Re: Max connections reached without max connections reached

Поиск
Список
Период
Сортировка
От James Sewell
Тема Re: Max connections reached without max connections reached
Дата
Msg-id CAANVwEssH43T3qHwk46idFAAeMb4neeOxn+AXjmyQVbirU1=LA@mail.gmail.com
обсуждение исходный текст
Ответ на Re: Max connections reached without max connections reached  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Max connections reached without max connections reached
Re: Max connections reached without max connections reached
Список pgsql-general
Дерево обсуждения
What are you looking at to claim the number of connections is under 600?
Maybe there's some disconnect between what you're measuring and what the
database thinks.

A different line of thought is that ProcArray slots can be consumed by
things that aren't client connection processes, in particular
(1) parallel-query workers
(2) autovacuum workers
Looking into pg_stat_activity when you see this issue might help
clarify that.

Sorry, I could have been clearer - pg_stat_activity is what I'm looking at - I'm recording connection info from here every 15 seconds (from a superuser account so I don't get locked out). It never peaks above 300 (in fact when the incident happens no new connections can come in so it falls to around 100) - yet I'm seeing the log lines claim that I'm still hitting 597 (600 - 3 reserved). 

If I measure from `ps  -ef | grep postgres` and look at the connections then I can see that with the startup connections I am hitting this limit.

So client processes which are listed to the OS as "startup" ARE counted towards the 597 connections, but are NOT reported in pg_stat_activity

James

The contents of this email are confidential and may be subject to legal or professional privilege and copyright. No representation is made that this email is free of viruses or other defects. If you have received this communication in error, you may not copy or distribute any part of it or otherwise disclose its contents to anyone. Please advise the sender of your incorrect receipt of this correspondence.

В списке pgsql-general по дате отправления:

Предыдущее
От: Shaozhong SHI
Дата:
Сообщение: Re: Regex for Word space Word space Word ....
Следующее
От: Adrian Klaver
Дата:
Сообщение: Re: Max connections reached without max connections reached