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From "james chien (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (KAFKA-6498) Add RocksDB statistics via Streams metrics
Date Fri, 02 Feb 2018 08:48:00 GMT

    [ https://issues.apache.org/jira/browse/KAFKA-6498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16347963#comment-16347963
] 

james chien edited comment on KAFKA-6498 at 2/2/18 8:47 AM:
------------------------------------------------------------

[~guozhang] I want to pick it up!

For my comprehension is that we want to expose RockDB stats via Streams metrics so that user
can use Streams metrics simply to monitor RockDB stats but not to access RockDB directly which
means `KStream` should be extended.


was (Author: james.c):
[~guozhang] I want to pick it up!

As my comprehension is that we want to expose RockDB stats via Streams metrics so that user
can use Streams metrics simply to monitor RockDB stats but not to access RockDB directly.

> Add RocksDB statistics via Streams metrics
> ------------------------------------------
>
>                 Key: KAFKA-6498
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6498
>             Project: Kafka
>          Issue Type: Improvement
>          Components: metrics, streams
>            Reporter: Guozhang Wang
>            Assignee: james chien
>            Priority: Major
>              Labels: needs-kip
>
> RocksDB's own stats can be programmatically exposed via {{Options.statistics()}} and
the JNI `Statistics` has indeed implemented many useful settings already. However these stats
are not exposed directly via Streams today and hence for any users who wants to get access
to them they have to manually interact with the underlying RocksDB directly, not through Streams.
> We should expose such stats via Streams metrics programmatically for users to investigate
them without trying to access the rocksDB directly.



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