Add the following JacORB  properties to java command line or update in jacorb.properties file

To enable general debug logs add the below line

 -Djacorb.log.default.verbosity=4

To enable notification debug logs add the below line

 -Dorg.jacorb.notification.log.verbosity=4

To increase POA Queue. Increase this parameter, for connecting with many EMSs or for many parallel requests. Default value is 100

 -Djacorb.poa.queue_max=100

thread pool configuration for request processing

 -Djacorb.poa.thread_pool_max=100
 -Djacorb.poa.thread_pool_min=20