On 10/26/22 08:26, Yi Sun wrote:
On Wed, 26 Oct 2022 at 18:10, jian he <jian.universal...@gmail.com> wrote:
On Wed, Oct 26, 2022 at 11:07 AM Yi Sun <yina...@gmail.com> wrote:
Hi Guys,
Who can help me with this please? I researched but still no
result yet, thank you
On Tue, 25 Oct 2022 at 16:30, Yi Sun <yina...@gmail.com> wrote:
Hi,
There are many databases in our production patroni cluster
and it seems it is overloaded, so we decide to migrate the
busiest database to a new patroni cluster.
pgwatch2 is implemented, how to know how much CPU, RAM is
used by the database please? Then we can use it to prepare
the new patroni cluster hardware. Thank you
Best regards
Dennis
manual:
https://www.postgresql.org/docs/current/runtime-config-resource.html|
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|except |min_dynamic_shared_memory| (|integer|)|
|all other parameters are used to cap the memory. almost all
parameters mentioned "database server" which means it's on cluster
level.
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--
I recommend David Deutsch's <<The Beginning of Infinity>>
Jian
Hi Jian he
Thank you for your reply
The parameters are on cluster level, so we still can not know how much
memory is used in a specific database, for example, total memory is 64GB
1. How to get how much memory is used on cluster level? For example 40GB
2. How to get how much memory is used in a specific database? For
example 30GB, then we can prepare the new patroni cluster 32GB is enough
Thank you
Dennis
You can see connection with pg*backend* functions. You can log
connections to see which db is most commonly accessed. You can log sql
to see which table are being touched. You'll have to assume a
correlation to CPU/disc usage. What have you tried?
