extras: Add defrag scripts to the repository

Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 478 (Add defrag scripts into glusterfs)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=478

1 files changed, 37 insertions, 0 deletions

diff --git a/extras/scale-n-defrag.sh b/extras/scale-n-defrag.sh
new file mode 100644
index 00000000000..1031b3931a8
--- /dev/null
+++ b/extras/scale-n-defrag.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+
+# This script runs over the GlusterFS mountpoint (from just one client)
+# to handle the distribution of 'data', after the distribute translator's 
+# subvolumes count changes.
+#
+# (c) 2009 Gluster Inc, <http://www.gluster.com/>
+# 
+# 
+# Make sure the following variables are properly initialized
+
+MOUNTPOINT=/tmp/testdir
+directory_to_be_scaled="${MOUNTPOINT}/"
+
+logdir=$(dirname $0)
+cd $logdir
+LOGDIR=$(pwd)
+cd -
+
+# The below command is enough to make sure the new layout will be scaled across new 
+# nodes.
+find ${directory_to_be_scaled} -type d -exec setfattr -x "trusted.glusterfs.dht" {} \;
+
+# Now do a lookup on files so the scaling/re-hashing is done
+find ${directory_to_be_scaled}  > /dev/null
+
+
+# copy the defrag (to copy data across for new nodes (for linkfiles))
+# 
+
+
+cd ${directory_to_be_scaled};
+for dir in *; do
+        echo "Defragmenting directory ${directory_to_be_scaled}/$dir ($LOGDIR/defrag-store-$dir.log)"
+        $LOGDIR/defrag.sh $dir >> $LOGDIR/defrag-store-$dir.log 2>&1
+        echo Completed directory ${directory_to_be_scaled}/$dir
+done