reducers hang, jobtracker loosing completely track of them.
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Key: HADOOP-3915
URL: https://issues.apache.org/jira/browse/HADOOP-3915
Project: Hadoop Core
Issue Type: Bug
Affects Versions: 0.17.1
Environment: EC2, Debian Etch (but not the ec2-contrib stuff)
streaming.jar
Reporter: Andreas Kostyrka
Fix For: 0.17.2
I just noticed the following curious situation:
-) 18 of 22 reducers are waiting for 3 hours or so with 0.01MB/s and no
progress.
-) hadoop job -kill-task does not work on the ids shown
-) killing all reduce work tasks (the spawned Python processes, not java
TaskTracker$Child) gets completely ignored by the JobTracker, the jobtracker
shows them still as running.
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