Table.flusherLock is static final.. remove static.
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                 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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