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From Ashwin Chandra Putta <ashwinchand...@gmail.com>
Subject Re: HDFS Exception Help
Date Tue, 06 Oct 2015 02:47:27 GMT
Tim and I explored the DFSClient code and it seems like the client got an
ack for a sequence number that has already received acknowledgement. After
this warning, DFSClient should continue writing to the next datanode in the
pipeline without any problem.

Regards,
Ashwin.

On Mon, Oct 5, 2015 at 12:56 PM, Timothy Farkas <tim@datatorrent.com> wrote:

> Hello All,
>
> I am seeing this exception in one of my applications, and I am wondering if
> there are any explanations for why this is happening or if there are any
> solutions? Any help would be appreciated.
>
> 2015-10-02 11:43:23,951 WARN org.apache.hadoop.hdfs.DFSClient:
> DFSOutputStream ResponseProcessor exception  for block
> BP-601397002-192.168.2.121-1441635558284:blk_1082166710_8426265
> java.util.NoSuchElementException
> at java.util.LinkedList.getFirst(LinkedList.java:242)
> at
>
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer$ResponseProcessor.run(DFSOutputStream.java:925)
>
> Thanks,
> Tim
>



-- 

Regards,
Ashwin.

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