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, 60 deletions

diff --git a/extras/defrag.sh b/extras/defrag.sh
deleted file mode 100644
index 465b0979488..00000000000
--- a/extras/defrag.sh
+++ /dev/null
@@ -1,60 +0,0 @@
-#!/bin/sh
-
-# This script gets called from 'scale-n-defrag.sh' script.
-# Don't run this stand alone.
-# 
-#
-
-set -e
-
-CP="cp"
-MV="mv"
-
-scan_dir()
-{
-    path=$1;
-    find "$path" -type f -perm +01000 -exec $0 '{}' \; 
-}
-
-rsync_filename()
-{
-    path=$1
-    dir=$(dirname "$path");
-    file=$(basename "$path");
-
-    echo "$dir/.$file.zr$$";
-}
-
-relocate_file()
-{
-    path=$1;
-    tmp_path=$(rsync_filename "$path");
-
-    pre_mtime=$(stat -c '%Y' "$path");
-    $CP -a "$path" "$tmp_path";
-    post_mtime=$(stat -c '%Y' "$path");
-
-    if [ $pre_mtime = $post_mtime ]; then
-	chmod -t "$tmp_path";
-	$MV "$tmp_path" "$path";
-	echo "file '$path' relocated" 
-    else
-	echo "file '$path' modified during defrag. skipping"
-	rm -f "$tmp_path";
-    fi
-}
-
-main()
-{
-    path="$1";
-
-    if [ -d "$path" ]; then
-	scan_dir "$path";
-    else
-	relocate_file "$@";
-    fi
-
-    usleep 500000 # 500ms
-}
-
-main "$1"