extend JobClient.runJob(JobConf) with the ability to take a timeout, so fail better during
test runs
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Key: HADOOP-4639
URL: https://issues.apache.org/jira/browse/HADOOP-4639
Project: Hadoop Core
Issue Type: Improvement
Components: test
Affects Versions: 0.20.0
Reporter: Steve Loughran
Priority: Minor
Tests that submit jobs via JobClient hang until they are killed if something goes wrong in
the back end -JobClient does not impose limits on how long runs should take, but JUnit does.
If we had an overload of runJob() that took a timeout, JobClient could kill a job that was
taking too long, extracting the stack trace and better diagnostics to the test reports.
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