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https://issues.apache.org/jira/browse/LENS-286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14316072#comment-14316072
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Amareshwari Sriramadasu commented on LENS-286:
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Yes. LensRequestListener is implementation of RequestEventListener we have.

And we should be able to use timer/meter from codahale to capture the time 
differences and emit them to ganglia. 

> Add latency metering metrics for all api exposed through REST
> -------------------------------------------------------------
>
>                 Key: LENS-286
>                 URL: https://issues.apache.org/jira/browse/LENS-286
>             Project: Apache Lens
>          Issue Type: Improvement
>          Components: server
>            Reporter: Amareshwari Sriramadasu
>             Fix For: 2.1
>
>
> To understand the latencies provided by lens server, we want to include 
> metering for all the api.
> We can explore meters in 
> https://dropwizard.github.io/metrics/3.1.0/manual/core/#meters



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