[jira] [Commented] (STORM-885) Heartbeat Server (Pacemaker)

["Jungtaek Lim (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/STORM-885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14964303#comment-14964303 ] 

Jungtaek Lim commented on STORM-885:
------------------------------------

[~knusbaum] I just would like to see its progress, as I'm a fan of heartbeat server.
In addition I'd like to ask a question: does it support H/A itself? It should be, cause it could be a new SPOF.

> Heartbeat Server (Pacemaker)
> ----------------------------
>
>                 Key: STORM-885
>                 URL: https://issues.apache.org/jira/browse/STORM-885
>             Project: Apache Storm
>          Issue Type: Improvement
>          Components: storm-core
>            Reporter: Robert Joseph Evans
>            Assignee: Kyle Nusbaum
>
> Large highly connected topologies and large clusters write a lot of data into ZooKeeper.  The heartbeats, that make up the majority of this data, do not need to be persisted to disk.  Pacemaker is intended to be a secure replacement for storing the heartbeats without changing anything within the heartbeats.  In the future as more metrics are added in, we may want to look into switching it over to look more like Heron, where a metrics server is running for each node/topology.  And can be used to aggregate/per-aggregate them in a more scalable manor.



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