O3L 2.1.1 - Error "AH00558: httpd: Could not reliably determine the server's fully qualified domain name"
(Doc ID 2159239.1)
Last updated on AUGUST 20, 2018
Applies to:
Oracle OpenStack for Oracle Linux - Version OpenStack 2.1.1 to OpenStack 2.1.1 [Release ODOS2]Information in this document applies to any platform.
Symptoms
After a fresh deployment of O3L 2.1.1, below error messages were captured in horizon logs:
[root@o3l-control2 ~]# docker logs horizon
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using o3l-control2.in.oracle.com. Set the 'ServerName' directive globally to suppress this message
[Fri Jul 08 22:45:35.811403 2016] [:error] [pid 16] Recoverable error: Unknown Error (HTTP 504)
[Fri Jul 08 22:45:38.291257 2016] [:error] [pid 16] Recoverable error: <html><body><h1>503 Service Unavailable</h1>
[Fri Jul 08 22:45:38.291369 2016] [:error] [pid 16] No server is available to handle this request.
[Fri Jul 08 22:45:38.291375 2016] [:error] [pid 16] </body></html>
[Fri Jul 08 22:45:38.291379 2016] [:error] [pid 16]
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using o3l-control2.in.oracle.com. Set the 'ServerName' directive globally to suppress this message
[Fri Jul 08 22:45:35.811403 2016] [:error] [pid 16] Recoverable error: Unknown Error (HTTP 504)
[Fri Jul 08 22:45:38.291257 2016] [:error] [pid 16] Recoverable error: <html><body><h1>503 Service Unavailable</h1>
[Fri Jul 08 22:45:38.291369 2016] [:error] [pid 16] No server is available to handle this request.
[Fri Jul 08 22:45:38.291375 2016] [:error] [pid 16] </body></html>
[Fri Jul 08 22:45:38.291379 2016] [:error] [pid 16]
Cause
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