[
https://issues.apache.org/jira/browse/HIVE-20486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16663962#comment-16663962
]
slim bouguerra commented on HIVE-20486:
---------------------------------------
looked at the suggested option and the code base
https://github.com/apache/hive/blob/37c7fd7833eba087eadd8048dbc63b403b272104/ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/Vectorizer.java#L1462
i see that it is only possible to enable this for some pre selected Input
formats.
Thus i have created a new vectorized Kafka Reader.
> Kafka: Use Row SerDe + vectorization
> ------------------------------------
>
> Key: HIVE-20486
> URL: https://issues.apache.org/jira/browse/HIVE-20486
> Project: Hive
> Issue Type: Improvement
> Reporter: Gopal V
> Priority: Major
>
> KafkaHandler returns unvectorized rows which causes the operators downstream
> to be slower and sub-optimal.
> Hive has a vectorization shim which allows Kafka streams without complex
> projections to be wrapped into a vectorized reader via
> {{hive.vectorized.use.row.serde.deserialize}}.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
