To prevent too many queued executions from overwhelming a Domino deployment, limit the number of execution slots that can be queued globally or per user.
To do this, use the com.cerebro.domino.computegrid.userExecutionsQuota.globalExecutionQueueLimit or com.cerebro.domino.computegrid.userExecutionsQuota.userExecutionQueueLimit configuration parameter. See Central Configuration for details.
Once a queue limit is reached, additional executions are rejected with a failure status. The count includes executions for Domino workspaces, jobs, web applications, and any executions that make up an on-demand distributed compute cluster. For example, an on-demand Spark cluster consumes an execution slot for the master and each Spark executor.