Unable to Connect to APEX: ORA-12537
Last updated on JANUARY 19, 2018
Applies to:Oracle REST Data Services - Version 1.1.0 and later
Oracle Application Express (APEX) - Version 1.5 and later
Information in this document applies to any platform.
APEX has been installed and configured according to the instructions in the HTML DB / Application Express installation guide, and has been configured with an HTTP Server or with Oracle REST Data Services (ORDS).
When running the URL http://servername:7777/pls/apex, a "Page cannot be displayed" error occurs.
A review of the error_log shows the following:
[Tue Jan 30 14:47:43 2007] [warn] [client 126.96.36.199] mod_plsql: Long running URL [/pls/apex/apex] timed out
[Tue Jan 30 14:47:43 2007] [error] [client 188.8.131.52] [ecid: 1170186161:184.108.40.206:6137:0:49,0] mod_plsql: /pls/apex/apex HTTP-503 ORA-12537
[Tue Jan 30 14:50:57 2007] [warn] [client 220.127.116.11] mod_plsql: Long running URL [/pls/apex/apex] timed out
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