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From "Davor Bonaci (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (BEAM-1182) Direct runner should enforce encodability of unbounded source checkpoints
Date Wed, 28 Dec 2016 22:19:58 GMT

     [ https://issues.apache.org/jira/browse/BEAM-1182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Davor Bonaci updated BEAM-1182:
-------------------------------
    Component/s: runner-direct

> Direct runner should enforce encodability of unbounded source checkpoints
> -------------------------------------------------------------------------
>
>                 Key: BEAM-1182
>                 URL: https://issues.apache.org/jira/browse/BEAM-1182
>             Project: Beam
>          Issue Type: Improvement
>          Components: runner-direct
>            Reporter: Eugene Kirpichov
>            Assignee: Thomas Groh
>
> As far as I can tell, https://github.com/apache/incubator-beam/blob/master/runners/direct-java/src/main/java/org/apache/beam/runners/direct/UnboundedReadEvaluatorFactory.java
currently uses the reader's getCheckpoint() only as an in-memory object, i.e. it's not exercising
that 1) the checkpoint can be encoded at all, and 2) that the reader can be resumed from an
encoded/decoded checkpoint.
> I've seen cases in code reviews where people implemented a non-serializable checkpoint,
and direct runner tests didn't catch that because of this issue.



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