long commitlog syncs can cause write pauses
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                 Key: CASSANDRA-668
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-668
             Project: Cassandra
          Issue Type: Bug
            Reporter: Jonathan Ellis
            Assignee: Jonathan Ellis
            Priority: Minor
             Fix For: 0.5, 0.9


on a heavily loaded system (deliberately exacerbated by running the bonnie++ 
i/o benchmarking tool at the same time as cassandra -- which might not be too 
far off from the environment you would see on some VPS hosts), we're seeing CL 
sync times of 1-5s, causing write pauses.

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