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https://issues.apache.org/jira/browse/BEAM-4275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17188667#comment-17188667
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Beam JIRA Bot commented on BEAM-4275:
-------------------------------------
This issue was marked "stale-P2" and has not received a public comment in 14
days. It is now automatically moved to P3. If you are still affected by it, you
can comment and move it back to P2.
> Pubsub: add DirectRunner support for id_label and timestamp_attribute in
> Python SDK
> -----------------------------------------------------------------------------------
>
> Key: BEAM-4275
> URL: https://issues.apache.org/jira/browse/BEAM-4275
> Project: Beam
> Issue Type: Bug
> Components: runner-direct, sdk-py-core
> Reporter: Udi Meiri
> Priority: P3
> Time Spent: 1h
> Remaining Estimate: 0h
>
> At least for publishing (and maybe pulling) messages, non-Dataflow-based
> sources and sinks for Pub/Sub use the [public
> API|https://cloud.google.com/pubsub/docs/publisher] for Pub/Sub, which
> doesn't support id_label and timestamp_attribute settings.
> Publishing:
> id_label - add an attribute to each message with a unique value
> timestamp_attribute - add an attribute to each message with the publishing
> time as its value
> Pulling:
> id_label - use the value of this message attribute to deduplicate messages
> timestamp_attribute - use the value of this message attribute as the
> element's timestamp
>
> Implementation details: could probably create a pubsubio.py module, for reuse
> with other runners (i.e. implement Pub/Sub IO as PTransforms and not
> NativeSinks and Sources).
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