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Posted to dev@storm.apache.org by "Derek Dagit (JIRA)" <ji...@apache.org> on 2014/12/22 22:26:14 UTC

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

Derek Dagit created STORM-599:
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             Summary: UI is slow do 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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