How large is the surge queue in ScaleArc?
SQL queries are not pipelined, so an outstanding query on a SQL connection does not hold back the next query on that same connection. ScaleArc's surge queue is as deep as the number of concurrent connections the app servers can keep open. ScaleArc supports up to 60,000 concurrent connections per ScaleArc cluster or endpoint. The surge queue can be as deep as 60,000 for each ScalerArc cluster. It is extremely rare for the ScaleArc surge queue to be full given the very high capacity per ScaleArc cluster – if the queue does fill, new client connections will be timed out.