It should become basically empty after the clean up in T183490: MCR schema migration stage 4: Migrate External Store URLs (wmf production).
Progress:
- s1
- s2
- s3
- s4
- s5
- s6
- s7
- s8
Impact:
- s5: Around 30GB per replica (https://grafana.wikimedia.org/d/000000377/host-overview?orgId=1&var-server=db1200&var-datasource=thanos&var-cluster=mysql&viewPanel=28&from=1735811077729&to=1735818553270)
- s6: Around 50GB per replica: https://grafana.wikimedia.org/d/000000377/host-overview?orgId=1&var-server=db1180&var-datasource=thanos&var-cluster=mysql&viewPanel=28&from=1736426614056&to=1736427185786
- s3: Around 70GB per replica: https://grafana.wikimedia.org/d/000000377/host-overview?orgId=1&var-server=db1157&var-datasource=thanos&var-cluster=mysql&viewPanel=28&from=1737768824979&to=1737771031754
- s7: 50GB per replica: https://grafana.wikimedia.org/d/000000377/host-overview?orgId=1&var-server=db1158&var-datasource=thanos&var-cluster=mysql&viewPanel=28&from=1738573780752&to=1738577131030
- s2: 50GB per replica: https://grafana.wikimedia.org/d/000000377/host-overview?orgId=1&var-server=db1156&var-datasource=thanos&var-cluster=mysql&viewPanel=28&from=1738844753660&to=1738845529936
- s4: Around 30GB per replica:: https://grafana.wikimedia.org/d/000000377/host-overview?orgId=1&var-server=db1160&var-datasource=thanos&var-cluster=mysql&viewPanel=28&from=1741257039956&to=1741261708769
- s1: Around 60GB per replica:: https://grafana.wikimedia.org/d/000000377/host-overview?orgId=1&var-server=db1169&var-datasource=thanos&var-cluster=mysql&viewPanel=28&from=1746521611898&to=1746523950002
- s8: Around 84GB per replica https://grafana.wikimedia.org/d/000000377/host-overview?orgId=1&refresh=5m&var-server=db1167&var-datasource=000000026&var-cluster=mysql&viewPanel=panel-28&from=2025-06-17T10:04:57.845Z&to=2025-06-17T10:56:41.152Z&timezone=utc