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Message-ID: <1792fdad0901081938k31bc8f41s3454c85906e5d1f1@mail.gmail.com>
Date: Fri, 9 Jan 2009 11:38:06 +0800
From: shixing <paradisehit@gmail.com>
To: core-user@hadoop.apache.org, core-dev@hadoop.apache.org
Subject: Hangs when reduce
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The hadoop is 0.19-trunk checked out 2008-10-10

we use this trunck and after run several days, it will alway hangs several
reducers when copying at 0.0%。

the log is always like this:

2009-01-09 11:19:38,600 INFO org.apache.hadoop.mapred.TaskTracker:
attempt_200901081900_0015_r_000000_3 0.0% reduce > copy >
2009-01-09 11:19:41,331 INFO org.apache.hadoop.mapred.TaskTracker:
org.apache.hadoop.util.DiskChecker$DiskErrorException: Could not find
taskTracker/jobcache/job_200901081900_0015/attempt_200901081900_0015_r_000000_3/output/file.out
in any of the configured local directories

I also wonder why it find the reduce output in the local directories? I just
know the mapresult is on local disk.


-- 
Best wishes!
My Friend~

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