----------------------------------
>                 Key: HBASE-15536
>                 URL: https://issues.apache.org/jira/browse/HBASE-15536
>             Project: HBase
>          Issue Type: Sub-task
>    Affects Versions: 2.0.0
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>             Fix For: 2.0.0
>         Attachments: HBASE-15536-v1.patch, HBASE-15536-v2.patch, HBASE-15536.patch
> As it should be predicated on passing basic cluster ITBLL

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