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From "Benjamin Coverston (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-3181) Compaction fails to occur
Date Tue, 13 Sep 2011 17:51:10 GMT


Benjamin Coverston commented on CASSANDRA-3181:

>From his repro I was able to get compactions going again with a simple write/flush.

>From Brandon, he's not sure how compactions stopped. There are only two scenarios where
I see compactions stopping like this with the tiered compaction strategy:

# the server was restarted
# a compaction failed unexpectedly

The fact that there were no errors in the log makes #2 unlikely. I'm pretty sure that we're
just looking at a problem where a server restarts and there is no more activity triggering
a flush.

> Compaction fails to occur
> -------------------------
>                 Key: CASSANDRA-3181
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.0.0
>            Reporter: Brandon Williams
>            Assignee: Benjamin Coverston
>             Fix For: 1.0.0
> Compaction just stops running at some point.  To repro, insert like 20M rows with a 1G
heap and you'll get around 1k sstables.  Restarting doesn't help, you have to invoke a major
to get anything to happen.

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