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https://issues.apache.org/jira/browse/CASSANDRA-2327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13006978#comment-13006978
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Jonathan Ellis commented on CASSANDRA-2327:
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Re-opened CASSANDRA-1954 to make the double-checked locking improvement to 0.7.
We shouldn't make more-invasive changes than that in a stable release series.
> Table.flusherLock is static final.. remove static.
> --------------------------------------------------
>
> Key: CASSANDRA-2327
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2327
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.7.4, 0.7.5
> Environment: JVM
> Reporter: Vijay
> Assignee: Vijay
> Priority: Minor
> Fix For: 0.7.5
>
>
> I see read and write latency spike when the system tables are
> flushing(according to opscentral)....
> Only reason which i can come-up with is probably because of the
> Table.flusherLock is static final... i think it should not be static because
> the flush is per keyspace and this lock will lock all the read operations
> because one table is going through a flush.
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