Update_rows_v1 event on table cawikimedia.archive: Duplicate entry '1291' for key 'ar_revid_uniq', Error_code: 1062: handler error HA_ERR_FOUND_DUPP_KEY: the event's master log db2074-bin.001934, end_log_pos 695355661
It broke last night at db2074-bin.001934:695355241.
Maybe all of s3 codfw has issues, but only showing up at the ROW replication host? Alternatively, only occurring at the only host using filters and 900+ wikis.