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Problem: Startup: Emctl Start Dbconsole Fails with Agent port missing in EMD_URL (Doc ID 266027.1)

Last updated on AUGUST 19, 2022

Applies to:

Enterprise Manager for Oracle Database - Version 10.1.0.2 to 10.1.0.6 [Release 10.1]
Information in this document applies to any platform.

Symptoms

Unable to start dbconsole

1. emctl start dbconsole fails with error:
Unable to determine local host from URL
EMD_URL=http://<HOSTNAME.DOMAIN>:/emd/main

2. emagent.nohup log shows the following errors:

  • Property 'agentTZRegion' is either missing or contains invalid value
  • emagent now exiting abnormally - initialization failure. Consult '.trc' and '.log' files
  • EMAgent exited at <time> with return value 55
  • EMAgent has exited due to initialization failure

3. emd.properties file is missing two key parameters:
a) EMD_URL should have a port
b) agentTZRegion= is missing altogether (should be the last line of the file)

4. dbca.log shows errors on reading /etc/services

5. $ORACLE_HOME/install/portlist.ini shows empty value for Enterprise Manager Agent Port

6. $ORACLE_HOME/host_sid/sysman/log contains no logs

 

Changes

 The above errors occur after the initial install of a 10g DB with database monitoring set to standalone.

Cause

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