Ilya Shipitsin created CASSANDRA-13962:
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             Summary: should java.io.OutputStream.flush() be called on Commit 
log operations ?
                 Key: CASSANDRA-13962
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13962
             Project: Cassandra
          Issue Type: Bug
         Environment: cassandra 2.2.8
            Reporter: Ilya Shipitsin


we run high loaded cassandra cluster on 2.2.8
when we reboot node, very often we observe broken commit log, like described 
here

https://stackoverflow.com/questions/33304367/cassandra-exiting-due-to-error-while-processing-commit-log-during-initializatio

I guess, that output is not flushed upon commit log write, I mean  
java.io.OutputStream.flush()


google also say, the same issue occur to sstables (they are written in more 
rare fashion, so we did not observe that practically)


any idea why output is not flushed ? is it done in purpose ?



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