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Uneven Load Distribution to Backend Servers by Oracle HTTP Server Mod_wl_ohs 11g (Doc ID 2879883.1)

Last updated on JUNE 28, 2022

Applies to:

Oracle HTTP Server - Version 11.1.1.7.0 to 11.1.1.9.0 [Release Oracle11g]
Information in this document applies to any platform.

Symptoms

Oracle HTTP Server(OHS) mod_wl_ohs proxy plugin configured with 2 backend servers.  Observed more requests are forwarded to one of the servers.
This can be confirmed by two ways:
  a. Count the backend WLS server access.log entries received from OHS for a period of time
  b. On OHS server host, 'netstat -an | grep ESTABLISHED'  command shows more established connection to one WLS server

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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