I'm trying to figure out exactly how filemaker server counts concurrent connections.

My understanding so far is that it supports:

250 TOTAL simultaneous connections:

- 250 via client

- max 100 via IWP (out of the 250 so you could have 100 iwp users and 150 client users)

- 50 xDBC connections (and i guess these 50 are substracted from the total overall connections as well? so you could have 50 odbc connections, 100 IWP and 100 client)

How are the PHP connections (via fx class or via PHP API) counted? Do they count as a single connection?

What does "simultaneous connections" mean in the context of php and how does it affect the other connections?

thanks

OK, you're close, but not exactly on target. Try these data:

Assuming FileMaker Server 9 Advanced.

250 simultaneous FileMaker client connections, of which a maximum of 50 can be ODBC/JDBC. Each xdbc decrements the total of FMP by one. So you could have 25 xdbc connections and a maximum then of 225 FMP clients.

100 simultaneous IWP connections. Each is stateful or persistent.

CWP sessions, unless they are stateful, connect and then disconnect. So they must be calculated differently. Many users can access the files in this fashion. However no more than 100 simultaneous CWP sessions, however brief they are, can occur at one time.

HTH

Steven