Matthias J. Sax created KAFKA-5309:
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Summary: Stores not queryable after one thread died
Key: KAFKA-5309
URL: https://issues.apache.org/jira/browse/KAFKA-5309
Project: Kafka
Issue Type: Bug
Components: streams
Affects Versions: 0.10.2.1
Reporter: Matthias J. Sax
Assignee: Matthias J. Sax
For a multi threaded Streams instance, it can happen that one thread dies while
all other threads (within a single instance) keep running. Even if this is an
rare scenario, we should allow querying the stores after rebalance finished.
However, this does never happen, as the died thread's state is still in
{{KafkaStreams}} thread state map (as {{NOT_RUNNING}}), and thus,
{{KafkaStreams}} itself is in state {{REBALANCING}} all the time and does not
transit back to {{RUNNING}}.
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