Currently I'm working on upgrading a postgresql version from 9.3 to 12. The database size is around 700G.
I finished the pg_upgrade process but when I ran 'analyze_new_cluster.sh' it stucked at the first log 'vacuumdb: processing database "otdb": Generating minimal optimizer statistics (1 target)'.
Then I checked the active query, the following query has been running for several hours:
pid | db | start | lap | query
---------+-----------+-------------------------------+-----------------+------------------------------
1822933 | otdb | 2023-02-18 03:02:36.035755+08 | 04:56:41.408329 | ANALYZE pg_catalog.pg_class;
Do you know what I can do to speed up this process? Because on another Testing environment(around 300G data), this 'analyze_new_cluster.sh' only took several minutes to complete.
Thanks a lot.
