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Forum Discussion

goldi_247196's avatar
goldi_247196
Icon for Nimbostratus rankNimbostratus
Jun 21, 2016

F5 iRule for UIE - latency on using the persist uie command

we are trying to introduce to our service the F5 load balancer and in order to do that we are developing an iRule that persist session with the universal persistence feature. but when trying to persi...
application delivery
BIG-IP
iRules
Yann_Desmarest's avatar
Yann_Desmarest
Icon for Cirrus rankCirrus
Jun 21, 2016

Hi,

 

You have several part that can cause latency : regexp, http payload collection, string manipulation.

 

You can try disabling each one at the time to check which part of your irule can cause latency.

 

Try removing the HTTP::collect and HTTP_RESPONSE_DATA to start. I think that it may be your issue.

 

Yann_Desmarest's avatar
Yann_Desmarest
Icon for Cirrus rankCirrus
Jun 21, 2016
I never had see any latency on universal persistence. But basically, I assume that extra long string used as persistence records along with big connection table may impact performance.