UIMA AS primitive service should return performance breakdown for each CAS
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Key: UIMA-2180
URL: https://issues.apache.org/jira/browse/UIMA-2180
Project: UIMA
Issue Type: New Feature
Components: Async Scaleout
Reporter: Jerry Cwiklik
Assignee: Jerry Cwiklik
Fix For: 2.3.2AS
Current UIMA AS code doesnt extract CAS per component performance breakdown
from UIMA aggregate. Such breakdown would be very useful in identifying
bottlenecks in a pipeline. This breakdown is available via AnalysisEngine's
getManagementInterface(). The API accesses the same performance stats that AE
exposes via JMX. Since these stats are cumulative, the UIMA AS code should
calculate delta to obtain per CAS performance breakdown. Before calling
processAndOutputNewCASes(), the code should make a copy (actually a deep copy)
of AnalysisEngineManagement instance(s) and calculate delta (of analysisTime)
before returning input CAS.
The list containing the breakdown should be serialized into a reply message and
de-serialized by the client. The UIMA AS client will provide an application the
breakdown as a List via a callback method on UimaAsBaseCallbackListener.
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