Status

Current state: AcceptedAdopted (2.6.0)

Discussion thread: here

JIRA: 

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Additionally, we remove the task-level metrics "commit-latency-max" and "commit-latency-avg" because the current committing of tasks that consists of multiple steps (like flushing, committing offsets/transactions, writing checkpoint files) is not done on a per-task level any longer, but the different steps are split out into individual phased over all tasks and committing offsets and transactions is unified into one step for all tasks at once. Because those metics cannot be collected in a useful way any longer, we cannot deprecate the metrics and remove in a future release, but need to remove them directly without a deprecation period.

Compatibility, Deprecation, and Migration Plan

Given the new fetch offset fencing mechanism, to opt-into the new producer per thread model, first this new fencing mechanism must be enabled, before the existing producer side fencing can be disabled.

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