Jim Challenger created UIMA-3011:
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Summary: DUCC Service Manager - set "healty" state based on AMQ
Queue Depth
Key: UIMA-3011
URL: https://issues.apache.org/jira/browse/UIMA-3011
Project: UIMA
Issue Type: Improvement
Components: DUCC
Reporter: Jim Challenger
Assignee: Jim Challenger
Fix For: 1.0-Ducc
Currently SM sets state of a service to "healthy" if any response is received
from the ActiveMq MBean for a queue (as well as if get-meta to the service
works), and "unhealthy" otherwise.
Better would be if some reasoning is done on the queue statistics from
ActiveMQ. This is somewhat subtle as many things need to be taken into
consideration to determine if a service is "healthy".
For the moment, we will use the single heuristic, "is the queue depth too big"
to better draw attention to *potential* (but maybe not actual) problems and
defer more complete analysis to a later time.
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