That sounds like a communications problem between the Apache 
process/mod_webobjects and wotaskd.  It could be a network hiccup causing the 
socket to disconnect.  It could be a timeout not getting reported correctly.

Might be something useful here:
http://wiki.wocommunity.org/display/documentation/Troubleshooting+wotaskd+and+JavaMonitor+on+OS+X


Chuck



On 2/25/2014, 3:50 AM, "John Pollard" wrote:

Over the past few weeks we have started to notice the occasional: "The 
requested application was not found on this server."

>From experimenting, am I right in thinking this is from the apache WebObjects 
>module, because I am able to trigger this by stopping wotaskd?

Why might the WebObjects apache module not be able to find wotaskd, very 
occasionally, if this is what is happening?

The wotaskd we are running is a Wonder version from March 2013.

The deployment is on Amazon Linux. No shortage of ram on the box and running a 
fairly light load e.g. 20,000 transactions a day across 6 app instances, 
averaging about 0.05 seconds per request with many seconds idle between request.

The WO apache module used is: /usr/lib64/httpd/modules/mod_WebObjects.so
-rwxr-xr-x 1 root root  395668 Apr 28  2011 mod_WebObjects.so

Apache version:
Server version: Apache/2.2.25 (Unix)
Server built:   Jul 12 2013 01:00:05

Any pointers as to how to track down the intermittent error would be a boost!

Thanks
John
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