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Forum Discussion

Ricardo_Marinho's avatar
Ricardo_Marinho
Icon for Nimbostratus rankNimbostratus
Jan 28, 2010

HTTPRequestThrottle Issues

Hi,     We are using iRule HTTPRequestThrottle from (http://devcentral.f5.com/wiki/default.aspx/iRules/HTTPRequestThrottle.html).     Sometimes I get following errors on ltm log:...
application delivery
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devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Jan 28, 2010
Hi Ricardo,

 

 

Do the two errors always occur together?

 

 

I haven't read through the entire flow of the rule, but I would guess that the error occurs when no session table entry is found in this lookup:

 

 

Now calculate the elapsed time

 

set start_time [session lookup uie $timekey]

 

 

You could add logic between the set of start_time and the expr command to log details of the request when no session table entry exists for $timekey ($start_time eq ""). It might help to enable and inspect the log output leading up to the error.

 

 

Aaron