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From "Shantanu (Created) (JIRA)" <>
Subject [jira] [Created] (CASSANDRA-3585) Intermittent exceptions seen in cassandra 1.0.5 during Reads.
Date Wed, 07 Dec 2011 18:18:40 GMT
Intermittent exceptions seen in cassandra 1.0.5 during Reads.

                 Key: CASSANDRA-3585
             Project: Cassandra
          Issue Type: Bug
          Components: Core
    Affects Versions: 1.0.5
         Environment: RHEL 2.6.32-71.el6.x86_64.
RAM - 28GB
11 CPUs of 2.6GHz
            Reporter: Shantanu

In my test setup I have cassandra db provisioned with cassandra 0.8.7. The setup is of two
data centers. I have upgraded the cassandra to the latest version 1.0.5. I'm seeing following
exceptions in cassandra logs -

ERROR [RequestResponseStage:32] 2011-12-06 14:46:08,150 (line
133) Fatal exception in thread Thread[RequestResponseStage:32,5,main]
at org.apache.cassandra.service.AbstractRowResolver.preprocess(
at org.apache.cassandra.service.ReadCallback.response(
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(
at java.util.concurrent.ThreadPoolExecutor$
Caused by:
at org.apache.cassandra.db.ReadResponseSerializer.deserialize(
at org.apache.cassandra.db.ReadResponseSerializer.deserialize(
at org.apache.cassandra.service.AbstractRowResolver.preprocess(
... 6 more

RF is set to DC1:3,DC2:3 and I/m doing the operations with CL=Local_Quorum.
I have run nodetool scrub on all the nodes in the ring to verify if it solves the issue but
it didn't.


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