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https://issues.apache.org/jira/browse/HDDS-1154?focusedWorklogId=209462&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-209462
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ASF GitHub Bot logged work on HDDS-1154:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 07/Mar/19 09:01
            Start Date: 07/Mar/19 09:01
    Worklog Time Spent: 10m 
      Work Description: elek commented on pull request #507: HDDS-1154. Add 
tracing to the client side of StorageContainerLocationProtocol and 
OzoneManagerProtocol
URL: https://github.com/apache/hadoop/pull/507
 
 
   
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 209462)
    Time Spent: 0.5h  (was: 20m)

> Add tracing to the client side of StorageContainerLocationProtocol and 
> OzoneManagerProtocol
> -------------------------------------------------------------------------------------------
>
>                 Key: HDDS-1154
>                 URL: https://issues.apache.org/jira/browse/HDDS-1154
>             Project: Hadoop Distributed Data Store
>          Issue Type: Sub-task
>            Reporter: Elek, Marton
>            Assignee: Elek, Marton
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.4.0
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> The best way to display the network performance in the tracing server is to 
> start a new span (=save tracing information) on both of the client and and 
> server side.
> This issue is about improving the client side tracing of OzoneManager and 
> StorageLocationManager.
> The easiest way to turn on tracing for a class which implements an interface 
> is to create a java proxy with TracingUtil.createProxy. With this utility we 
> can execute the required tracing methods (create span/close span) around the 
> original methods without adding any boilerplate code.
> Thanks to the current design hadoop rpc calls are create by the 
> *ClientSideTranslatorPB classes which implements the original protocol 
> interface (eg. StorageContainerLocationProtocolClientSideTranslatorPB 
> implements StorageContainerLocationProtocol) which means that it can easily 
> instrumented by TracingUtil.createProxy.
> The only thing what we need is to use the interface everywhere 
> (StorageContainerLocationProtocol) instead of the implementation 
> (ClientSideTranslator) as a client.
> The only required method which is not published in the ClientSideTranslator 
> is the close method. With adding the close method to the interface (extends 
> Closable) we are able to use the interface everywhere which can be 
> instrumented to send the tracing information.



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