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Posted to issues@ozone.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2025/01/21 12:44:00 UTC

[jira] [Updated] (HDDS-12115) RM selects replicas to delete non-deterministically if nodes are overloaded

     [ https://issues.apache.org/jira/browse/HDDS-12115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated HDDS-12115:
----------------------------------
    Labels: pull-request-available  (was: )

> RM selects replicas to delete non-deterministically if nodes are overloaded
> ---------------------------------------------------------------------------
>
>                 Key: HDDS-12115
>                 URL: https://issues.apache.org/jira/browse/HDDS-12115
>             Project: Apache Ozone
>          Issue Type: Bug
>          Components: SCM
>            Reporter: Stephen O'Donnell
>            Assignee: Stephen O'Donnell
>            Priority: Major
>              Labels: pull-request-available
>
> When RM selects nodes to delete replicas from, it sorts the replicas by datanode UUID and then iterates the list. If a node is overloaded when it is selected for delete, then rather than holding that delete for later, it skips it and tries the next replica in the list. This can result in non-deterministic delete selection, which we want to avoid.



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