From 711f5ab38f87d634e22400426bca28365c1c3b71 Mon Sep 17 00:00:00 2001
From: Mike Reeves <luke@geekempire.com>
Date: Wed, 11 Nov 2020 11:16:47 -0500
Subject: [PATCH] Update helixeps.sh

---
 salt/telegraf/scripts/helixeps.sh | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/salt/telegraf/scripts/helixeps.sh b/salt/telegraf/scripts/helixeps.sh
index eee4f65c3..9cb4b77b7 100644
--- a/salt/telegraf/scripts/helixeps.sh
+++ b/salt/telegraf/scripts/helixeps.sh
@@ -1,5 +1,14 @@
 #!/bin/bash
 
+APP=helixeps
+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 $$ > $lf
+
 PREVCOUNTFILE='/tmp/helixevents.txt'
 EVENTCOUNTCURRENT="$(curl -s localhost:9600/_node/stats | jq '.pipelines.helix.events.out')"