diff --git a/coverage/check_coverage.sh b/coverage/check_coverage.sh
new file mode 100755
index 0000000000..5dcc1fe0d4
--- /dev/null
+++ b/coverage/check_coverage.sh
@@ -0,0 +1,118 @@
+#!/bin/bash 
+
+line_cover_base=75
+mds_branch_base=70
+snapshot_branch_base=70
+client_branch_base=78
+other_branch_base=65
+line_cover_all=`cat coverage/index.html | grep -A 5  "Lines"  | grep % | awk -F "%" '{print $1}' | awk -F '>' '{print $2}' | awk -F '.' '{print $1}'`
+
+if(("$line_cover_all" < "$line_cover_base"))
+then
+    echo "line cover not ok!.";
+    echo $line_cover_all;
+    exit -1
+else
+    echo "line cover ok!.";
+    echo $line_cover_all;    
+fi
+
+for i in `find coverage -type d | grep mds`;do for j in $i;do find $j -name index.html | xargs cat | grep -A 5 "Branches" | grep % | awk -F '>' '{print $2}' | awk '{print $1}' | awk -F '.' '{print $1}' | grep -v tr;done;done > mds.all
+if [ -s mds.all ]; then    
+    mds_branch=`cat mds.all | awk '{sum+=$1} END {print sum/NR}' | awk -F '.' '{print $1}'`
+else 
+    mds_branch=0
+fi
+if(("$mds_branch" < "$mds_branch_base"))
+then
+    echo "mds_branch cover not ok!.";
+    echo $mds_branch;
+    exit -1
+else
+    echo "mds_branch cover ok!.";
+    echo $mds_branch;    
+fi
+
+for i in `find coverage -type d | grep tools`;do for j in $i;do find $j -name index.html | xargs cat | grep -A 5 "Branches" | grep % | awk -F '>' '{print $2}' | awk '{print $1}' | awk -F '.' '{print $1}' | grep -v tr;done;done > tools.all
+if [ -s tools.all ]; then
+    tools_branch=`cat tools.all | awk '{sum+=$1} END {print sum/NR}' | awk -F '.' '{print $1}'`
+else 
+    tools_branch=0
+fi
+
+if(("$tools_branch" < "$other_branch_base"))
+then
+    echo "tools_branch cover not ok!.";
+    echo $tools_branch;
+    #exit -1
+else
+    echo "tools_branch cover ok!.";
+    echo $tools_branch;    
+fi
+
+for i in `find coverage -type d | grep common`;do for j in $i;do find $j -name index.html | xargs cat | grep -A 5 "Branches" | grep % | awk -F '>' '{print $2}' | awk '{print $1}' | awk -F '.' '{print $1}' | grep -v tr;done;done > common.all
+if [ -s common.all ]; then
+    common_branch=`cat common.all | awk '{sum+=$1} END {print sum/NR}' | awk -F '.' '{print $1}'`
+else 
+    common_branch=0
+fi	
+if(("$common_branch" < "$other_branch_base"))
+then
+    echo "common_branch cover not ok!.";
+    echo $common_branch;
+    exit -1
+else
+    echo "common_branch cover ok!.";
+    echo $common_branch;    
+fi
+
+
+for i in `find coverage -type d | grep chunkserver`;do for j in $i;do find $j -name index.html | xargs cat | grep -A 5 "Branches" | grep % | awk -F '>' '{print $2}' | awk '{print $1}' | awk -F '.' '{print $1}' | grep -v tr;done;done > chunkserver.all
+if [ -s chunkserver.all ]; then
+    chunkserver_branch=`cat chunkserver.all | awk '{sum+=$1} END {print sum/NR}' | awk -F '.' '{print $1}'`
+else 
+    chunkserver_branch=0
+fi
+if(("$chunkserver_branch" < "$other_branch_base"))
+then
+    echo "chunkserver_branch cover not ok!.";
+    echo $chunkserver_branch;
+    exit -1
+else
+    echo "chunkserver_branch cover ok!.";
+    echo $chunkserver_branch;    
+fi
+
+
+for i in `find coverage/client -type d | grep client`;do for j in $i;do find $j -name index.html | xargs cat | grep -A 5 "Branches" | grep % | awk -F '>' '{print $2}' | awk '{print $1}' | awk -F '.' '{print $1}' | grep -v tr;done;done > client.all
+if [ -s chunkserver.all ]; then
+    client_branch=`cat client.all | awk '{sum+=$1} END {print sum/NR}' | awk -F '.' '{print $1}'`
+else 
+    client_branch=0
+fi
+if(("$client_branch" < "$client_branch_base"))
+then
+    echo "client_branch cover not ok!.";
+    echo $client_branch;
+    exit -1
+else
+    echo "client_branch cover ok!.";
+    echo $client_branch;    
+fi
+
+for i in `find coverage -type d | grep fs`;do for j in $i;do find $j -name index.html | xargs cat | grep -A 5 "Branches" | grep % | awk -F '>' '{print $2}' | awk '{print $1}' | awk -F '.' '{print $1}' | grep -v tr;done;done > sfs.all
+if [ -s sfs.all ]; then
+    sfs_branch=`cat sfs.all | awk '{sum+=$1} END {print sum/NR}' | awk -F '.' '{print $1}'`
+else 
+    sfs_branch=0
+fi
+if(("$sfs_branch" < "$other_branch_base"))
+then
+    echo "sfs_branch cover not ok!.";
+    echo $sfs_branch;
+    #exit -1
+else
+    echo "sfs_branch cover ok!.";
+    echo $sfs_branch;    
+fi
+
diff --git a/coverage/filterbr.py b/coverage/filterbr.py
new file mode 100755
index 0000000000..64ee2da06f
--- /dev/null
+++ b/coverage/filterbr.py
@@ -0,0 +1,111 @@
+#!/usr/bin/env python3
+
+# 2017, Georg Sauthoff <mail@gms.tf>, GPLv3
+
+import sys
+
+def skip_comments(lines):
+  state = 0
+  for line in lines:
+    n = len(line)
+    l = ''
+    p = 0
+    while p < n:
+      if state == 0:
+        a = line.find('//', p)
+        b = line.find('/*', p)
+        if a > -1 and (a < b or b == -1):
+          l += line[p:a]
+          p = n
+        elif b > -1 and (b < a or a == -1):
+          l += line[p:b]
+          p = b+2
+          state = 1
+        else:
+          l += line[p:]
+          p = n
+      elif state == 1:
+        a = line.rfind('*/', p)
+        if a == -1:
+          p = n
+        else:
+          p = a + 2
+          state = 0
+    yield l
+
+def cond_lines(lines):
+  state = 0
+  pcnt = 0
+  for nr, line in enumerate(lines, 1):
+    if not line:
+      continue
+    n = len(line)
+    p = 0
+    do_yield = False
+    while p < n:
+      if state == 0:
+#        p = line.strip().startswith('if', p)
+        p = line.find('if', p)
+        if p == -1:
+          p = n
+          continue
+        if (p == 0 or not line[p-1].isalpha()) \
+            and (p+2 == len(line) or not line[p+2].isalpha()):
+          do_yield = True
+          state = 1
+        p += 2
+      elif state == 1:
+        do_yield = True
+        p = line.find('(', p)
+        if p == -1:
+          p = n
+        else:
+          p += 1
+          state = 2
+          pcnt = 1
+      elif state == 2:
+        do_yield = True
+        for p in range(p, n):
+          if line[p] == '(':
+            pcnt += 1
+          elif line[p] == ')':
+            pcnt -= 1
+          if not pcnt:
+            state = 0
+            break
+        p += 1
+    if do_yield:
+      yield nr
+
+def cond_lines_from_file(filename):
+  with open(filename) as f:
+    yield from cond_lines(skip_comments(f))
+
+def filter_lcov_trace(lines):
+  nrs = set()
+  for line in lines:
+    if line.startswith('SF:'):
+      nrs = set(cond_lines_from_file(line[3:-1]))
+    elif line.startswith('BRDA:'):
+      xs = line[5:].split(',')
+      nr = int(xs[0]) if xs else 0
+      if nr not in nrs:
+        continue
+    yield line
+
+def filter_lcov_trace_file(s_filename, d_file):
+  with open(s_filename) as f:
+    for l in filter_lcov_trace(f):
+      print(l, end='', file=d_file)
+
+if __name__ == '__main__':
+  #for l in cond_lines_from_file(sys.argv[1]):
+  #  print(l)
+
+  filter_lcov_trace_file(sys.argv[1], sys.stdout)
+
+  #with open(sys.argv[1]) as f:
+  #  for l in skip_comments(f):
+  #    print(l)
+
+
diff --git a/coverage/gen-coverage-nebd.py b/coverage/gen-coverage-nebd.py
new file mode 100755
index 0000000000..5ce58890a5
--- /dev/null
+++ b/coverage/gen-coverage-nebd.py
@@ -0,0 +1,106 @@
+#!/usr/bin/env python3
+
+# 2017, Georg Sauthoff <mail@gms.tf>, GPLv3
+
+import argparse
+import logging
+import os
+import subprocess
+import shutil
+import sys
+
+sys.path.insert(0, os.path.dirname(__file__))
+import filterbr
+
+log = logging.getLogger(__name__)
+
+#ex_path = [ '/usr/include/*', 'unittest/*', 'lib*/*', '*@exe/*', 'example/*' ]
+ex_path = [ '/usr/include/*', '/usr/local/include/*', '/usr/lib/*', '*/bazel_out/*', '*/k8-dbg/*', 'test/*', '*/test/*', '*/external/*' , '*/include/*' , '*/thirdparties/*' , '*/client_proto/*' ]
+
+brflag = ['--rc', 'lcov_branch_coverage=1']
+
+lcov = 'lcov'
+base = os.path.abspath('.')
+
+cov_init_raw = 'coverage_init_raw.info'
+cov_post_raw = 'coverage_post_raw.info'
+cov_init     = 'coverage_init.info'
+cov_post     = 'coverage_post.info'
+cov_br       = 'coverage.info'
+cov          = 'coverage.info'
+report_dir   = 'coverage'
+
+def setup_logging():
+  log_format      = '{rel_secs:6.1f} {lvl}  {message}'
+  log_date_format = '%Y-%m-%d %H:%M:%S'
+
+  class Relative_Formatter(logging.Formatter):
+    level_dict = { 10 : 'DBG',  20 : 'INF', 30 : 'WRN', 40 : 'ERR',
+        50 : 'CRI' }
+    def format(self, rec):
+      rec.rel_secs = rec.relativeCreated/1000.0
+      rec.lvl = self.level_dict[rec.levelno]
+      return super(Relative_Formatter, self).format(rec)
+
+  log = logging.getLogger() # root logger
+  log.setLevel(logging.DEBUG)
+  ch = logging.StreamHandler()
+  ch.setLevel(logging.INFO)
+  ch.setFormatter(Relative_Formatter(log_format, log_date_format, style='{'))
+  log.addHandler(ch)
+
+def mk_arg_parser():
+  p = argparse.ArgumentParser(
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        description='Do some stuff',
+        epilog='...')
+  p.add_argument('--html', action='store_true', default=True,
+      help='generate HTML report (default: on)')
+  p.add_argument('--no-html', dest='html', action='store_false',
+      help='disable html report generation')
+  p.add_argument('--filter-br', action='store_true', default=True,
+      help='filter branch coverage data (default: on)')
+  p.add_argument('--no-filter-br', dest='filter_br', action='store_false',
+      help='disable branch filtering')
+  return p
+
+def parse_args(*a):
+  arg_parser = mk_arg_parser()
+  args = arg_parser.parse_args(*a)
+  global cov_br
+  if args.filter_br:
+    cov_br = 'coverage_br.info'
+  return args
+
+def run(*args, **kw):
+  log.info('Executing: ' + ' '.join(map(lambda s:"'"+s+"'", args[0])))
+  return subprocess.run(*args, **kw, check=True)
+
+
+def main(args):
+  run([lcov, '--directory',  'src', '--capture', '-o', cov_post_raw] + brflag )
+  run([lcov, '--directory',  'src', '--capture', '--initial', '-o', cov_init_raw])
+
+  for i, o in [ (cov_init_raw, cov_init), (cov_post_raw, cov_post) ]:
+    run([lcov, '--remove', i] + ex_path + [ '-o', o] + brflag)
+
+  run([lcov, '-a', cov_init, '-a', cov_post, '-o', cov_br] + brflag)
+
+  if args.filter_br:
+    log.info('Filtering branch coverage data ({} -> {})'.format(cov_br, cov))
+    with open(cov, 'w') as f:
+      filterbr.filter_lcov_trace_file(cov_br, f)
+
+  if args.html:
+    shutil.rmtree(report_dir, ignore_errors=True)
+    run(['genhtml', cov, '--branch-coverage', '--ignore-errors', 'source', '-o', report_dir])
+
+  return 0
+
+if __name__ == '__main__':
+  setup_logging()
+  args = parse_args()
+  sys.exit(main(args))
+
+
+
diff --git a/coverage/gen-coverage.py b/coverage/gen-coverage.py
new file mode 100755
index 0000000000..6a6926a99f
--- /dev/null
+++ b/coverage/gen-coverage.py
@@ -0,0 +1,106 @@
+#!/usr/bin/env python3
+
+# 2017, Georg Sauthoff <mail@gms.tf>, GPLv3
+
+import argparse
+import logging
+import os
+import subprocess
+import shutil
+import sys
+
+sys.path.insert(0, os.path.dirname(__file__))
+import filterbr
+
+log = logging.getLogger(__name__)
+
+#ex_path = [ '/usr/include/*', 'unittest/*', 'lib*/*', '*@exe/*', 'example/*' ]
+ex_path = [ '/usr/include/*', '/usr/local/include/*', '/usr/lib/*', '*/bazel_out/*', '*/k8-dbg/*', 'test/*', '*/test/*', '*/external/*' , '*/include/*' , '*/thirdparties/*' ]
+
+brflag = ['--rc', 'lcov_branch_coverage=1']
+
+lcov = 'lcov'
+base = os.path.abspath('.')
+
+cov_init_raw = 'coverage_init_raw.info'
+cov_post_raw = 'coverage_post_raw.info'
+cov_init     = 'coverage_init.info'
+cov_post     = 'coverage_post.info'
+cov_br       = 'coverage.info'
+cov          = 'coverage.info'
+report_dir   = 'coverage'
+
+def setup_logging():
+  log_format      = '{rel_secs:6.1f} {lvl}  {message}'
+  log_date_format = '%Y-%m-%d %H:%M:%S'
+
+  class Relative_Formatter(logging.Formatter):
+    level_dict = { 10 : 'DBG',  20 : 'INF', 30 : 'WRN', 40 : 'ERR',
+        50 : 'CRI' }
+    def format(self, rec):
+      rec.rel_secs = rec.relativeCreated/1000.0
+      rec.lvl = self.level_dict[rec.levelno]
+      return super(Relative_Formatter, self).format(rec)
+
+  log = logging.getLogger() # root logger
+  log.setLevel(logging.DEBUG)
+  ch = logging.StreamHandler()
+  ch.setLevel(logging.INFO)
+  ch.setFormatter(Relative_Formatter(log_format, log_date_format, style='{'))
+  log.addHandler(ch)
+
+def mk_arg_parser():
+  p = argparse.ArgumentParser(
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        description='Do some stuff',
+        epilog='...')
+  p.add_argument('--html', action='store_true', default=True,
+      help='generate HTML report (default: on)')
+  p.add_argument('--no-html', dest='html', action='store_false',
+      help='disable html report generation')
+  p.add_argument('--filter-br', action='store_true', default=True,
+      help='filter branch coverage data (default: on)')
+  p.add_argument('--no-filter-br', dest='filter_br', action='store_false',
+      help='disable branch filtering')
+  return p
+
+def parse_args(*a):
+  arg_parser = mk_arg_parser()
+  args = arg_parser.parse_args(*a)
+  global cov_br
+  if args.filter_br:
+    cov_br = 'coverage_br.info'
+  return args
+
+def run(*args, **kw):
+  log.info('Executing: ' + ' '.join(map(lambda s:"'"+s+"'", args[0])))
+  return subprocess.run(*args, **kw, check=True)
+
+
+def main(args):
+  run([lcov, '--directory',  'src', '--capture', '-o', cov_post_raw] + brflag )
+  run([lcov, '--directory',  'src', '--capture', '--initial', '-o', cov_init_raw])
+
+  for i, o in [ (cov_init_raw, cov_init), (cov_post_raw, cov_post) ]:
+    run([lcov, '--remove', i] + ex_path + [ '-o', o] + brflag)
+
+  run([lcov, '-a', cov_init, '-a', cov_post, '-o', cov_br] + brflag)
+
+  if args.filter_br:
+    log.info('Filtering branch coverage data ({} -> {})'.format(cov_br, cov))
+    with open(cov, 'w') as f:
+      filterbr.filter_lcov_trace_file(cov_br, f)
+
+  if args.html:
+    shutil.rmtree(report_dir, ignore_errors=True)
+    run(['genhtml', cov, '--branch-coverage', '--ignore-errors', 'source', '-o', report_dir])
+
+  return 0
+
+if __name__ == '__main__':
+  setup_logging()
+  args = parse_args()
+  sys.exit(main(args))
+
+
+
diff --git a/coverage/gen-coverage2.py b/coverage/gen-coverage2.py
new file mode 100755
index 0000000000..43b9ccde78
--- /dev/null
+++ b/coverage/gen-coverage2.py
@@ -0,0 +1,106 @@
+#!/usr/bin/env python3
+
+# 2017, Georg Sauthoff <mail@gms.tf>, GPLv3
+
+import argparse
+import logging
+import os
+import subprocess
+import shutil
+import sys
+
+sys.path.insert(0, os.path.dirname(__file__))
+import filterbr
+
+log = logging.getLogger(__name__)
+
+#ex_path = [ '/usr/include/*', 'unittest/*', 'lib*/*', '*@exe/*', 'example/*' ]
+ex_path = [ '/usr/include/*', '/usr/local/include/*', '/usr/lib/*', '*/bazel_out/*', '*/k8-dbg/*', 'test/*', '*/test/*', '*/external/*' , '*/include/*' , '*/thirdparties/*' , '*/snapshotcloneserver/*' ]
+
+brflag = ['--rc', 'lcov_branch_coverage=1']
+
+lcov = 'lcov'
+base = os.path.abspath('.')
+
+cov_init_raw = 'coverage_init_raw.info'
+cov_post_raw = 'coverage_post_raw.info'
+cov_init     = 'coverage_init.info'
+cov_post     = 'coverage_post.info'
+cov_br       = 'coverage.info'
+cov          = 'coverage.info'
+report_dir   = 'coverage'
+
+def setup_logging():
+  log_format      = '{rel_secs:6.1f} {lvl}  {message}'
+  log_date_format = '%Y-%m-%d %H:%M:%S'
+
+  class Relative_Formatter(logging.Formatter):
+    level_dict = { 10 : 'DBG',  20 : 'INF', 30 : 'WRN', 40 : 'ERR',
+        50 : 'CRI' }
+    def format(self, rec):
+      rec.rel_secs = rec.relativeCreated/1000.0
+      rec.lvl = self.level_dict[rec.levelno]
+      return super(Relative_Formatter, self).format(rec)
+
+  log = logging.getLogger() # root logger
+  log.setLevel(logging.DEBUG)
+  ch = logging.StreamHandler()
+  ch.setLevel(logging.INFO)
+  ch.setFormatter(Relative_Formatter(log_format, log_date_format, style='{'))
+  log.addHandler(ch)
+
+def mk_arg_parser():
+  p = argparse.ArgumentParser(
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        description='Do some stuff',
+        epilog='...')
+  p.add_argument('--html', action='store_true', default=True,
+      help='generate HTML report (default: on)')
+  p.add_argument('--no-html', dest='html', action='store_false',
+      help='disable html report generation')
+  p.add_argument('--filter-br', action='store_true', default=True,
+      help='filter branch coverage data (default: on)')
+  p.add_argument('--no-filter-br', dest='filter_br', action='store_false',
+      help='disable branch filtering')
+  return p
+
+def parse_args(*a):
+  arg_parser = mk_arg_parser()
+  args = arg_parser.parse_args(*a)
+  global cov_br
+  if args.filter_br:
+    cov_br = 'coverage_br.info'
+  return args
+
+def run(*args, **kw):
+  log.info('Executing: ' + ' '.join(map(lambda s:"'"+s+"'", args[0])))
+  return subprocess.run(*args, **kw, check=True)
+
+
+def main(args):
+  run([lcov, '--directory',  'src', '--capture', '-o', cov_post_raw] + brflag )
+  run([lcov, '--directory',  'src', '--capture', '--initial', '-o', cov_init_raw])
+
+  for i, o in [ (cov_init_raw, cov_init), (cov_post_raw, cov_post) ]:
+    run([lcov, '--remove', i] + ex_path + [ '-o', o] + brflag)
+
+  run([lcov, '-a', cov_init, '-a', cov_post, '-o', cov_br] + brflag)
+
+  if args.filter_br:
+    log.info('Filtering branch coverage data ({} -> {})'.format(cov_br, cov))
+    with open(cov, 'w') as f:
+      filterbr.filter_lcov_trace_file(cov_br, f)
+
+  if args.html:
+    shutil.rmtree(report_dir, ignore_errors=True)
+    run(['genhtml', cov, '--branch-coverage', '--ignore-errors', 'source', '-o', report_dir])
+
+  return 0
+
+if __name__ == '__main__':
+  setup_logging()
+  args = parse_args()
+  sys.exit(main(args))
+
+
+
diff --git a/coverage/test.py b/coverage/test.py
new file mode 100755
index 0000000000..7c457e795f
--- /dev/null
+++ b/coverage/test.py
@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+
+def lls(s):
+    d = {}
+    start = 0
+    ans = 0
+    for i,c in enumerate(s):
+        print "i,c %s %s" %(i,c)
+        if c in d:
+            print "c=%s" %c
+            start = max(start, d[c] + 1)
+            print "start=%s" %start
+        d[c] = i
+        print "d = %s" %d
+        ans = max(ans, i - start + 1)
+        print "ans=%s" %ans
+    print d
+    print ans
+
+lls("afal")
diff --git a/coverage/tmp.py b/coverage/tmp.py
new file mode 100755
index 0000000000..78bfda2a3b
--- /dev/null
+++ b/coverage/tmp.py
@@ -0,0 +1,9 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+a = ['src/chunkserver/datastore/chunkfile_pool.cpp', 'src/fs/ext4_filesystem_impl.cpp', 'src/fs/wrap_posix.cpp']
+
+a = [c.split('/', 1)[1] for c in a]
+print a 
+
+
diff --git a/coverage/ut_incremental_check.py b/coverage/ut_incremental_check.py
new file mode 100755
index 0000000000..2f757123a0
--- /dev/null
+++ b/coverage/ut_incremental_check.py
@@ -0,0 +1,226 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+######################################################################
+# Purpose:    calculate UT coverage of git commits' new code
+# Useage:    ./ut_incremental_check.py
+# Version:    Initial    Version    by wahaha02
+######################################################################
+
+__version__ = 'V1.0'
+__author__ = 'wahaha02'
+__date__ = '2016-7-25'
+__doc__ = '''
+PURPOSE:
+calculate UT coverage of git commits' new code
+
+USAGE:
+./ut_incremental_check.py <since>..<until> <monitor_c_files> <lcov_dir> <threshold>
+example: 
+./ut_incremental_check.py "227b032..79196ba" '["source/soda/sp/lssp/i2c-v2/ksource"]' "coverage" 0.6
+
+WORK PROCESS:
+get changed file list between <since> and <until> , filter by <monitor_c_files> options;
+get changed lines per changed file;
+based on <lcov_dir>, search .gcov.html per file, and get uncover lines;
+create report file:ut_incremental_check_report.html and check <threshold> (cover lines/new lines).
+
+UT:
+./ut_incremental_check.py ut
+'''
+
+__todo__ = '''
+TODO LIST:
+    1. support svn
+    2. refactory html report by django web template
+    3. add commit info in html report
+    4. prompt user/commit/date info when mouse point to uncovered line
+    5. ...
+'''
+
+import sys, os, re
+import json
+import commands
+from HTMLParser import HTMLParser
+from pprint import *
+ 
+DEBUG = 0 
+
+class GcovHTMLParser(HTMLParser):
+    def __init__(self):
+        HTMLParser.__init__(self)
+        self.uncovers = []
+        self.covers = []
+        self.islineNum = False
+        self.lineNum = 0
+
+    def handle_starttag(self, tag, attrs):
+        if tag == "span":
+            for a in attrs:
+                if a == ('class', 'lineNum'):
+                    self.islineNum = True
+                if a == ('class', 'lineNoCov'):
+                    self.uncovers.append(self.lineNum)
+                if a == ('class', 'lineCov'):
+                    self.covers.append(self.lineNum)
+                    
+    def handle_data(self, data):
+        if self.islineNum:
+            try:
+                self.lineNum = int(data)
+            except:
+                self.lineNum = -1
+            
+    def handle_endtag(self, tag):
+        if tag == "span":
+            self.islineNum = False
+    
+class UTCover(object) :
+    def __init__(self, since_until, monitor, lcov_dir, thresh) :
+        self.since, self.until = since_until.split('..')
+        self.monitor = json.loads(monitor)
+        self.lcov_dir = lcov_dir
+        self.thresh = float(thresh)
+        
+    def get_src(self):
+        # self.since, self.until, self.monitor
+        satus, output = commands.getstatusoutput("git diff --name-only %s %s" %(self.since, self.until))
+        src_files = [f for f in output.split('\n') 
+                        for m in self.monitor if m in f 
+                        if os.path.splitext(f)[1][1:] in ['c', 'cpp']]
+        if DEBUG: pprint(src_files)
+        for i in src_files:
+            if i.find("main") > 0:
+                src_files.remove(i)
+        return src_files
+    
+    def get_change(self, src_files):
+        # self.since, self.until
+        changes = {}
+        for f in src_files:
+            satus, output = commands.getstatusoutput("git log --oneline %s..%s %s | awk '{print $1}'" %(self.since, self.until, f))
+            commits = output.split('\n')
+            cmd = "git blame %s | grep -E '(%s)' | awk  -F' *|)' '{print $6}'" %(f, '|'.join(commits))
+            satus, lines = commands.getstatusoutput(cmd)
+            changes[f] = [ int(i) for i in lines.split('\n') if i.isdigit() ]
+
+            
+        if DEBUG: pprint(changes)
+        return changes
+    
+    def get_ghp(self, f):
+        gcovfile = os.path.join(self.lcov_dir, f + '.gcov.html')
+        if not os.path.exists(gcovfile):
+            return None
+            
+        ghp = GcovHTMLParser()
+        ghp.feed(open(gcovfile, 'r').read())
+
+        return ghp
+            
+    def get_lcov_data(self, changes):
+        # self.lcov_dir
+        uncovers = {}
+        lcov_changes = {}
+        
+        for f, lines in changes.items():
+            #print f
+            f = f.split('/', 1)[1]
+            #f = [c.split('/', 1)[1] for c in f]
+            ghp = self.get_ghp(f)
+            if not ghp:
+                uncovers[f] = lines
+                lcov_changes[f] = lines
+                continue
+        
+            if DEBUG: print f, ghp.uncovers, ghp.covers, lines
+            lcov_changes[f] = sorted(list(set(ghp.uncovers + ghp.covers) & set(lines)))
+            uncov_lines = list(set(ghp.uncovers) & set(lines))
+            if len(uncov_lines) != 0:
+                uncovers[f] = sorted(uncov_lines)
+            ghp.close()    
+        
+        return lcov_changes, uncovers
+    
+    def create_uncover_trs(self, uncovers):
+        tr_format = '''
+    <tr>
+      <td class="coverFile"><a href="%(file)s.gcov.html">%(file)s</a></td>
+      <td class="coverFile">%(uncov_lines)s </td>
+    </tr>
+    
+        '''
+        trs = ''
+        for f,v in uncovers.items():
+            gcovfile = os.path.join(self.lcov_dir, f + '.gcov.html')
+            if os.path.exists(gcovfile):
+                s = ''
+                p = re.compile(r'^<span class="lineNum">\s*(?P<num>\d+)\s*</span>')
+                for line in open(gcovfile, 'r').readlines():
+                    ps = p.search(line)
+                    if ps:
+                        s += '<a name="%s">' %ps.group('num') + line + '</a>'
+                    else:
+                        s += line
+                open(gcovfile, 'w').write(s)    
+
+            data = {'file':f, 'uncov_lines':
+                ", ".join(['<a href="%s.gcov.html#%d">%d</a>' %(f, i, i) for i in v])}
+            trs += tr_format %data
+            
+        return trs
+        
+    def create_report(self, changes, uncovers):
+        change_linenum, uncov_linenum = 0, 0
+        for k,v in changes.items():
+            change_linenum += len(v)
+        for k,v in uncovers.items():
+            uncov_linenum += len(v)
+        
+        cov_linenum = change_linenum - uncov_linenum
+        coverage = round(cov_linenum * 1.0 / change_linenum 
+                            if change_linenum > 0 else 1, 4)
+        
+        template = open('ut_incremental_coverage_report.template', 'r').read()
+        data = {    'cov_lines':cov_linenum,
+                    'change_linenum':change_linenum,
+                    'coverage': coverage * 100,
+                    'uncover_trs': self.create_uncover_trs(uncovers)}
+        open(os.path.join(self.lcov_dir, 'ut_incremental_coverage_report.html'),
+            'w').write(template %data)    
+        
+        return coverage
+    
+    def check(self):
+        # main function
+        src_files = self.get_src()
+        changes = self.get_change(src_files)
+        lcov_changes, uncovers = self.get_lcov_data(changes)
+        return 0 if self.create_report(lcov_changes, uncovers) > self.thresh else -1 
+        
+if len(sys.argv) == 1:
+    print __doc__
+    sys.exit(0)
+if sys.argv[1] == 'ut':
+    monitor, lcov_dir, threshold = ['["src/"]', "/root/.cache/bazel/_bazel_root/6f45ce5b16fddc736efcfa6b0a4c96a2/execroot/curve/bazel-out/k8-dbg/bin/coverage", 0.95]
+    test1 = ["960fc84f..9a928260", monitor, lcov_dir, threshold]
+    if DEBUG: print "test1: ", test1
+    ut = UTCover(*test1)
+    src_files = ut.get_src()
+    print src_files
+    print "====================="
+    changes = ut.get_change(src_files)
+    print "====================="
+    lcov_changes, uncovers = ut.get_lcov_data(changes)
+    print "====================="
+    print uncovers
+    print "====================="
+    rate = ut.create_report(changes, uncovers)
+    print rate
+    print "===================="
+    
+    
+    sys.exit(0)
+    
+ret = UTCover(*sys.argv[1:]).check()
+sys.exit(ret)
+
diff --git a/coverage/ut_incremental_check_nebd.py b/coverage/ut_incremental_check_nebd.py
new file mode 100644
index 0000000000..9b0baca20b
--- /dev/null
+++ b/coverage/ut_incremental_check_nebd.py
@@ -0,0 +1,252 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+######################################################################
+# Purpose:    calculate UT coverage of git commits' new code
+# Useage:    ./ut_incremental_check.py
+# Version:    Initial    Version    by wahaha02
+######################################################################
+
+__version__ = 'V1.0'
+__author__ = 'wahaha02'
+__date__ = '2016-7-25'
+__doc__ = '''
+PURPOSE:
+calculate UT coverage of git commits' new code
+
+USAGE:
+./ut_incremental_check.py <since>..<until> <monitor_c_files> <lcov_dir> <threshold>
+example: 
+./ut_incremental_check.py "227b032..79196ba" '["source/soda/sp/lssp/i2c-v2/ksource"]' "coverage" 0.6
+
+WORK PROCESS:
+get changed file list between <since> and <until> , filter by <monitor_c_files> options;
+get changed lines per changed file;
+based on <lcov_dir>, search .gcov.html per file, and get uncover lines;
+create report file:ut_incremental_check_report.html and check <threshold> (cover lines/new lines).
+
+UT:
+./ut_incremental_check.py ut
+'''
+
+__todo__ = '''
+TODO LIST:
+    1. support svn
+    2. refactory html report by django web template
+    3. add commit info in html report
+    4. prompt user/commit/date info when mouse point to uncovered line
+    5. ...
+'''
+
+import sys, os, re
+import json
+import commands
+from HTMLParser import HTMLParser
+from pprint import *
+ 
+DEBUG = 0
+
+class GcovHTMLParser(HTMLParser):
+    def __init__(self):
+        HTMLParser.__init__(self)
+        self.uncovers = []
+        self.covers = []
+        self.islineNum = False
+        self.lineNum = 0
+
+    def handle_starttag(self, tag, attrs):
+        if tag == "span":
+            for a in attrs:
+                if a == ('class', 'lineNum'):
+                    self.islineNum = True
+                if a == ('class', 'lineNoCov'):
+                    self.uncovers.append(self.lineNum)
+                if a == ('class', 'lineCov'):
+                    self.covers.append(self.lineNum)
+                    
+    def handle_data(self, data):
+        if self.islineNum:
+            try:
+                self.lineNum = int(data)
+            except:
+                self.lineNum = -1
+            
+    def handle_endtag(self, tag):
+        if tag == "span":
+            self.islineNum = False
+    
+class UTCover(object) :
+    def __init__(self, since_until, monitor, lcov_dir, thresh) :
+        self.since, self.until = since_until.split('..')
+        self.monitor = json.loads(monitor)
+        self.lcov_dir = lcov_dir
+        self.thresh = float(thresh)
+        
+    def get_src(self):
+        # self.since, self.until, self.monitor
+        satus, output = commands.getstatusoutput("git diff --name-only %s %s" %(self.since, self.until))
+        src_files = [f for f in output.split('\n') 
+                        for m in self.monitor if m in f 
+                        if os.path.splitext(f)[1][1:] in ['c', 'cpp', 'cc']]
+        exclude = ['src/test']
+        src_files_clean = []
+        for f in src_files:
+            need_excluded = False
+            for e in exclude:
+                if e in f:
+                    need_excluded = True
+                    break
+            if not need_excluded:
+                src_files_clean.append(f)
+        print src_files_clean
+        if DEBUG: pprint(src_files)
+        return src_files_clean
+    
+    def get_change(self, src_files):
+        # self.since, self.until
+        changes = {}
+        for f in src_files:
+            satus, output = commands.getstatusoutput("git log --oneline %s..%s %s | awk '{print $1}'" %(self.since, self.until, f))
+            commits = output.split('\n')
+            cmd = "git blame %s | grep -E '(%s)' | cut -d\) -f1 | awk '{print $NF}'" %(f, '|'.join(commits))
+            print cmd
+            satus, lines = commands.getstatusoutput(cmd)
+            changes[f.split("src/")[1]] = [ int(i) for i in lines.split('\n') if i.isdigit() ]
+
+            
+        if DEBUG: pprint(changes)
+        print changes
+        return changes
+    
+    def get_ghp(self, f):
+        gcovfile = os.path.join(self.lcov_dir, f + '.gcov.html')
+        if not os.path.exists(gcovfile):
+            print "%s does not exist" % gcovfile
+            return None
+            
+        ghp = GcovHTMLParser()
+        ghp.feed(open(gcovfile, 'r').read())
+
+        return ghp
+            
+    def get_lcov_data(self, changes):
+        # self.lcov_dir
+        uncovers = {}
+        lcov_changes = {}
+        
+        for f, lines in changes.items():
+            ghp = self.get_ghp(f)
+            if not ghp:
+                uncovers[f] = lines
+                lcov_changes[f] = lines
+                continue
+        
+            if DEBUG: print f, ghp.uncovers, ghp.covers, lines
+            lcov_changes[f] = sorted(list(set(ghp.uncovers + ghp.covers) & set(lines)))
+            uncov_lines = list(set(ghp.uncovers) & set(lines))
+            if len(uncov_lines) != 0:
+                uncovers[f] = sorted(uncov_lines)
+            ghp.close()    
+        
+        return lcov_changes, uncovers
+    
+    def create_uncover_trs(self, uncovers):
+        tr_format = '''
+    <tr>
+      <td class="coverFile"><a href="%(file)s.gcov.html">%(file)s</a></td>
+      <td class="coverFile">%(uncov_lines)s </td>
+    </tr>
+    
+        '''
+        trs = ''
+        for f,v in uncovers.items():
+            gcovfile = os.path.join(self.lcov_dir, f + '.gcov.html')
+            if os.path.exists(gcovfile):
+                s = ''
+                p = re.compile(r'^<span class="lineNum">\s*(?P<num>\d+)\s*</span>')
+                for line in open(gcovfile, 'r').readlines():
+                    ps = p.search(line)
+                    if ps:
+                        s += '<a name="%s">' %ps.group('num') + line + '</a>'
+                    else:
+                        s += line
+                open(gcovfile, 'w').write(s)    
+
+            data = {'file':f, 'uncov_lines':
+                ", ".join(['<a href="%s.gcov.html#%d">%d</a>' %(f, i, i) for i in v])}
+            trs += tr_format %data
+            
+        return trs
+        
+    def create_report(self, changes, uncovers):
+        change_linenum, uncov_linenum = 0, 0
+        for k,v in changes.items():
+            change_linenum += len(v)
+        for k,v in uncovers.items():
+            uncov_linenum += len(v)
+        
+        cov_linenum = change_linenum - uncov_linenum
+        coverage = round(cov_linenum * 1.0 / change_linenum 
+                            if change_linenum > 0 else 1, 4)
+        
+        template = open('ut_incremental_coverage_report.template', 'r').read()
+        data = {    'cov_lines':cov_linenum,
+                    'change_linenum':change_linenum,
+                    'coverage': coverage * 100,
+                    'uncover_trs': self.create_uncover_trs(uncovers)}
+        open(os.path.join(self.lcov_dir, 'ut_incremental_coverage_report.html'),
+            'w').write(template %data)    
+        
+        return coverage
+    
+    def check(self):
+        # main function
+        src_files = self.get_src()
+        changes = self.get_change(src_files)
+        lcov_changes, uncovers = self.get_lcov_data(changes)
+        return 0 if self.create_report(lcov_changes, uncovers) > self.thresh else 1
+        
+if len(sys.argv) == 1:
+    print __doc__
+    sys.exit(0)
+if sys.argv[1] == 'ut':
+    monitor, lcov_dir, threshold = ['["source/soda/sp/lssp/i2c-v2/ksource"]', "coverage", 0.8]
+    test1 = ["b2016fdb..11440652", monitor, lcov_dir, threshold]
+    if DEBUG: print "test1: ", test1
+    ut = UTCover(*test1)
+    src_files = ut.get_src()
+    assert(src_files == [])
+    changes = ut.get_change(src_files)
+    assert(changes == {})
+    lcov_changes, uncovers = ut.get_lcov_data(changes)
+    assert(uncovers == {})
+    rate = ut.create_report(changes, uncovers)
+    assert(rate == 1)
+    assert(ut.check() == 0)
+    
+    test2 = [
+        "227b03259b33360e2309274f3927c38457d84dd3..79196baabed99661bd31a201ead6764f23a2884c", 
+        monitor, lcov_dir, threshold]
+    if DEBUG: print "test2: ", test2
+    ut = UTCover(*test2)
+    src_files = ut.get_src()
+    assert(src_files == ['source/soda/sp/lssp/i2c-v2/ksource/bsp_i2c_dev.c', 'source/soda/sp/lssp/i2c-v2/ksource/chips/bsp_i2c_cfcuctrl.c', 'source/soda/sp/lssp/i2c-v2/ksource/chips/bsp_i2c_opt.c', 'source/soda/sp/lssp/i2c-v2/ksource/chips/bsp_i2c_pcie.c'])
+    changes = ut.get_change(src_files)
+    assert(changes ==  {'source/soda/sp/lssp/i2c-v2/ksource/chips/bsp_i2c_pcie.c': [78], 'source/soda/sp/lssp/i2c-v2/ksource/chips/bsp_i2c_cfcuctrl.c': [56, 57, 58, 59, 60, 130, 131, 132], 'source/soda/sp/lssp/i2c-v2/ksource/chips/bsp_i2c_opt.c': [68, 69, 115, 118, 124, 125, 126, 454, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 471, 721], 'source/soda/sp/lssp/i2c-v2/ksource/bsp_i2c_dev.c': [494, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 625, 626, 627, 628, 629, 630, 631, 632, 633, 634, 635, 636, 637, 638, 639, 640, 641, 642, 643, 644, 645, 646, 647, 648, 649, 650, 651, 652]})
+    lcov_changes, uncovers = ut.get_lcov_data(changes)
+    assert( lcov_changes == {'source/soda/sp/lssp/i2c-v2/ksource/chips/bsp_i2c_pcie.c': [78], 'source/soda/sp/lssp/i2c-v2/ksource/chips/bsp_i2c_cfcuctrl.c': [56, 57, 58, 59, 60, 130, 131, 132], 'source/soda/sp/lssp/i2c-v2/ksource/chips/bsp_i2c_opt.c': [125, 459, 461, 462, 471], 'source/soda/sp/lssp/i2c-v2/ksource/bsp_i2c_dev.c': [496, 498, 502, 503, 504, 625, 629, 630, 631, 633, 634, 636, 638, 639, 643, 644, 649, 650]}) 
+    assert(uncovers == {'source/soda/sp/lssp/i2c-v2/ksource/chips/bsp_i2c_pcie.c': [78], 'source/soda/sp/lssp/i2c-v2/ksource/chips/bsp_i2c_cfcuctrl.c': [56, 57, 58, 59, 60, 130, 131, 132], 'source/soda/sp/lssp/i2c-v2/ksource/chips/bsp_i2c_opt.c': [125, 471], 'source/soda/sp/lssp/i2c-v2/ksource/bsp_i2c_dev.c': [502, 503, 504, 643, 644]})
+    rate = ut.create_report(changes, uncovers)
+    assert(0.8 > rate > 0.6)
+    assert(ut.check() == 1)
+    
+    test3 = ['d98b93e705a227389e7cdc4b43252f4194a6cb7a..e8876ff5fe8ee0e61865315a67bd395f5d7f63f7 ',
+            monitor, lcov_dir, threshold]
+    if DEBUG: print "test3: ", test3
+    ut = UTCover(*test3)
+    assert(ut.check() == 0)    
+    
+    sys.exit(0)
+    
+ret = UTCover(*sys.argv[1:]).check()
+sys.exit(ret)
+
diff --git a/curve-ansible/roles/install_package/tasks/include/copy_file_to_remote.yml b/curve-ansible/roles/install_package/tasks/include/copy_file_to_remote.yml
index 216de4b63f..3adc88dcc2 100644
--- a/curve-ansible/roles/install_package/tasks/include/copy_file_to_remote.yml
+++ b/curve-ansible/roles/install_package/tasks/include/copy_file_to_remote.yml
@@ -29,8 +29,8 @@
 - name: copy file with sudo
   block:
     - name: clear tmp dir
-      become: false
-      shell: rm -rf {{ tmp_dir }}
+      become: true
+      shell: sudo rm -rf {{ tmp_dir }}
     - name: create tmp dir
       become: false
       shell: mkdir -p {{ tmp_dir }}
diff --git a/localut.sh b/localut.sh
new file mode 100644
index 0000000000..925be0a8ca
--- /dev/null
+++ b/localut.sh
@@ -0,0 +1,84 @@
+#!/bin/bash
+bash replace-curve-repo.sh
+WORKSPACE=`pwd`
+rm -fr ${WORKSPACE}/curve/unittest
+rm -fr ${WORKSPACE}/runlog
+mkdir ${WORKSPACE}/curve_unittest/
+set -e
+ulimit -a
+ulimit -c unlimited
+ulimit -a
+ps -ef | grep chunkserver | grep -v grep | awk '{print $2}' | xargs kill -9 || true
+ps -ef | grep mds | grep -v grep | awk '{print $2}' | xargs kill -9 || true
+ps -ef | grep etcd | grep -v grep | awk '{print $2}' | xargs kill -9 || true
+ps -ef | grep test | grep -v grep | awk '{print $2}' | xargs kill -9 || true
+
+cd ${WORKSPACE}/thirdparties/etcdclient && make clean && make all
+
+export LD_LIBRARY_PATH=${WORKSPACE}thirdparties/etcdclient:${LD_LIBRARY_PATH}
+cd ${WORKSPACE}
+mkdir runlog
+bazel clean --async
+sleep 5
+
+bazel build tools/... --compilation_mode=dbg --collect_code_coverage  --jobs=64 --copt   -DHAVE_ZLIB=1 --define=with_glog=true --define=libunwind=true --copt -DGFLAGS_NS=google --copt -Wno-error=format-security --copt -DUSE_BTHREAD_MUTEX
+bazel build src/... --compilation_mode=dbg --collect_code_coverage  --jobs=64 --copt   -DHAVE_ZLIB=1 --define=with_glog=true --define=libunwind=true --copt -DGFLAGS_NS=google --copt -Wno-error=format-security --copt -DUSE_BTHREAD_MUTEX
+bazel build test/... --compilation_mode=dbg --collect_code_coverage  --jobs=64 --copt   -DHAVE_ZLIB=1 --define=with_glog=true --define=libunwind=true --copt -DGFLAGS_NS=google --copt -Wno-error=format-security --copt -DUSE_BTHREAD_MUTEX
+for i in 0 1 2 3; do mkdir -p $i/{copysets,recycler}; done
+for i in `find bazel-bin/test/ -type f -executable -exec file -i '{}' \; | grep  -E 'x-executable|x-sharedlib' | grep "charset=binary" | grep -v ".so"|grep test | grep -Ev 'snapshot-server|snapshot_dummy_server|client-test|server-test|multi|topology_dummy|curve_client_workflow|curve_fake_mds' | awk -F":" '{print $1'}`;do $i 2>&1 | tee $i.log  & done  
+
+count=2
+check=0
+while [ $count -gt 1 ]
+do
+    sleep 60
+    count=`ps -ef | grep test | wc -l`
+    echo "==========================================================================================================================================="
+
+    process=`ps -ef  | grep test`
+    echo $process
+    echo ${count}
+    echo "==========================================================================================================================================="
+
+   #for i in `find bazel-bin/test/ -type f -executable -exec file -i '{}' \; | grep  -E 'x-executable|x-sharedlib' | grep "charset=binary" | grep -v ".so"|grep test | grep -Ev 'snapshot-server|snapshot_dummy_server|client-test|server-test|multi|topology_dummy|curve_client_workflow|curve_client_workflow|curve_fake_mds' | awk -F":" '{print $1'}`;do cat $i.log;done
+    
+    echo "==========================================================================================================================================="
+    f1=""
+    f2=""
+    f1_file=""
+    f2_file=""
+    now_test=`ps -ef | grep '\-test' | grep -v grep | awk '{print $8}'`
+    echo "now_test case is "$now_test
+    for i in `find bazel-bin/test/ -type f -executable -exec file -i '{}' \; | grep  -E 'x-executable|x-sharedlib' | grep "charset=binary" | grep -v ".so"|grep test | grep -Ev 'snapshot-server|snapshot_dummy_server|client-test|server-test|multi|topology_dummy|curve_client_workflow|curve_client_workflow|curve_fake_mds' | awk -F":" '{print $1'}`;do a=`cat $i.log | grep "FAILED  ]" | wc -l`;if [ $a -gt 0 ];then f1=`cat $i.log | grep "FAILED  ]"`;f1_file="${i}.log"; echo "fail test is $i"; check=1; fi;done
+    for i in `find bazel-bin/test/ -type f -executable -exec file -i '{}' \; | grep  -E 'x-executable|x-sharedlib' | grep "charset=binary" | grep -v ".so"|grep test | grep -Ev 'snapshot-server|snapshot_dummy_server|client-test|server-test|multi|topology_dummy|curve_client_workflow|curve_client_workflow|curve_fake_mds' | awk -F":" '{print $1'}`;do b=`cat $i.log | grep "Failure" | wc -l`;if [ $b -gt 0 ];then f2=`cat $i.log | grep "Failure"`; f2_file="${i}.log";echo "fail test is $i"; check=1; fi;done
+    if [ $check -eq 1 ];then
+         echo "=========================test fail,Here is the logs of failed use cases========================="
+         echo "=========================test fail,Here is the logs of failed use cases========================="
+         echo "=========================test fail,Here is the logs of failed use cases========================="
+         echo $f1
+         echo $f2
+         if [ "$f1" != "" ];then
+             echo "test ${f1_file} log is --------------------------------------------->>>>>>>>"
+             cat ${f1_file}
+         fi
+         if [ "$f2" != "" ];then
+         echo "test ${f2_file} log is --------------------------------------------->>>>>>>>"
+         cat ${f2_file}
+         fi
+         exit -1
+    fi
+done
+
+    
+#echo "==========================================================================================================================================="
+
+#for i in `find bazel-bin/test/ -type f -executable -exec file -i '{}' \; | grep  -E 'x-executable|x-sharedlib' | grep "charset=binary" | grep -v ".so"|grep test | grep -Ev 'snapshot-server|snapshot_dummy_server|client-test|server-test|multi|topology_dummy|curve_client_workflow|curve_client_workflow|curve_fake_mds' | awk -F":" '{print $1'}`;do cat $i.log;done
+
+sleep 30
+
+cd bazel-bin
+./../coverage/gen-coverage.py
+./../coverage/check_coverage.sh
+cp -r coverage ${WORKSPACE}
+gcovr -x -r src -e ".*test/.*" -e ".*\.h" -e ".*usr/include/.*" -e ".*/thirdparties/*" -e "/usr/lib/*" -e ".*/external/*" -e ".*/bazel_out/*" -e "/usr/local/include/*" -e "test/*" -e ".*main\.cpp" -e ".*/_objs/snapshotcloneserver/*" -e ".*/_objs/mds/*" --output coverage.xml
+cp coverage.xml ${WORKSPACE}