| From: | pinker <pinker(at)onet(dot)eu> |
|---|---|
| To: | pgsql-general(at)postgresql(dot)org |
| Subject: | Sum of written buffers bigger than allocation? |
| Date: | 2018-04-08 15:28:35 |
| Message-ID: | 1523201315068-0.post@n3.nabble.com |
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| Thread: | |
| Lists: | pgsql-general |
Hi All!
First time I see that the sum of written buffers:
3765929+878326121 = 882092050 = select
pg_size_pretty(882092050::numeric*8192) = 6730 GB
is bigger than buffers_alloc value in pg_stat_bgwriter view:
buffers_alloc | 20426161 = 156 GB
buffers_checkpoint | 878599316
buffers_clean | 0
maxwritten_clean | 0
buffers_backend | 3766409
buffers_backend_fsync | 0
buffers_alloc | 20426161
It's kinda mysterious... Any explanations?
Does it mean that the same buffers were written over and over again?
--
Sent from: http://www.postgresql-archive.org/PostgreSQL-general-f1843780.html
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