[jira] [Created] (CASSANDRA-16104) Wrong warning about data volumes capacity

["Dmitrii Saprykin (Jira)" <ji...@apache.org>]

Dmitrii Saprykin created CASSANDRA-16104:
--------------------------------------------

             Summary: Wrong warning about data volumes capacity
                 Key: CASSANDRA-16104
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16104
             Project: Cassandra
          Issue Type: Bug
            Reporter: Dmitrii Saprykin


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 cassandar 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}





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