[Hadoop-common-user] Unusual Failure of jobs

I have been experiencing some unusual behavior from Hadoop recently.
When trying to run a job, some of the tasks fail with:

java.io.IOException: Task process exit with nonzero status of 1.
at org.apache.hadoop.mapred.TaskRunner.runChild(TaskRunner.java:462)
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:403


Not all the tasks fail, but enough tasks fail such that the job fails.
Unfortunately, there are no further logs for these tasks. Trying to
retrieve the logs produces:

HTTP ERROR: 410

Failed to retrieve stdout log for task:
attempt_200811101232_0218_m_000001_0

RequestURI=/tasklog


It seems like the tasktracker isn't able to even start the tasks on
those machines. Has anyone seen anything like this before?


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