Re: Big number of connections
От | Moreno Andreo |
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Тема | Re: Big number of connections |
Дата | |
Msg-id | 57027D7B.1040301@evolu-s.it обсуждение исходный текст |
Ответ на | Re: Big number of connections (Pavel Stehule <pavel.stehule@gmail.com>) |
Ответы |
Re: Big number of connections
Re: Big number of connections |
Список | pgsql-performance |
Il 04/04/2016 15:33, Pavel Stehule ha scritto: > > > PostgreSQL doesn't contain integrated pooler - so any connection to > Postgres enforces one PostgreSQL proces. A performance benchmarks is > showing maximum performance about 10x cores. With high number of > connections you have to use low size of work_mem, what enforces can > have negative impact on performance too. Too high number of active > PostgreSQL processes increase a risk of performance problems with spin > locks, etc. :-O I wasn't absolutely aware of this thing... is there a way to monitor active connections, or at least to report when they grow too much? (say, I have an 8-core system and want to track down if, and when, active connections grow over 80) Thanks Moreno.-
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