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https://issues.apache.org/jira/browse/HDDS-6441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17506630#comment-17506630
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Ethan Rose commented on HDDS-6441:
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Thanks for the info and offline discussion Shawn. We determined that SCM has 3
healthy replicas of the container, and the one with missing .container file is
not being tracked by SCM. Most likely, the container was over-replicated at
some point, and SCM tried to delete this extra replica. The delete failed part
way through due to some IO error, which is why the .container file and empty
db.checkpoints directories were deleted from the metadata directory, but other
artifacts remained. I have filed HDDS-6449 as a follow-up to alter the
datanode's delete operations so that artifacts can be removed after delete
failures.
We can continue using this Jira for the incomplete upload issue.
> Ozone metadata does not align with underlying blocks when there are many
> incomplete uploads happens
> ---------------------------------------------------------------------------------------------------
>
> Key: HDDS-6441
> URL: https://issues.apache.org/jira/browse/HDDS-6441
> Project: Apache Ozone
> Issue Type: Bug
> Components: Ozone Datanode
> Affects Versions: 1.2.0
> Reporter: Shawn
> Assignee: Ethan Rose
> Priority: Major
>
> Ozone metadata does not align with underlying blocks when there are many
> incomplete uploads happens. I have a cluster which has a very few objects.
> But the datanode usage tells me I almost run out of space.
> ????
> Usage info for datanode with UUID f50108f1-d8bf-44e3-abed-6e77c91f994d:
> Capacity : 8802545958912B
> SCMUsed : 8802128257024B (99.99525%)
> Remaining : 74715136B (0.00085%)
> Usage info for datanode with UUID 2bdb3198-b71f-4153-9663-e3b349c6f82a:
> Capacity : 8802545958912B
> SCMUsed : 8802133102592B (99.99531%)
> Remaining : 76824576B (0.00087%)
> Usage info for datanode with UUID d5644a36-b967-44a6-a736-4bd2013c2b86:
> Capacity : 8793955991552B
> SCMUsed : 8793311227904B (99.99267%)
> Remaining : 291676160B (0.00332%)
> ...
>
> Also I see there are lots of errors in logs, complaining out of disk space
> and also report missing .container files as below:
> ????
> 2022-03-10 03:56:02 ERROR Thread-6 ContainerReader:159 - Missing .container
> file for ContainerID: 15221
>
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