[jira] [Resolved] (KAFKA-16807) DescribeLogDirsResponseData#results#topics have unexpected topics having empty partitions

["Chia-Ping Tsai (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-16807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chia-Ping Tsai resolved KAFKA-16807.
------------------------------------
    Resolution: Fixed

> DescribeLogDirsResponseData#results#topics have unexpected topics having empty partitions
> -----------------------------------------------------------------------------------------
>
>                 Key: KAFKA-16807
>                 URL: https://issues.apache.org/jira/browse/KAFKA-16807
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Chia-Ping Tsai
>            Assignee: 黃竣陽
>            Priority: Blocker
>             Fix For: 3.8.0, 3.7.1, 3.9.0
>
>
> ReplicaManager [0] could generate a response having unexpected topics which have empty partitions. The root cause is it always generate the topic collection even though they have no matched partitions.
> That is not a issue to Kafka clients, since we loop the "partitions" to fill all future responses [1]. Hence, those unexpected topics won't be existent in the final results.
> However, that could be a issue to the users who implement Kafka client based on Kafka protocol [2]
> [0] https://github.com/apache/kafka/blob/trunk/core/src/main/scala/kafka/server/ReplicaManager.scala#L1252
> [1] https://github.com/apache/kafka/blob/b5a013e4564ad93026b9c61431e4573a39bec766/clients/src/main/java/org/apache/kafka/clients/admin/KafkaAdminClient.java#L3145
> [2] https://lists.apache.org/thread/lp7ktmm17pbg7nqk7p4s904lcn3mrvhy



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