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https://issues.apache.org/jira/browse/CASSANDRA-17267?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17478311#comment-17478311
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Paulo Motta commented on CASSANDRA-17267:
-----------------------------------------
[~brandon.williams] I found this while working on CASSANDRA-16843. Can you take
a look since it's somewhat related?
If the approach looks good I will work on more tests (secondary index) and fix
existing tests, as well as port to other branches - this might affect 3.0 too.
> 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
>
> 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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