LU-1082 test: create test for mds-survey

[fs/lustre-release.git] / lustre / tests / mds-survey.sh

diff --git a/lustre/tests/mds-survey.sh b/lustre/tests/mds-survey.sh
new file mode 100644 (file)
index 0000000..9d98c69
--- /dev/null
+++ b/lustre/tests/mds-survey.sh
@@ -0,0 +1,97 @@
+#!/bin/bash
+#set -x
+set -e
+
+LUSTRE=${LUSTRE:-`dirname $0`/..}
+. $LUSTRE/tests/test-framework.sh
+init_test_env $@
+. ${CONFIG:=$LUSTRE/tests/cfg/$NAME.sh}
+init_logging
+
+build_test_filter
+check_and_setup_lustre
+
+file_count=${file_count:-100000}
+dir_count=${dir_count:-4}
+thrhi=${thrhi:-8}
+thrlo=${thrlo:-1}
+
+[ "$SLOW" = no ] && { file_count=50000; dir_count=2; thrhi=4; }
+
+# Skip these tests
+ALWAYS_EXCEPT="$MDS_SURVEY_EXCEPT"
+
+MDSSURVEY=${MDSSURVEY:-$(which mds-survey 2>/dev/null || true)}
+if [ -z ${MDSSURVEY} ]; then
+    skip_env "mds-survey not found" && exit
+fi
+
+# check for available inode, reduce to fit
+inode_per_thr=$((dir_count * file_count))
+require_inode=$((inode_per_thr * thrhi * 11/10))
+avail_inode=$($LFS df -i $MOUNT | grep "filesystem summary:"  | \
+    awk '{print $5}')
+
+while [ $require_inode -ge $avail_inode  ]; do
+    echo "Require $require_inode inode to run, only have $avail_inode"
+    # reduce 20%
+    file_count=$((file_count * 8 / 10))
+    inode_per_thr=$((dir_count * file_count))
+    require_inode=$((inode_per_thr * thrhi * 11 / 10))
+done
+
+if [ $require_inode -eq 0 ]; then
+    skip_env "Not enough inode to run" && exit
+fi
+
+ost_count=$($LCTL dl | grep -c osc)
+
+# first unmount all the lustre clients
+cleanup_mount $MOUNT
+cleanup_mount $MOUNT2
+
+get_target() {
+    local mds=$(facet_host $SINGLEMDS)
+    echo $(do_nodes $mds 'lctl dl' | \
+        awk "{if (\$2 == \"UP\" && \$3 == \"mdt\") {print \$4}}")
+}
+
+mds_survey_run() {
+    local layer=${1:-mdd}
+    local stripe_count=${2:-0}
+    local mds=$(facet_host $SINGLEMDS)
+
+    rm -f ${TMP}/mds_survey*
+
+    local target=$(get_target)
+    local cmd1="file_count=$file_count thrlo=$thrlo thrhi=$thrhi"
+    local cmd2="dir_count=$dir_count layer=$layer stripe_count=$stripe_count"
+    local cmd3="rslt_loc=${TMP} targets=\"$mds:$target\" $MDSSURVEY"
+    local cmd="$cmd1 $cmd2 $cmd3"
+
+    echo + $cmd
+    eval $cmd || error "mds-survey failed"
+    cat ${TMP}/mds_survey*
+    rm -f ${TMP}/mds_survey*
+}
+
+test_1() {
+    mds_survey_run "mdd" "0"
+}
+run_test 1 "Metadata survey with zero-stripe"
+
+test_2() {
+    if [ $ost_count -eq 0 ]; then
+        skip_env "Need to mount OST to test" && return
+    fi
+    mds_survey_run "mdd" "1"
+}
+run_test 2 "Metadata survey with stripe_count = 1"
+
+# remount the clients
+restore_mount $MOUNT
+
+complete $(basename $0) $SECONDS
+cleanup_echo_devs
+check_and_cleanup_lustre
+exit_status