LU-13321 tests: force even DNE file distribution

Force even file creation across DNE-striped directories in sanity
test_160f to avoid random test failures (about 15%) when no files
are created on a specific MDT.

Fixes: 0a1cf8da8069 ("LU-11025 dne: introduce new directory hash type: 'crush'")
Test-Parameters: trivial testlist=sanity env=ONLY=160f,ONLY_REPEAT=50
Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: I8bead0c20efeda90b9b89f933a022cc18e3ebbe5
Reviewed-on: https://review.whamcloud.com/38129
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: Lai Siyao <lai.siyao@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Nunez <jnunez@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>

diff --git a/lustre/tests/sanity.sh b/lustre/tests/sanity.sh
index 55a6884..3ff0118 100755 (executable)
--- a/lustre/tests/sanity.sh
+++ b/lustre/tests/sanity.sh
@@ -13992,7 +13992,9 @@ test_160f() {
        local i
 
        # generate some changelog records to accumulate on each MDT
-       test_mkdir -c $MDSCOUNT $DIR/$tdir || error "test_mkdir $tdir failed"
+       # use fnv1a because created files should be evenly distributed
+       test_mkdir -c $MDSCOUNT -H fnv_1a_64 $DIR/$tdir ||
+               error "test_mkdir $tdir failed"
        log "$(date +%s): creating first files"
        createmany -m $DIR/$tdir/$tfile $((MDSCOUNT * 2)) ||
                error "create $DIR/$tdir/$tfile failed"
@@ -14118,6 +14120,7 @@ test_160g() {
        local i
 
        # generate some changelog records to accumulate on each MDT
+       # use fnv1a because created files should be evenly distributed
        test_mkdir -c $MDSCOUNT -H fnv_1a_64 $DIR/$tdir ||
                error "mkdir $tdir failed"
        createmany -m $DIR/$tdir/$tfile $((MDSCOUNT * 2)) ||
@@ -14233,6 +14236,7 @@ test_160h() {
        local i
 
        # generate some changelog records to accumulate on each MDT
+       # use fnv1a because created files should be evenly distributed
        test_mkdir -c $MDSCOUNT -H fnv_1a_64 $DIR/$tdir ||
                error "test_mkdir $tdir failed"
        createmany -m $DIR/$tdir/$tfile $((MDSCOUNT * 2)) ||
@@ -14383,6 +14387,7 @@ test_160i() {
        changelog_register || error "first changelog_register failed"
 
        # generate some changelog records to accumulate on each MDT
+       # use fnv1a because created files should be evenly distributed
        test_mkdir -c $MDSCOUNT -H fnv_1a_64 $DIR/$tdir ||
                error "mkdir $tdir failed"
        createmany -m $DIR/$tdir/$tfile $((MDSCOUNT * 2)) ||
@@ -14449,7 +14454,9 @@ test_160j() {
        stack_trap "changelog_deregister" EXIT
 
        # generate some changelog
-       test_mkdir -c $MDSCOUNT $DIR/$tdir || error "mkdir $tdir failed"
+       # use fnv1a because created files should be evenly distributed
+       test_mkdir -c $MDSCOUNT -H fnv_1a_64 $DIR/$tdir ||
+               error "mkdir $tdir failed"
        createmany -m $DIR/$tdir/${tfile}bis $((MDSCOUNT * 2)) ||
                error "create $DIR/$tdir/${tfile}bis failed"
 
@@ -14472,7 +14479,6 @@ test_160j() {
                error "User $cl_user not found in changelog_users"
 
        printf 'clear:'$cl_user':0' >&3
-
 }
 run_test 160j "client can be umounted  while its chanangelog is being used"