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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: NotSerializableException of FutureTask
Date Wed, 20 Apr 2011 15:42:25 GMT
You must be using an old Cassandra and/or nodetool; current nodetool calls
forceBlockingFlush which does not try to return a Future over JMX.

On Wed, Apr 20, 2011 at 9:38 AM, Desimpel, Ignace
<Ignace.Desimpel@nuance.com> wrote:
> Using own JMX java code and when using the NodeTool I get the following
> exception when calling the forceFlush function.
>
> But it seems that the flushing itself is started although the exception
> occurred.
>
> Any idea?
>
> (running jdk 1.6, 64 bits)
>
>
>
> Ignace
>
>
>
> 2011-04-20 16:23:45 INFO  ColumnFamilyStore - Enqueuing flush of
> Memtable-ReverseIntegerValues@75939304(2274472 bytes, 48892 operations)
>
> 2011-04-20 16:23:45 INFO  Memtable - Writing
> Memtable-ReverseIntegerValues@75939304(2274472 bytes, 48892 operations)
>
> java.rmi.UnmarshalException: error unmarshalling return; nested exception
> is:
>
>       java.io.WriteAbortedException: writing aborted;
> java.io.NotSerializableException: java.util.concurrent.FutureTask
>
>       at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:173)
>
>       at com.sun.jmx.remote.internal.PRef.invoke(Unknown Source)
>
>       at javax.management.remote.rmi.RMIConnectionImpl_Stub.invoke(Unknown
> Source)
>
>       at
> javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection.invoke(RMIConnector.java:993)
>
>       at
> javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:288)
>
>       at $Proxy7.forceFlush(Unknown Source)
>
>       at
> be.landc.services.search.server.db.indexsearch.store.cassandra.CassandraStore$CassNodeProbe.doRepairAll(CassandraStore.java:160)
>
>       at
> be.landc.services.search.server.db.indexsearch.store.cassandra.CassandraStore$CassNodeProbe.run(CassandraStore.java:141)
>
> Caused by: java.io.WriteAbortedException: writing aborted;
> java.io.NotSerializableException: java.util.concurrent.FutureTask
>
>       at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1332)
>
>       at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
>
>       at sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:306)
>
>       at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:155)
>
>       ... 7 more
>
> Caused by: java.io.NotSerializableException: java.util.concurrent.FutureTask
>
>       at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1164)
>
>       at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330)
>
>       at sun.rmi.server.UnicastRef.marshalValue(UnicastRef.java:274)
>
>       at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:315)
>
>       at sun.rmi.transport.Transport$1.run(Transport.java:159)
>
>       at java.security.AccessController.doPrivileged(Native Method)
>
>       at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
>
>       at
> sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
>
>       at
> sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
>
>       at
> sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
>
>       at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>
>       at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>
>       at java.lang.Thread.run(Thread.java:662)
>
> 2011-04-20 16:23:45 INFO  SearchServer - ==>>> Starting flush for column
> family : SearchSpace / ForwardLongValues
>
> 2011-04-20 16:23:45 INFO  ColumnFamilyStore - Enqueuing flush of
> Memtable-ForwardLongValues@710396564(26780468 bytes, 623958 operations)



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

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