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From "Raghu Angadi (JIRA)" <>
Subject [jira] [Commented] (BEAM-52) KafkaIO - bounded/unbounded, source/sink
Date Fri, 29 Apr 2016 22:10:12 GMT


Raghu Angadi commented on BEAM-52:

Ah, thanks. just skimmed through it. It looks pretty much on the same lines as what I have.
couple of differences : 
  - Kafka producer uses the key for selecting a partition. I wanted to retain that functionality
for users. So I apply our coders inside custom Kafka serializers. Otherwise Kafka will hash
on serialized byte array. 
 - I noticed you are catching the exceptions in a callback and reporting it back.. may be
I should do that too. will get Dan's opinion as well in PR.

I will ping you to review my pull request.

> KafkaIO - bounded/unbounded, source/sink
> ----------------------------------------
>                 Key: BEAM-52
>                 URL:
>             Project: Beam
>          Issue Type: New Feature
>          Components: sdk-java-extensions
>            Reporter: Daniel Halperin
>            Assignee: Raghu Angadi
> We should support Apache Kafka. The priority list is probably:
> * UnboundedSource
> * unbounded Sink
> * BoundedSource
> * bounded Sink
> The connector should be well-tested, especially around UnboundedSource checkpointing
and resuming, and data duplication.

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