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refactor: remove sysctl dependency from start command #4068

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merged 2 commits into from
Dec 2, 2024
+6 −6
Merged

refactor: remove sysctl dependency from start command #4068

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4403cd4
remove sysctl dependency from start command
mircea-c Nov 28, 2024
88a86d2
Merge branch 'main' into refactor/remove-sysctl-dependency
mircea-c Dec 2, 2024
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12 changes: 6 additions & 6 deletions cmd/celestia-appd/cmd/start.go
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,6 @@ import (
"net"
"net/http"
"os"
"os/exec"
"path/filepath"
"runtime/pprof"
"strings"
Expand Down Expand Up @@ -580,6 +579,8 @@ sudo sysctl -p

Then verify BBR is enabled:
sysctl net.ipv4.tcp_congestion_control
or
cat /proc/sys/net/ipv4/tcp_congestion_control

This node will get worse p2p performance using a different congestion control algorithm.
If you need to bypass this check use the --force-no-bbr flag.
Expand All @@ -594,16 +595,15 @@ If you need to bypass this check use the --force-no-bbr flag.
return nil
}

cmd := exec.Command("sysctl", "net.ipv4.tcp_congestion_control")
output, err := cmd.Output()
file, err := os.ReadFile("/proc/sys/net/ipv4/tcp_congestion_control")
if err != nil {
fmt.Print(warning)
return fmt.Errorf("failed to execute 'sysctl net.ipv4.tcp_congestion_control' %w", err)
return fmt.Errorf("failed to read file '/proc/sys/net/ipv4/tcp_congestion_control' %w", err)
}

if !strings.Contains(string(output), "bbr") {
if !strings.Contains(string(file), "bbr") {
fmt.Print(warning)
return fmt.Errorf("BBR not enabled because output %v does not contain 'bbr'", string(output))
return fmt.Errorf("BBR not enabled because output %v does not contain 'bbr'", string(file))
}

return nil
Expand Down
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