[jira] [Assigned] (RATIS-552) Instrument LogService with metrics framework

["Ankit Singhal (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/RATIS-552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ankit Singhal reassigned RATIS-552:
-----------------------------------

    Assignee: Ankit Singhal

> Instrument LogService with metrics framework
> --------------------------------------------
>
>                 Key: RATIS-552
>                 URL: https://issues.apache.org/jira/browse/RATIS-552
>             Project: Ratis
>          Issue Type: Sub-task
>            Reporter: Ankit Singhal
>            Assignee: Ankit Singhal
>            Priority: Major
>
> Basic metric implemented through timer to get :-
> * No. of requests
> * Histogram for the time taken by the request
> * Request rate etc
> Metrics collected at server for LogStream
> ||MetricName||Metric description||
> | readNextQueryTime | Read request from reader on next() call|
> |startIndexTime| Request to get start index of the log|
> |sizeRequestTime|request to get size of the log|
> |getStateTime| request to get state of log(currently managed at client so may be 0 all the time)|
> |lastIndexQueryTime| request to get last index of the log|
> |lengthQuery|request to get length of the log|
> Metric collected at Metadata service
> ||MetricName||Metric description||
> |CREATELOG|request to create log|
> |DELETELOG|request to delete log|
> |LISTLOG|request to list log|
> |GETLOG|request to get log|
> |ARCHIVELOG|request to archive log|



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