-#!/bin/bash
-# test e2fsck and lfsck to detect and fix filesystem corruption
-#
-#set -vx
-set -e
-
-[ "$1" = "-v" ] && shift && VERBOSE=echo || VERBOSE=:
-
-LUSTRE=${LUSTRE:-$(cd $(dirname $0)/..; echo $PWD)}
-. $LUSTRE/tests/test-framework.sh
-init_test_env $@
-. ${CONFIG:=$LUSTRE/tests/cfg/$NAME.sh}
-
-NUMFILES=${NUMFILES:-10}
-NUMDIRS=${NUMDIRS:-4}
-OSTIDX=${OSTIDX:-0} # the OST index in LOV
-OBJGRP=${OBJGRP:-0} # the OST object group
-
-[ ! -d "$SHARED_DIRECTORY" ] &&
- skip_env "SHARED_DIRECTORY should be accessible on all nodes" &&
- exit 0
-[[ $(facet_fstype $SINGLEMDS) != ldiskfs ]] &&
- skip "Only applicable to ldiskfs-based MDTs" && exit 0
-[[ $(facet_fstype OST) != ldiskfs ]] &&
- skip "Only applicable to ldiskfs-based OST" && exit 0
-
-which getfattr &>/dev/null || { skip_env "could not find getfattr" && exit 0; }
-which setfattr &>/dev/null || { skip_env "could not find setfattr" && exit 0; }
-
-MOUNT_2=""
-check_and_setup_lustre
-
-assert_DIR
-
-SAMPLE_FILE=$TMP/$TESTSUITE.junk
-dd if=/dev/urandom of=$SAMPLE_FILE bs=1M count=1
-
-# Create some dirs and files on the filesystem.
-create_files_sub() {
- local test_dir=$1
- local num_dirs=$2
- local file_name=$3
- local first_num=$4
- local last_num=$5
- local d e f
-
- echo "creating files in $test_dir/d[$first_num..$last_num]:"
- for d in $(seq -f $test_dir/d%g $first_num $last_num); do
- mkdir -p $d || error "mkdir $d failed"
- $VERBOSE "created $d $(lfs path2fid $d)"
- for e in $(seq -f $d/d%g $num_dirs); do
- mkdir -p $e || error "mkdir $$e failed"
- $VERBOSE "created $e $(lfs path2fid $e)"
- for f in $(seq -f $e/test%g $num_dirs); do
- cp $file_name $f ||
- error "cp $file_name $f failed"
- $VERBOSE "created $f $(lfs path2fid $f)"
- done
- done
- done
-}
-
-create_files() {
- local test_dir=$1
- local num_dirs=$2
- local num_files=$3
- local f
-
- # create some files on the filesystem
- local first_num=1
- local last_num=$num_dirs
- create_files_sub $test_dir $num_dirs /etc/fstab $first_num $last_num
-
- # create files to be modified
- echo "creating files $test_dir/testfile.[0..$((num_files * 3))]:"
- for f in $(seq -f $test_dir/testfile.%g $((num_files * 3))); do
- cp $SAMPLE_FILE $f || error "cp $SAMPLE_FILE $f failed"
- $VERBOSE "created $f $(lfs path2fid $f)"
- done
-
- # create some more files
- first_num=$((num_dirs * 2 + 1))
- last_num=$((num_dirs * 2 + 3))
- create_files_sub $test_dir $num_dirs /etc/hosts $first_num $last_num
-
- # these should NOT be taken as duplicates
- echo "linking files in $test_dir/d[$first_num..$last_num]:"
- for f in $(seq -f $test_dir/d$last_num/linkfile.%g $num_files); do
- cp /etc/hosts $f || error "cp /etc/hosts $f failed"
- ln $f $f.link || error "ln $f $f.link failed"
- $VERBOSE "linked $f to $f.link $(lfs path2fid $f)"
- done
-}
-
-# Get the objids for files on the OST (given the OST index and object group).
-get_objects() {
- local obdidx=$1
- shift
- local seq=$1
- shift
- local ost_files="$@"
- local ost_objids
- local objids
-
- for F in $ostfiles; do
- objid=$($GETSTRIPE $F |
- awk "{ if (\$1 == $obdidx && \$4 == $seq) print \$2 }")
- $VERBOSE $GETSTRIPE -v $F | grep -v "lmm_seq|lmm_object_id" 1>&2
- ost_objids="$ost_objids $objid"
- done
-
- echo $ost_objids
-}
-
-# Get the OST target device (given the OST facet name and OST index).
-get_ost_dev() {
- local node=$1
- local obdidx=$2
- local ost_name
- local ost_dev
-
- ost_name=$(ostname_from_index $obdidx)
- ost_dev=$(get_osd_param $node $ost_name mntdev)
- if [ $? -ne 0 ]; then
- printf "unable to find OST%04x on $facet\n" $obdidx
- return 1
- fi
-
- if [[ $ost_dev = *loop* ]]; then
- ost_dev=$(do_node $node "losetup $ost_dev" |
- sed -e "s/.*(//" -e "s/).*//")
- fi
-
- echo $ost_dev
-}
-
-# Get the file names to be duplicated or removed on the MDS.
-get_files() {
- local flavor=$1
- local test_dir=$2
- local num_files=$3
- local first last
- local test_file
-
- case $flavor in
- dup)
- first=$((num_files + 1))
- last=$((num_files * 2))
- ;;
- remove)
- first=$((num_files * 2 + 1))
- last=$((num_files * 3))
- ;;
- *) echo "get_files(): invalid flavor" && return 1 ;;
- esac
-
- local files=""
- local f
- for f in $(seq -f testfile.%g $first $last); do
- test_file=$test_dir/$f
- $GETSTRIPE -v $test_file |
- egrep -v "lmm_stripe|lmm_layout|lmm_magic" 1>&2
- files="$files $test_file"
- done
- files=$(echo $files | sed "s#$DIR/##g")
- echo $files
-}
-
-# Remove objects associated with files.
-remove_objects() {
- do_rpc_nodes $(facet_host $1) remove_ost_objects $@
-}
-
-# Remove files from MDS.
-remove_files() {
- do_rpc_nodes $(facet_host $1) remove_mdt_files $@
-}
-
-# Create EAs on files so objects are referenced from different files.
-duplicate_files() {
- do_rpc_nodes $(facet_host $1) duplicate_mdt_files $@
-}
-
-#********************************* Main Flow **********************************#
-
-init_logging
-
-# get the server target devices
-get_svr_devs
-
-TESTDIR=$DIR/d0.$TESTSUITE
-if is_empty_fs $MOUNT; then
- # create test directory
- mkdir -p $TESTDIR || error "mkdir $TESTDIR failed"
-
- # create some dirs and files on the filesystem
- create_files $TESTDIR $NUMDIRS $NUMFILES
-
- # get objids for files in group $OBJGRP on the OST with index $OSTIDX
- echo "objects to be removed, leaving dangling references:"
- OST_REMOVE=$(get_objects $OSTIDX $OBJGRP \
- $(seq -f $TESTDIR/testfile.%g $NUMFILES))
-
- # get the node name and target device for the OST with index $OSTIDX
- OSTNODE=$(facet_active_host ost$((OSTIDX + 1)))
- OSTDEV=$(get_ost_dev $OSTNODE $OSTIDX) ||
- error "get_ost_dev $OSTNODE $OSTIDX failed"
-
- # get the file names to be duplicated on the MDS
- echo "files to be duplicated, leaving double-referenced objects:"
- MDS_DUPE=$(get_files dup $TESTDIR $NUMFILES) || error "$MDS_DUPE"
- # get the file names to be removed from the MDS
- echo "files to be removed, leaving orphan objects:"
- MDS_REMOVE=$(get_files remove $TESTDIR $NUMFILES) || error "$MDS_REMOVE"
-
- stopall -f || error "cleanupall failed"
-
- # remove objects associated with files in group $OBJGRP
- # on the OST with index $OSTIDX
- remove_objects ost$((OSTIDX + 1)) $OSTDEV $OBJGRP $OST_REMOVE ||
- error "removing objects failed"
-
- # remove files from MDS
- remove_files $SINGLEMDS $MDTDEV $MDS_REMOVE ||
- error "removing files failed"
-
- # create EAs on files so objects are referenced from different files
- duplicate_files $SINGLEMDS $MDTDEV $MDS_DUPE ||
- error "duplicating files failed"
- FSCK_MAX_ERR=1 # file system errors corrected
-else # is_empty_fs $MOUNT
- FSCK_MAX_ERR=4 # file system errors left uncorrected
- sync; sync; sleep 3 # make sure all data flush back
-fi
-
-# Test 1a - check and repair the filesystem
-# lfsck will return 1 if the filesystem had errors fixed
-# run e2fsck to generate databases used for lfsck
-generate_db
-
-# remount filesystem
-ORIG_REFORMAT=$REFORMAT
-REFORMAT=""
-check_and_setup_lustre
-REFORMAT=$ORIG_REFORMAT
-
-# run lfsck
-rc=0
-run_lfsck || rc=$?
-if [ $rc -eq 0 ]; then
- echo "clean after the first check"
-else
- # remove the files in lost+found created by the first lfsck
- # run, they could confuse the second run of lfsck.
- rm -fr $DIR/lost+found/*
- sync; sync; sleep 3
-
- # run e2fsck again to generate databases used for lfsck
- generate_db
-
- # run lfsck again
- rc=0
- run_lfsck || rc=$?
- if [ $rc -eq 0 ]; then
- echo "clean after the second check"
- else
- # FIXME: If the first run of lfsck fixed some errors,
- # the second run of lfsck will always return 1 (some
- # errors fixed) but not 0 (fs clean), the reason of
- # this unexpected behaviour is unkown yet.
- #
- # Actually, this issue exists from day one but was
- # not detected before, because run_lfsck() always return
- # 0 before. Let's supress this error and make the lfsck
- # test pass for now, once we figure out the problem,
- # following 'echo' should be replaced with 'error'.
- # See LU-3180.
- echo "lfsck test 2 - finished with rc=$rc"
- fi
-fi
-
-complete $SECONDS
-# The test directory contains some files referencing to some object
-# which could cause error when removing the directory.
-RMCNT=0
-while [ -d $TESTDIR ]; do
- RMCNT=$((RMCNT + 1))
- rm -fr $TESTDIR || echo "$RMCNT round: rm $TESTDIR failed"
- [ $RMCNT -ge 10 ] && error "cleanup $TESTDIR failed $RMCNT times"
- remount_client $MOUNT
-done
-check_and_cleanup_lustre
-exit_status