Xinyu Liu created SAMZA-1129:
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Summary: Add plugable CoordinationService
Key: SAMZA-1129
URL: https://issues.apache.org/jira/browse/SAMZA-1129
Project: Samza
Issue Type: New Feature
Reporter: Xinyu Liu
Assignee: Boris Shkolnik
In the local deployment mode, coordination is needed for the following
scenarios:
1) Coordination on the job level: we need leader elector to generate the job
model, and a barrier for all the followers to receive the job model after
generation.
2) Coordination on the app level: we need leader elector to generate the
intermediate streams, and a latch for all the processors to start after that.
A plugable CoordinationService can be shared for these use cases of group
coordination. Samza will provide a Zk-based CoordinationService that can be
used to construct the leader elector and latch.
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