比如我在Site Config中设置WAIT_BEFORE_DISCONNECT=30,分钟
(WAIT_BEFORE_DISCONNECT在QC帮助中的说明:The time interval in minutes that the Quality Center client can be inactive before it is disconnected from the Quality Center server. Disconnecting the client enables the license to be used by another Quality Center user. By default, the value is set to 600 minutes. Note that if you set the value to -1, Quality Center will not disconnect, regardless of how long the client is inactive.)