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https://issues.apache.org/jira/browse/HDDS-1469?focusedWorklogId=233073&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-233073
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ASF GitHub Bot logged work on HDDS-1469:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 25/Apr/19 19:39
            Start Date: 25/Apr/19 19:39
    Worklog Time Spent: 10m 
      Work Description: anuengineer commented on issue #773: HDDS-1469. 
Generate default configuration fragments based on annotations
URL: https://github.com/apache/hadoop/pull/773#issuecomment-486810661
 
 
   > /cc @anuengineer This is the annotation processor. With a small 
modification in the OzoneConfiguration (to load all the generated fragments) we 
don't need to merge all the generated config files to one big ozone-default.xml
   
   I am ok with that, but some of the old school people might like a single 
file, and in the deployment, phase don't we need a single file ? or should we 
move away since the code already has the default?
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 233073)
    Time Spent: 2h 20m  (was: 2h 10m)

> Generate default configuration fragments based on annotations
> -------------------------------------------------------------
>
>                 Key: HDDS-1469
>                 URL: https://issues.apache.org/jira/browse/HDDS-1469
>             Project: Hadoop Distributed Data Store
>          Issue Type: Sub-task
>            Reporter: Elek, Marton
>            Assignee: Elek, Marton
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 2h 20m
>  Remaining Estimate: 0h
>
> See the design doc in the parent jira for more details.
> In this jira I introduce a new annotation processor which can generate 
> ozone-default.xml fragments based on the annotations which are introduced by 
> HDDS-1468.
> The ozone-default-generated.xml fragments can be used directly by the 
> OzoneConfiguration as I added a small code to the constructor to check ALL 
> the available ozone-default-generated.xml files and add them to the available 
> resources.
> With this approach we don't need to edit ozone-default.xml as all the 
> configuration can be defined in java code.
> As a side effect each service will see only the available configuration keys 
> and values based on the classpath. (If the ozone-default-generated.xml file 
> of OzoneManager is not on the classpath of the SCM, SCM doesn't see the 
> available configs.) 



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