Setup and cleanup tasks could affect job latency if they are caught running on
bad nodes
----------------------------------------------------------------------------------------
Key: MAPREDUCE-1099
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1099
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: jobtracker
Affects Versions: 0.20.1
Reporter: Hemanth Yamijala
We found cases on our clusters where a setup task got scheduled on a bad node
and took upwards of several minutes to run, adversely affecting job runtimes.
Speculation did not help here as speculation is not used for setup tasks. I
suspect the same could happen for cleanup tasks as well.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
