Hi All,
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.
Ryan MYJ <ryanmyj@gmail.com> writes:
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;
You omitted the pg_stat_activity columns that could give some insight
into why this is waiting. The first thing I'd think of though is that
it's blocked waiting for a lock, in which case looking into pg_locks
to see what is blocking it could help.
regards, tom lane