tree 469cdc4b919a624173a1bee75f0b58d32c4c53c4
parent cdc4caa578778719684edda5dbb2f0786e67f202
author Colin Patrick McCabe <cmccabe@apache.org> 1714667005 -0700
committer GitHub <noreply@github.com> 1714667005 -0700
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KAFKA-16624: Don't generate useless PartitionChangeRecord on older MV (#15810)

Fix a case where we could generate useless PartitionChangeRecords on metadata versions older than
3.6-IV0. This could happen in the case where we had an ISR with only one broker in it, and we were
trying to go down to a fully empty ISR. In this case, PartitionChangeBuilder would block the record
to going down to a fully empty ISR (since that is not valid in these pre-KIP-966 metadata
versions), but it would still emit the record, even though it had no effect.

Reviewers: Igor Soarez <soarez@apple.com>