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https://issues.apache.org/jira/browse/HADOOP-18082?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ayush Saxena reopened HADOOP-18082:
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> Add debug log when RPC#Reader gets a Call
> -----------------------------------------
>
> Key: HADOOP-18082
> URL: https://issues.apache.org/jira/browse/HADOOP-18082
> Project: Hadoop Common
> Issue Type: Improvement
> Components: rpc-server
> Affects Versions: 2.9.2
> Reporter: JiangHua Zhu
> Assignee: JiangHua Zhu
> Priority: Minor
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 3h
> Remaining Estimate: 0h
>
> Now there is an important question. That is, we only know when a Call is
> actually executed by the Handler. By logging, we cannot know when the Call
> came in.
> If I log some information from the moment the Call enters the inside of the
> RPC, it will help us to know more about the Call.
> The records here should be in the form of logs, and the priority of the logs
> should not be too high, debug is the best.
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