Add coverage of fair scheduler servlet to system test
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Key: MAPREDUCE-2180
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2180
Project: Hadoop Map/Reduce
Issue Type: Test
Components: contrib/fair-share
Affects Versions: 0.22.0
Reporter: Todd Lipcon
Assignee: Todd Lipcon
Priority: Minor
MAPREDUCE-2051 added a system test for the fair scheduler which starts a
minicluster and runs a couple jobs with preemption on. I recently found a
deadlock in a previous version of the scheduler that was due to lock inversion
between the scheduler servlet and some JT internals. I'd like to modify the
existing system test to also hit the /scheduler servlet, allowing jcarder to
detect such lock inversions in the future.
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