Lianping Chen created CLOUDSTACK-2300:
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Summary: Unexpected deletion of Snapshots backups
Key: CLOUDSTACK-2300
URL: https://issues.apache.org/jira/browse/CLOUDSTACK-2300
Project: CloudStack
Issue Type: Bug
Security Level: Public (Anyone can view this level - this is the default.)
Components: Management Server
Affects Versions: 4.0.0
Environment: CloudStack Manager running on CentOS
Secondary Storage Manager running on CentOS
Hosts running on CentOS
KVM
Reporter: Lianping Chen
We defined a recurring snapshots backup policy to run daily and only keep the
most recent 2 backups. Unexpected deletion of snapshots backups happened
randomly/occasionally. The snapshot backup was created and a record for this
snapshot was created in the snapshots table of the database. The snapshot was
also listed in the Web UI. However, the snapshot backup file was deleted from
the file system of secondary storage.
It seems the following happened that causes the unexpected deletion:
CloudStack Manager sent out the CleanupSnapshotBackupCommand, with
validBackupUUIDs containing the two snapshots to keep.
Right after this CleanupSnapshotBackupCommand was sent out; a new snapshot
backup is created.
Secondary Storage VM Agent received this CleanupSnapshotBackupCommand and
executed the deletion. Because the newly created snapshot backup was not in the
validBackupUUIDs, the backup file was deleted.
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