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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 Thu, 07 Apr 2011 12:15:53 GMT
Thank both of you. I'll look it up from another view including
non-cassandra processes on the servers. Just guessing Nagios or
iptables or others causes it.

Kazuo

(11/04/05 22:55), Sasha Dolgy wrote:
> I've been seeing this EOF in my system.log file occasionally as well.
> Doesn't seem to be causing harm:
>
> ERROR [Thread-22] 2011-04-05 20:37:22,562 AbstractCassandraDaemon.java
> (line 112) Fatal exception in thread Thread[Thread-22,5,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)
>
> Firewall rules prevent anything but cassandra instances accessing
> cassandra instances on port 7000 ...
>
> This is with 0.7.4
>
> -sd
>
> On Tue, Apr 5, 2011 at 3:47 PM, Jonathan Ellis<jbellis@gmail.com>  wrote:
>> Oops, I saw "EOFException" and jumped to "scrub."
>>
>> But your EOF is coming from TCP. Something (almost certainly a
>> non-cassandra process) is connecting to the internal Cassandra
>> communication port (the one that defaults to 7000) and disconnecting.
>>
>> On Mon, Apr 4, 2011 at 4:14 AM, Kazuo YAGI<kyagi@zynga.co.jp>  wrote:
>>>>> Solution: upgrade to 0.7.4, run scrub
>>>
>>> Although I upgraded all my cassandra nodes from 0.7.0 to 0.7.4 and
>>> ran nodetool scrub to all keyspaces, this EOFException error messages
>>> didn't go away. Do you have any ideas how to deal with it next?
>>>
>>> Besides, it would be really useful if I could know whether or not
>>> these error messages are ignorable, because our application has been
>>> working well before and after upgrading.
>>>
>>> Thanks,
>>> Kazuo
>


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