[HDDS-1829] On OM reload/restart OmMetrics#numKeys should be updated

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.5.0
• Component/s: OM HA, Ozone Manager
• Labels: pull-request-available
• Target Version/s: 0.5.0
• Assignee: Siyao Meng
• Reporter: Hanisha Koneru
• Created: 19/Jul/19 02:17
• Updated: 10/Jan/24 23:35
• Resolved: 08/Aug/19 20:38

Description

When OM is restarted or the state is reloaded, OM Metrics is re-initialized. The saved numKeys value might not be valid as the DB state could have changed. Hence, the numKeys metric must be updated with the correct value on metrics re-initialization.

Issue Links

• is related to: HDDS-10110 Use RocksDB key count estimates instead of OM metrics file
• requires: HDDS-1649 On installSnapshot notification from OM leader, download checkpoint and reload OM state
• links to: GitHub Pull Request #1164
• links to: GitHub Pull Request #1183
• links to: GitHub Pull Request #1187