On Mon, Jul 15, 2024 at 11:06 AM Adrian Klaver <adrian.kla...@aklaver.com> wrote:
> On 7/15/24 07:53, Ron Johnson wrote: > > On Mon, Jul 15, 2024 at 10:35 AM Peter J. Holzer <hjp-pg...@hjp.at > > <mailto:hjp-pg...@hjp.at>> wrote: > > [snip] > > > > > > Is it possible that some other process created an entry in > > rel_group_user between these two queries? > > > > That was, in fact, the problem. At just the wrong time to impact one of > > the child databases (TAPd), but not the other two (TAPb and TAPc). > > > > TAPd=# select * from rel_group_user > > where user_id between 1100 and 1300 > > order by user_id; > > user_id | group_id | modified_by | modified_on > > ---------+----------+-------------+------------------------- > > 1133 | 2 | 1133 | 2024-07-15 08:43:35.669 > > 1142 | 2 | 1142 | 2024-07-15 09:05:58.451 > > 1147 | 2 | 1147 | 2024-07-15 09:30:37.169 > > 1158 | 2 | 1158 | 2024-07-15 09:36:45.142 > > 1197 | 2 | 1197 | 2024-07-15 09:52:58.477 > > 1210 | 2 | 1210 | 2024-07-15 02:42:09.355 > <<<<<<<<<<<<< > > Time travel? > 😞 > > 2024-07-15 02:41:15 Deleting from FISPTAPPGS401DA/TAPd.public.access_user > DELETE FROM public.access_user; > > Or do the cron jobs take that long to execute? > The deletes from 26*3 tables (the same 26 tables in three children) took from 02:40:02 to 02:41:47. Then a bunch of COPY statements run (pg_dump from the federation master, then COPY to the federation children). Must be done in a specific order. How is modified_on created? > It's updated by the application. > > 1229 | 2 | 1229 | 2024-07-15 08:33:48.443 > > 1242 | 2 | 1242 | 2024-07-15 10:29:51.176 > > 1260 | 2 | 1260 | 2024-07-15 07:36:21.182 > > 1283 | 2 | 1283 | 2024-07-15 09:48:25.214 > > 1288 | 2 | 1288 | 2024-07-15 08:10:33.609 > > (11 rows) > > > > TAPd=# select user_id, login_id, created_on, modified_on > > TAPd-# from public.access_user > > TAPd-# where user_id = 1210; > > user_id | login_id | created_on | modified_on > > > ---------+------------+-------------------------+------------------------- > > 1210 | JORIEUSER3 | 2023-10-20 11:54:24.562 | 2024-07-15 > 02:42:09.355 > > (1 row) > > -- > Adrian Klaver > adrian.kla...@aklaver.com > >
