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https://issues.apache.org/jira/browse/HBASE-15131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15107923#comment-15107923
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Yu Li commented on HBASE-15131:
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bq. IIRC, the benchmarks from HBASE-14457 used a custom backport on top of 0.98.
You are right [~busbey]. But recently we're preparing to upgrade our cluster to
1.1.2 and have just done a comparison test between 0.98.12 and 1.1.2 with 4
WALs, the result shows a matchable performance, JFYI.
And [~eclark] may have more experience of using multiple WAL in facebook.
[~eclark] could you share with us? Many thanks :-)
> Turn on multi-WAL by default
> ----------------------------
>
> Key: HBASE-15131
> URL: https://issues.apache.org/jira/browse/HBASE-15131
> Project: HBase
> Issue Type: New Feature
> Components: wal
> Reporter: Enis Soztutar
> Fix For: 2.0.0, 1.3.0
>
>
> Something to discuss for 2.0 or even 1.3 or 1.4. Should we turn on multi-WAL
> by default now that it has seen some production use.
> Most of the known issues has been fixed I believe for replication, metrics
> etc. See HBASE-14457.
> Using bounded provider with default 4 (assuming 12 disks). Should we also
> look at the number of disks from datanode dirs and auto-configure?
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