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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-1058) Prevent runaway compactions
Date Sun, 12 Apr 2009 02:05:14 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell updated HBASE-1058:
----------------------------------

    Attachment: hbase-1058-v2.patch

Spoke too soon. In MemcacheFlusher, flushcache comes before compactionRequested. Came across
a situation during testing where the regionserver waited indefinitely to flush because no
compaction was scheduled.  Attached as v2 is a patch that does the same thing, but also triggers
compaction. Testing this now.

> Prevent runaway compactions
> ---------------------------
>
>                 Key: HBASE-1058
>                 URL: https://issues.apache.org/jira/browse/HBASE-1058
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>            Priority: Blocker
>             Fix For: 0.20.0
>
>         Attachments: hbase-1058-v2.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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