Intermittent HTTP-400 Bad Request "The webpage cannot be found" or "Failure of server APACHE bridge" When Accessing Applications Using mod_wl_ohs (Doc ID 1934491.1)

Last updated on APRIL 09, 2018

Applies to:

Oracle HTTP Server - Version 11.1.1.0.0 to 12.1.3.0.0 [Release Oracle11g to 12c]
Information in this document applies to any platform.

When accessing any applications via Oracle HTTP Server (OHS) using mod_wl_ohs for application request routing, users intermittently experience errors:

HTTP-400 Bad Request "The webpage cannot be found" or "Failure of server APACHE bridge".

The error can occur for multiple different page requests for different back end managed servers.
There are no errors recorded in the OHS log when the problem occurs.
The back end managed server access logs show no record of the request being received from OHS.
If mod_wl_ohs debug logging is enabled errors similar to the following will be observed in the plugin debug log file (for example weblogic.log)

Error 30 in opening temp request body file '/tmp/_wl_proxy/_post_10961_0'

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