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From "ASF subversion and git services (JIRA)" <>
Subject [jira] [Commented] (KYLIN-3369) Reduce the data size sink from Kafka topic to HDFS
Date Wed, 30 May 2018 09:37:00 GMT


ASF subversion and git services commented on KYLIN-3369:

Commit 6d623664ad513bd5a2ad7e9694cdd70f5ef7e6f6 in kylin's branch refs/heads/KYLIN-3369 from
[~Na Zhai]
[;h=6d62366 ]

KYLIN-3369 Kafka join with hive

Signed-off-by: shaofengshi <>

> Reduce the data size sink from Kafka topic to HDFS
> --------------------------------------------------
>                 Key: KYLIN-3369
>                 URL:
>             Project: Kylin
>          Issue Type: Improvement
>          Components: Streaming
>            Reporter: Shaofeng SHI
>            Assignee: Shaofeng SHI
>            Priority: Major
>             Fix For: v2.4.0
> When building a cube from Kafka topic, the first step is to sink the Kafka data to HDFS.
In today's implementation, it will persist all the fields of a message to disk. While in many
cases, only a couple of fields will be needed for cubing; Today's behavior wastes network
bandwidth and disk space.

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