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Posted to jira@kafka.apache.org by "Vikas Singh (Jira)" <ji...@apache.org> on 2020/06/16 17:56:00 UTC

[jira] [Updated] (KAFKA-10175) MetadataCache::getClusterMetadata returns null for offline replicas

     [ https://issues.apache.org/jira/browse/KAFKA-10175?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vikas Singh updated KAFKA-10175:
--------------------------------
    Summary: MetadataCache::getClusterMetadata returns null for offline replicas  (was: MetadataCache::getCluster returns null for offline replicas)

> MetadataCache::getClusterMetadata returns null for offline replicas
> -------------------------------------------------------------------
>
>                 Key: KAFKA-10175
>                 URL: https://issues.apache.org/jira/browse/KAFKA-10175
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Vikas Singh
>            Priority: Major
>
> This line in the code always returns null:
> [MetadataCache::getClusterMetadata|https://github.com/apache/kafka/blob/2.6/core/src/main/scala/kafka/server/MetadataCache.scala#L272]
> The reason is that the `map(node)` part uses `aliveNodes` to create `Node` object otherwise default to `null`. Offline replicas thus end up always as null.



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