Jyotirmoy Sinha created HDDS-9431:
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Summary: [snapshot] Referenced and exclusive size not populated
properly when snapshot is created after Trash deletion
Key: HDDS-9431
URL: https://issues.apache.org/jira/browse/HDDS-9431
Project: Apache Ozone
Issue Type: Bug
Components: Snapshot
Reporter: Jyotirmoy Sinha
Steps :
# Create vol/buck/key
# Create snapshot snap1
# Delete key - moved inside .Trash
# Create snapshot snap2
# Delete .Trash of above bucket
# Create snapshot snap3
# Delete snapshot snap2
# Check referenced and exclusive size of snapshots
Expected behaviour - Referenced size of snapshot snap3 should be 0, since it
holds no keys. Exclusive size of snap1 should be equal to key size since its
the only snapshot that holds the key.
Observed behaviour - Referenced size of snapshot snap3 == snap1. Exclusive size
of snapshot snap1 = 0
Snapshot file contents -
{code:java}
# ozone fs -ls -R ofs://ozone1/vol2/buck2/.snapshot
drwxrwxrwx - om om 668 2023-10-11 07:21
ofs://ozone1/vol2/buck2/.snapshot/snap1
-rw-rw-rw- 3 om om 668 2023-10-11 07:20
ofs://ozone1/vol2/buck2/.snapshot/snap1/key1
drwxrwxrwx - om om 668 2023-10-11 07:23
ofs://ozone1/vol2/buck2/.snapshot/snap3 {code}
Snapshot info -
{code:java}
# ozone sh snapshot ls vol2/buck2
[ {
"volumeName" : "vol2",
"bucketName" : "buck2",
"name" : "snap1",
"creationTime" : 1697008874359,
"snapshotStatus" : "SNAPSHOT_ACTIVE",
"snapshotId" : "5ad6b758-d293-498d-9fdc-a5697853da65",
"snapshotPath" : "vol2/buck2",
"checkpointDir" : "-5ad6b758-d293-498d-9fdc-a5697853da65",
"referencedSize" : 668,
"referencedReplicatedSize" : 2004,
"exclusiveSize" : 0,
"exclusiveReplicatedSize" : 0
}, {
"volumeName" : "vol2",
"bucketName" : "buck2",
"name" : "snap3",
"creationTime" : 1697009036987,
"snapshotStatus" : "SNAPSHOT_ACTIVE",
"snapshotId" : "b9521b9c-0f6d-4208-993c-af66caf90c7b",
"snapshotPath" : "vol2/buck2",
"checkpointDir" : "-b9521b9c-0f6d-4208-993c-af66caf90c7b",
"referencedSize" : 668,
"referencedReplicatedSize" : 2004,
"exclusiveSize" : 0,
"exclusiveReplicatedSize" : 0
} ] {code}
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