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https://issues.apache.org/jira/browse/HBASE-5699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13265167#comment-13265167
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Jean-Daniel Cryans commented on HBASE-5699:
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bq. Intuitively it seems like the number of WAL's that are used should be
related to the number of spindles available to hbase.
I disagree, considering that most of the deployments have rep=3 you're using
three spindles not one. The multiplying effect could generate a lot of disk
seeks since the WALs are competing like that (plus flushing, compacting, etc).
> Run with > 1 WAL in HRegionServer
> ---------------------------------
>
> Key: HBASE-5699
> URL: https://issues.apache.org/jira/browse/HBASE-5699
> Project: HBase
> Issue Type: Improvement
> Reporter: binlijin
> Assignee: Li Pi
>
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