[
https://issues.apache.org/jira/browse/KAFKA-5724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16123563#comment-16123563
]
Jason Gustafson commented on KAFKA-5724:
----------------------------------------
[~allenxwang] I fear this is not the only place we make this assumption. Can
you clarify specifically how an advanced tool creates a topic with a non-zero
first partition?
> AbstractPartitionAssignor does not take into consideration that partition
> number may start from non-zero
> --------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-5724
> URL: https://issues.apache.org/jira/browse/KAFKA-5724
> Project: Kafka
> Issue Type: Bug
> Components: clients, consumer
> Affects Versions: 0.11.0.0
> Reporter: Allen Wang
> Assignee: huxihx
>
> In AbstractPartitionAssignor.assign(Cluster metadata, Map<String,
> Subscription> subscriptions), it invokes assign(partitionsPerTopic,
> subscriptions). It assumes that partition number starts from 0, and it
> constructs TopicPartition in the range of [0, partitionsPerTopic).
> This assumption is not correct. The correct way to handle it is to follow the
> same approach in producer's DefaultPartitioner, where it uses [0,
> numberOfPartition) as an index to the actual partition.
> There are use cases where partition number may not start from zero. It can
> happen if users use advanced tooling to manually craft the partition number
> when creating topics.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
