system sh/stop_dnodes.sh system sh/deploy.sh -n dnode1 -i 1 system sh/exec.sh -n dnode1 -s start sql connect sleep 3000 print ============= step1 sql create user read pass 'taosdata' sql create user write pass 'taosdata' sql show users if $rows != 5 then return -1 endi print ============= step2 sql close sql connect read sleep 2000 sql create database dread sql show databases if $rows != 1 then return -1 endi print ============= step3 sql close sql connect write sleep 2000 sql create database dwrite sql show databases if $rows != 2 then return -1 endi print ============ step4 sql close sql connect sleep 2000 sql show databases if $row != 2 then return -1 endi print ============ step5 sql close sql connect read sleep 2000 sql drop database dread sql drop database dwrite sql close sql connect sql show databases if $rows != 0 then return -1 endi sql close sql connect sleep 2000 system sh/exec.sh -n dnode1 -s stop -x SIGINT