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https://issues.apache.org/jira/browse/STORM-599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14277076#comment-14277076
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Robert Joseph Evans commented on STORM-599:
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[~sriharsha]
You are correct I verified it too. Hmm, we are running with this on based on a
different code base that is working, it could have something to do with how
often the cache is being updated. I will revert the checking, reopen this and
then we can investigate further. Thanks for finding this.
> UI is slow due to fetching heartbeats from ZK
> ---------------------------------------------
>
> Key: STORM-599
> URL: https://issues.apache.org/jira/browse/STORM-599
> Project: Apache Storm
> Issue Type: Improvement
> Affects Versions: 0.9.3
> Reporter: Derek Dagit
> Assignee: Derek Dagit
> Priority: Minor
> Fix For: 0.10.0
>
>
> The method getTopologyInfo fetches every heartbeat from ZooKeeper in order to
> gather statistics. The UI calls this method via thrift to render the
> topology page.
> When topologies are launched with thousands of executors, this fetching from
> ZK dramatically slows things down.
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