Added fix.sh which is to strip out spikes from rrd files. Requires ma…

…nual configuration but only needs to be run once to fix the rrd file. Fixes issue #6

tools/fix.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+
+# Replace your rrd file name below so that it picks the correct files.
+# Duplicate the rrdtool tune options to suit your data source name you wish to strip out spikes.
+# Default value should suit most situations but feel free to adjust it further.
+
+for file in `ls | grep your_rrd_name_here`;
+do
+	echo Fixing $file
+	echo Backing up $file
+	mv $file ./old/
+	echo Tuning $file
+	# EDIT START
+	rrdtool tune ./old/$file --maximum ClosedSessions:500000
+	rrdtool tune ./old/$file --maximum OpenedSessions:500000
+	# EDIT END
+	echo Dumping $file
+	rrdtool dump ./old/$file > hax.temp
+	echo Restoring $file
+	rrdtool restore -r hax.temp $file
+	echo Cleaning up temp files
+	rm hax.temp
+	echo Fixing permissions
+	chown cacti:cacti $file
+	echo Done!
+	echo -e '\n\n\n'
+done;
+