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https://issues.apache.org/jira/browse/EAGLE-410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15408950#comment-15408950
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ASF GitHub Bot commented on EAGLE-410:
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Github user yonzhang closed the pull request at:
https://github.com/apache/incubator-eagle/pull/301
> stream tumbling window aggregate library
> ----------------------------------------
>
> Key: EAGLE-410
> URL: https://issues.apache.org/jira/browse/EAGLE-410
> Project: Eagle
> Issue Type: Task
> Affects Versions: v0.5.0
> Reporter: Edward Zhang
> Assignee: Edward Zhang
> Fix For: v0.5.0
>
>
> Many use cases need aggregate data in streaming process, but Storm does not
> provide high level aggregation API. The most frequently used example is to
> aggregate data per minute while data is streamlined.
> After investigation, we found Siddhi CEP engine is good for this task.
> https://docs.wso2.com/display/CEP420/Inbuilt+Windows#InbuiltWindows-externalTimeBatchexternalTimeBatch
> This ticket will develop a preview of simple aggregation API for Eagle use
> case.
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