Thanks Rob.
OS -- RHEL 6.7(Santiago) Postgres Version -- 9.5 Location --*/usr/pgsql-9.5/bin/psql* Can you please guide me , how to stop all those connection manually(From psql prompt or linux shell or any .sh file with in postgres directory) Regards, Abhra On Thu, Jan 25, 2018 at 9:36 AM, Rob Sargent <robjsarg...@gmail.com> wrote: > > > On Jan 24, 2018, at 9:57 AM, Abhra Kar <abhra....@gmail.com> wrote: > > > > > > Hi, > > I am getting the following error while running bunch of Junit > test cases through “ant test” command---- > > Caused by: com.mchange.v2.resourcepool.CannotAcquireResourceException: > A ResourcePool could not acquire a resource from its primary factory or > source. > > PFA full stack trace. > > > > After execution of 300 test cases I got this error. The setup() method > code snippet is --- > > > > @Before > > public void setUp() throws Exception { > > entityManager = entityManagerFactory. > createEntityManager();//javax.persistence.EntityManager > > entityManager.getTransaction().begin(); > > } > > > > this method ran for all 300 test cases but didn’t get error . > > > > Another 900 test cases are remaining. I tried running single test cases > from those test cases, getting same error for all. > > What is root cause of this error. > > > > Thanks and Regards, > > Abhra > > <StackTrace.doc> > Apparently Merlin is busy elsewhere. You need to name the OS, the > postgres version, and the stack you’re using. > > But my guess is you’re not closing those connections and have hit a > configuration limit for maximum connection. > > >