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From Kazuo YAGI <ky...@zynga.co.jp>
Subject Re: Error messages after rolling updating cassandra from 0.7.0 to 0.7.2
Date Mon, 28 Mar 2011 02:19:23 GMT
I really hank you for your information.
I'll try to upgrade 0.7.4 and run scrub.

(11/03/25 22:39), Jonathan Ellis wrote:
> from NEWS.txt:
>
> Upgrading
> ---------
>      - 0.7.1 and 0.7.2 shipped with a bug that caused incorrect row-level
>        bloom filters to be generated when compacting sstables generated
>        with earlier versions.  This would manifest in IOExceptions during
>        column name-based queries.  0.7.3 provides "nodetool scrub" to
>        rebuild sstables with correct bloom filters, with no data lost.
>        (If your cluster was never on 0.7.0 or earlier, you don't have to
>        worry about this.)  Note that nodetool scrub will snapshot your
>        data files before rebuilding, just in case.
>
> Solution: upgrade to 0.7.4, run scrub
>
> 2011/3/25 Kazuo YAGI<kyagi@zynga.co.jp>:
>> Hi everyone,
>>
>> I'm running 10 cassandra nodes in total and updated 5 nodes
>> from 0.7.0 to 0.7.2 one by one like below.
>>
>> # sudo /etc/init.d/cassandra stop
>> # sudo yum update cassandra-0.7.2-4
>> # sudo /etc/init.d/cassandra start
>>
>> After updating, those 5 updated nodes keep outputting error messages to
>> /var/lib/cassandra/log/system.log every exactly 5 minutes.
>>
>> Do you have any idea about this error message? Thanks for your support.
>>
>> /var/lib/cassandra/log/system.log
>> ------
>> ERROR [Thread-45] 2011-03-23 21:21:29,125 AbstractCassandraDaemon.java (line 114)
Fatal exception in thread Thread[Thread-45,5,main]
>> java.io.IOError: java.io.EOFException
>>         at org.apache.cassandra.net.IncomingTcpConnection.run(IncomingTcpConnection.java:73)
>> Caused by: java.io.EOFException
>>         at java.io.DataInputStream.readInt(DataInputStream.java:375)
>>         at org.apache.cassandra.net.IncomingTcpConnection.run(IncomingTcpConnection.java:61)
>> ERROR [Thread-51] 2011-03-23 21:26:29,227 AbstractCassandraDaemon.java (line 114)
Fatal exception in thread Thread[Thread-51,5,main]
>> java.io.IOError: java.io.EOFException
>>         at org.apache.cassandra.net.IncomingTcpConnection.run(IncomingTcpConnection.java:73)
>> Caused by: java.io.EOFException
>>         at java.io.DataInputStream.readInt(DataInputStream.java:375)
>>         at org.apache.cassandra.net.IncomingTcpConnection.run(IncomingTcpConnection.java:61)
>> ------
>>
>> Best,
>> Kazuo YAGI
>>
>
>
>


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