Hi,
I'm getting the following warning when running the simple wordcount and
grep examples.
09/04/15 16:54:16 INFO mapred.JobClient: Task Id :
attempt_200904151649_0001_m_000019_0, Status : FAILED
Too many fetch-failures
09/04/15 16:54:16 WARN mapred.JobClient: Error reading task
outputhttp://localhost.localdomain:50060/tasklog?plaintext=true&taskid=attempt_200904151649_0001_m_000019_0&filter=stdout
09/04/15 16:54:16 WARN mapred.JobClient: Error reading task
outputhttp://localhost.localdomain:50060/tasklog?plaintext=true&taskid=attempt_200904151649_0001_m_000019_0&filter=stderr
The only advice I could find from other posts with similar errors is to
setup /etc/hosts with all slaves and the host IPs. I did this, but I
still get the warning above. The output seems to come out alright
however (I guess that's why it is a warning).
I tried running a wget on the http:// address in the warning message and
I get the following back
2009-04-15 16:53:46 ERROR 400: Argument taskid is required.
So perhaps the wrong task ID is being passed to the http request. Any
ideas on what can get rid of these warnings?
Thanks,
Cam