Navina Ramesh created SAMZA-887:
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Summary: Use cached JobModel everywhere in the Samza AM container
Key: SAMZA-887
URL: https://issues.apache.org/jira/browse/SAMZA-887
Project: Samza
Issue Type: Bug
Reporter: Navina Ramesh
Since the CoordinatorStreamConsumer is inefficient in how it stays up-to-date
with the coordinator stream, it is not acceptable to call
jobcoordinator.jobModel() to access the jobmodel within the AM container. This
will trigger a "refreshJobModel" on each access. Instead, we should be using
cached job model's reference (JobCoordinator.jobModelRef) to access the config.
As of today, this incorrect access pattern can be seen StreamAppender.
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