Xinyu Liu created SAMZA-2122:
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Summary: Fix the task caught-up logic which doesn't handle no
incoming messages
Key: SAMZA-2122
URL: https://issues.apache.org/jira/browse/SAMZA-2122
Project: Samza
Issue Type: Bug
Reporter: Xinyu Liu
Assignee: Xinyu Liu
Currently the TaskInstance.checkCaughtUp() logic has a bug that if there is no
incoming messages for a partition, it will not mark the ssp to be caught up.
Instead, it should mark ssp to be caught up if the starting offset is already
the upcoming offset for a ssp, meaning it has consumed all the messages in this
partition and waiting for the future incoming messages. This indicates the ssp
is fully caught up.
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