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https://issues.apache.org/jira/browse/KAFKA-7051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16510359#comment-16510359
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ASF GitHub Bot commented on KAFKA-7051:
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cmccabe opened a new pull request #5206: KAFKA-7051: Improve the efficiency of
ReplicaManager
URL: https://github.com/apache/kafka/pull/5206
Improve the efficiency of the ReplicaManager when there are many
partitions.
The 'fetchInfo' argument to ReplicaManager#fetchMessages can be an
iterator rather than a sequence. This avoids the need to materialize
a new collection in some cases.
Reduce the number of times we loop over the read results obtained from
'readFromLog'.
Fix a case where we were performing an O(N^2) operation to join the set
of partitions we wanted info about, and the set of partitions we
obtained information about.
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> Improve the efficiency of the ReplicaManager when there are many partitions
> ---------------------------------------------------------------------------
>
> Key: KAFKA-7051
> URL: https://issues.apache.org/jira/browse/KAFKA-7051
> Project: Kafka
> Issue Type: Bug
> Components: replication
> Affects Versions: 0.8.0
> Reporter: Colin P. McCabe
> Assignee: Colin P. McCabe
> Priority: Major
>
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