TaskTracker.offerService could handle IO and Remote Exceptions better
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Key: HADOOP-3987
URL: https://issues.apache.org/jira/browse/HADOOP-3987
Project: Hadoop Core
Issue Type: Bug
Affects Versions: 0.19.0
Reporter: Steve Loughran
The core offerService() loop has a try/catch wrapper that catches and processes
exceptions. Most cause offerService() to return, which then triggers a sleep
and restart in the main loop. But some exceptions are just logged and ignored,
which may be inappropriate
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