UIMA AS releases parent CAS prematurely
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Key: UIMA-1981
URL: https://issues.apache.org/jira/browse/UIMA-1981
Project: UIMA
Issue Type: Bug
Components: Async Scaleout
Reporter: Jerry Cwiklik
Assignee: Jerry Cwiklik
Fix For: 2.3.1AS
UIMA AS aggregate uses a child counter along with a few booleans kept in a
cache to determine when to put parent CAS in play. If there are no more child
CASes in play and the parent CAS has returned from a CM, the CAS may proceed
into a finalStep() or into process() if parentProcessLast=true. Upon return
from a CM, the state of the CAS is marked as returned from CM. Problem is it
remains set to as returned even though it may be subsequently sent to another
delegate CM. When the last child CAS is processed, the parent CAS is released
even though it may still be in a CM delegate. The fix for this is to reset
"return from delegate" flag to false before dispatching a CAS to the next
delegate in a flow.
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