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From "Davor Bonaci (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (BEAM-1177) Input DStream "bundles" should be in serialized form and include relevant metadata.
Date Fri, 27 Jan 2017 05:03:24 GMT

     [ https://issues.apache.org/jira/browse/BEAM-1177?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Davor Bonaci reopened BEAM-1177:
--------------------------------

Reopening to correct the 'resolution' field.

> Input DStream "bundles" should be in serialized form and include relevant metadata.
> -----------------------------------------------------------------------------------
>
>                 Key: BEAM-1177
>                 URL: https://issues.apache.org/jira/browse/BEAM-1177
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-spark
>            Reporter: Amit Sela
>            Assignee: Amit Sela
>             Fix For: 0.5.0
>
>
> Currently, the input partitions hold "bundles" of read elements within the {{mapWithStateDStream}}
used for the read.
> Since this is automatically shuffled, user-data (the read elements) should be serialized
using coders to avoid breaking (if user-data is not {{Kryo}} serializable).
> Even after BEAM-848 would complete, the resulting {{MapWithStateDStream}} would be checkpointed
periodically and so it would still have to remain in serialized form.



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