Hi all, After discussing with Stanislav Kozlovski, I plan to continue implementing this KIP. However, I have a question regarding the Validation section.
It says, "If the targetReplicaSet of the reassignment differs from the current replica set of the partition, an error is thrown." I’m wondering if the word “differs” here refers to: (1) Only the targetReplicaSet size differing from the current replica set, or (2) The targetReplicaSet as a whole differing from the current replica set. I assume it’s (2) since the KIP aims to avoid a situation where, during alterPartitionReassignments, the replication factor (RF) could end up larger than the original RF. However, I would like to confirm if my understanding is correct. Thank you! -- Best, Kuan-Po On 2022/07/28 08:59:18 Stanislav Kozlovski wrote: > Hey all, > > I'd like to start a discussion on a proposal to help API users from > inadvertently increasing the replication factor of a topic through > the alter partition reassignments API. The KIP describes two fairly > easy-to-hit race conditions in which this can happen. > > The KIP itself is pretty simple, yet has a couple of alternatives that can > help solve the same problem. I would appreciate thoughts from the community > on how you think we should proceed, and whether the proposal makes sense in > the first place. > > Thanks! > > KIP: > https://cwiki.apache.org/confluence/display/KAFKA/KIP-860%3A+Add+client-provided+option+to+guard+against+replication+factor+change+during+partition+reassignments > JIRA: https://issues.apache.org/jira/browse/KAFKA-14121 > > -- > Best, > Stanislav >
