Salam alikom
I have a middlewar that connect to oracle DB,
It was works very well, but I noticed that an error appear in some times but not always, this error is
IO exception: Network adapter couldn't establish connection
I try to change the host name from the IP of the sever to this word "Localhost"
but this problem didn't solved
I try also to see the listener.ora file & add the trace statement but no change
the problem solved only when I resarted the server, but this is not good solution
so please, are there any one who can guide me to solve this problem
I'll be very thankfull for you
Moaaz

ماهو رقم الخطأ؟