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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Is get_key_range used internally by Cassandra
Date Tue, 03 Nov 2009 03:24:59 GMT
The TThreadPoolServer stuff means this is coming from thrift (i.e., a client)

On Mon, Nov 2, 2009 at 9:13 PM, Ramzi Rabah <rrabah@playdom.com> wrote:
> Hello all,
>
> I am seeing this exception in 4.1 Cassandra:
> ERROR [pool-1-thread-64] 2009-11-02 20:24:32,606 Cassandra.java (line
> 800) Internal error processing get_key_range
> java.lang.RuntimeException: java.util.concurrent.TimeoutException:
> Operation timed out.
>        at org.apache.cassandra.service.StorageProxy.getKeyRange(StorageProxy.java:513)
>        at org.apache.cassandra.service.CassandraServer.get_key_range(CassandraServer.java:598)
>        at org.apache.cassandra.service.Cassandra$Processor$get_key_range.process(Cassandra.java:794)
>        at org.apache.cassandra.service.Cassandra$Processor.process(Cassandra.java:627)
>        at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:253)
>        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)
> Caused by: java.util.concurrent.TimeoutException: Operation timed out.
>        at org.apache.cassandra.net.AsyncResult.get(AsyncResult.java:97)
>        at org.apache.cassandra.service.StorageProxy.getKeyRange(StorageProxy.java:509)
>        ... 7 more
>
> in the cassandra logs. This is probably related to
> https://issues.apache.org/jira/browse/CASSANDRA-507 because I have too
> many consecutive deletes.
>
> The weird thing is that none of my clients are calling get_key_range
> on the cassandra servers, so this exception baffles me. Why would I be
> seeing these exceptions then? Does cassandra internally make any calls
> to get_key_range?
>
> Thanks
> Ray
>

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