LU-2291 tests: add "lfs setstripe" to racer

During the file_create.sh test, instead of just creating the file with
default striping use "lfs setstripe -c ${{RANDOM % OSTCOUNT}}" to both
exercise the "lfs setstripe" path under load, as well as make the
file IO spread across multiple OSTs.

Test-Parameters: envdefinitions=SLOW=yes testlist=racer
Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: I26020d516388af0bb95d320c0f2a364395bd0b12
Reviewed-on: http://review.whamcloud.com/4478
Reviewed-by: Jian Yu <jian.yu@intel.com>
Tested-by: Hudson
Reviewed-by: wangdi <di.wang@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>

diff --git a/lustre/tests/racer/file_create.sh b/lustre/tests/racer/file_create.sh
index 70ba0fd..828e69c 100755 (executable)
--- a/lustre/tests/racer/file_create.sh
+++ b/lustre/tests/racer/file_create.sh
@@ -4,14 +4,14 @@ DIR=$1
 MAX=$2
 MAX_MB=256
 
-create() {
-    SIZE=$((RANDOM * MAX_MB / 32))
-    echo "file_create: SIZE=$SIZE"
-    dd if=/dev/zero of=$DIR/$file bs=1k count=$SIZE
-}
+OSTCOUNT=${OSTCOUNT:-$(lfs df $DIR 2> /dev/null | grep -c OST)}
 
 while /bin/true ; do 
-    file=$((RANDOM % MAX))
-    create 2> /dev/null
+       file=$((RANDOM % MAX))
+       SIZE=$((RANDOM * MAX_MB / 32))
+       echo "file_create: FILE=$DIR/$file SIZE=$SIZE"
+       [ $OSTCOUNT -gt 0 ] &&
+               lfs setstripe -c $((RANDOM % OSTCOUNT)) $DIR/$file 2> /dev/null
+       dd if=/dev/zero of=$DIR/$file bs=1k count=$SIZE 2> /dev/null
 done