Re: OpenBSD versus semaphores
От
Mikael Kjellström
Тема
Re: OpenBSD versus semaphores
Дата
Msg-id
f5e58ccb-4433-4a30-ce8d-ec87a784be7a@mksoft.nu
Ответ на
OpenBSD versus semaphores (Tom Lane)
Список
Дерево обсуждения
OpenBSD versus semaphores Tom Lane <tgl@sss.pgh.pa.us>
Re: OpenBSD versus semaphores Thomas Munro <thomas.munro@enterprisedb.com>
Re: OpenBSD versus semaphores Tom Lane <tgl@sss.pgh.pa.us>
Re: OpenBSD versus semaphores Thomas Munro <thomas.munro@gmail.com>
Re: OpenBSD versus semaphores Abel Abraham Camarillo Ojeda <acamari@verlet.org>
Re: OpenBSD versus semaphores Mikael Kjellström <mikael.kjellstrom@mksoft.nu>
Re: OpenBSD versus semaphores Tom Lane <tgl@sss.pgh.pa.us>
On 2019-01-08 07:14, Tom Lane wrote: > I've been toying with OpenBSD lately, and soon noticed a seriously > annoying problem for running Postgres on it: by default, its limits > for SysV semaphores are only SEMMNS=60, SEMMNI=10. Not only does that > greatly constrain the number of connections for a single installation, > it means that our TAP tests fail because you can't start two postmasters > concurrently (cf [1]). > > Raising the annoyance factor considerably, AFAICT the only way to > increase these settings is to build your own custom kernel. You don't need to build your custom kernel to change those settings. Just add: kern.seminfo.semmni=20 to /etc/sysctl.conf and reboot /Mikael
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