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https://issues.apache.org/jira/browse/HADOOP-6762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12875193#action_12875193
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sam rash commented on HADOOP-6762:
----------------------------------
maybe you can elaborate on where you are adding the interrupt() call as trying
what I understand you to have suggested didn't make the test pass.
Is this what you mean for sendParam:
{code}
public void sendParam(Call call) {
if (shouldCloseConnection.get()) {
return;
}
DataOutputBuffer d=null;
try {
synchronized (this.out) {
if (LOG.isDebugEnabled())
LOG.debug(getName() + " sending #" + call.id);
//for serializing the
//data to be written
d = new DataOutputBuffer();
d.writeInt(call.id);
call.param.write(d);
byte[] data = d.getData();
int dataLength = d.getLength();
out.writeInt(dataLength); //first put the data length
out.write(data, 0, dataLength);//write the data
out.flush();
}
} catch(IOException e) {
Thread.currentThread().interrupt(); //add this--should have no effect
on ClosedByInterrupt as it sets the current thread to be interrupted already
markClosed(e);
} finally {
//the buffer is just an in-memory buffer, but it is still polite to
// close early
IOUtils.closeStream(d);
}
}
{code}
> exception while doing RPC I/O closes channel
> --------------------------------------------
>
> Key: HADOOP-6762
> URL: https://issues.apache.org/jira/browse/HADOOP-6762
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 0.20.2
> Reporter: sam rash
> Assignee: sam rash
> Attachments: hadoop-6762-1.txt, hadoop-6762-2.txt, hadoop-6762-3.txt,
> hadoop-6762-4.txt
>
>
> If a single process creates two unique fileSystems to the same NN using
> FileSystem.newInstance(), and one of them issues a close(), the leasechecker
> thread is interrupted. This interrupt races with the rpc namenode.renew()
> and can cause a ClosedByInterruptException. This closes the underlying
> channel and the other filesystem, sharing the connection will get errors.
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