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https://issues.apache.org/jira/browse/FLINK-16444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17286615#comment-17286615
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Yu Li commented on FLINK-16444:
-------------------------------

[~yunta] Besides these metrics, let's also check and confirm whether more 
metrics worth being introduced referring to 
[KIP-607|https://cwiki.apache.org/confluence/display/KAFKA/KIP-607%3A+Add+Metrics+to+Kafka+Streams+to+Report+Properties+of+RocksDB].

> Count the read/write/seek/next latency of RocksDB as metrics
> ------------------------------------------------------------
>
>                 Key: FLINK-16444
>                 URL: https://issues.apache.org/jira/browse/FLINK-16444
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / State Backends
>            Reporter: Yun Tang
>            Assignee: Yun Tang
>            Priority: Major
>             Fix For: 1.13.0
>
>
> Currently, user cannot know the read/write/seek/next latency of RocksDB, we 
> could add these helpful metrics to know the overall state performance. To not 
> affect the action performance much, we could introduce counter to only record 
> the latency at interval of some actions.



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