| From: | "ideriha(dot)takeshi(at)fujitsu(dot)com" <ideriha(dot)takeshi(at)fujitsu(dot)com> |
|---|---|
| To: | 'Konstantin Knizhnik' <k(dot)knizhnik(at)postgrespro(dot)ru> |
| Cc: | Jaime Casanova <jaime(dot)casanova(at)2ndquadrant(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Ryan Lambert <ryan(at)rustprooflabs(dot)com>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Bruce Momjian <bruce(at)momjian(dot)us>, Dimitri Fontaine <dim(at)tapoueh(dot)org>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
| Subject: | RE: Built-in connection pooler |
| Date: | 2019-11-12 07:50:44 |
| Message-ID: | OSAPR01MB1985068ABB08A85828999460EA770@OSAPR01MB1985.jpnprd01.prod.outlook.com |
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| Lists: | pgsql-hackers |
Hi.
>From: Konstantin Knizhnik [mailto:k(dot)knizhnik(at)postgrespro(dot)ru]
>
>New version of builtin connection pooler fixing handling messages of extended
>protocol.
>
Here are things I've noticed.
1. Is adding guc to postgresql.conf.sample useful for users?
2. When proxy_port is a bit large (perhaps more than 2^15), connection failed
though regular "port" is fine with number more than 2^15.
$ bin/psql -p 32768
2019-11-12 16:11:25.460 JST [5617] LOG: Message size 84
2019-11-12 16:11:25.461 JST [5617] WARNING: could not setup local connect to server
2019-11-12 16:11:25.461 JST [5617] DETAIL: invalid port number: "-22768"
2019-11-12 16:11:25.461 JST [5617] LOG: Handshake response will be sent to the client later when backed is assigned
psql: error: could not connect to server: invalid port number: "-22768"
3. When porxy_port is 6543 and connection_proxies is 2, running "make installcheck" twice without restarting server failed.
This is because of remaining backend.
============== dropping database "regression" ==============
ERROR: database "regression" is being accessed by other users
DETAIL: There is 1 other session using the database.
command failed: "/usr/local/pgsql-connection-proxy-performance/bin/psql" -X -c "DROP DATABASE IF EXISTS \"regression\"" "postgres"
4. When running "make installcheck-world" with various connection-proxies, it results in a different number of errors.
With connection_proxies = 2, the test never ends. With connection_proxies = 20, 23 tests failed.
More connection_proxies, the number of failed tests decreased.
Regards,
Takeshi Ideriha
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