Michael, Increasing the maximum connection did not help, but using Cayenne for something else beforehand solved the problem. I do not understand the logic behind it, but it seems AggregateUtils fails if it is CayenneRuntime's first customer.
Problem sorted and the utility provides me the functionality I wanted. thank you, nobu On 15 July 2016 at 18:36, Michael Gentry <[email protected]> wrote: > Hi Nobu, > > Try increasing your maximum connections. > > mrg > > > On Fri, Jul 15, 2016 at 1:26 PM, Harunobu Oyama <[email protected]> wrote: > > > Michael, > > > > The min connection and max connection are both 1 as default. > > > > nobu > > > > > > On 15 July 2016 at 18:16, Michael Gentry <[email protected]> wrote: > > > > > On Fri, Jul 15, 2016 at 12:39 PM, Harunobu Oyama <[email protected]> > wrote: > > > > > > > Caused by: java.sql.SQLException: Can't obtain connection. Request > > timed > > > > out. Total used connections: 1 > > > > at > > > > > > > > > > > > > > org.apache.cayenne.conn.PoolManager.uncheckPooledConnection(PoolManager.java:454) > > > > at > > > org.apache.cayenne.conn.PoolManager.getConnection(PoolManager.java:382) > > > > at > > > org.apache.cayenne.conn.PoolManager.getConnection(PoolManager.java:371) > > > > at > > > > > > > > > > > > > > org.apache.cayenne.configuration.server.DefaultDbAdapterFactory.detectAdapter(DefaultDbAdapterFactory.java:97) > > > > ... 15 more > > > > > > > > > Hi Nobu, > > > > > > Given this part of the exception, it seems it was unable to get a > > > connection to the database. How is your connection pool configured? > Do > > > you only have one connection? > > > > > > mrg > > > > > >
