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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-9896) Add ability to disable commitlog recycling
Date Fri, 24 Jul 2015 19:54:06 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-9896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14640995#comment-14640995
] 

Brandon Williams commented on CASSANDRA-9896:
---------------------------------------------

Working around this by setting commitlog_total_space_in_mb to be less than commitlog_segment_size_in_mb
does indeed solve this:

http://cstar.datastax.com/graph?stats=64ed8352-3237-11e5-95c3-42010af0688f&metric=op_rate&operation=1_write&smoothing=1&show_aggregates=true&xmin=0&xmax=480.26&ymin=0&ymax=27.5

(set to 512 and 1024 respectively)

> Add ability to disable commitlog recycling
> ------------------------------------------
>
>                 Key: CASSANDRA-9896
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9896
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Brandon Williams
>            Assignee: Benedict
>             Fix For: 2.1.x
>
>
> See CASSANDRA-9533 for background, specifically the graphs I linked.  Benedict suggests
this is due the commitlog recycling and I agree, so the simplest solution is to be able to
disable that.



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