Details
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Improvement
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Status: Resolved
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Minor
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Resolution: Not A Problem
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0.8.1.1
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None
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None
Description
The current options for the producer parameter request.required.acks include 0, positive numbers and -1. -1 means the acks from replicas in ISR.
In a stress test, it's found that, if request.required.acks=-1 and the leader is receiving at high speed, then the followers will fail out of ISR. In this case, request.required.acks=-1 is equivelant to request.required.acks=1 because only the leader is in ISR.
It would be desirable to add request.required.acks=-2 to require acks from all replicas.