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Port Conflict between Grid Agent and Opmn with Error:"snmehl_allocateListenerPort: failed to bind socket: Address already in use" (Doc ID 444727.1)

Last updated on OCTOBER 15, 2020

Applies to:

Oracle Fusion Middleware - Version 10.1.2.0.0 to 10.1.2.3.0 [Release AS10gR2]
Oracle Application Express (APEX) - Version 1.6 and later
Information in this document applies to any platform.

Symptoms

Oracle Express is assigned by default an opmn local port 6100 while installation.

This opmn local port 6100 is observed having many connection threads in TIME_WAIT state, opmn process takes much resources and reserves many ports as well.

The following errors can be seen when trying to start up the Grid Control Agent simultaneously with Oracle Express opmn.


While trying to start the grid agent you got the following errors:
starting agent while htmldb is up not possible:
2007-07-12 15:37:32 Thread-3086915264 ERROR http: snmehl_allocateListenerPort: failed to bind socket: Address already in use (errno=98)
2007-07-12 15:37:32 Thread-3086915264 ERROR http: nmehl_startHttpListener: failed to listen to HTTPS port for https://hostname.domain:3872/emd/main/
2007-07-12 15:37:32 Thread-3086915264 ERROR main: nmehl_startHttpListener failed starting http listener.


Cause

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In this Document
Symptoms
Cause
Solution

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