opmnctl: opmn is not running and failed to start a managed process after the maximum retry limit

In this post describe how to resolve the opmnctl opmn  failed to start  a managed process after the maximum retry limit issue.

Scenario:

Recently we have got error ‘Failed to start managed process after the  maximum retry limit’ because  copied IAS from different machine and  try to start the opmn service as below.

Error : oracle opmn start failed . We can check the opmn logs to check  opmn is not running

======

[oracle@appsprd ~]$ opmnctl startall

opmnctl: starting opmn and all managed processes...

opmn id=doyen.com:6299

0 of 1 processes started.

ias-instance id=standalone

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

ias-component/process-type/process-set:

HTTP_Server/HTTP_Server/HTTP_Server

Error:

--> Process (pid=10533)

failed to start a managed process after the maximum retry limit

Log:

/data01/apex/prd/opmn/logs/HTTP_Server~1

Solution:

[oracle@appsprd ~]$ su – root

Password:

[root@appsprd oracle]# ln -s /usr/lib/libgdbm.so.2.0.0 /usr/lib/libdb.so.2

Now Retest the issue : In my case issue got resolved.

=====================

[oracle@appsprd ~]$ opmnctl startall

opmnctl: starting opmn and all managed processes...

[oracle@appsprd ~]$ ./opmnctl status

Processes in Instance: apex_home. appsprd.com

-------------------+--------------------+---------+---------

ias-component      | process-type       |     pid | status

-------------------+--------------------+---------+---------

DSA                    | DSA                           |     N/A | Down

LogLoader          | logloaderd                 |     N/A | Down

dcm-daemon      | dcm-daemon             |     N/A | Down OC4J                  | home                          |    5678 | Alive HTTP_Server    | HTTP_Server            |    5677 | Alive