emctl start oms Failed with 'Connection to the repository failed' and EMGC_OMS1.out File Reports 'Invalid Connection Pool. ERROR = ORA-02391: exceeded simultaneous SESSIONS_PER_USER limit'

(Doc ID 2075517.1)

Last updated on NOVEMBER 25, 2015

Applies to:

Enterprise Manager Base Platform - Version 12.1.0.5.0 and later
Information in this document applies to any platform.

Symptoms

OMS fails to start with the following error:

$<OMS_HOME>/bin>./emctl start oms

Starting Oracle Management Server...
Starting WebTier...
WebTier Successfully Started
Oracle Management Server is not functioning because of the following reason:
Connection to the repository failed. Verify that the repository connection information provided is correct.
Check EM Server log file for details: /oem/12c/12.1.0.5/gc_inst/user_projects/domains/GCDomain/servers/EMGC_OMS1/logs/EMGC_OMS1.out

$EM_INSTANCE_BASE/gc_inst/user_projects/domains/GCDomain/servers/EMGC_OMS1/logs/EMGC_OMS1.out file reports following errors:

Fetched repository credentials from Credential Store
Invalid Connection Pool. ERROR = ORA-02391: exceeded simultaneous SESSIONS_PER_USER limit

Cause

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