Merge pull request #464 from opendbteam/master

New plugin: memory usage by user

plugins/processes/proc_mem_by_user

@@ -0,0 +1,42 @@
+#!/bin/sh
+#
+# (c) 2014, Gilles Fauvie <gfauvie@opendbteam.com>
+# Based on the 'du_multidirs' plugin, written by Christian Kujau <lists@nerdbynature.de>
+#
+# Configure it by using the processes env var, i.e.:
+#
+# WARNING: SELINUX can block this plugin
+#
+# [proc_mem_by_user]
+# env.users     munin-node         jprod
+#
+
+. $MUNIN_LIBDIR/plugins/plugin.sh
+
+if [ "$1" = "autoconf" ]; then
+        echo yes
+        exit 0
+fi
+
+users=${users:="munin-node"}
+
+if [ "$1" = "config" ]; then
+        echo 'graph_title Memory usage by process by user'
+        echo 'graph_args --base 1024 -l 0'
+        echo 'graph_vlabel Bytes'
+        echo 'graph_category processes'
+        echo 'graph_info This graph shows the memory usage of several processes of one user'
+
+        for user in $users; do
+                echo "$user.label $user"
+        done
+
+#       echo "$u".warning 0
+#       echo "$u".critical 0
+
+        exit 0
+fi
+
+for user in $users; do
+        echo "$user.value " `ps u -U $user | awk 'BEGIN { sum = 0 } NR > 1 { sum += $6 }; END { print sum * 1024 }'`
+done