RW-50015: Error: – HTTP Listener is not responding. The service might not have started on the port yet. Please check the service and use the retry button

RW-50015: Error: – HTTP Listener is not responding. The service might not have started on the port yet. Please check the service and use the retry button (Like This Error).

Checking Application status :-

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

[applmgr@apps14 scripts]$ ./adoacorectl.sh status

Processes in Instance: PROD_apps14.apps14.com 

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

ias-component | process-type | pid | status 

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

OC4J | oafm | 21168 | Alive 

OC4J | forms | 21078 | Alive 

OC4J | oacore | 20943 | Alive 

HTTP_Server | HTTP_Server | N/A | Down 

Cause:-

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

 Due to missing library.  /usr/lib/libdb.so.2

if you got this type of error then you can take a new terminal and Down the all application services and follow below steps.

Solution:=

================================================================
* Shut all application services.

* create the below link for library file 

  root  ]# ln -s   /usr/lib/libgdbm.so.2.0.0  /usr/lib/libdb.so.2

* Startup all application services. And press the Retry button 
 

after  check the oacore status

applmgr@apps14 scripts]$ ./adoacorectl.sh status

You are running adoacorectl.sh version 120.13

Checking status of OPMN managed OACORE OC4J instance ...

Processes in Instance: PROD_apps14.apps14.com

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

ias-component                    | process-type       |     pid | status

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

OC4JGroup:default_group          | OC4J:oafm          |    4024 | Alive

OC4JGroup:default_group          | OC4J:forms         |    3946 | Alive

OC4JGroup:default_group          | OC4J:oacore        |    3858 | Alive

 HTTP_Server                             | HTTP_Server        |    3801 | Alive