| From: | Amit Langote <amitlangote09(at)gmail(dot)com> |
|---|---|
| To: | Rodrigo Barboza <rodrigombufrj(at)gmail(dot)com> |
| Cc: | "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org> |
| Subject: | Re: Question about maintenance_work_mem and shared_buffer |
| Date: | 2013-05-21 16:03:30 |
| Message-ID: | CA+HiwqFq7idrYNdLthhXOV=2jawp0k++9w1+Auzz4hHbX9b2fg@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-admin |
On Wed, May 22, 2013 at 12:07 AM, Rodrigo Barboza
<rodrigombufrj(at)gmail(dot)com> wrote:
> Hi, everyone.
> I have a doubt.
> I have a 32-bit postrgesql running with 2.5gb of shared_buffer.
> And I have maintenance_work_mem = 1gb and autovacuum_max_workers = 3.
> How maintenance_work_mem is related to shared_buffer?
They are independent settings.
> If the 3 workers uses 1gb, will the database crash?
Documentation does warn about not setting it (maintenance_work_mem) too high:
"Note that when autovacuum runs, up to autovacuum_max_workers times
this memory may be allocated, so be careful not to set the default
value too high."
http://www.postgresql.org/docs/9.3/static/runtime-config-resource.html
--
Amit Langote
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Rodrigo Barboza | 2013-05-21 16:45:49 | Re: Question about maintenance_work_mem and shared_buffer |
| Previous Message | Rodrigo Barboza | 2013-05-21 15:07:15 | Question about maintenance_work_mem and shared_buffer |