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From "Shaofeng SHI (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (KYLIN-3369) Reduce the data size sink from Kafka topic to HDFS
Date Fri, 11 May 2018 10:24:00 GMT

     [ https://issues.apache.org/jira/browse/KYLIN-3369?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Shaofeng SHI updated KYLIN-3369:
--------------------------------
    Fix Version/s: v2.4.0

> Reduce the data size sink from Kafka topic to HDFS
> --------------------------------------------------
>
>                 Key: KYLIN-3369
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3369
>             Project: Kylin
>          Issue Type: Improvement
>          Components: Streaming
>            Reporter: 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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