From ec28ae6c25698aea7778a9bd94fafb8e316c5341 Mon Sep 17 00:00:00 2001
From: Adrian Sevcenco <adrian.sevcenco@cern.ch>
Date: Fri, 26 Jul 2019 12:32:50 +0300
Subject: [PATCH] cms_monPerf : cleanup descriptors after usage

---
 utils/cms_monPerf | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/utils/cms_monPerf b/utils/cms_monPerf
index 65381a68375..65b20953d53 100755
--- a/utils/cms_monPerf
+++ b/utils/cms_monPerf
@@ -83,9 +83,12 @@ while(true); do # keep infinte loop
     done
 
     CPU=$(< /dev/fd/${cpu_util})
+    eval "exec ${cpu_util}<&-"
+
     for NET_FD in ${LIST_OF_NET_FD}; do # select from all network interfaces the one with the biggest load
         THIS_NET_LOAD=$(< /dev/fd/${NET_FD})
         [[ "${THIS_NET_LOAD}" -gt "${NET_LOAD}" ]] && NET_LOAD=${THIS_NET_LOAD}
+        eval "exec ${NET_FD}<&-"
     done
 
     echo -ne "${LOAD5} ${CPU} ${MEM} ${PGIO} ${NET_LOAD}\n"