[jira] [Commented] (HDDS-11643) Investigate time based SCM snapshot/transaction flush not working

["Ivan Zlenko (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDDS-11643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17921666#comment-17921666 ] 

Ivan Zlenko commented on HDDS-11643:
------------------------------------

[~erose][~sumit4iit] can't reproduce this issue: after setting ozone.scm.ha.ratis.server.snapshot.creation.gap low enough for non-active cluster everything is working correctly. 

> Investigate time based SCM snapshot/transaction flush not working
> -----------------------------------------------------------------
>
>                 Key: HDDS-11643
>                 URL: https://issues.apache.org/jira/browse/HDDS-11643
>             Project: Apache Ozone
>          Issue Type: Bug
>          Components: SCM
>            Reporter: Ethan Rose
>            Priority: Major
>
> Per [this GitHub discussion|https://github.com/apache/ozone/discussions/7239#discussioncomment-11027931], it seems that the time based snapshot implemented in HDDS-8508 may not be working correctly. The observed behavior is that block deletes in SCM do not progress until {{ozone admin containerbalancer start}} is called. This coincidentally invokes a [manual buffer flush|https://github.com/apache/ozone/blob/bd8bb39468ed1693b94b75ef85db4710cd693618/hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/ha/StatefulServiceStateManagerImpl.java#L69], and only after this it is observed that deletes resume from SCM. It seems that the time based flush is not taking effect automatically.



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