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From Sasha Dolgy <sdo...@gmail.com>
Subject Re: Error messages after rolling updating cassandra from 0.7.0 to 0.7.2
Date Tue, 05 Apr 2011 13:55:53 GMT
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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