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Posted to issues@ozone.apache.org by "Jyotirmoy Sinha (Jira)" <ji...@apache.org> on 2023/10/11 07:17:00 UTC

[jira] [Created] (HDDS-9428) [snapshot] Exclusive size not populated properly when an intermediate snapshot is deleted in a chain

Jyotirmoy Sinha created HDDS-9428:
-------------------------------------

             Summary: [snapshot] Exclusive size not populated properly when an intermediate snapshot is deleted in a chain
                 Key: HDDS-9428
                 URL: https://issues.apache.org/jira/browse/HDDS-9428
             Project: Apache Ozone
          Issue Type: Bug
          Components: Snapshot
            Reporter: Jyotirmoy Sinha


Steps :
 # Create vol/buck and key
 # Create snapshot snap1
 # Create snapshot snap2
 # Delete key 
 # Delete snapshot snap2
 # Create snapshot snap3 before the snap2 is reclaimed
 # Check exclusiveSize of all snapshots

Expected behaviour - exclusiveSize of snap1 should be the size of the key, since the key is now only held by that snapshot.

Observed behaviour - exclusiveSize of snap1 is 0

Snapshot contents -
{code:java}
# ozone fs -ls -R ofs://ozone1/vol1/buck1/.snapshot
drwxrwxrwx   - om om        668 2023-10-11 06:43 ofs://ozone1/vol1/buck1/.snapshot/snap1
-rw-rw-rw-   3 om om        668 2023-10-11 06:43 ofs://ozone1/vol1/buck1/.snapshot/snap1/key1
drwxrwxrwx   - om om          0 2023-10-11 07:10 ofs://ozone1/vol1/buck1/.snapshot/snap3 {code}
Snapshot details -
{code:java}
# ozone sh snapshot ls vol1/buck1
[ {
  "volumeName" : "vol1",
  "bucketName" : "buck1",
  "name" : "snap1",
  "creationTime" : 1697006634077,
  "snapshotStatus" : "SNAPSHOT_ACTIVE",
  "snapshotId" : "48ffa4d2-1751-42e5-a7be-62a6f28cadfa",
  "snapshotPath" : "vol1/buck1",
  "checkpointDir" : "-48ffa4d2-1751-42e5-a7be-62a6f28cadfa",
  "referencedSize" : 668,
  "referencedReplicatedSize" : 2004,
  "exclusiveSize" : 0,
  "exclusiveReplicatedSize" : 0
}, {
  "volumeName" : "vol1",
  "bucketName" : "buck1",
  "name" : "snap3",
  "creationTime" : 1697008218140,
  "snapshotStatus" : "SNAPSHOT_ACTIVE",
  "snapshotId" : "9e2e0a52-090c-4afe-8b4c-6288078731e2",
  "snapshotPath" : "vol1/buck1",
  "checkpointDir" : "-9e2e0a52-090c-4afe-8b4c-6288078731e2",
  "referencedSize" : 0,
  "referencedReplicatedSize" : 0,
  "exclusiveSize" : 0,
  "exclusiveReplicatedSize" : 0
} ] {code}



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