Add new eventscript 40.fs_use that can be used to monitor file system use and flag...

diff --git a/Makefile.in b/Makefile.in
index 5fa9e98c10df0471fc56f5d74a597f2720a94da0..3a4e7d958df2d91ea8b713dd72530a0510ac1107 100755 (executable)
--- a/Makefile.in
+++ b/Makefile.in
@@ -257,6 +257,7 @@ install: all
        ${INSTALLCMD} -m 644 config/events.d/20.multipathd $(DESTDIR)$(etcdir)/ctdb/events.d
        ${INSTALLCMD} -m 644 config/events.d/31.clamd $(DESTDIR)$(etcdir)/ctdb/events.d
        ${INSTALLCMD} -m 755 config/events.d/40.vsftpd $(DESTDIR)$(etcdir)/ctdb/events.d
+       ${INSTALLCMD} -m 644 config/events.d/40.fs_use $(DESTDIR)$(etcdir)/ctdb/events.d
        ${INSTALLCMD} -m 755 config/events.d/41.httpd $(DESTDIR)$(etcdir)/ctdb/events.d
        ${INSTALLCMD} -m 755 config/events.d/50.samba $(DESTDIR)$(etcdir)/ctdb/events.d
        ${INSTALLCMD} -m 755 config/events.d/60.nfs $(DESTDIR)$(etcdir)/ctdb/events.d

diff --git a/config/events.d/40.fs_use b/config/events.d/40.fs_use
new file mode 100644 (file)
index 0000000..14d33fa
--- /dev/null
+++ b/config/events.d/40.fs_use
@@ -0,0 +1,53 @@
+#!/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_config=(`echo $fs | tr ':' '\n'`)
+            fs_mount=${fs_config[0])}
+            fs_threshold=${fs_config[1])}
+
+            # check if given fs_mount is existing directory
+            if [ ! -d "$fs_mount" ]; then
+                echo "$0: Directory $fs_mount does not exist"
+                exit 1
+            fi
+
+            # check if given fs_threshold is number
+            if ! [[ "$fs_threshold" =~ ^[0-9]+$ ]] ; then
+                echo "$0: Threshold $fs_threshold is invalid number"
+                exit 1
+            fi
+
+            # get utilization of given fs from df
+            fs_usage=`df -k $fs_mount | grep % | awk {'print $5'} | sed 's/%//g' | tail -n 1`
+
+            # check if fs_usage is number
+            if ! [[ "$fs_usage" =~ ^[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

diff --git a/packaging/RPM/ctdb.spec.in b/packaging/RPM/ctdb.spec.in
index 543f3427b5a42cbe7e305cf074bba4c0b206a6df..f397c6788ce967d955fb13b5dd43359627a7d1f9 100644 (file)
--- a/packaging/RPM/ctdb.spec.in
+++ b/packaging/RPM/ctdb.spec.in
@@ -102,6 +102,7 @@ rm -rf $RPM_BUILD_ROOT
 %{_sysconfdir}/ctdb/events.d/11.routing
 %{_sysconfdir}/ctdb/events.d/20.multipathd
 %{_sysconfdir}/ctdb/events.d/31.clamd
+%{_sysconfdir}/ctdb/events.d/40.fs_use
 %{_sysconfdir}/ctdb/events.d/40.vsftpd
 %{_sysconfdir}/ctdb/events.d/41.httpd
 %{_sysconfdir}/ctdb/events.d/50.samba