[jira] [Updated] (HDDS-2850) Handle Create/Delete container use case in Recon.

["Aravindan Vijayan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDDS-2850?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aravindan Vijayan updated HDDS-2850:
------------------------------------
        Parent: HDDS-1996
    Issue Type: Sub-task  (was: Bug)

> Handle Create/Delete container use case in Recon.
> -------------------------------------------------
>
>                 Key: HDDS-2850
>                 URL: https://issues.apache.org/jira/browse/HDDS-2850
>             Project: Hadoop Distributed Data Store
>          Issue Type: Sub-task
>          Components: Ozone Recon
>            Reporter: Aravindan Vijayan
>            Assignee: Aravindan Vijayan
>            Priority: Major
>
> CREATE/DELETE container needs to be handled differently in Recon since these actions are initiated in the SCM, and Recon does not know about that. 
> It may suddenly see a new container and should not throw ContainerNotFoundException for that.
> A container is created in the Datanode through an SCM command, and is deleted in the Datanode when the SCM Replication Manager finds that it is over replicated. 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/Delete Container processing in the Datanode. The SCM will not consume the ACK command, but Recon can use it to update its internal container state. 



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