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24 lines
579 B
Go
24 lines
579 B
Go
// +build !windows,!plan9,!nacl
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package caddy
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import (
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"fmt"
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"syscall"
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)
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// checkFdlimit issues a warning if the OS limit for
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// max file descriptors is below a recommended minimum.
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func checkFdlimit() {
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const min = 8192
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// Warn if ulimit is too low for production sites
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rlimit := &syscall.Rlimit{}
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err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, rlimit)
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if err == nil && rlimit.Cur < min {
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fmt.Printf("WARNING: File descriptor limit %d is too low for production servers. "+
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"At least %d is recommended. Fix with \"ulimit -n %d\".\n", rlimit.Cur, min, min)
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}
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}
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