Unable To Establish Connection To Web Cache From F5 Big IP Loadbalancer
(Doc ID 422091.1)
Last updated on MARCH 01, 2023
Applies to:
Web Cache - Version 9.0.4 to 10.1.2.2 [Release AS10g to AS10gR2]Information in this document applies to any platform.
This problem can occur on any platform.
Symptoms
Third-party hardware loadbalancer - F5 Big IP is unable to reach Oracle WebCache.
Oracle WebCache may become intermittently unreachable from browser, which can be confirmed by accessing the below URL from a browser:
http://<fully_qualified_hostname>:<webcache_listen_port>
The Big IP console shows Oracle WebCache as down and the following errors are seen in Oracle WebCache event_log:
[error 12417] [ecid: <ECID>] HTTP request-header parsing error - no header name. Client IP: <f5_IP_Address>
[error 12419] [ecid: <ECID>] Dump of offending HTTP request-header line: GET /
Cause
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In this Document
| Symptoms |
| Cause |
| Solution |
| References |