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Posted to dev@storm.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2015/01/06 22:46:34 UTC

[jira] [Commented] (STORM-599) UI is slow due to fetching heartbeats from ZK

    [ https://issues.apache.org/jira/browse/STORM-599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14266832#comment-14266832 ] 

ASF GitHub Bot commented on STORM-599:
--------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/storm/pull/356


> 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
>
> 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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