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https://issues.apache.org/jira/browse/KUDU-1858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15848803#comment-15848803
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Henry Robinson commented on KUDU-1858:
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That might be useful - it's debatable, though, if we would want to communicate
the sender-side state transitions to the client (for no other reason than that
adds a tight coupling between server implementation and the client).
> Record outbound call queuing / sending times
> --------------------------------------------
>
> Key: KUDU-1858
> URL: https://issues.apache.org/jira/browse/KUDU-1858
> Project: Kudu
> Issue Type: Improvement
> Reporter: Henry Robinson
>
> {{InboundCall}} does a pretty good job of tracking the time it spends queued,
> being handled and so on. We should consider adding the same kind of
> instrumentation to {{OutboundCall}} so that RPC senders can track the time an
> RPC took being queued for sending, actually sending and then waiting for a
> response.
> This information could then be exposed through the {{RpcController}} so that,
> upon RPC completion (or failure) the measurements could be aggregated.
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