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Platform sanity checks (#2271)

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* Platform sanity checks

* Don't yell about `root` because Docker
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Neil Alexander 2022-03-11 17:27:12 +00:00 • committed by GitHub
parent 507a8e6773
commit 01d71a767d
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22
setup/base/sanity_unix.go Normal file
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//go:build linux || darwin || netbsd || freebsd || openbsd || solaris || dragonfly || aix
// +build linux darwin netbsd freebsd openbsd solaris dragonfly aix
package base
import (
"syscall"
"github.com/sirupsen/logrus"
)
func platformSanityChecks() {
// Dendrite needs a relatively high number of file descriptors in order
// to function properly, particularly when federating with lots of servers.
// If we run out of file descriptors, we might run into problems accessing
// PostgreSQL amongst other things. Complain at startup if we think the
// number of file descriptors is too low.
var rLimit syscall.Rlimit
if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rLimit); err == nil && rLimit.Cur < 65535 {
logrus.Warnf("IMPORTANT: Process file descriptor limit is currently %d, it is recommended to raise the limit for Dendrite to at least 65535 to avoid issues", rLimit.Cur)
}
}