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From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-19344) improve asyncWAL by using Independent thread for netty #IO in FanOutOneBlockAsyncDFSOutput
Date Thu, 30 Nov 2017 14:05:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-19344?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Duo Zhang updated HBASE-19344:
------------------------------
    Attachment: HBASE-19344-v1.patch

Fix the failing UTs, and also the checkstyle and javadoc issues.

Also remove the Span object in FSWALEntry as it is not used any more. Please see HBAE-18895
for more details about tracing.

> improve asyncWAL by using Independent thread for netty #IO in FanOutOneBlockAsyncDFSOutput

> -------------------------------------------------------------------------------------------
>
>                 Key: HBASE-19344
>                 URL: https://issues.apache.org/jira/browse/HBASE-19344
>             Project: HBase
>          Issue Type: Sub-task
>          Components: wal
>    Affects Versions: 2.0.0-beta-1
>            Reporter: Chance Li
>            Assignee: Duo Zhang
>             Fix For: 2.0.0
>
>         Attachments: HBASE-19344-branch-ycsb-1.png, HBASE-19344-branch.ycsb.png, HBASE-19344-branch.ycsb.png,
HBASE-19344-branch2.patch, HBASE-19344-branch2.patch.2.POC, HBASE-19344-v1.patch, HBASE-19344.patch,
wal-1-test-result.png, wal-8-test-result.png, ycsb_result_apache20_async_wal.pdf
>
>
> The logic now is that the netty #IO thread and asyncWal's thread are the same one.
> Improvement proposal:
> 1, Split into two.
> 2, All multiWal share the netty #IO thread pool. 



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