[jira] [Assigned] (KAFKA-4005) Add per topic compression ratio in broker and consumer.

["Jiangjie Qin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-4005?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jiangjie Qin reassigned KAFKA-4005:
-----------------------------------

    Assignee: Jiangjie Qin

> Add per topic compression ratio in broker and consumer.
> -------------------------------------------------------
>
>                 Key: KAFKA-4005
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4005
>             Project: Kafka
>          Issue Type: Improvement
>          Components: clients, core
>            Reporter: Jiangjie Qin
>            Assignee: Jiangjie Qin
>             Fix For: 0.10.1.0
>
>
> Currently we only have compression ratio metric on the producer side. It would be very useful to have that in the brokers and consumers for each topic as well. 
> On the broker side, the compression ratio can be potentially depending on the produce request or the final message written to the disk. It is probably more useful to use the compression ratio of the messages we finally writes to disk. If the messages are compressed in different compression type, we can maintain the compression ratio for each type separately.
> The consumer side compression ratio would be for each topic and compression type combination as well.



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