hachikuji commented on a change in pull request #11171:
URL: https://github.com/apache/kafka/pull/11171#discussion_r683019148
##########
File path: core/src/main/scala/kafka/log/Log.scala
##########
@@ -553,6 +553,14 @@ class Log(@volatile var logStartOffset: Long,
/** Only used for ZK clusters when we update and start using topic IDs on
existing topics */
def assignTopicId(topicId: Uuid): Unit = {
+ // defensively check that any newly assign topic ID matches any that is
already set
+ _topicId.foreach { current =>
+ if (!current.equals(topicId))
Review comment:
Can we shortcut return if the current topicId is already defined and
matches the provided topicId?
##########
File path: core/src/main/scala/kafka/log/Log.scala
##########
@@ -553,6 +553,14 @@ class Log(@volatile var logStartOffset: Long,
/** Only used for ZK clusters when we update and start using topic IDs on
existing topics */
def assignTopicId(topicId: Uuid): Unit = {
+ // defensively check that any newly assign topic ID matches any that is
already set
+ _topicId.foreach { current =>
+ if (!current.equals(topicId))
+ // we should never get here as the topic IDs should have been checked in
becomeLeaderOrFollower
Review comment:
nit: fix alignment (just use braces 😉 . I won't tell anyone)
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