TMP: add a ctdb snapshot of current ctdb master (git://git.samba.org/ctdb.git) to...

[obnox/samba/samba-obnox.git] / ctdb / config / events.d / 40.fs_use

diff --git a/ctdb/config/events.d/40.fs_use b/ctdb/config/events.d/40.fs_use
new file mode 100644 (file)
index 0000000..abbc17e
--- /dev/null
+++ b/ctdb/config/events.d/40.fs_use
@@ -0,0 +1,52 @@
+#!/bin/sh
+# ctdb event script for checking local file system utilization
+
+. $CTDB_BASE/functions
+loadconfig
+
+case "$1" in 
+    monitor)
+        # check each specified fs to be checked
+        # config format is <fs_mount>:<fs_threshold>
+        for fs in $CTDB_CHECK_FS_USE
+        do
+            # parse fs_mount and fs_threshold
+            fs_mount=`echo "$fs" | awk -F : '{print $1}'`
+            fs_threshold=`echo "$fs" | awk -F : '{print $2}'`
+
+            # check if given fs_mount is existing directory
+            if [ ! -d "$fs_mount" ]; then
+                echo "$0: Directory $fs_mount does not exist"
+                exit 1
+            fi
+
+            # check if given fs_threshold is number
+            if ! (echo "$fs_threshold" | egrep -q '^[0-9]+$')  ; then
+                echo "$0: Threshold $fs_threshold is invalid number"
+                exit 1
+            fi
+
+            # get utilization of given fs from df
+            fs_usage=`df -kP $fs_mount | grep '%' | awk {'print $5'} | sed 's/%//g' | tail -n 1`
+
+            # check if fs_usage is number
+            if ! (echo "$fs_usage" | egrep -q '^[0-9]+$') ; then
+                echo "$0: FS utilization $fs_usage is invalid number"
+                exit 1
+            fi
+
+            # check if fs_usage is higher than or equal to fs_threshold
+            if [ "$fs_usage" -ge "$fs_threshold" ] ; then
+                echo "ERROR: Utilization of $fs_mount ($fs_usage%) is higher than threshold ($fs_threshold%)"
+                exit 1
+            fi
+        done
+
+       ;;
+
+    *)
+       ctdb_standard_event_handler "$@"
+       ;;
+esac
+
+exit 0