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From "Cheng Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-4618) too small flushed sstable(less than 20M) because the wrong liveRatio
Date Wed, 05 Sep 2012 06:47:09 GMT
Cheng Zhang created CASSANDRA-4618:
--------------------------------------

             Summary: too small flushed sstable(less than 20M) because the wrong liveRatio
                 Key: CASSANDRA-4618
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4618
             Project: Cassandra
          Issue Type: Bug
          Components: Core
    Affects Versions: 1.0.10
         Environment: cassandra 1.0.10 deploy on ssd
            Reporter: Cheng Zhang


After my cluster run some time, I find that there are too many small sstable files flushed
from memtables, they are about 20M.I trace the system.log and find the record as below:
 WARN [MemoryMeter:1] 2012-09-04 16:04:50,392 Memtable.java (line 181) setting live ratio
to maximum of 64 instead of Infinity

and after that, the live ratio is never changed, so after that, the memtables are flushed
when they are not big enough.

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