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https://issues.apache.org/jira/browse/HDDS-12483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ivan Andika updated HDDS-12483:
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Target Version/s: 2.0.0, 1.4.2
> Quasi Closed Stuck should have 2 replicas of each origin
> --------------------------------------------------------
>
> Key: HDDS-12483
> URL: https://issues.apache.org/jira/browse/HDDS-12483
> Project: Apache Ozone
> Issue Type: Sub-task
> Components: SCM
> Reporter: Stephen O'Donnell
> Assignee: Stephen O'Donnell
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.0.0
>
>
> After the change to ensure Quasi Closed replicas only move to CLOSED when all
> 3 origin are present, some new edge cases appeared where some replicas do not
> get full replication.
> After some discussion we decided on the following for Quasi Closed Stuck
> containers:
> 1. If there is only 1 origin available, create 3 copies of it.
> 2. If there are 2 or more origins, maintain 2 copies of each origin.
> In the worse case, which is:
> Origin: 1, bcsid:10, State: Quasi_Closed
> Origin: 2, bcsid:10, State: Quasi_Closed
> Origin: 3, bcsid:11, State: Unhealthy
> This cannot move to closed as the highest BCSID is unhealthy, so 6 replicas
> will be maintained in the system - 2 from each origin.
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