[jira] [Updated] (CASSANDRA-17267) Snapshot true size is miscalculated

["Paulo Motta (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-17267?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paulo Motta updated CASSANDRA-17267:
------------------------------------
          Fix Version/s: 3.11.13
                         4.1
                         4.0.4
    Source Control Link: https://github.com/apache/cassandra/commit/95a622305722889c321204c4bca68a3517a29aab
             Resolution: Fixed
                 Status: Resolved  (was: Ready to Commit)

Committed to cassandra-3.11 branch and merged up to {{trunk}} as {{{}95a622305722889c321204c4bca68a3517a29aab{}}}.

> Snapshot true size is miscalculated
> -----------------------------------
>
>                 Key: CASSANDRA-17267
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-17267
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Local/Snapshots
>            Reporter: Paulo Motta
>            Assignee: Paulo Motta
>            Priority: Normal
>             Fix For: 3.11.13, 4.1, 4.0.4
>
>
> As far as I understand, the snapshot "size on disk" is the total size of the snapshot, while the "true size" is the (size_on_disk - size_of_live_sstables).
> I created a snapshot on a 3.11 node without traffic and I expected the "true size" to be 0KB since the original sstables were still present, but this didn't seem to be the case:
> {noformat}
> $ nodetool listsnapshots
> Snapshot Details:
> Snapshot name Keyspace name Column family name True size Size on disk
> test          ks1           tbl1               4.86 KiB  5.69 KiB
> Total TrueDiskSpaceUsed: 4.86 KiB
> {noformat}



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