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cbrdy's avatar
cbrdy
Icon for Nimbostratus rankNimbostratus
Oct 02, 2013

Website shows 502: Proxy error

Hi,   We have an issue in our DR environment which we think is caused by F5 WA module.   Note: PROD and DR F5 config are completely in sync. PROD env is working very well.   Set-up: We have...
JRahm's avatar
JRahm
Icon for Admin rankAdmin
Oct 02, 2013

not sure about WA causing a 502 error, I'd suggest taking some packet captures on both sides of the BIG-IP and do some analysis on that front. Regarding the invalidation, that is done by application, and can be done from the command line in tmsh. On 11.4, that command is tmsh::modify wam application content-expiration-time now, though I think it is slightly different on earlier versions.

 

If you want to have a URL interface to invalidating cache, I wrote an article on a potential configuration using iCall, introduced in 11.4: