Uima AS client consumes too much CPU while waiting for a free CAS
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Key: UIMA-1540
URL: https://issues.apache.org/jira/browse/UIMA-1540
Project: UIMA
Issue Type: Bug
Components: Async Scaleout
Affects Versions: 2.2.2AS
Reporter: Jerry Cwiklik
Assignee: Jerry Cwiklik
Fix For: 2.3AS
The UIMA AS client enters a busy loop in the getCAS() in
BaseUIMAAsynchronousEngineCommon_impl. Since a CAS instance may not be
available for awhile, this code wastes CPU cycles by continuously testing for
null and trying again. Put the thread to sleep for some time before testing for
CAS availability again.
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