[CASSANDRA-16451] Add ability to ttl snapshots

• Type: Improvement
• Status: In Progress
• Priority: Normal
• Resolution: Unresolved
• Fix Version/s: 5.x
• Component/s: Local/Snapshots, Tool/nodetool
• Labels: gsoc2021 mentor pull-request-available
• Change Category: Operability
• Complexity: Normal
• Platform: All
• Assignee: Abuli Palagashvili
• Reporter: Paulo Motta

Authors

Abuli Palagashvili

Reviewers

Paulo Motta

• Created: 15/Feb/21 21:22
• Updated: 07/Mar/23 10:53

Description

It should be possible to add a TTL to snapshots, after which it automatically cleans itself up.

This will be useful together with the auto_snapshot option, where you want to keep an emergency snapshot in case of accidental drop or truncation but automatically remove it after a specified period when it's no longer useful. So in addition to allowing a user to specify a snapshot ttl on nodetool snapshot we should have a auto_snapshot_ttl option that allows a user to set a ttl for automatic snaphots on drop/truncate.

Issue Links

• is depended upon by: CASSANDRA-16843 List snapshots of dropped tables
• is related to: CASSANDRA-10383 Disable auto snapshot on selected tables.
• relates to: CASSANDRA-16791 Add auto_snapshot_ttl table option
• relates to: CASSANDRA-16793 Add snapshot_before_compaction_ttl table option
• relates to: CASSANDRA-16860 Add --older-than option to nodetool clearsnapshot
• links to: cassandra tool for snapshot management
• links to: GitHub Pull Request #69
• links to: HBASE-22648: Snapshot TTL
• links to: HBASE-22760: Stop/Resume Snapshot Auto-Cleanup activity with shell command
• links to: Truncating the data create the snapshot in Cassandra consuming unnecessary space

Sub-Tasks

• Add TTL support to nodetool snapshots: Resolved
• Add auto_snapshot_ttl configuration: Resolved
• Add auto_snapshot_ttl table option: Open
• Add snapshot_before_compaction_ttl configuration: Triage Needed
• Add snapshot_before_compaction_ttl table option: Triage Needed
• Add signature to snapshot manifest json: Triage Needed
• Add documentation to snapshot ttl etc: Resolved