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Posted to issues@storm.apache.org by "Roman (Jira)" <ji...@apache.org> on 2022/01/18 17:12:00 UTC

[jira] [Created] (STORM-3818) Joining more than 2 streams in Stream API

Roman created STORM-3818:
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             Summary: Joining more than 2 streams in Stream API
                 Key: STORM-3818
                 URL: https://issues.apache.org/jira/browse/STORM-3818
             Project: Apache Storm
          Issue Type: Bug
          Components: storm-client
    Affects Versions: 2.2.0
            Reporter: Roman


Joining two streams in storms Stream API works fine as described in the docs with the scheme: {{streamB.join(streamA.window(...))}}

{{{}{}}}However, when joining the result with a third join, a `punctuation error` is thrown.

So there is a way missing of joining {_}three streams{_}? I think, that one window configuration is enough. So the pseudocode would look like: {{{}streamC.join(streamB.join(streamA.window(...))){}}}. However, this raises a punctuation error.

 



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