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https://issues.apache.org/jira/browse/HDDS-2067?focusedWorklogId=318666&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-318666
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ASF GitHub Bot logged work on HDDS-2067:
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Author: ASF GitHub Bot
Created on: 26/Sep/19 00:32
Start Date: 26/Sep/19 00:32
Worklog Time Spent: 10m
Work Description: anuengineer commented on issue #1501: HDDS-2067. Create
generic service facade with tracing/metrics/logging support
URL: https://github.com/apache/hadoop/pull/1501#issuecomment-535277607
@bharatviswa504 @adoroszlai Thanks for the reviews. I have committed this
patch to the trunk branch
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Issue Time Tracking
-------------------
Worklog Id: (was: 318666)
Time Spent: 2h 10m (was: 2h)
> Create generic service facade with tracing/metrics/logging support
> ------------------------------------------------------------------
>
> Key: HDDS-2067
> URL: https://issues.apache.org/jira/browse/HDDS-2067
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Reporter: Marton Elek
> Assignee: Marton Elek
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.5.0
>
> Time Spent: 2h 10m
> Remaining Estimate: 0h
>
> We started to use a message based GRPC approach. Wen have only one method and
> the requests are routed based on a "type" field in the proto message.
> For example in OM protocol:
> {code}
> /**
> The OM service that takes care of Ozone namespace.
> */
> service OzoneManagerService {
> // A client-to-OM RPC to send client requests to OM Ratis server
> rpc submitRequest(OMRequest)
> returns(OMResponse);
> }
> {code}
> And
> {code}
> message OMRequest {
> required Type cmdType = 1; // Type of the command
> ...
> {code}
> This approach makes it possible to use the same code to process incoming
> messages in the server side.
> ScmBlockLocationProtocolServerSideTranslatorPB.send method contains the logic
> of:
> * Logging the request/response message (can be displayed with ozone insight)
> * Updated metrics
> * Handle open tracing context propagation.
> These functions are generic. For example
> OzoneManagerProtocolServerSideTranslatorPB use the same (=similar) code.
> The goal in this jira is to provide a generic utility and move the common
> code for tracing/request logging/response logging/metrics calculation to a
> common utility which can be used from all the ServerSide translators.
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