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Posted to commits@beam.apache.org by "Kenneth Knowles (JIRA)" <ji...@apache.org> on 2016/09/20 20:42:21 UTC

[jira] [Updated] (BEAM-652) StateNamespaces.window() potentially unstable / stable encodings for windows

     [ https://issues.apache.org/jira/browse/BEAM-652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kenneth Knowles updated BEAM-652:
---------------------------------
    Issue Type: Improvement  (was: New Feature)

> StateNamespaces.window() potentially unstable / stable encodings for windows
> ----------------------------------------------------------------------------
>
>                 Key: BEAM-652
>                 URL: https://issues.apache.org/jira/browse/BEAM-652
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-java-core
>            Reporter: Kenneth Knowles
>
> WindowNamespace#stringKey includes a base64 encoding of the window as encoded by the windowCoder. This makes the key unpredictable if we support features such as reloading a pipeline with a new SDK or bugfixed pipeline. The encoding should be stable and documented.
> And even if the SDK's window types are stable and documented, users can define their own windows with coders and these may be less stable / requiring bugfixes. This ticket is to track the issue and any new ideas.
> [1] https://github.com/apache/incubator-beam/blob/master/sdks/java/core/src/main/java/org/apache/beam/sdk/util/state/StateNamespaces.java#L113



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