jsancio commented on a change in pull request #11733:
URL: https://github.com/apache/kafka/pull/11733#discussion_r813988441
##########
File path:
metadata/src/main/java/org/apache/kafka/controller/ReplicationControlManager.java
##########
@@ -760,44 +719,132 @@ BrokersToIsrs brokersToIsrs() {
}
if (change.leader() != request.brokerId() &&
change.leader() != NO_LEADER_CHANGE) {
- // Normally, an alterIsr request, which is made by the
partition
+ // Normally, an alterPartition request, which is made
by the partition
// leader itself, is not allowed to modify the
partition leader.
// However, if there is an ongoing partition
reassignment and the
// ISR change completes it, then the leader may change
as part of
// the changes made during reassignment cleanup.
//
// In this case, we report back FENCED_LEADER_EPOCH to
the leader
- // which made the alterIsr request. This lets it know
that it must
+ // which made the alterPartition request. This lets it
know that it must
// fetch new metadata before trying again. This return
code is
// unusual because we both return an error and
generate a new
// metadata record. We usually only do one or the
other.
- log.info("AlterIsr request from node {} for {}-{}
completed " +
+ log.info("AlterPartition request from node {} for
{}-{} completed " +
"the ongoing partition reassignment and triggered
a " +
- "leadership change. Reutrning
FENCED_LEADER_EPOCH.",
+ "leadership change. Returning
FENCED_LEADER_EPOCH.",
request.brokerId(), topic.name, partitionId);
- responseTopicData.partitions().add(new
AlterIsrResponseData.PartitionData().
+ responseTopicData.partitions().add(new
AlterPartitionResponseData.PartitionData().
setPartitionIndex(partitionId).
setErrorCode(FENCED_LEADER_EPOCH.code()));
continue;
} else if (change.removingReplicas() != null ||
change.addingReplicas() != null) {
- log.info("AlterIsr request from node {} for {}-{}
completed " +
+ log.info("AlterPartition request from node {} for
{}-{} completed " +
"the ongoing partition reassignment.",
request.brokerId(),
topic.name, partitionId);
}
}
- responseTopicData.partitions().add(new
AlterIsrResponseData.PartitionData().
+
+ responseTopicData.partitions().add(new
AlterPartitionResponseData.PartitionData().
setPartitionIndex(partitionId).
setErrorCode(result.code()).
setLeaderId(partition.leader).
+ setIsr(Replicas.toList(partition.isr)).
+
setLeaderRecoveryState(partition.leaderRecoveryState.value()).
setLeaderEpoch(partition.leaderEpoch).
- setCurrentIsrVersion(partition.partitionEpoch).
- setIsr(Replicas.toList(partition.isr)));
+ setPartitionEpoch(partition.partitionEpoch));
}
}
+
return ControllerResult.of(records, response);
}
+ /**
+ * Validate the partition information included in the alter partition
request.
+ *
+ * @param brokerId id of the broker requesting the alter partition
+ * @param topic current topic information store by the replication manager
+ * @param partitionId partition id being altered
+ * @param partition current partition registration for the partition being
altered
+ * @param partitionData partition data from the alter partition request
+ *
+ * @return Errors.NONE for valid alter partition data; otherwise the
validation error
+ */
+ private Errors validateAlterPartitionData(
+ int brokerId,
+ TopicControlInfo topic,
+ int partitionId,
+ PartitionRegistration partition,
+ AlterPartitionRequestData.PartitionData partitionData
+ ) {
+ if (partition == null) {
+ log.info("Rejecting alterPartition request for unknown partition
{}-{}.",
+ topic.name, partitionId);
+
+ return UNKNOWN_TOPIC_OR_PARTITION;
+ }
+ if (partitionData.leaderEpoch() != partition.leaderEpoch) {
Review comment:
Yeah. Maybe a INVALID_REQUEST is better. It looks like the legacy
controller just processes the request if the leader has a higher epoch then
what the controller knows.
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