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39 lines
946 B
Go
39 lines
946 B
Go
// nolint:goimports
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//go:build !freebsd && !windows
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// +build !freebsd,!windows
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package cmd
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import (
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"syscall"
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log "github.com/sirupsen/logrus"
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)
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func setSystemConcurrentConnectionLimit(limit int64) {
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var rLimit syscall.Rlimit
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if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rLimit); err != nil {
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log.Fatalln(err)
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}
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originalLimit := rLimit.Cur
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rLimit.Cur = uint64(limit)
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if err := syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rLimit); err != nil {
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log.Fatalln(err)
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}
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log.Traceln("Max process connection count changed from system limit of", originalLimit, "to", limit)
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}
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func getMaximumConcurrentConnectionLimit() int64 {
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var rLimit syscall.Rlimit
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if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rLimit); err != nil {
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log.Fatalln(err)
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}
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// Return the limit to 70% of max so the machine doesn't die even if it's maxed out for some reason.
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proposedLimit := int64(float32(rLimit.Max) * 0.7)
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return proposedLimit
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}
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