High Memory Consumed by httpd.exe When Max Allowed Websocket Connections is Reached

(Doc ID 2290846.1)

Last updated on JULY 28, 2017

Applies to:

Oracle HTTP Server - Version 12.1.3.0.0 and later
Information in this document applies to any platform.

Symptoms

While using Oracle HTTP Server 12.1.3, httpd.exe consumes high memory when it reaches max allowed websocket connections (WLMaxWebSocketClients)

It continues to grow as long as a client is trying to reconnect and eventually the machine runs out of memory.

In the windows event viewer we can see this message:

In the task manager also we can see httpd.exe consuming high memory.

 

Steps to Reproduce:

1. Install weblogic 12.1.3

2. Install Oracle HTTP Server 12.1.3

3. Deploy WebSocket application

4. Configure mod_wl_ohs to access websocket application through Oracle HTTP Server

5. In mod_wl_ohs.conf set "WLMaxWebSocketClients 4" for testing

6. Run the client code and check whether memory usage for httpd.exe

In the Windows even viewe we can see the below message:



Changes

 

Cause

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