system sh/stop_dnodes.sh
system sh/deploy.sh -n dnode1 -i 1
system sh/exec.sh -n dnode1 -s start -v
sql connect

print =============== step1: show dnodes

$x = 0
step1:
	$x = $x + 1
	sleep 1000
	if $x == 10 then
	  print ----> dnode not ready!
		return -1
	endi
sql show dnodes
print ----> $data00 $data01 $data02 $data03 $data04 $data05
if $rows != 1 then
  return -1
endi

print =============== step2: create alter drop show user
sql create user u1 pass 'taosdata'
sql show users
sql alter user u1 sysinfo 1
sql alter user u1 enable 1
sql alter user u1 pass 'taosdata'
sql drop user u1
sql_error alter user u2 sysinfo 0

print =============== step3: 

print =============== stop
system sh/exec.sh -n dnode1 -s stop -x SIGINT

print =============== check
print ----> start to check if there are ERRORS in vagrind log file for each dnode
system_content sh/checkValgrind.sh -n dnode1 

print cmd return result ----> [ $system_content ]
if $system_content <= 0 then
  return 0
endi 

$null=
if $system_content == $null then
  return 0
endi 

return -1