5.4. Maximum pool size
max-pool-size parameterdata source parameter defines the maximum size of the connection pool. It's more important that the
min-pool-sizeparameter because it limits the number of active connections to the data source and so the concurrent activity on the data source. If this value is set too low it's likely that the platform's hardware resources will be underutilized.
max-pool-sizetoo low is a common configuration error.