hadoop-mapreduce-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Steve Lewis <lordjoe2...@gmail.com>
Subject Re: Map Rask has IO exception
Date Mon, 07 Nov 2011 16:36:46 GMT
0.202 and using that API  -

On Mon, Nov 7, 2011 at 8:27 AM, Robert Evans <evans@yahoo-inc.com> wrote:

>  What version of Hadoop are you using?
>
>
>
> On 11/5/11 11:09 AM, "Steve Lewis" <lordjoe2000@gmail.com> wrote:
>
> My job is dying during a  map task write. This happened in enough task to
> kill the job although most tasks succeeded -
>
> Any ideas as to where to start diagnosing the problem
>
>
>
> Caused by: java.lang.NullPointerException
>  at
> org.apache.hadoop.io.compress.BZip2Codec$BZip2CompressionOutputStream.write(BZip2Codec.java:200)
>  at
> org.apache.hadoop.fs.FSDataOutputStream$PositionCache.write(FSDataOutputStream.java:41)
>  at java.io.DataOutputStream.writeByte(DataOutputStream.java:136)
>  at org.apache.hadoop.io.WritableUtils.writeVLong(WritableUtils.java:263)
>  at org.apache.hadoop.io.WritableUtils.writeVInt(WritableUtils.java:243)
>  at org.apache.hadoop.mapred.IFile$Writer.close(IFile.java:126)
>  at
> org.apache.hadoop.mapred.MapTask$MapOutputBuffer.sortAndSpill(MapTask.java:1242)
>  at
> org.apache.hadoop.mapred.MapTask$MapOutputBuffer.access$1800(MapTask.java:648)
>  at
> org.apache.hadoop.mapred.MapTask$MapOutputBuffer$SpillThread.run(MapTask.java:1135)
>
>


-- 
Steven M. Lewis PhD
4221 105th Ave NE
Kirkland, WA 98033
206-384-1340 (cell)
Skype lordjoe_com

Mime
View raw message