"oracle.ons.SubscriptionException Subscription request timed out" When Accessing Oracle Application Server Control
(Doc ID 1075347.1)
Last updated on AUGUST 10, 2020
Applies to:Oracle Fusion Middleware - Version 10.1.2.0.0 to 10.1.2.3.0 [Release AS10gR2]
Information in this document applies to any platform.
After starting Oracle Application Server Control (ASC) using "emctl start iasconsole", accessing ASC using http://hostname:1156/emd/console/ias/clusters/farm$farm=infra.hostname fails with following error in the browser page:
1. TaskMaster cannot read configuration files, such as $ORACLE_HOME/opmn/conf/opmn.xml, and $ORACLE_HOME/dcm/dcm.conf, etc.
2. Cannot connect to the repository.
1. Make sure that the system configuration files are present and the permission for those files are set correctly.
2. If you are using Infrastructure Database, please make sure that the database is up and running, and the listener for the database is running. Also check the connectivity of the machine to the Database Repository. Please refer to the exception thrown by the Repository API for resolution. The Repository API may be misconfigured.
Subscription request timed out after 120000 millseconds. Possible causes: OPMN may not be running, you may have an OPMN running in an alternate ORACLE_HOME using duplicate port values, or OPMN may be misconfigured.. Subscription request timed out after 120000 millseconds. Possible causes: OPMN may not be running, you may have an OPMN running in an alternate ORACLE_HOME using duplicate port
$ORACLE_HOME/opmn/logs/ons.log contain following entries:
10/03/16 11:30:24  Local connection 0,127.0.0.1,6101 invalid form factor
10/03/16 11:30:27  Local connection 0,127.0.0.1,6101 invalid form factor
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