add additional protection for nmon external

bin/nmon_external_cmd/nmon_external_snap.sh

@@ -22,6 +22,14 @@
 # - nmon_external: manage any number of fields without transposition
 # - nmon_external_transposed: manage any number of fields with a notion of device / value
 
+# Do no try to do anything unless the NMON_EXTERNAL_DIR variable has been correctly set
+# we exit without any error code, the situation is not expected but we do not want to generate bad data in nmon data
+
+if [ "$NMON_EXTERNAL_DIR" = "" ]
+then
+   exit 0
+fi
+
 # CAUTION: ensure your custom command does not output any comma within the field name and value
 
 # Number of running processes

bin/nmon_external_cmd/nmon_external_start.sh

@@ -6,8 +6,9 @@
 # Disclaimer:  this provided "as is".  
 # Date - March 2017
 # Guilhem Marchand 2017/03/18, initial version
+# Guilhem Marchand 2017/03/29, protect against unexpecting failure in NMON_EXTERNAL_DIR getting value
 
-# Version 1.0.0
+# Version 1.0.01
 
 # For AIX / Linux / Solaris
 
@@ -22,6 +23,14 @@
 # - nmon_external: manage any number of fields without transposition
 # - nmon_external_transposed: manage any number of fields with a notion of device / value
 
+# Do no try to do anything unless the NMON_EXTERNAL_DIR variable has been correctly set
+# we exit without any error code, the situation is not expected but we do not want to generate bad data in nmon data
+
+if [ "$NMON_EXTERNAL_DIR" = "" ]
+then
+   exit 0
+fi
+
 # CAUTION: ensure your custom command does not output any comma within the field name and value
 
 # number of running processes

default/app.conf

@@ -16,4 +16,4 @@ label = TA-nmon
 [launcher]
 author = Guilhem Marchand
 description = Technical Addon for Nmon Performance Monitor
-version = 1.3.06
+version = 1.3.07