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https://issues.apache.org/jira/browse/KUDU-1764?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon resolved KUDU-1764.
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Resolution: Fixed
Fix Version/s: 1.2.0
> Log block manager leaks disk space at the end of full containers
> ----------------------------------------------------------------
>
> Key: KUDU-1764
> URL: https://issues.apache.org/jira/browse/KUDU-1764
> Project: Kudu
> Issue Type: Bug
> Components: fs
> Affects Versions: 1.0.0, 1.1.0
> Reporter: Todd Lipcon
> Assignee: Adar Dembo
> Priority: Critical
> Fix For: 1.2.0
>
>
> 阿香 reported on the mailing list that his total disk space usage is
> significantly more than the metric reported by the LBM usage metric.
> Adar and I investigated and found the likely cause: when writing to LBM
> containers, the LBM preallocates disk space at the end of the file where the
> next blocks will be written. However, the preallocated space can extend past
> the "full" container size, and when the container is declared full, we don't
> truncate or punch away that preallocated space.
> Thus, even when a container has been mostly punched out, we still end up with
> ~15-30MB of wasted disk space at the end.
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