Burn Lewis created UIMA-5058:
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Summary: Scaled out pipelines can falsely trigger the error:
Illegal adding of additional MetaData after CASes have been defined
Key: UIMA-5058
URL: https://issues.apache.org/jira/browse/UIMA-5058
Project: UIMA
Issue Type: Bug
Components: Core Java Framework
Affects Versions: 2.8.1SDK
Reporter: Burn Lewis
Fix For: 2.9.0SDK
When UIMA-AS scales out a synchronous UIMA pipeline it sequentially creates
separate AEs in separate threads, sharing the resource manager. Creation of
the 2nd (identical) AE will fail with "Illegal adding of additional MetaData
after CASes have been defined" if a descriptor imports 2 type-system files, one
of which is included in the other. The check fails to recognize that the types
loaded by the 2nd AE are already in the resource manager because of the way
type-systems are cached.
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