+test_20() {
+ [ $OSTCOUNT -lt 2 ] &&
+ skip "The test needs at least 2 OSTs" && return
+
+ echo "#####"
+ echo "The target MDT-object and some of its OST-object are lost."
+ echo "The LFSCK should find out the left OST-objects and re-create"
+ echo "the MDT-object under the direcotry .lustre/lost+found/MDTxxxx/"
+ echo "with the partial OST-objects (LOV EA hole)."
+
+ echo "New client can access the file with LOV EA hole via normal"
+ echo "system tools or commands without crash the system."
+
+ echo "For old client, even though it cannot access the file with"
+ echo "LOV EA hole, it should not cause the system crash."
+ echo "#####"
+
+ check_mount_and_prep
+ $LFS mkdir -i 0 $DIR/$tdir/a1
+ if [ $OSTCOUNT -gt 2 ]; then
+ $LFS setstripe -c 3 -i 0 -s 1M $DIR/$tdir/a1
+ bcount=513
+ else
+ $LFS setstripe -c 2 -i 0 -s 1M $DIR/$tdir/a1
+ bcount=257
+ fi
+
+ # 256 blocks on the stripe0.
+ # 1 block on the stripe1 for 2 OSTs case.
+ # 256 blocks on the stripe1 for other cases.
+ # 1 block on the stripe2 if OSTs > 2
+ dd if=/dev/zero of=$DIR/$tdir/a1/f0 bs=4096 count=$bcount
+ dd if=/dev/zero of=$DIR/$tdir/a1/f1 bs=4096 count=$bcount
+ dd if=/dev/zero of=$DIR/$tdir/a1/f2 bs=4096 count=$bcount
+
+ local fid0=$($LFS path2fid $DIR/$tdir/a1/f0)
+ local fid1=$($LFS path2fid $DIR/$tdir/a1/f1)
+ local fid2=$($LFS path2fid $DIR/$tdir/a1/f2)
+
+ echo ${fid0}
+ $LFS getstripe $DIR/$tdir/a1/f0
+ echo ${fid1}
+ $LFS getstripe $DIR/$tdir/a1/f1
+ echo ${fid2}
+ $LFS getstripe $DIR/$tdir/a1/f2
+
+ if [ $OSTCOUNT -gt 2 ]; then
+ dd if=/dev/zero of=$DIR/$tdir/a1/f3 bs=4096 count=$bcount
+ fid3=$($LFS path2fid $DIR/$tdir/a1/f3)
+ echo ${fid3}
+ $LFS getstripe $DIR/$tdir/a1/f3
+ fi
+
+ cancel_lru_locks osc
+
+ echo "Inject failure..."
+ echo "To simulate f0 lost MDT-object"
+ #define OBD_FAIL_LFSCK_LOST_MDTOBJ 0x1616
+ do_facet mds1 $LCTL set_param fail_loc=0x1616
+ rm -f $DIR/$tdir/a1/f0
+
+ echo "To simulate f1 lost MDT-object and OST-object0"
+ #define OBD_FAIL_LFSCK_LOST_SPEOBJ 0x161a
+ do_facet mds1 $LCTL set_param fail_loc=0x161a
+ rm -f $DIR/$tdir/a1/f1
+
+ echo "To simulate f2 lost MDT-object and OST-object1"
+ do_facet mds1 $LCTL set_param fail_val=1
+ rm -f $DIR/$tdir/a1/f2
+
+ if [ $OSTCOUNT -gt 2 ]; then
+ echo "To simulate f3 lost MDT-object and OST-object2"
+ do_facet mds1 $LCTL set_param fail_val=2
+ rm -f $DIR/$tdir/a1/f3
+ fi
+
+ umount_client $MOUNT
+ sync
+ sleep 2
+ do_facet mds1 $LCTL set_param fail_loc=0 fail_val=0
+
+ echo "Inject failure to slow down the LFSCK on OST0"
+ #define OBD_FAIL_LFSCK_DELAY5 0x161b
+ do_facet ost1 $LCTL set_param fail_loc=0x161b
+
+ echo "Trigger layout LFSCK on all devices to find out orphan OST-object"
+ $START_LAYOUT -r -o || error "(1) Fail to start LFSCK for layout!"
+
+ sleep 3
+ do_facet ost1 $LCTL set_param fail_loc=0
+
+ for k in $(seq $MDSCOUNT); do
+ # The LFSCK status query internal is 30 seconds. For the case
+ # of some LFSCK_NOTIFY RPCs failure/lost, we will wait enough
+ # time to guarantee the status sync up.
+ wait_update_facet mds${k} "$LCTL get_param -n \
+ mdd.$(facet_svc mds${k}).lfsck_layout |
+ awk '/^status/ { print \\\$2 }'" "completed" 32 ||
+ error "(2) MDS${k} is not the expected 'completed'"
+ done
+
+ for k in $(seq $OSTCOUNT); do
+ local cur_status=$(do_facet ost${k} $LCTL get_param -n \
+ obdfilter.$(facet_svc ost${k}).lfsck_layout |
+ awk '/^status/ { print $2 }')
+ [ "$cur_status" == "completed" ] ||
+ error "(3) OST${k} Expect 'completed', but got '$cur_status'"
+ done
+
+ local repaired=$(do_facet mds1 $LCTL get_param -n \
+ mdd.$(facet_svc mds1).lfsck_layout |
+ awk '/^repaired_orphan/ { print $2 }')
+ if [ $OSTCOUNT -gt 2 ]; then
+ [ $repaired -eq 9 ] ||
+ error "(4.1) Expect 9 fixed on mds1, but got: $repaired"
+ else
+ [ $repaired -eq 4 ] ||
+ error "(4.2) Expect 4 fixed on mds1, but got: $repaired"
+ fi
+
+ mount_client $MOUNT || error "(5.0) Fail to start client!"
+
+ LOV_PATTERN_F_HOLE=0x40000000
+
+ #
+ # R-${fid0} is the old f0
+ #
+ local name="$MOUNT/.lustre/lost+found/MDT0000/R-${fid0}"
+ echo "Check $name, which is the old f0"
+
+ $LFS getstripe -v $name || error "(5.1) cannot getstripe on $name"
+
+ local pattern=0x$($LFS getstripe -L $name)
+ [[ $((pattern & LOV_PATTERN_F_HOLE)) -eq 0 ]] ||
+ error "(5.2) NOT expect pattern flag hole, but got $pattern"
+
+ local stripes=$($LFS getstripe -c $name)
+ if [ $OSTCOUNT -gt 2 ]; then
+ [ $stripes -eq 3 ] ||
+ error "(5.3.1) expect the stripe count is 3, but got $stripes"
+ else
+ [ $stripes -eq 2 ] ||
+ error "(5.3.2) expect the stripe count is 2, but got $stripes"
+ fi
+
+ local size=$(stat $name | awk '/Size:/ { print $2 }')
+ [ $size -eq $((4096 * $bcount)) ] ||
+ error "(5.4) expect the size $((4096 * $bcount)), but got $size"
+
+ cat $name > /dev/null || error "(5.5) cannot read $name"
+
+ echo "dummy" >> $name || error "(5.6) cannot write $name"
+
+ chown $RUNAS_ID:$RUNAS_GID $name || error "(5.7) cannot chown on $name"
+
+ touch $name || error "(5.8) cannot touch $name"
+
+ rm -f $name || error "(5.9) cannot unlink $name"
+
+ #
+ # R-${fid1} contains the old f1's stripe1 (and stripe2 if OSTs > 2)
+ #
+ name="$MOUNT/.lustre/lost+found/MDT0000/R-${fid1}"
+ if [ $OSTCOUNT -gt 2 ]; then
+ echo "Check $name, it contains the old f1's stripe1 and stripe2"
+ else
+ echo "Check $name, it contains the old f1's stripe1"
+ fi
+
+ $LFS getstripe -v $name || error "(6.1) cannot getstripe on $name"
+
+ pattern=0x$($LFS getstripe -L $name)
+ [[ $((pattern & LOV_PATTERN_F_HOLE)) -ne 0 ]] ||
+ error "(6.2) expect pattern flag hole, but got $pattern"
+
+ stripes=$($LFS getstripe -c $name)
+ if [ $OSTCOUNT -gt 2 ]; then
+ [ $stripes -eq 3 ] ||
+ error "(6.3.1) expect the stripe count is 3, but got $stripes"
+ else
+ [ $stripes -eq 2 ] ||
+ error "(6.3.2) expect the stripe count is 2, but got $stripes"
+ fi
+
+ size=$(stat $name | awk '/Size:/ { print $2 }')
+ [ $size -eq $((4096 * $bcount)) ] ||
+ error "(6.4) expect the size $((4096 * $bcount)), but got $size"
+
+ cat $name > /dev/null && error "(6.5) normal read $name should fail"
+
+ local failures=$(dd if=$name of=$DIR/$tdir/dump conv=sync,noerror \
+ bs=4096 2>&1 | grep "Input/output error" | wc -l)
+
+ # stripe0 is dummy
+ [ $failures -eq 256 ] ||
+ error "(6.6) expect 256 IO failures, but get $failures"
+
+ size=$(stat $DIR/$tdir/dump | awk '/Size:/ { print $2 }')
+ [ $size -eq $((4096 * $bcount)) ] ||
+ error "(6.7) expect the size $((4096 * $bcount)), but got $size"
+
+ dd if=/dev/zero of=$name conv=sync,notrunc bs=4096 count=1 &&
+ error "(6.8) write to the LOV EA hole should fail"
+
+ dd if=/dev/zero of=$name conv=sync,notrunc bs=4096 count=1 seek=300 ||
+ error "(6.9) write to normal stripe should NOT fail"
+
+ echo "foo" >> $name && error "(6.10) append write $name should fail"
+
+ chown $RUNAS_ID:$RUNAS_GID $name || error "(6.11) cannot chown on $name"
+
+ touch $name || error "(6.12) cannot touch $name"
+
+ rm -f $name || error "(6.13) cannot unlink $name"
+
+ #
+ # R-${fid2} it contains the old f2's stripe0 (and stripe2 if OSTs > 2)
+ #
+ name="$MOUNT/.lustre/lost+found/MDT0000/R-${fid2}"
+ if [ $OSTCOUNT -gt 2 ]; then
+ echo "Check $name, it contains the old f2's stripe0 and stripe2"
+ else
+ echo "Check $name, it contains the old f2's stripe0"
+ fi
+
+ $LFS getstripe -v $name || error "(7.1) cannot getstripe on $name"
+
+ pattern=0x$($LFS getstripe -L $name)
+ stripes=$($LFS getstripe -c $name)
+ size=$(stat $name | awk '/Size:/ { print $2 }')
+ if [ $OSTCOUNT -gt 2 ]; then
+ [[ $((pattern & LOV_PATTERN_F_HOLE)) -ne 0 ]] ||
+ error "(7.2.1) expect pattern flag hole, but got $pattern"
+
+ [ $stripes -eq 3 ] ||
+ error "(7.3.1) expect the stripe count is 3, but got $stripes"
+
+ [ $size -eq $((4096 * $bcount)) ] ||
+ error "(7.4.1) expect size $((4096 * $bcount)), but got $size"
+
+ cat $name > /dev/null &&
+ error "(7.5.1) normal read $name should fail"
+
+ failures=$(dd if=$name of=$DIR/$tdir/dump conv=sync,noerror \
+ bs=4096 2>&1 | grep "Input/output error" | wc -l)
+ # stripe1 is dummy
+ [ $failures -eq 256 ] ||
+ error "(7.6) expect 256 IO failures, but get $failures"
+
+ size=$(stat $DIR/$tdir/dump | awk '/Size:/ { print $2 }')
+ [ $size -eq $((4096 * $bcount)) ] ||
+ error "(7.7) expect the size $((4096 * $bcount)), but got $size"
+
+ dd if=/dev/zero of=$name conv=sync,notrunc bs=4096 count=1 \
+ seek=300 && error "(7.8.0) write to the LOV EA hole should fail"
+
+ dd if=/dev/zero of=$name conv=sync,notrunc bs=4096 count=1 ||
+ error "(7.8.1) write to normal stripe should NOT fail"
+
+ echo "foo" >> $name &&
+ error "(7.8.3) append write $name should fail"
+
+ chown $RUNAS_ID:$RUNAS_GID $name ||
+ error "(7.9.1) cannot chown on $name"
+
+ touch $name || error "(7.10.1) cannot touch $name"
+ else
+ [[ $((pattern & LOV_PATTERN_F_HOLE)) -eq 0 ]] ||
+ error "(7.2.2) NOT expect pattern flag hole, but got $pattern"
+
+ [ $stripes -eq 1 ] ||
+ error "(7.3.2) expect the stripe count is 1, but got $stripes"
+
+ # stripe1 is dummy
+ [ $size -eq $((4096 * (256 + 0))) ] ||
+ error "(7.4.2) expect the size $((4096 * 256)), but got $size"
+
+ cat $name > /dev/null || error "(7.5.2) cannot read $name"
+
+ echo "dummy" >> $name || error "(7.8.2) cannot write $name"
+
+ chown $RUNAS_ID:$RUNAS_GID $name ||
+ error "(7.9.2) cannot chown on $name"
+
+ touch $name || error "(7.10.2) cannot touch $name"
+ fi
+
+ rm -f $name || error "(7.11) cannot unlink $name"
+
+ [ $OSTCOUNT -le 2 ] && return
+
+ #
+ # R-${fid3} should contains the old f3's stripe0 and stripe1
+ #
+ name="$MOUNT/.lustre/lost+found/MDT0000/R-${fid3}"
+ echo "Check $name, which contains the old f3's stripe0 and stripe1"
+
+ $LFS getstripe -v $name || error "(8.1) cannot getstripe on $name"
+
+ pattern=0x$($LFS getstripe -L $name)
+ [[ $((pattern & LOV_PATTERN_F_HOLE)) -eq 0 ]] ||
+ error "(8.2) NOT expect pattern flag hole, but got $pattern"
+
+ stripes=$($LFS getstripe -c $name)
+ # LFSCK does not know the old f3 had 3 stripes.
+ # It only tries to find as much as possible.
+ # The stripe count depends on the last stripe's offset.
+ [ $stripes -eq 2 ] ||
+ error "(8.3) expect the stripe count is 2, but got $stripes"
+
+ size=$(stat $name | awk '/Size:/ { print $2 }')
+ # stripe2 is lost
+ [ $size -eq $((4096 * (256 + 256 + 0))) ] ||
+ error "(8.4) expect the size $((4096 * 512)), but got $size"
+
+ cat $name > /dev/null || error "(8.5) cannot read $name"
+
+ echo "dummy" >> $name || error "(8.6) cannot write $name"
+
+ chown $RUNAS_ID:$RUNAS_GID $name ||
+ error "(8.7) cannot chown on $name"
+
+ touch $name || error "(8.8) cannot touch $name"
+
+ rm -f $name || error "(8.9) cannot unlink $name"
+}
+run_test 20 "Handle the orphan with dummy LOV EA slot properly"
+
git://git.whamcloud.com / fs / lustre-release.git / commitdiff