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diff --git a/src/ceph/qa/standalone/osd/osd-markdown.sh b/src/ceph/qa/standalone/osd/osd-markdown.sh
new file mode 100755
index 0000000..b3c800c
--- /dev/null
+++ b/src/ceph/qa/standalone/osd/osd-markdown.sh
@@ -0,0 +1,122 @@
+#!/bin/bash
+#
+# Copyright (C) 2015 Intel <contact@intel.com.com>
+# Copyright (C) 2014, 2015 Red Hat <contact@redhat.com>
+#
+# Author: Xiaoxi Chen <xiaoxi.chen@intel.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Library Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Library Public License for more details.
+#
+
+source $CEPH_ROOT/qa/standalone/ceph-helpers.sh
+
+function run() {
+    local dir=$1
+    shift
+
+    export CEPH_MON="127.0.0.1:7108" # git grep '\<7108\>' : there must be only one
+    export CEPH_ARGS
+    CEPH_ARGS+="--fsid=$(uuidgen) --auth-supported=none "
+    CEPH_ARGS+="--mon-host=$CEPH_MON "
+
+    local funcs=${@:-$(set | sed -n -e 's/^\(TEST_[0-9a-z_]*\) .*/\1/p')}
+    for func in $funcs ; do
+        setup $dir || return 1
+        $func $dir || return 1
+        teardown $dir || return 1
+    done
+}
+
+function markdown_N_impl() {
+  markdown_times=$1
+  total_time=$2
+  sleeptime=$3
+  for i in `seq 1 $markdown_times`
+  do
+    # check the OSD is UP
+    ceph osd tree
+    ceph osd tree | grep osd.0 |grep up || return 1
+    # mark the OSD down.
+    ceph osd down 0
+    sleep $sleeptime
+  done
+}
+
+
+function TEST_markdown_exceed_maxdown_count() {
+    local dir=$1
+
+    run_mon $dir a || return 1
+    run_mgr $dir x || return 1
+    run_osd $dir 0 || return 1
+    run_osd $dir 1 || return 1
+    run_osd $dir 2 || return 1
+    # 3+1 times within 300s, osd should stay dead on the 4th time
+    local count=3
+    local sleeptime=10
+    local period=300
+    ceph tell osd.0 injectargs '--osd_max_markdown_count '$count'' || return 1
+    ceph tell osd.0 injectargs '--osd_max_markdown_period '$period'' || return 1
+
+    markdown_N_impl $(($count+1)) $period $sleeptime
+    # down N+1 times ,the osd.0 shoud die
+    ceph osd tree | grep down | grep osd.0 || return 1
+}
+
+function TEST_markdown_boot() {
+    local dir=$1
+
+    run_mon $dir a || return 1
+    run_mgr $dir x || return 1
+    run_osd $dir 0 || return 1
+    run_osd $dir 1 || return 1
+    run_osd $dir 2 || return 1
+
+    # 3 times within 120s, should stay up
+    local count=3
+    local sleeptime=10
+    local period=120
+    ceph tell osd.0 injectargs '--osd_max_markdown_count '$count'' || return 1
+    ceph tell osd.0 injectargs '--osd_max_markdown_period '$period'' || return 1
+
+    markdown_N_impl $count $period $sleeptime
+    #down N times, osd.0 should be up
+    sleep 15  # give osd plenty of time to notice and come back up
+    ceph osd tree | grep up | grep osd.0 || return 1
+}
+
+function TEST_markdown_boot_exceed_time() {
+    local dir=$1
+
+    run_mon $dir a || return 1
+    run_mgr $dir x || return 1
+    run_osd $dir 0 || return 1
+    run_osd $dir 1 || return 1
+    run_osd $dir 2 || return 1
+
+
+    # 3+1 times, but over 40s, > 20s, so should stay up
+    local count=3
+    local period=20
+    local sleeptime=10
+    ceph tell osd.0 injectargs '--osd_max_markdown_count '$count'' || return 1
+    ceph tell osd.0 injectargs '--osd_max_markdown_period '$period'' || return 1
+
+    markdown_N_impl $(($count+1)) $period $sleeptime
+    sleep 15  # give osd plenty of time to notice and come back up
+    ceph osd tree | grep up | grep osd.0 || return 1
+}
+
+main osd-markdown "$@"
+
+# Local Variables:
+# compile-command: "cd ../.. ; make -j4 && test/osd/osd-bench.sh"
+# End: