From 5825b967d29bf3e13253470e1dc516b3392bf778 Mon Sep 17 00:00:00 2001
From: sakridge <stephen@solana.com>
Date: Tue, 16 Jul 2019 14:31:15 -0700
Subject: [PATCH] Check for valid pid before kill in node stop script (#5126)

---
 net/net.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/net.sh b/net/net.sh
index 619197cf28..7fb094a31f 100755
--- a/net/net.sh
+++ b/net/net.sh
@@ -659,7 +659,9 @@ stopNode() {
       ! tmux list-sessions || tmux kill-session
       for pid in solana/{net-stats,oom-monitor}.pid; do
         pgid=\$(ps opgid= \$(cat \$pid) | tr -d '[:space:]')
-        sudo kill -- -\$pgid
+        if [[ -n \$pgid ]]; then
+          sudo kill -- -\$pgid
+        fi
       done
       for pattern in node solana- remote-; do
         pkill -9 \$pattern