| From: | Sameer Kumar <sameer(dot)kumar(at)ashnik(dot)com> |
|---|---|
| To: | PostgreSQL General Discussion Forum <pgsql-general(at)postgresql(dot)org> |
| Subject: | Database and Table stats gets reset automatically |
| Date: | 2016-07-25 04:58:51 |
| Message-ID: | CADp-Sm5NdwVNcKL_RSyb9=4Xa+tvBdQgLVnvdLX1P_zDigO2ow@mail.gmail.com |
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| Lists: | pgsql-general |
Hi,
I have PostgreSQL v9.4.4 running in my environment. It has been up for over
2 years now. I noticed that suddenly the statistics have been reset and all
the stat tables/columns got restarted from.
This happened 2 weeks ago. I noticed only recently after I looked at the
plot over last week (which dipped suddenly for "number of tuples returned",
"number of conflicts" etc).
The columns which got reset are from pg_stat_database, pg_stat_user_tables,
pg_stat_bgwriter
As far I know no one has fired pg_stat_reset or pg_stat_reset_shared.
I noticed that the last largest value is from pg_stat_user_tables.
tup_returned (470440261405). Does the statistics get reset automatically
when the value for one of the statistics reaches the high number supported
by int4?
I am running on Red Hat 6.7.
Regards
Sameer
--
--
Best Regards
Sameer Kumar | DB Solution Architect
*ASHNIK PTE. LTD.*
101 Cecil Street, #11-11 Tong Eng Building, Singapore 069 533
T: +65 6438 3504 | M: +65 8110 0350 | www.ashnik.com
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