My Oracle Support Banner

Unable To Establish Connection To Web Cache From F5 Big IP Loadbalancer (Doc ID 422091.1)

Last updated on JULY 27, 2018

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: 95667433177,0] HTTP request-header parsing error - no header name. Client IP: <f5_IP_Address>
[error 12419] [ecid: 95667433177,0] Dump of offending HTTP request-header line: GET /

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


In this Document
Symptoms
Cause
Solution
References


This document is being delivered to you via Oracle Support's Rapid Visibility (RaV) process and therefore has not been subject to an independent technical review.
My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.