proper way to do defrag of a mountpoint

Usage: "glusterfs-defrag <MOUNTPOINT>"

there are new features added to distribute with this patch:

* bash# getfattr -n trusted.distribute.linkinfo <file>
  Gives output in the format "<hostname>:<directory>", if there is a
  linkfile present, where hostname is server, directory is backend
  directory where the actual linkfile is present.

* bash# getfattr -n trusted.glusterfs.pathinfo <path>
  Gives layout information if directory, and info about actual
  location of file in backend servers, in the form of
  'hostname:directory'. (TODO: should extend it to all xlators)

* bash# getfattr -n trusted.distribute.fix.layout <path>
  scales out the directory layout in distribute, so when new
  servers are added, layouts are fixed to include them.

* removed 'scale-n-defrag.sh' as its no more required.

* changed 'defrag.sh' to have a feature to specify target bricks,
  so defrag happens to only those nodes. moved the file to
  'glusterfs-defrag', which now gets installed to '${prefix}/bin'

* storage/posix:
  takes new option 'hostname' so it can resolve to same hostname
  given during 'gluster volume create'.
  with 'trusted.glusterfs.pathinfo' posix returns the value in
  'hostname:real_path' format.

Signed-off-by: Amar Tumballi <amar@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 1073 ('gluster defrag <VOLNAME>' fails in mainline)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1073

1 files changed, 0 insertions, 37 deletions

diff --git a/extras/scale-n-defrag.sh b/extras/scale-n-defrag.sh
deleted file mode 100644
index 1031b3931a8..00000000000
--- a/extras/scale-n-defrag.sh
+++ /dev/null
@@ -1,37 +0,0 @@
-#!/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