Configuring HTTP Apache Server with Oracle Apex

Question

Hi All,
I have trawled through various threads on here to see if it would help my resolve the problem i seem to be having, but to no avail :(
I have an oracle RAC db with apex installed. the RAC uses a service: apextest.com
I have an HTTP Server installed on a seperate server, I have copied the Images over so it knows what to use. Made sure the httpd.conf file is pointing to the correct images path.
As its a RAC db, i have put in the dads.conf file a 'TNSFormat' setting for the 'PlsqlDatabaseConnectString', using the TNSnames.ora entry named DEXTER which uses the apextest.com service name.
My dads.conf file:
Alias /i/ "/apex/Apache/Apache/images/"
AddType text/xml       xbl
AddType text/x-component       htc
<Location /pls/apex>
Order deny,allow
PlsqlDocumentPath docs
AllowOverride None
PlsqlDocumentProcedure         wwv_flow_file_mgr.process_download
PlsqlDatabaseConnectString     DEXTER TNSFormat
PlsqlNLSLanguage               AMERICAN_AMERICA.AL32UTF8
PlsqlAuthenticationMode        Basic
SetHandler                     pls_handler
PlsqlDocumentTablename         wwv_flow_file_objects$
PlsqlDatabaseUsername          APEX_PUBLIC_USER
PlsqlDefaultPage               apex
PlsqlDatabasePassword          apex_pword
PlsqlRequestValidationFunction wwv_flow_epg_include_modules.authorize
Allow from all
</Location>My TNSnames Entry:
DEXTER =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = servername.com)(PORT = 1521))
    (ADDRESS = (PROTOCOL = TCP)(HOST = servername2.com)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = apextest.com)
  )i can tnsping using the apex_public_user account and correct password and also sqlplus using the same account and password:
tnsping DEXTER
sqlplus apex_public_user/apex_pword@DEXTERim getting the error of:
Service Temporarily Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.
The error log is spitting out -
mod_plsql: /pls/apex/apex HTTP-503 ORA-12514Does anyone have any ideas? Anything i've missed out / not done ?
Note: I have used the same HTTP Apache Server to host a version of apex4 on a standalone database which is installed on the same server. So just wondered if that has anything to do with it?
thanks in advance :)

Answer 1

Hello,
According to the error ORA-12514, there is a problem for the mod_plsql to connect to the database :
ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
Cause: The listener received a request to establish a connection to a database or other service. The connect descriptor received by the listener specified a service name for a service (usually a database service) that either has not yet dynamically registered with the listener or has not been statically configured for the listener. This may be a temporary condition such as after the listener has started, but before the database instance has registered with the listener.
Action:
- Wait a moment and try to connect a second time.
- Check which services are currently known by the listener by executing: lsnrctl services <listener name>
- Check that the SERVICE_NAME parameter in the connect descriptor of the net service name used specifies a service known by the listener.
- If an easy connect naming connect identifier was used, check that the service name specified is a service known by the listener.
- Check for an event in the listener.log file.
Is the "alias" DEXTER defined in the file tnsnames.ora used by mod_plsql ?
Regards