*Started:* Wed Mar 14 19:49:15 PDT 2007
*Version:* 0.10.1, r495049
*Compiled:* Wed Jan 10 16:02:27 PST 2007 by cutting

Does thies version has the bug?

thanks

Liu Qingyan - Evan Liu
Engineer of Platform, Yahoo! China
-------------------------------------
Backyard: liuqingy
Tel: +86-10-65985498
-------------------------------------
Devoted, initiative, peaceful. All for work.
Stay hungry, stay foolish, stay cold.



Devaraj Das wrote:
What version of hadoop are you using? I believe this problem got resolved a
while back (and 0.11.x has the fix).

Thanks
Devaraj.

-----Original Message-----
From: Evan Liu [mailto:[EMAIL PROTECTED]
Sent: Monday, March 12, 2007 5:32 AM
To: [email protected]
Subject: Re: java.lang.NullPointerException im Sortetr/MergeQueue

I've just come across exactly the same problem. Can anyone be so kind to
help? Thanks!

sincerely,

Liu Qingyan - Evan Liu
Engineer of Platform, Yahoo! China
-------------------------------------
Backyard: liuqingy
Tel: +86-10-65985498
-------------------------------------
Devoted, initiative, peaceful. All for work.
Stay hungry, stay foolish, stay cold.



Ion Badita wrote:
Hi!

I tried to run wordcount example with a 1,9 GB input file, on 6 Nodes.
Hadoop has split the job in: 31 maps and one reduce.

All the maps fail with this stacktrace

java.lang.NullPointerException
    at

org.apache.hadoop.io.SequenceFile$Sorter$MergeQueue.merge(SequenceFile.jav
a:2394)
    at
org.apache.hadoop.io.SequenceFile$Sorter.merge(SequenceFile.java:2087)
    at

org.apache.hadoop.mapred.MapTask$MapOutputBuffer.mergeParts(MapTask.java:4
98)
    at org.apache.hadoop.mapred.MapTask.run(MapTask.java:191)
    at
org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1372)


I tried the example with hadoop 0.10.1 and nightly build
hadoop-2007-02-02 (with the same input), i got the same exception.

Any help will be appreciated.
Thanks!

John




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