Comments (9)
You can pass the same parameters you pass to the ngx keepalive method to the pg object's keepalive method
https://github.com/leafo/pgmoon#success-err--postgreskeepalive
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But I didn't find parameters in the source code of pgmoon/init.moon and pgmoon/socket.lua.
By the way, would you please upload pgmoon to http://opm.openresty.org/ ? So I can use opm command to update pgmoon.
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@gzliudan the ...
is used to pas parameters through to openresty, so their names aren't explicitly listed in this project's source code
I updated the package on opm
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thanks a lot. I updated pgmoon through opm command.
Can you give an example how to set parameters of connection pool?
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-- when you want to return the connection to the pool:
pg:keepalive(timeout, pool_size)
-- if you need to configure the pool name:
pgmoon.new({
pool = "custom pool name",
-- ...
})
Generally you don't need to configure the pool name since it will choose a reasonable default based on connection settings.
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Thank you very much.
Does the unit of timeout is second? What happenes if pool_size is different value when call pg:keepalive with last time.
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Check out the docs https://github.com/openresty/lua-nginx-module#tcpsocksetkeepalive
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Thank you again. Maybe it's better update ReadMe.
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52 closed, continue here.
There are similar issues: 47, 64
How to limit connections in openresty? The answer is here
Basically, we cannot strictly limit connections, in practice, lua_socket_pool_size
or #tcpsocksetkeepalive
is both overflow-able, that's why cosocket has huge concurrency.
openresty group has more details, for example this
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Related Issues (20)
- support ipv6 by using luasocket HOT 1
- What should I do if error happens when using pg:query ? HOT 1
- Implement extended query protocol HOT 1
- attempt to call method 'keepalive' (a nil value) HOT 1
- [PostgreSQL 14.1] Why is the connection wrong and the encryption method is scram-sha-256? HOT 2
- It works in neovim!
- unable to read data from frontend HOT 4
- bad request on repeated requests HOT 3
- multi-hosts HOT 1
- pgmoon support automatic master-slave switch HOT 1
- Add locking to query functions HOT 1
- authentication exchange unsuccessful in postgresql 15 scram-sha-256 in scram_sha_256_auth
- lua entry thread aborted: runtime error: attempt to yield across C-call boundary HOT 2
- multiple statements in one query HOT 2
- Support all array types
- postgres:query() does not return error as 2. parameter
- Socket pool getreusedtimes function HOT 1
- Pool violation after v1.13 HOT 2
- Connection pooling outside of OpenResty?
- which pgmoon version can connect to postgresql 15 ?
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