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Posted to issues@storm.apache.org by "Nikhil Bafna (JIRA)" <ji...@apache.org> on 2018/03/01 16:05:00 UTC

[jira] [Commented] (STORM-2984) Introduce jitter in executor heartbeat

    [ https://issues.apache.org/jira/browse/STORM-2984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16382213#comment-16382213 ] 

Nikhil Bafna commented on STORM-2984:
-------------------------------------

The idea is similar to refreshLoadTimer which is scheduled with jitter of 500ms.

> Introduce jitter in executor heartbeat
> --------------------------------------
>
>                 Key: STORM-2984
>                 URL: https://issues.apache.org/jira/browse/STORM-2984
>             Project: Apache Storm
>          Issue Type: Improvement
>          Components: storm-client
>            Reporter: Nikhil Bafna
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> The executorHeartbeatTimer is scheduled without jitter. In cases where state storage is Zookeeper and not pacemaker, introducing jitter will help spread out the I/O over time on Zookeeper. This will be helpful for large clusters.
> The jitter time could be 0 < jitterTime < worker.heartbeat.frequency.secs



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