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From Arya Goudarzi <agouda...@gaiaonline.com>
Subject COMMIT-LOG_WRITER Assertion Error
Date Mon, 09 Aug 2010 19:30:54 GMT
Just throwing this out there as it could be a concern. I had a cluster of 3 nodes running.
Over the weekend I updated to trunc (Aug 9th @ 2pm). Today, I came to run my daily tests and
my client kept giving me TSocket timeouts. Checking the error log of Cassandra servers, all
3 nodes had this and they all became unresponsive! Not sure how to reproduce this but a restart
of all 3 nodes fixed the issue:

ERROR [COMMIT-LOG-WRITER] 2010-08-09 11:30:27,722 CassandraDaemon.java (line 82) Uncaught
exception in thread Thread[COMMIT-LOG-WRITER,5,main]
java.lang.AssertionError
        at org.apache.cassandra.db.commitlog.CommitLogHeader$CommitLogHeaderSerializer.serialize(CommitLogHeader.java:157)
        at org.apache.cassandra.db.commitlog.CommitLogHeader.writeCommitLogHeader(CommitLogHeader.java:124)
        at org.apache.cassandra.db.commitlog.CommitLogSegment.writeHeader(CommitLogSegment.java:70)
        at org.apache.cassandra.db.commitlog.CommitLogSegment.write(CommitLogSegment.java:103)
        at org.apache.cassandra.db.commitlog.CommitLog$LogRecordAdder.run(CommitLog.java:521)
        at org.apache.cassandra.db.commitlog.PeriodicCommitLogExecutorService$1.runMayThrow(PeriodicCommitLogExecutorService.java:52)
        at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
        at java.lang.Thread.run(Thread.java:636)


-Arya

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