autovacuum cannot start when connection is full

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От
ITAGAKI Takahiro
Тема
autovacuum cannot start when connection is full
Дата
Msg-id
20060825140141.55DB.ITAGAKI.TAKAHIRO@oss.ntt.co.jp
Список
Дерево обсуждения
autovacuum cannot start when connection is full ITAGAKI Takahiro <itagaki.takahiro@oss.ntt.co.jp>
Re: autovacuum cannot start when connection is full Tom Lane <tgl@sss.pgh.pa.us>
Re: autovacuum cannot start when connection is full "Guillaume Smet" <guillaume.smet@gmail.com>
Re: autovacuum cannot start when connection is full ITAGAKI Takahiro <itagaki.takahiro@oss.ntt.co.jp>
Hi hackers,

Autovacuum uses connections in superuser mode. If all connections are used,
autovacuum cannot start and the following message is written in server log.
| FATAL:  sorry, too many clients already

Is this a feature?

The default value of 'superuser_reserved_connections' is 2, so maybe
few people have seen it. Autovacuum can always start in normal use.
(I found it when I tried to make multi-processed autovacuum.)

Regards,
---
ITAGAKI Takahiro
NTT Open Source Software Center


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