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1.double click at a database node on navigator tree or right click at a database node then select "Show Database Dashboard"
2.check whether display the database dashboard
3.right click at a broker data ,select "Restart CAS" then check whether the cas had been start
4.right click at a broker data , select "Show SQL/Slow Query Log" then check whether open the log editor view
5.right click at a lock and transaction data then select "Kill transaction".check whether the tansaction had been killed