LU-3590 lfsck: repair MDT-object with dangling reference

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

diff --git a/lustre/tests/sanity-lfsck.sh b/lustre/tests/sanity-lfsck.sh
index 9b48d7c..1076bfb 100644 (file)
--- a/lustre/tests/sanity-lfsck.sh
+++ b/lustre/tests/sanity-lfsck.sh
@@ -43,7 +43,7 @@ check_and_setup_lustre
        ALWAYS_EXCEPT="$ALWAYS_EXCEPT 2c"
 
 [[ $(lustre_version_code ost1) -lt $(version_code 2.5.50) ]] &&
-       ALWAYS_EXCEPT="$ALWAYS_EXCEPT 11 12 13"
+       ALWAYS_EXCEPT="$ALWAYS_EXCEPT 11 12 13 14"
 
 build_test_filter
 
@@ -1274,6 +1274,53 @@ test_13() {
 }
 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 "#####"
+
+       echo "stopall"
+       stopall > /dev/null
+       echo "formatall"
+       formatall > /dev/null
+       echo "setupall"
+       setupall > /dev/null
+
+       mkdir -p $DIR/$tdir
+       $LFS setstripe -c 1 -i 0 $DIR/$tdir
+
+       echo "Inject failure stub to simulate dangling referenced MDT-object"
+       #define OBD_FAIL_LFSCK_DANGLING 0x1610
+       do_facet ost1 $LCTL set_param fail_loc=0x1610
+       createmany -o $DIR/$tdir/f 64
+       do_facet ost1 $LCTL set_param fail_loc=0
+
+       echo "stopall to cleanup object cache"
+       stopall > /dev/null
+       echo "setupall"
+       setupall > /dev/null
+
+       echo "'ls' should fail because of dangling referenced MDT-object"
+       ls -ail $DIR/$tdir > /dev/null 2>&1 && error "(1) ls should fail."
+
+       echo "Trigger layout LFSCK to find out dangling reference and fix them"
+       $START_LAYOUT || error "(2) Fail to start LFSCK for layout!"
+
+       wait_update_facet $SINGLEMDS "$LCTL get_param -n \
+               mdd.${MDT_DEV}.lfsck_layout |
+               awk '/^status/ { print \\\$2 }'" "completed" 6 || return 3
+
+       local repaired=$($SHOW_LAYOUT |
+                        awk '/^repaired_dangling/ { print $2 }')
+       [ $repaired -eq 32 ] ||
+               error "(4) Fail to repair dangling reference: $repaired"
+
+       echo "'ls' should success after layout LFSCK repairing"
+       ls -ail $DIR/$tdir > /dev/null || error "(5) ls should success."
+}
+run_test 14 "LFSCK can repair MDT-object with dangling reference"
+
 $LCTL set_param debug=-lfsck > /dev/null || true
 
 # restore MDS/OST size