LU-5516 lfsck: repair the lost name entry

[fs/lustre-release.git] / lustre / tests / sanity-lfsck.sh

diff --git a/lustre/tests/sanity-lfsck.sh b/lustre/tests/sanity-lfsck.sh
index 3d6fbbc..f77ad1b 100644 (file)
--- a/lustre/tests/sanity-lfsck.sh
+++ b/lustre/tests/sanity-lfsck.sh
@@ -46,7 +46,7 @@ setupall
        ALWAYS_EXCEPT="$ALWAYS_EXCEPT 11 12 13 14 15 16 17 18 19 20 21"
 
 [[ $(lustre_version_code $SINGLEMDS) -lt $(version_code 2.6.50) ]] &&
-       ALWAYS_EXCEPT="$ALWAYS_EXCEPT 2d 2e 3 22 23 24 25"
+       ALWAYS_EXCEPT="$ALWAYS_EXCEPT 2d 2e 3 22 23 24 25 26"
 
 build_test_filter
 
@@ -231,7 +231,7 @@ test_1b()
                         awk '/^updated_phase1/ { print $2 }')
 
        [ $repaired -eq 1 ] ||
-               error "(5) Fail to repair missed FID-in-LMA: $repaired"
+               error "(5) Fail to repair the missing FID-in-LMA: $repaired"
 
        do_facet $SINGLEMDS $LCTL set_param fail_loc=0
        mount_client $MOUNT || error "(6) Fail to start client!"
@@ -242,7 +242,7 @@ test_1b()
 
        do_facet $SINGLEMDS $LCTL set_param fail_loc=0
 }
-run_test 1b "LFSCK can find out and repair missed FID-in-LMA"
+run_test 1b "LFSCK can find out and repair the missing FID-in-LMA"
 
 test_2a() {
        lfsck_prep 1 1
@@ -386,7 +386,7 @@ test_2d()
        [ "$dummyname" == "$DIR/$tdir/dummy" ] ||
                error "(8) Fail to repair linkEA: $dummyfid $dummyname"
 }
-run_test 2d "LFSCK can recover the missed linkEA entry"
+run_test 2d "LFSCK can recover the missing linkEA entry"
 
 test_2e()
 {
@@ -1398,7 +1398,7 @@ run_test 13 "LFSCK can repair crashed lmm_oi"
 test_14() {
        echo "#####"
        echo "The OST-object referenced by the MDT-object should be there;"
-       echo "otherwise, the LFSCK should re-create the missed OST-object."
+       echo "otherwise, the LFSCK should re-create the missing OST-object."
        echo "#####"
 
        check_mount_and_prep
@@ -1644,7 +1644,7 @@ run_test 17 "LFSCK can repair multiple references"
 test_18a() {
        echo "#####"
        echo "The target MDT-object is there, but related stripe information"
-       echo "is lost or partly lost. The LFSCK should regenerate the missed"
+       echo "is lost or partly lost. The LFSCK should regenerate the missing"
        echo "layout EA entries."
        echo "#####"
 
@@ -3145,6 +3145,110 @@ test_25() {
 }
 run_test 25 "LFSCK can repair bad file type in the name entry"
 
+test_26a() {
+       echo "#####"
+       echo "The local name entry back referenced by the MDT-object is lost."
+       echo "The namespace LFSCK will add the missing local name entry back"
+       echo "to the normal namespace."
+       echo "#####"
+
+       check_mount_and_prep
+
+       $LFS mkdir -i 0 $DIR/$tdir/d0 || error "(1) Fail to mkdir d0"
+       touch $DIR/$tdir/d0/foo || error "(2) Fail to create foo"
+       local foofid=$($LFS path2fid $DIR/$tdir/d0/foo)
+
+       ln $DIR/$tdir/d0/foo $DIR/$tdir/d0/dummy ||
+               error "(3) Fail to hard link to $DIR/$tdir/d0/foo"
+
+       echo "Inject failure stub on MDT0 to simulate the case that"
+       echo "foo's name entry will be removed, but the foo's object"
+       echo "and its linkEA are kept in the system."
+
+       #define OBD_FAIL_LFSCK_NO_NAMEENTRY     0x1624
+       do_facet $SINGLEMDS $LCTL set_param fail_loc=0x1624
+       rm -f $DIR/$tdir/d0/foo || error "(4) Fail to unlink $DIR/$tdir/d0/foo"
+       do_facet $SINGLEMDS $LCTL set_param fail_loc=0
+
+       ls -ail $DIR/$tdir/d0/foo > /dev/null 2>&1 && "(5) 'ls' should fail"
+
+       echo "Trigger namespace LFSCK to repair the missing remote name entry"
+       $START_NAMESPACE -r -A ||
+               error "(6) Fail to start LFSCK for namespace"
+
+       wait_update_facet $SINGLEMDS "$LCTL get_param -n \
+               mdd.${MDT_DEV}.lfsck_namespace |
+               awk '/^status/ { print \\\$2 }'" "completed" 32 || {
+               $SHOW_NAMESPACE
+               error "(7) unexpected status"
+       }
+
+       local repaired=$($SHOW_NAMESPACE |
+                        awk '/^lost_dirent_repaired/ { print $2 }')
+       [ $repaired -eq 1 ] ||
+               error "(8) Fail to repair lost dirent: $repaired"
+
+       ls -ail $DIR/$tdir/d0/foo ||
+               error "(9) Fail to 'ls' $DIR/$tdir/d0/foo"
+
+       local foofid2=$($LFS path2fid $DIR/$tdir/d0/foo)
+       [ "$foofid" == "$foofid2" ] ||
+               error "(10) foo's FID changed: $foofid, $foofid2"
+}
+run_test 26a "LFSCK can add the missing local name entry back to the namespace"
+
+test_26b() {
+       [ $MDSCOUNT -lt 2 ] &&
+               skip "We need at least 2 MDSes for this test" && return
+
+       echo "#####"
+       echo "The remote name entry back referenced by the MDT-object is lost."
+       echo "The namespace LFSCK will add the missing remote name entry back"
+       echo "to the normal namespace."
+       echo "#####"
+
+       check_mount_and_prep
+
+       $LFS mkdir -i 1 $DIR/$tdir/d0 || error "(1) Fail to mkdir d0"
+       $LFS mkdir -i 0 $DIR/$tdir/d0/foo || error "(2) Fail to mkdir foo"
+       local foofid=$($LFS path2fid $DIR/$tdir/d0/foo)
+
+       echo "Inject failure stub on MDT0 to simulate the case that"
+       echo "foo's name entry will be removed, but the foo's object"
+       echo "and its linkEA are kept in the system."
+
+       #define OBD_FAIL_LFSCK_NO_NAMEENTRY     0x1624
+       do_facet $SINGLEMDS $LCTL set_param fail_loc=0x1624
+       rmdir $DIR/$tdir/d0/foo || error "(3) Fail to rmdir $DIR/$tdir/d0/foo"
+       do_facet $SINGLEMDS $LCTL set_param fail_loc=0
+
+       ls -ail $DIR/$tdir/d0/foo > /dev/null 2>&1 && "(4) 'ls' should fail"
+
+       echo "Trigger namespace LFSCK to repair the missing remote name entry"
+       $START_NAMESPACE -r -A ||
+               error "(5) Fail to start LFSCK for namespace"
+
+       wait_update_facet $SINGLEMDS "$LCTL get_param -n \
+               mdd.${MDT_DEV}.lfsck_namespace |
+               awk '/^status/ { print \\\$2 }'" "completed" 32 || {
+               $SHOW_NAMESPACE
+               error "(6) unexpected status"
+       }
+
+       local repaired=$($SHOW_NAMESPACE |
+                        awk '/^lost_dirent_repaired/ { print $2 }')
+       [ $repaired -eq 1 ] ||
+               error "(7) Fail to repair lost dirent: $repaired"
+
+       ls -ail $DIR/$tdir/d0/foo ||
+               error "(8) Fail to 'ls' $DIR/$tdir/d0/foo"
+
+       local foofid2=$($LFS path2fid $DIR/$tdir/d0/foo)
+       [ "$foofid" == "$foofid2" ] ||
+               error "(9) foo's FID changed: $foofid, $foofid2"
+}
+run_test 26b "LFSCK can add the missing remote name entry back to the namespace"
+
 $LCTL set_param debug=-lfsck > /dev/null || true
 
 # restore MDS/OST size