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Posted to issues@ozone.apache.org by "Ritesh Shukla (Jira)" <ji...@apache.org> on 2023/09/21 16:57:00 UTC

[jira] [Commented] (HDDS-9083) Possible deadlock between SCM & Datanodes regarding secret keys initializing

    [ https://issues.apache.org/jira/browse/HDDS-9083?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17767646#comment-17767646 ] 

Ritesh Shukla commented on HDDS-9083:
-------------------------------------

[~duongnguyen]can this be closed?

> Possible deadlock between SCM & Datanodes regarding secret keys initializing
> ----------------------------------------------------------------------------
>
>                 Key: HDDS-9083
>                 URL: https://issues.apache.org/jira/browse/HDDS-9083
>             Project: Apache Ozone
>          Issue Type: Bug
>            Reporter: Duong
>            Assignee: Duong
>            Priority: Major
>
> In an existing cluster, for the first time upgrading to an Ozone version that uses symmetric secret keys (HDDS-7733), SCM and Datanodes seems to fall in a cyclic dependency during initialization.
>  # SCM needs to receive (healthy) heartbeats from its known datanodes to escape safe mode. For now, SCM only initializes secret keys on an SCM leader ready, and it looks like that doesn't happen until SCM escapes safe mode.
>  # During startup, Datanodes need to get the current active secret keys. For now, this call (with a long chain of retries) is made before datanodes schedule heartbeat reporting.



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