Forum Discussion

chester_16314's avatar
chester_16314
Icon for Nimbostratus rankNimbostratus
Sep 08, 2011

Log unique Client Addresses per (Hour|Day|Etc)

I have an iRule to log client GEO Location data. However, I don't want to log every single client accepted or http request out. Maybe I'm silly, but that seems like a lot of extra thrashing when all...
application delivery
dev
devops
iRules
hooleylist's avatar
hooleylist
Icon for Cirrostratus rankCirrostratus
Sep 08, 2011
If this is just for reporting, I'd consider using High Speed Logging to send a log message to a remote pool of syslog servers for every request and/or response. The CPU/memory/I/O overhead for HSL is quite low compared with using a subtable and logging locally. In informal testing on an 8900 I saw up to 200k TCP or UDP messages of 1000 bytes sent with ~10% CPU increase and nearly no additional memory usage. The additional CPU was much lower at lower message levels.

 

 

As Hamish pointed out in a recent thread here, it would be good to upgrade to the latest 10.2.x release when using HSL as there have been some bugs fixed in this version.

 

 

Aaron

 

Aaron