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From "Benjamin Lerer (Jira)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-16104) Wrong warning about data volumes capacity
Date Thu, 29 Jul 2021 08:14:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-16104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17389740#comment-17389740
] 

Benjamin Lerer commented on CASSANDRA-16104:
--------------------------------------------

The patches look good to me. :-) 

> Wrong warning about data volumes capacity
> -----------------------------------------
>
>                 Key: CASSANDRA-16104
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16104
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tool/nodetool
>            Reporter: Dmitrii Saprykin
>            Assignee: Dmitrii Saprykin
>            Priority: Normal
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> I see the following warning trying to run *nodetool upgradesstables*
> {noformat}
> WARN  16:09:24 Only 34988 MB free across all data volumes. Consider adding more capacity
to your cluster or removing obsolete snapshots
> {noformat}
> This warning is wrong because the wrong storage device capacity gets tested.
> All my cassandra data paths are subdirectories of */data* mount point which has enough
of space:
> {noformat}
> $ df -h /data
> Filesystem      Size  Used Avail Mounted on
> .................     1.2T 200G  1T  /data
> {noformat}
> However what Warning reports is a OS mount which has nothing to do with Cassandra configuration:
> {noformat}
> df -h /
> Filesystem      Size  Used Avail Use% Mounted on
> ............        40G  5.7G   35G  15% /
> {noformat}
> I see this error running Cassandra 3.0.22



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