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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1058) Prevent runaway compactions
Date Tue, 14 Apr 2009 14:37:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12698788#action_12698788

Jean-Daniel Cryans commented on HBASE-1058:

bq. Its a coarse leash on our tendency to run away regards number of store files; Its a coarse
leash on our tendency to run away regards number of store files

I agree, but IMO it's already a nice fix wrt the current situation.

bq. On v4, is one minute enough Andrew to let a major compaction of many files complete? 

In my setup it can take up to 3 minutes for a compaction of 4 files. Maybe we can keep it
at 1 min but reset the CompactionLimitThread to 2?

> Prevent runaway compactions
> ---------------------------
>                 Key: HBASE-1058
>                 URL: https://issues.apache.org/jira/browse/HBASE-1058
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: Andrew Purtell
>            Priority: Blocker
>             Fix For: 0.20.0
>         Attachments: hbase-1058-v2.patch, hbase-1058-v4.patch, hbase-1058.patch
> A rabid upload will easily outrun our compaction ability dropping flushes faster than
we can compact them up.  Fix.

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