[jira] [Commented] (BEAM-1177) Input DStream "bundles" should be in serialized form and include relevant metadata.

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/BEAM-1177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15798143#comment-15798143 ] 

ASF GitHub Bot commented on BEAM-1177:
--------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/beam/pull/1654


> 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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