From edb0d71e87858c55091e56fb987be399ca0aafe6 Mon Sep 17 00:00:00 2001
From: Mike Reeves <luke@geekempire.com>
Date: Wed, 11 Nov 2020 11:43:28 -0500
Subject: [PATCH] Update zeekloss.sh

---
 salt/telegraf/scripts/zeekloss.sh | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/salt/telegraf/scripts/zeekloss.sh b/salt/telegraf/scripts/zeekloss.sh
index 579fdf9f2..8c134916c 100644
--- a/salt/telegraf/scripts/zeekloss.sh
+++ b/salt/telegraf/scripts/zeekloss.sh
@@ -1,5 +1,15 @@
 #!/bin/bash
 # This script returns the packets dropped by Zeek, but it isn't a percentage. $LOSS * 100 would be the percentage
+
+APP=zeekloss
+lf=/tmp/$APP-pidLockFile
+# create empty lock file if none exists
+cat /dev/null >> $lf
+read lastPID < $lf
+# if lastPID is not null and a process with that pid exists , exit
+[ ! -z "$lastPID" -a -d /proc/$lastPID ] && exit
+echo $$ > $lf
+
 ZEEKLOG=$(tac /host/nsm/zeek/logs/packetloss.log | head -2)
 declare RESULT=($ZEEKLOG)
 CURRENTDROP=${RESULT[3]}
@@ -14,4 +24,4 @@ else
   TOTAL=$((CURRENTPACKETS - PASTPACKETS))
   LOSS=$(echo $DROPPED $TOTAL / p | dc)
   echo "zeekdrop drop=$LOSS"
-fi
\ No newline at end of file
+fi