Back to overview
Maintenance

ClickHouse Database Upgrade

Nov 02 at 04:00am CET  –  Nov 02 at 04:30am CET
Affected services
Dashboard
GraphQL API (Registry)
Usage reporting
Usage reports processing

Resolved
Nov 02 at 04:30am CET

Hive's Clickhouse database maintenance period is ending ahead of schedule.
The total time was 30 minutes, with no interruption to service.

Updated
Nov 02 at 04:21am CET

Clickhouse DB maintenance has begun. Services will continue to operate as normal.

No downtime expected.

Created
Nov 02 at 04:00am CET

Our database provider, ClickHouse Cloud, requires us to perform a mandatory upgrade. This database is used primarily for usage metric collection and insights.

No impact to users is expected, but to further minimize risk, this maintenance is scheduled for Saturday during our least active hours.

During this upgrade:
- Tables will migrate metadata of tables and databases to Clickhouse's SharedCatalog
- DML queries (INSERT/SELECT/UPDATE/DELETE) will continue working.
- There will be a single rolling restart of the database after upgrading.

Thank you for your patience