showcls is a tool that analyses the client queue semaphore of a database. It is called with the following syntax:

showcls <dbid>

showcls displays the status of each client queue element of the database:

Status	Meaning
Free	The client queue entry can be used for a new client connection.
Obsolete	The client queue entry can be reused after the next client queue cleanup.
In use	The client queue entry is currently in use.