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From "Jeremiah Jordan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-7511) Commit log grows infinitely after truncate
Date Wed, 30 Jul 2014 16:20:39 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-7511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14079442#comment-14079442
] 

Jeremiah Jordan commented on CASSANDRA-7511:
--------------------------------------------

While I agree flushing is expensive, truncate is expensive.  I think it is a less invasive
change to a stable branch, considering auto snapshot=false is a very rare case, so its better
to just not special case it in places we don't need to.

> Commit log grows infinitely after truncate
> ------------------------------------------
>
>                 Key: CASSANDRA-7511
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7511
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: CentOS 6.5, Oracle Java 7u60, C* 2.0.6, 2.0.9, including earlier
1.0.* versions.
>            Reporter: Viktor Jevdokimov
>            Assignee: Benedict
>            Priority: Minor
>              Labels: commitlog
>             Fix For: 2.0.10
>
>         Attachments: 7511-2.0-v2.txt, 7511.txt
>
>
> Commit log grows infinitely after CF truncate operation via cassandra-cli, regardless
CF receives writes or not thereafter.
> CF's could be non-CQL Standard and Super column type. Creation of snapshots after truncate
is turned off.
> Commit log may start grow promptly, may start grow later, on a few only or on all nodes
at once.
> Nothing special in the system log. No idea how to reproduce.
> After rolling restart commit logs are cleared and back to normal. Just annoying to do
rolling restart after each truncate.



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