Peter Bacsko created OOZIE-2736:
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Summary: Reduce the number of threads during test execution
Key: OOZIE-2736
URL: https://issues.apache.org/jira/browse/OOZIE-2736
Project: Oozie
Issue Type: Bug
Reporter: Peter Bacsko
Assignee: Peter Bacsko
Currently we have a lots of threads during test execution. On one hand, this is
understandable because we start an entire YARN cluster with all the services
inside a single JVM. Still, the number of threads can be reduced. By default,
certain properties are not set which causes almost all thread pools to start
with 50 threads, which is an unnecessarily high number.
The problem is that every thread consumes memory even if it doesn't run
anything, so on a re. A more noticeable downside is that retrieving a thread
dump results in a large output from jstack.
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