LU-9803 tests: cast st_blksize for printf

[fs/lustre-release.git] / lustre / scripts / lfs_migrate

diff --git a/lustre/scripts/lfs_migrate b/lustre/scripts/lfs_migrate
index c285510..37e8ee0 100755 (executable)
--- a/lustre/scripts/lfs_migrate
+++ b/lustre/scripts/lfs_migrate
@@ -15,8 +15,10 @@ set -e
 # to be 100% safe the administrator needs to ensure this is safe.
 
 RSYNC=${RSYNC:-rsync}
+LFS_MIGRATE_RSYNC_MODE=${LFS_MIGRATE_RSYNC_MODE:-false}
 ECHO=echo
 LFS=${LFS:-lfs}
+LFS_SIZE_OPT="-s"
 
 usage() {
     cat -- <<USAGE 1>&2
@@ -25,7 +27,7 @@ usage: lfs_migrate [-c <stripe_count>] [-h] [-l] [-n] [-q] [-R] [-s] [-y] [-0]
     -c <stripe_count>
        restripe file using the specified stripe count
     -h show this usage message
-    -l migrate files with hard links (skip by default)
+    -l migrate files with hard links (skip by default for rsync)
     -n only print the names of files to be migrated
     -q run quietly (don't print filenames or status)
     -R restripe file using default directory striping
@@ -75,10 +77,10 @@ if [ -z "$OPT_YES" ]; then
        echo "lfs_migrate is currently NOT SAFE for moving in-use files." 1>&2
        echo "Use it only when you are sure migrated files are unused." 1>&2
        echo "" 1>&2
-       echo "If emptying OST(s) that are not disabled on the MDS, new" 1>&2
-       echo "files may use them.  To prevent MDS allocating any files on" 1>&2
-       echo "OSTNNNN run 'lctl --device %{fsname}-OSTNNNN-osc deactivate'" 1>&2
-       echo "on the MDS." 1>&2
+       echo "If emptying an OST that is active on the MDS, new files may" 1>&2
+       echo "use it.  To stop allocating any new objects on OSTNNNN run:" 1>&2
+       echo "  lctl set_param osp.<fsname>-OSTNNNN*.max_create_count=0'" 1>&2
+       echo "on each MDS using the OST(s) being emptied." 1>&2
        echo -n "Continue? (y/n) "
        read CHECK
        [ "$CHECK" != "y" -a "$CHECK" != "yes" ] && exit 1
@@ -96,6 +98,9 @@ strings $(which $RSYNC) 2>&1 | grep -q lustre && LFS=:
 # access the temporary file.
 umask 0077
 
+# This is needed for 1.8 Interoperability and can be removed in the future
+$LFS getstripe --help 2>&1 | grep -q stripe-size && LFS_SIZE_OPT="-S"
+
 lfs_migrate() {
        while IFS='' read -d '' OLDNAME; do
                $ECHO -n "$OLDNAME: "
@@ -110,11 +115,6 @@ lfs_migrate() {
                        continue
                fi
 
-               if [ -z "$OPT_NLINK" -a ${TYPE_LINK[0]} -gt 1 ]; then
-                       echo -e "multiple hard links, skipped"
-                       continue
-               fi
-
                # working out write perms is hard, let the shell do it
                if [ ! -w "$OLDNAME" ]; then
                        echo -e "no write permission, skipped"
@@ -126,7 +126,6 @@ lfs_migrate() {
                        continue
                fi
 
-
                if [ "$OPT_RESTRIPE" ]; then
                        UNLINK=""
                else
@@ -138,17 +137,37 @@ lfs_migrate() {
                        [ "$OPT_STRIPE_COUNT" ] && COUNT=$OPT_STRIPE_COUNT ||
                                COUNT=$($LFS getstripe -c "$OLDNAME" \
                                        2> /dev/null)
-                       SIZE=$($LFS getstripe -S "$OLDNAME" 2> /dev/null)
+                       SIZE=$($LFS getstripe $LFS_SIZE_OPT "$OLDNAME" \
+                              2> /dev/null)
 
                        [ -z "$COUNT" -o -z "$SIZE" ] && UNLINK=""
+                       SIZE=${LFS_SIZE_OPT}${SIZE}
                fi
+
+               # first try to migrate inside lustre
+               # if failed go back to old rsync mode
+               if [[ $LFS_MIGRATE_RSYNC_MODE == false ]]; then
+                       if $LFS migrate -c${COUNT} ${SIZE} "$OLDNAME"; then
+                               $ECHO "done"
+                               continue
+                       else
+                               echo "falling back to rsync-based migration"
+                               LFS_MIGRATE_RSYNC_MODE=true
+                       fi
+               fi
+
+               if [ -z "$OPT_NLINK" -a ${TYPE_LINK[0]} -gt 1 ]; then
+                       echo -e "multiple hard links, skipped"
+                       continue
+               fi
+
                NEWNAME=$(mktemp $UNLINK "$OLDNAME.tmp.XXXXXX")
                if [ $? -ne 0 -o -z "$NEWNAME" ]; then
                        echo -e "\r$OLDNAME: can't make temp file, skipped" 1>&2
                        continue
                fi
 
-               [ "$UNLINK" ] && $LFS setstripe -c${COUNT} -S${SIZE} "$NEWNAME"
+               [ "$UNLINK" ] && $LFS setstripe -c${COUNT} ${SIZE} "$NEWNAME"
 
                # we use --inplace, since we created our own temp file already
                if ! $RSYNC -a --inplace $RSYNC_OPTS "$OLDNAME" "$NEWNAME";then
@@ -157,7 +176,7 @@ lfs_migrate() {
                        exit 4
                fi
 
-               if [ "$OPT_CHECK" ] && ! cmp "$OLDNAME" "$NEWNAME"; then
+               if [ "$OPT_CHECK" ] && ! cmp -s "$OLDNAME" "$NEWNAME"; then
                        echo -e "\r$NEWNAME: compare failed, exiting" 1>&2
                        exit 8
                fi