UIMA AS aggregate not handling timeouts correctly for parallel delegates
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Key: UIMA-1665
URL: https://issues.apache.org/jira/browse/UIMA-1665
Project: UIMA
Issue Type: Bug
Components: Async Scaleout
Reporter: Jerry Cwiklik
Priority: Blocker
Fix For: 2.3AS
Burn discovered a bug in UIMA AS aggregate while handling timeouts from
delegates in a parallel step. A delegate timeout that is subsequently disabled
(due to error handling setting action=disable), causes error handling code to
(incorrectly) double increment the count of delegates that responded. The count
is maintained to determine how many delegates in a parallel step responded and
if it is ok to allow the CAS to continue with the flow. This counter is
incremented when a reply comes or there is a timeout. When the counter reaches
the expected number, the CAS is allowed to continue on with flow. The double
increment causes a CAS to continue in the flow prematurely.
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