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* Does aurora PostgreSQL use wal_buffers?
@ 2022-02-06 11:54 Goti <aryan.goti@gmail.com>
2022-02-06 13:25 ` Re: Does aurora PostgreSQL use wal_buffers? Julien Rouhaud <rjuju123@gmail.com>
0 siblings, 1 reply; 7+ messages in thread
From: Goti @ 2022-02-06 11:54 UTC (permalink / raw)
To: pgsql-admin@lists.postgresql.org
Hi,
Can someone shed some light as to whether aurora postgres uses wal buffers
or not? Given the way the writes are handled differently, I would like to
understand the same while it is being said in the documentation not to
change the parameter from the default value of 16MB.
Thanks in Advance!
Thanks,
Goti
^ permalink raw reply [nested|flat] 7+ messages in thread
* Re: Does aurora PostgreSQL use wal_buffers?
2022-02-06 11:54 Does aurora PostgreSQL use wal_buffers? Goti <aryan.goti@gmail.com>
@ 2022-02-06 13:25 ` Julien Rouhaud <rjuju123@gmail.com>
2022-02-06 13:43 ` Re: Does aurora PostgreSQL use wal_buffers? Goti <aryan.goti@gmail.com>
0 siblings, 1 reply; 7+ messages in thread
From: Julien Rouhaud @ 2022-02-06 13:25 UTC (permalink / raw)
To: Goti <aryan.goti@gmail.com>; +Cc: pgsql-admin@lists.postgresql.org
Hi,
On Sun, Feb 06, 2022 at 05:24:37PM +0530, Goti wrote:
>
> Can someone shed some light as to whether aurora postgres uses wal buffers
> or not? Given the way the writes are handled differently, I would like to
> understand the same while it is being said in the documentation not to
> change the parameter from the default value of 16MB.
It's unlikely that any one here can answer the question. You should ask Amazon,
not us.
^ permalink raw reply [nested|flat] 7+ messages in thread
* Re: Does aurora PostgreSQL use wal_buffers?
2022-02-06 11:54 Does aurora PostgreSQL use wal_buffers? Goti <aryan.goti@gmail.com>
2022-02-06 13:25 ` Re: Does aurora PostgreSQL use wal_buffers? Julien Rouhaud <rjuju123@gmail.com>
@ 2022-02-06 13:43 ` Goti <aryan.goti@gmail.com>
2022-02-06 14:11 ` Re: Does aurora PostgreSQL use wal_buffers? Dan Smith <j.daniel.smith1@gmail.com>
2022-02-06 14:29 ` Re: Does aurora PostgreSQL use wal_buffers? Julien Rouhaud <rjuju123@gmail.com>
2022-02-06 15:21 ` Re: Does aurora PostgreSQL use wal_buffers? Ron <ronljohnsonjr@gmail.com>
0 siblings, 3 replies; 7+ messages in thread
From: Goti @ 2022-02-06 13:43 UTC (permalink / raw)
To: Julien Rouhaud <rjuju123@gmail.com>; +Cc: pgsql-admin@lists.postgresql.org
Sure Julien. I will ask Amazon too. My intention was just to gather this
info IN CASE if someone has already an idea on this. Does that mean that I
should not be posting Aurora postgres related questions/ doubts here?
Please correct me if I am wrong!
Thanks,
Goti
On Sun, Feb 6, 2022 at 6:55 PM Julien Rouhaud <rjuju123@gmail.com> wrote:
> Hi,
>
> On Sun, Feb 06, 2022 at 05:24:37PM +0530, Goti wrote:
> >
> > Can someone shed some light as to whether aurora postgres uses wal
> buffers
> > or not? Given the way the writes are handled differently, I would like to
> > understand the same while it is being said in the documentation not to
> > change the parameter from the default value of 16MB.
>
> It's unlikely that any one here can answer the question. You should ask
> Amazon,
> not us.
>
^ permalink raw reply [nested|flat] 7+ messages in thread
* Re: Does aurora PostgreSQL use wal_buffers?
2022-02-06 11:54 Does aurora PostgreSQL use wal_buffers? Goti <aryan.goti@gmail.com>
2022-02-06 13:25 ` Re: Does aurora PostgreSQL use wal_buffers? Julien Rouhaud <rjuju123@gmail.com>
2022-02-06 13:43 ` Re: Does aurora PostgreSQL use wal_buffers? Goti <aryan.goti@gmail.com>
@ 2022-02-06 14:11 ` Dan Smith <j.daniel.smith1@gmail.com>
2 siblings, 0 replies; 7+ messages in thread
From: Dan Smith @ 2022-02-06 14:11 UTC (permalink / raw)
To: pgsql-admin <pgsql-admin@lists.postgresql.org>
If memory serves, WAL is used for data streams if enabled. Replication is
done at storage layer within region. Specific question can be sent to SA
or Product team through your account representative.
From:
https://aws.amazon.com/blogs/database/amazon-aurora-postgresql-parameters-part-1-memory-and-query-pl...
"
wal_buffers
WAL buffers are used to hold write ahead log (WAL) records that aren’t yet
written to storage. The size of the WAL buffer cache is controlled by the
wal_buffers setting. Aurora uses a log-based storage engine and changes are
sent to storage nodes for persistence. Given the difference in how writes
are handled by the Aurora storage engine, this parameter should be left
unchanged when using Aurora PostgreSQL.
"
Additional information con changes and architecture can be found in this
talk: https://m.youtube.com/watch?v=Ul-j5fKfv2k
Generally, the slides for re:Invent talks make it on to
https://www.slideshare.net/ as well.
Best regards,
Dan Smith
On Sun, Feb 6, 2022, 09:44 Goti <aryan.goti@gmail.com> wrote:
> Sure Julien. I will ask Amazon too. My intention was just to gather this
> info IN CASE if someone has already an idea on this. Does that mean that I
> should not be posting Aurora postgres related questions/ doubts here?
> Please correct me if I am wrong!
> Thanks,
>
> Goti
>
>
> On Sun, Feb 6, 2022 at 6:55 PM Julien Rouhaud <rjuju123@gmail.com> wrote:
>
>> Hi,
>>
>> On Sun, Feb 06, 2022 at 05:24:37PM +0530, Goti wrote:
>> >
>> > Can someone shed some light as to whether aurora postgres uses wal
>> buffers
>> > or not? Given the way the writes are handled differently, I would like
>> to
>> > understand the same while it is being said in the documentation not to
>> > change the parameter from the default value of 16MB.
>>
>> It's unlikely that any one here can answer the question. You should ask
>> Amazon,
>> not us.
>>
>
^ permalink raw reply [nested|flat] 7+ messages in thread
* Re: Does aurora PostgreSQL use wal_buffers?
2022-02-06 11:54 Does aurora PostgreSQL use wal_buffers? Goti <aryan.goti@gmail.com>
2022-02-06 13:25 ` Re: Does aurora PostgreSQL use wal_buffers? Julien Rouhaud <rjuju123@gmail.com>
2022-02-06 13:43 ` Re: Does aurora PostgreSQL use wal_buffers? Goti <aryan.goti@gmail.com>
@ 2022-02-06 14:29 ` Julien Rouhaud <rjuju123@gmail.com>
2 siblings, 0 replies; 7+ messages in thread
From: Julien Rouhaud @ 2022-02-06 14:29 UTC (permalink / raw)
To: Goti <aryan.goti@gmail.com>; +Cc: pgsql-admin@lists.postgresql.org
On Sun, Feb 06, 2022 at 07:13:42PM +0530, Goti wrote:
> Sure Julien. I will ask Amazon too. My intention was just to gather this
> info IN CASE if someone has already an idea on this. Does that mean that I
> should not be posting Aurora postgres related questions/ doubts here?
Those mailing list are supposed to be about vanilla postgres only, or some
closely related open source projects. For proprietary software, the best
answer you usually get is a link to the documentation, so you probably should
read their documentation directly to save some time.
^ permalink raw reply [nested|flat] 7+ messages in thread
* Re: Does aurora PostgreSQL use wal_buffers?
2022-02-06 11:54 Does aurora PostgreSQL use wal_buffers? Goti <aryan.goti@gmail.com>
2022-02-06 13:25 ` Re: Does aurora PostgreSQL use wal_buffers? Julien Rouhaud <rjuju123@gmail.com>
2022-02-06 13:43 ` Re: Does aurora PostgreSQL use wal_buffers? Goti <aryan.goti@gmail.com>
@ 2022-02-06 15:21 ` Ron <ronljohnsonjr@gmail.com>
2022-02-07 03:35 ` Re: Does aurora PostgreSQL use wal_buffers? Goti <aryan.goti@gmail.com>
2 siblings, 1 reply; 7+ messages in thread
From: Ron @ 2022-02-06 15:21 UTC (permalink / raw)
To: pgsql-admin@lists.postgresql.org
If you can't find it in the documentation, then dba.stackexchange would be
the place to ask.
On 2/6/22 7:43 AM, Goti wrote:
> Sure Julien. I will ask Amazon too. My intention was just to gather this
> info IN CASE if someone has already an idea on this. Does that mean that I
> should not be posting Aurora postgres related questions/ doubts here?
> Please correct me if I am wrong!
> Thanks,
>
> Goti
>
>
> On Sun, Feb 6, 2022 at 6:55 PM Julien Rouhaud <rjuju123@gmail.com
> <mailto:rjuju123@gmail.com>> wrote:
>
> Hi,
>
> On Sun, Feb 06, 2022 at 05:24:37PM +0530, Goti wrote:
> >
> > Can someone shed some light as to whether aurora postgres uses wal
> buffers
> > or not? Given the way the writes are handled differently, I would
> like to
> > understand the same while it is being said in the documentation not to
> > change the parameter from the default value of 16MB.
>
> It's unlikely that any one here can answer the question. You should
> ask Amazon,
> not us.
>
--
Angular momentum makes the world go 'round.
^ permalink raw reply [nested|flat] 7+ messages in thread
* Re: Does aurora PostgreSQL use wal_buffers?
2022-02-06 11:54 Does aurora PostgreSQL use wal_buffers? Goti <aryan.goti@gmail.com>
2022-02-06 13:25 ` Re: Does aurora PostgreSQL use wal_buffers? Julien Rouhaud <rjuju123@gmail.com>
2022-02-06 13:43 ` Re: Does aurora PostgreSQL use wal_buffers? Goti <aryan.goti@gmail.com>
2022-02-06 15:21 ` Re: Does aurora PostgreSQL use wal_buffers? Ron <ronljohnsonjr@gmail.com>
@ 2022-02-07 03:35 ` Goti <aryan.goti@gmail.com>
0 siblings, 0 replies; 7+ messages in thread
From: Goti @ 2022-02-07 03:35 UTC (permalink / raw)
To: Ron <ronljohnsonjr@gmail.com>; +Cc: pgsql-admin@lists.postgresql.org
Thanks a lot Dan , Julien and Ron for your inputs.
On Sun, 6 Feb 2022 at 8:51 PM, Ron <ronljohnsonjr@gmail.com> wrote:
> If you can't find it in the documentation, then dba.stackexchange would be
> the place to ask.
>
>
> On 2/6/22 7:43 AM, Goti wrote:
>
> Sure Julien. I will ask Amazon too. My intention was just to gather this
> info IN CASE if someone has already an idea on this. Does that mean that I
> should not be posting Aurora postgres related questions/ doubts here?
> Please correct me if I am wrong!
> Thanks,
>
> Goti
>
>
> On Sun, Feb 6, 2022 at 6:55 PM Julien Rouhaud <rjuju123@gmail.com> wrote:
>
>> Hi,
>>
>> On Sun, Feb 06, 2022 at 05:24:37PM +0530, Goti wrote:
>> >
>> > Can someone shed some light as to whether aurora postgres uses wal
>> buffers
>> > or not? Given the way the writes are handled differently, I would like
>> to
>> > understand the same while it is being said in the documentation not to
>> > change the parameter from the default value of 16MB.
>>
>> It's unlikely that any one here can answer the question. You should ask
>> Amazon,
>> not us.
>>
>
> --
> Angular momentum makes the world go 'round.
>
--
Thanks,
Goti
^ permalink raw reply [nested|flat] 7+ messages in thread
end of thread, other threads:[~2022-02-07 03:35 UTC | newest]
Thread overview: 7+ messages (download: mbox mbox.gz follow: Atom feed)
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2022-02-06 11:54 Does aurora PostgreSQL use wal_buffers? Goti <aryan.goti@gmail.com>
2022-02-06 13:25 ` Julien Rouhaud <rjuju123@gmail.com>
2022-02-06 13:43 ` Goti <aryan.goti@gmail.com>
2022-02-06 14:11 ` Dan Smith <j.daniel.smith1@gmail.com>
2022-02-06 14:29 ` Julien Rouhaud <rjuju123@gmail.com>
2022-02-06 15:21 ` Ron <ronljohnsonjr@gmail.com>
2022-02-07 03:35 ` Goti <aryan.goti@gmail.com>
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