MINOR: Document connections.max.idle.ms dependency on max.poll.interval.ms for Classic consumer#22752
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frankvicky wants to merge 3 commits into
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MINOR: Document connections.max.idle.ms dependency on max.poll.interval.ms for Classic consumer#22752frankvicky wants to merge 3 commits into
frankvicky wants to merge 3 commits into
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…al.ms for Classic consumer
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| } | ||
| long connectionsMaxIdleMs = getLong(CONNECTIONS_MAX_IDLE_MS_CONFIG); | ||
| int maxPollIntervalMs = getInt(MAX_POLL_INTERVAL_MS_CONFIG); | ||
| if (connectionsMaxIdleMs >= 0 && connectionsMaxIdleMs < maxPollIntervalMs) { |
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Should the warning cover rebalance.timeout.ms?
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Good question. rebalance.timeout.ms isn't registered in ConsumerConfig — it's a Connect-only config.
I'm not sure if we should deal it in this PR.
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Or we could add similar log warnings to DistributedConfig?
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In the Classic consumer,
connections.max.idle.mscan cause thecoordinator connection to be reaped during a long rebalance if
max.poll.interval.msis higher than it. When this happens, in-flightJoinGrouprequests are cancelled and the group cycles throughconnection reaping, which prolongs or destabilizes the rebalance —
particularly in large consumer groups where the coordinator waits longer
for all members to rejoin.
Reviewers: Chia-Ping Tsai chia7712@gmail.com