Blocker for several task related to maintenance:
- Decomission old eqiad db masters
- Apply long-running schema changes.
It requires either set shards in read only mode (it can be done 1 shard at a time, but it may be extended) or failover to a secondary datacenter and temporarily stop replication.
| Status | Subtype | Assigned | Task | |
|---|---|---|---|---|
| · · · | ||||
| Resolved | None | T134476 Decommission old coredb machines (<=db1050) | ||
| Resolved | jcrespo | T69223 Schema change for page content language | ||
| Resolved | None | T155099 Database maintenance scheduled while eqiad datacenter is non primary (after the DC switchover) | ||
| Resolved | Marostegui | T147166 Apply change_tag and tag_summary primary key schema change to Wikimedia wikis | ||
| Resolved | Marostegui | T130067 Add wl_id to watchlist tables on production dbs | ||
| Resolved | Marostegui | T73563 *_minor_mime are varbinary(32) on WMF sites, out of sync with varbinary(100) in MW core | ||
| Resolved | jcrespo | T138810 Set databases as read-only or switchover to secondary datacenter | ||
| · · · |