Two emagent-Services on a one Database system

Hello,
maybe someone can answer my question, which I am working on since several days.
I installed Oracle 10g Database and created a Database, after that I had one OEM running and accessible using the normal URL host:1158/em.
After installing Oracle HTTP-Server and Application Express there is another OEM-Service running, that I cannot access.
I had a look at the Process and Port-List and found out that one is started from the Database_Home and the other from the Http_Home.
In the Port-List there was one java.exe on Port 1158, which I can access, and another two listening on 1810 and 1850 which I am not able to access.
Furthermore there are two emagent processes shown, where one has two connections established on different ports and is listening on a third and the second process is listening on a single port.
Since both processes have there own java instance running, consuming dozens of MB virtual and RAM space, I would like to know if I really need the second emagent that I probably installed with the HTTP-Server.
And if I do not need it, how I can stop it, because there is no entry in the Windows services list to stop this service.
Kind regards
Alex

Are you sure that while installing the Application Express you did not create a new database instance? I think that windows starts one emagent for each DB instance that has been created. It might be that installing Application Express you accidentally created a new instance? Or maybe you did the DB creation process more than once without dropping the previously created instance? I remember I used to have 4 instances running, each of them with their processes and my system became very very slow.
In the Oracle_Home/install/portlist.ini there is the list of the ports used by EM and in this file are shown even the previously configured instances EMs even if those instances have been dropped - but the processes should no longer been lunched.
For each instance, in this file the EM shows 2 different ports, one is the HTTP port (in your case 1158) and the other one is the EM agent port to connect to the instance. I have the feeling that one the ports you mentioned 1810 or 1850 should be this port (mine is 1830). You will not be able to access these ports via HTTP. So having one of them in use besides the HTTP service on 1158 should be fine.
Still I think it should not be the case to have 2 EM processes running unless you have 2 instances still active. Are you sure these java.exe processes are EM processes?
Enrico

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Doc ID: 373303.1*
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