Leader breaker #218
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Leader breaker #218
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Otherwise a partition being entirely gone can slow things right down, since we'll do a complete metadata refresh on every single message.
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Wrap the producer's leader update in a circuit-breaker. Should permit us to fail fast when a partition goes away, and avoid backing up all the other partitions behind constant useless metadata updates.
fixes #213
@wvanbergen @graemej @marc-barry