What version are you on ? Check the nodetool ring from each node in your cluster to check they have the same view.
Hope that helps. ----------------- Aaron Morton Freelance Cassandra Developer @aaronmorton http://www.thelastpickle.com On 9 May 2011, at 09:37, Eric tamme 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
