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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: RequestResponseStage Assertion Error
Date Mon, 09 May 2011 13:57:29 GMT
Fixed since 0.7.4. You should upgrade.
https://issues.apache.org/jira/browse/CASSANDRA-2282

On Sun, May 8, 2011 at 2:37 PM, Eric tamme <etamme@gmail.com> wrote:
> I have a 4 node ring that was  setup with tokens a,b,c,d using NTS and
> 2 nodes in each of 2 datacenters with a replication of DC1:1, DC2:1.
> I was getting uneven replica placement so I did a drop keyspace,
> followed by a nodetool move to DC1 having tokens (a,b) and DC2 having
> tokens (a+1,b+1) , then I removed the old data directory and recreated
> the keyspace.
>
> This has resolved my uneven replication, but now on one of my nodes I
> consistently get these errors.
>
> ERROR [RequestResponseStage:1] 2011-05-08 20:52:28,824
> DebuggableThreadPoolExecutor.java (line 103) Error in
> ThreadPoolExecutor
> java.lang.AssertionError
>        at org.apache.cassandra.service.ReadCallback.response(ReadCallback.java:127)
>        at org.apache.cassandra.net.ResponseVerbHandler.doVerb(ResponseVerbHandler.java:49)
>        at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:72)
>        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
>        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
>        at java.lang.Thread.run(Thread.java:636)
>
> I dont know if i ... shutdown the node in the middle of one of the
> earlier operations or what.  It seems to insert data fine, and my
> distribution is very even.
>
> What is this error, what is causing it, and how do i fix it?
>
> Thanks
> -Eric
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support
http://www.datastax.com

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