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https://issues.apache.org/jira/browse/STORM-599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14275512#comment-14275512
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Sriharsha Chintalapani commented on STORM-599:
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[~revans2] [~dagit] This patch causing some issue in UI. Metrics don't show up
in the UI after deploying wordcount topology. I am able to view metrics after
I reverted 40be5ddb94b674f8fcf2c804c7af96fbfe77776a,
3907b2d780b796e754bf3566d29567cff6e77679. [~parth.brahmbhatt] also verified
that metrics are not showing up with latest master branch. Can you please check.
> 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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