[ 
https://issues.apache.org/jira/browse/HADOOP-17526?focusedWorklogId=737254&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-737254
 ]

ASF GitHub Bot logged work on HADOOP-17526:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 06/Mar/22 16:14
            Start Date: 06/Mar/22 16:14
    Worklog Time Spent: 10m 
      Work Description: Apache9 opened a new pull request #4050:
URL: https://github.com/apache/hadoop/pull/4050


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   ### Description of PR
   Use Slf4jRequestLog in HttpRequestLog, so we do not need to depend on actual 
log appender implementations in code.
   For keeping the rolling way the safe, I have to use DailyRollingFileAppender 
but the DRFA in log4j1 does not support removing old files, so we loss the 
ability of 'RetainDays'. Anyway, later after we upgrade to log4j2, we can add 
this ability back.
   
   ### How was this patch tested?
   Introduced a new UT. Better to deploy a hadoop cluster, enable request log 
and check the output.
   
   
   ### For code changes:
   
   - [X] Does the title or this PR starts with the corresponding JIRA issue id 
(e.g. 'HADOOP-17799. Your PR title ...')?
   - [ ] Object storage: have the integration tests been executed and the 
endpoint declared according to the connector-specific documentation?
   - [ ] If adding new dependencies to the code, are these dependencies 
licensed in a way that is compatible for inclusion under [ASF 
2.0](http://www.apache.org/legal/resolved.html#category-a)?
   - [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`, 
`NOTICE-binary` files?
   
   


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Issue Time Tracking
-------------------

            Worklog Id:     (was: 737254)
    Remaining Estimate: 0h
            Time Spent: 10m

> Use Slf4jRequestLog for HttpRequestLog
> --------------------------------------
>
>                 Key: HADOOP-17526
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17526
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Akira Ajisaka
>            Assignee: Duo Zhang
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Now the log file name and retain days in HttpRequestLog is configured from 
> log4j.properties. It can be configured from Configuration instead to drop the 
> usage of log4j API.
> ==== Update ====
> Use jetty's Slf4jRequestLogWriter, we can remove the code dependency on log 
> appenders.



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