connection pooling with MonetDB, R and Shiny Pro

Question

With R and Shiny Pro it is possible to implement multi-user analytical applications.

When a database is used to store intermediate data, how to give access to multiple user access to the db becomes very relevant and necessary.

Currently I'm using MonetDB / MonetDB.R configured (as usual for R) as a single user access, which means that any user operation occurs in sequence.

I would like to implement some type of connection pooling with the DB.

From past SO responses the driver does not include connection pooling.

Are there alternatives within these toolsets?

Answer 1

I am not aware of any connection pool implemented for R DBI connections. The setup you describe seems rather special. You could just create a connection for every client session. MonetDB limits the amount of concurrent connections however, to increase this limit, you could set max_clients to a higher value, for example by starting mserver5 with --set max_clients=1000 or (if you use monetdbd ), monetdb set nclients=1000 somedb . Of course, DBI connection pooling would also be a feature request for Shiny Pro and not for MonetDB.R .