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https://issues.apache.org/jira/browse/STORM-185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13865754#comment-13865754
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P. Taylor Goetz commented on STORM-185:
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Storm does not (and likely will not) support this kind of functionality.
That being said, you can certainly implement this yourself. I would suggest
using zookeeper for inter-component communication.
It's old, but you may be able to glean some of the concepts necessary from this
project: https://github.com/ptgoetz/storm-signals
> solution for sending notification to spout for the completion of task of
> particular batch
> -----------------------------------------------------------------------------------------
>
> Key: STORM-185
> URL: https://issues.apache.org/jira/browse/STORM-185
> Project: Apache Storm (Incubating)
> Issue Type: Question
> Reporter: pa24389
> Labels: features, newbie
> Original Estimate: 48h
> Remaining Estimate: 48h
>
> Hi Everyone,
> In my use case i need to send a notification to spout as soon as the
> processing of a batch is completed by the final bolt.After the completion of
> this batch only new batch has to be emitted.How do i implement this scenario
> as static variables cant be used in multi node storm cluster.I am using
> trident with state management implementation.I am struggling for this since
> last 15 days.I tried implementing ITridentSpout but still not able to send
> notification back to spout.
> Please suggest some solution.
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