Yes, the exception is for CounterColumn on Standard column family.
Created https://issues.apache.org/jira/browse/CASSANDRA-3870
Best regards/ Pagarbiai
Viktor Jevdokimov
Senior Developer
Email: viktor.jevdoki...@adform.com
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From: aaron morton [mailto:aa...@thelastpickle.com]
Sent: Monday, February 06, 2012 21:03
To: user@cassandra.apache.org
Subject: Re: Internal error processing batch_mutate
java.util.ConcurrentModificationException
That looks like a bug. Were you writing counters ?
Can you please add it here https://issues.apache.org/jira/browse/CASSANDRA ,
include some information on the request that caused it and email the bug report
back to the list.
(note to self) I *think* the problem is the counter WritePerformer
implementations are put into the REPLICATE_ON_WRITE TP and then update the
hints on the AbstractWriteResponeHandler asynchronously. This could happen
after the write thread has move on to wait on the handlers which involves
waiting on the hints futures.
thanks
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 4/02/2012, at 4:49 AM, Viktor Jevdokimov wrote:
What may be cause of the following exception in 1.0.7 Cassandra:
ERROR [Thrift:134] 2012-02-03 15:51:02,800 Cassandra.java (line 3462) Internal
error processing batch_mutate
java.util.ConcurrentModificationException
at
java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
at java.util.AbstractList$Itr.next(AbstractList.java:343)
at
org.apache.cassandra.utils.FBUtilities.waitOnFutures(FBUtilities.java:532)
at
org.apache.cassandra.service.AbstractWriteResponseHandler.waitForHints(AbstractWriteResponseHandler.java:89)
at
org.apache.cassandra.service.AbstractWriteResponseHandler.get(AbstractWriteResponseHandler.java:58)
at
org.apache.cassandra.service.StorageProxy.mutate(StorageProxy.java:201)
at
org.apache.cassandra.thrift.CassandraServer.doInsert(CassandraServer.java:639)
at
org.apache.cassandra.thrift.CassandraServer.internal_batch_mutate(CassandraServer.java:590)
at
org.apache.cassandra.thrift.CassandraServer.batch_mutate(CassandraServer.java:598)
at
org.apache.cassandra.thrift.Cassandra$Processor$batch_mutate.process(Cassandra.java:3454)
at
org.apache.cassandra.thrift.Cassandra$Processor.process(Cassandra.java:2889)
at
org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(CustomTThreadPoolServer.java:187)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Best regards/ Pagarbiai
Viktor Jevdokimov
Senior Developer
Email: viktor.jevdoki...@adform.commailto:viktor.jevdoki...@adform.com
Phone: +370 5 212 3063. Fax: +370 5 261 0453
J. Jasinskio 16C, LT-01112 Vilnius, Lithuania
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