[jira] [Resolved] (SPARK-28415) Add messageHandler to Kafka 10 direct stream API

["Dongjoon Hyun (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-28415?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dongjoon Hyun resolved SPARK-28415.
-----------------------------------
    Resolution: Invalid

According to the decision on https://github.com/apache/spark/pull/27022, I close this JIRA issue as `Invalid`. Please feel free to reopen this if there is an update.

> Add messageHandler to Kafka 10 direct stream API
> ------------------------------------------------
>
>                 Key: SPARK-28415
>                 URL: https://issues.apache.org/jira/browse/SPARK-28415
>             Project: Spark
>          Issue Type: New Feature
>          Components: DStreams
>    Affects Versions: 3.0.0
>            Reporter: Michael Spector
>            Priority: Major
>
> Lack of messageHandler parameter to KafkaUtils.createDirectStrem(...) in new Kafka API is what prevents us from upgrading our processes to use it, and here's why:
>  # messageHandler() allowed parsing / filtering / projecting huge JSON files at an early stage (only a small subset of JSON fields is required for a process), without this current cluster configuration doesn't keep up with the traffic.
>  # Transforming Kafka events right after a stream is created prevents from using HasOffsetRanges interface later. This means that whole message must be propagated to the end of a pipeline, which is very ineffective.
>  



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