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.Jevdokimov@adform.com

Phone: +370 5 212 3063. Fax: +370 5 261 0453

J. Jasinskio 16C, LT-01112 Vilnius, Lithuania

 

 

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