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From "Yang Yang (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-3269) possible early deletion of commit logs
Date Tue, 04 Oct 2011 17:01:35 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-3269?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yang Yang updated CASSANDRA-3269:
---------------------------------

    Summary: possible early deletion of commit logs  (was: accumulated 100GB of commit logs)
    
> possible early deletion of commit logs
> --------------------------------------
>
>                 Key: CASSANDRA-3269
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3269
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 1.0.0
>            Reporter: Yang Yang
>            Assignee: Sylvain Lebresne
>            Priority: Critical
>             Fix For: 1.0.0
>
>         Attachments: 3269-v2.txt, 3269-v3.txt, 3269.patch
>
>
> I ran my cluster for about 2 days. the cluster has 2 nodes. I restarted one box several
times, and the other one was always running. the one always running ended up accumulating
100GB of commit logs.
> this is 1.0.0 code from about Sept 15 in github. I kept the original setting for 
> #commitlog_total_space_in_mb: 4096
> i.e. commented out
> here is some sample of the output:
> -rw-r--r-- 1 yyang yyang 134217857 2011-09-28 03:51 CommitLog-1317181834810.log
> -rw-r--r-- 1 yyang yyang 134217869 2011-09-28 03:50 CommitLog-1317181764105.log
> -rw-r--r-- 1 yyang yyang 134217783 2011-09-28 03:49 CommitLog-1317181694633.log
> -rw-r--r-- 1 yyang yyang 134217750 2011-09-28 02:39 CommitLog-1317176955102.log
> yyang@ip-10-71-21-46:/mnt/cass/log/cassandra$ ls -lt /mnt/cass/lib//cassandra/commitlog/|wc
-l
> 727
> yyang@ip-10-71-21-46:/mnt/cass/log/cassandra$ du -s /mnt/cass/lib/cassandra/commitlog/

> 95095316        /mnt/cass/lib/cassandra/commitlog/

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