[jira] [Updated] (HADOOP-18364) All method metrics related to the RPC protocol should be initialized

["Shilun Fan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-18364?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shilun Fan updated HADOOP-18364:
--------------------------------
    Affects Version/s: 3.4.0

> All method metrics related to the RPC protocol should be initialized
> --------------------------------------------------------------------
>
>                 Key: HADOOP-18364
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18364
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 3.4.0
>            Reporter: Shuyan Zhang
>            Assignee: Shuyan Zhang
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.4.0
>
>          Time Spent: 2h 50m
>  Remaining Estimate: 0h
>
> When an RPC protocol is used, the metric of protocol-related methods should be initialized; otherwise, metric information will be incomplete. For example, when we call HAServiceProtocol#monitorHealth(), only the metric of monitorHealth() are initialized, and the metric of transitionToStandby() are still not reported. This incompleteness caused a little trouble for our monitoring system.
> The root cause is that the parameter passed by RpcEngine to MutableRatesWithAggregation#init(java.lang.Class<?>)  is always XXXProtocolPB, which is inherited from BlockingInterface and does not implement any methods. We should fix this bug.



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