[jira] [Commented] (HBASE-15131) Turn on multi-WAL by default

["Sean Busbey (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-15131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15107862#comment-15107862 ] 

Sean Busbey commented on HBASE-15131:
-------------------------------------

I'd like to see some perf numbers on a shipped version of HBase before we make this the default.  IIRC, the benchmarks from HBASE-14457 used a custom backport on top of 0.98.

I have some numbers from a small test cluster, but I'm not sure how useful such a small scale is.

> 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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