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From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17021) Use RingBuffer to reduce the contention in AsyncFSWAL
Date Tue, 08 Nov 2016 06:05:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15646627#comment-15646627

Duo Zhang commented on HBASE-17021:

[~stack] [~ram_krish] As this patch could fix the contention and unexpected wal roll, let's
commit it first?

I will do some other changes to see if I can make AsyncFSWAL run faster for a single node
HDFS. For me, the WALPE is OK but in PE AsyncFSWAL is much slower.


> Use RingBuffer to reduce the contention in AsyncFSWAL
> -----------------------------------------------------
>                 Key: HBASE-17021
>                 URL: https://issues.apache.org/jira/browse/HBASE-17021
>             Project: HBase
>          Issue Type: Sub-task
>          Components: wal
>    Affects Versions: 2.0.0
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>             Fix For: 2.0.0
>         Attachments: AsyncWAL_disruptor_7.patch, HBASE-17021-v1.patch, HBASE-17021-v2.patch,
> The WALPE result in HBASE-16890 shows that with disruptor's RingBuffer we can get a better

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