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https://issues.apache.org/jira/browse/KAFKA-3358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15243134#comment-15243134
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Ismael Juma commented on KAFKA-3358:
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Also, are there other places where we are using `dequeFor` unnecessarily? It
seems to me that we should only use it when we want to rely on the automatic
creation of the deque, but we tend to use it everywhere.
> Only request metadata updates once we have topics or a pattern subscription
> ---------------------------------------------------------------------------
>
> Key: KAFKA-3358
> URL: https://issues.apache.org/jira/browse/KAFKA-3358
> Project: Kafka
> Issue Type: Improvement
> Components: clients
> Affects Versions: 0.9.0.0, 0.9.0.1
> Reporter: Ismael Juma
> Assignee: Jason Gustafson
> Priority: Critical
> Fix For: 0.10.1.0
>
>
> The current code requests a metadata update for _all_ topics which can cause
> major load issues in large clusters.
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