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https://issues.apache.org/jira/browse/HBASE-15536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15585289#comment-15585289
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Duo Zhang commented on HBASE-15536:
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Oh only one DN? I haven't tested this scenario before. In general, AsyncFSWAL
will have a lower latency if you write to more than 1 DN as it sends the data
to multiple DNs concurrently.
And it is interesting that WALPE and PE show different result. Will check the
checksum work you mentioned.
And I think we need to do some profiling work to see where is the hot spot.
Thanks.
> Make AsyncFSWAL as our default WAL
> ----------------------------------
>
> Key: HBASE-15536
> URL: https://issues.apache.org/jira/browse/HBASE-15536
> Project: HBase
> Issue Type: Sub-task
> Components: wal
> Affects Versions: 2.0.0
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Critical
> Fix For: 2.0.0
>
> Attachments: HBASE-15536-v1.patch, HBASE-15536-v2.patch,
> HBASE-15536-v3.patch, HBASE-15536-v4.patch, HBASE-15536-v5.patch,
> HBASE-15536.patch
>
>
> As it should be predicated on passing basic cluster ITBLL
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