added mem.apps and improved error handling and debugging for charts.d

1 files changed, 60 insertions, 0 deletions

diff --git a/charts.d/mem_apps.chart.sh b/charts.d/mem_apps.chart.sh
new file mode 100755
index 0000000000..cd04672165
--- /dev/null
+++ b/charts.d/mem_apps.chart.sh
@@ -0,0 +1,60 @@
+#!/bin/sh
+
+mem_apps_apps="netdata asterisk squid apache2 mysqld dovecot cupsd sshd named clamd smbd"
+
+# these are required for computing memory in bytes and cpu in seconds
+#mem_apps_pagesize="`getconf PAGESIZE`"
+#mem_apps_clockticks="`getconf CLK_TCK`"
+
+mem_apps_check() {
+	# this should return:
+	#  - 0 to enable the chart
+	#  - 1 to disable the chart
+
+	if [ -z "$mem_apps_apps" ]
+	then
+		echo >&2 "mem_apps: Please set mem_apps_apps='command1 command2 ...' in $confd/mem_apps_apps.conf"
+		return 1
+	fi
+	return 0
+}
+
+mem_apps_bc_finalze=
+
+mem_apps_create() {
+
+	cat <<EOF1
+CHART system.apps '' "Apps Memory" "MB" "mem" "mem" stacked 20000 $update_every
+EOF1
+
+	local x=
+	for x in $mem_apps_apps
+	do
+
+cat <<EOF1
+DIMENSION $x $x absolute 1 1024
+EOF1
+		# this string is needed later in the update() function
+		# to finalize the instructions for the bc command
+		mem_apps_bc_finalze="$mem_apps_bc_finalze \"SET $x = \"; $x;"
+	done
+	return 0
+}
+
+mem_apps_egrep="(`echo "$mem_apps_apps" | sed -e "s/^ \+//g" -e "s/ \+$//g" -e "s/ /|/g"`)"
+mem_apps_update() {
+	# do all the work to collect / calculate the values
+	# for each dimension
+	# remember: KEEP IT SIMPLE AND SHORT
+
+	echo "BEGIN system.apps"
+	ps -e -o comm,rss |\
+		egrep "^$mem_apps_egrep " |\
+		(	sed -e "s/ \+/ /g" -e "s/ /+=/g";
+			echo "$mem_apps_bc_finalze"
+		) | bc
+	echo "END"
+
+	return 0
+}
+