[jira] [Updated] (RATIS-649) Add metrics related to ClientRequests

["Aravindan Vijayan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/RATIS-649?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aravindan Vijayan updated RATIS-649:
------------------------------------
    Attachment: RATIS-649-001.patch

> Add metrics related to ClientRequests 
> --------------------------------------
>
>                 Key: RATIS-649
>                 URL: https://issues.apache.org/jira/browse/RATIS-649
>             Project: Ratis
>          Issue Type: Sub-task
>          Components: server
>    Affects Versions: 0.4.0
>            Reporter: Shashikant Banerjee
>            Assignee: Aravindan Vijayan
>            Priority: Major
>         Attachments: RATIS-649-000.patch, RATIS-649-001.patch
>
>
> Following metrics would be good to have to measure the load and the processing time of client requests:
>  
> |numReadRequestCount|Number of read type requests received on the leader|
> |numWriteRequestCount|Number of write type requests received on the leader|
> |numWatchForMajorityRequestCount|Number of Watch for Majority type requests received on the leader. 
>  |
> |numWatchForAllRequestCount|Number of Watch for All type requests received on the leader.|
> |raftClientReadRequestLatency|Time required to process read type requests |
> |raftClientWriteRequestLatency|Time required to process write type requests|
> |raftClientWatchForMajority|Time required to process WatchForMajority requests|
> |raftClientWatchForAllRequests|Time required to process WatchForAll requests|
> |requestQueueLimitHitCount|Number of times the no of pending requests in the leader hit the configured limit.|
> |numRequestRetryCacheHitCount|No of of Request Retry Cache hits. This gives an idea of retries via Raft clients because of request timeouts or exceptions.|



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