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https://issues.apache.org/jira/browse/HDDS-2869?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aravindan Vijayan updated HDDS-2869:
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    Summary: Handle Create pipeline & container use case in Recon.  (was: 
Handle Create pipeline use case in Recon.)

> Handle Create pipeline & container use case in Recon.
> -----------------------------------------------------
>
>                 Key: HDDS-2869
>                 URL: https://issues.apache.org/jira/browse/HDDS-2869
>             Project: Hadoop Distributed Data Store
>          Issue Type: Sub-task
>          Components: Ozone Recon
>            Reporter: Aravindan Vijayan
>            Assignee: Aravindan Vijayan
>            Priority: Major
>             Fix For: 0.5.0
>
>
> CREATE pipeline needs to be handled explicitly in Recon since it is initiated 
> in the SCM, and Recon does not know about that. 
> A pipeline is created on the Datanode through an SCM command. Currently, the 
> Datanode does not send any ACK to the SCM when it has created/deleted a 
> container. We can add an ACK command to the Create Pipeline processing in the 
> Datanode. The SCM will not consume the ACK command, but Recon can use it to 
> update its internal state. 
> Pipeline destroy is inferred in SCM through node staleness. Hence, recon 
> already takes care of that through its handlers.
> Also, Recon's pipeline manager should be stubbed so that it can not create a 
> pipeline even mistakenly.



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