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khoutman_235081's avatar
khoutman_235081
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Dec 07, 2015

Issues with pool redirect

We're trying to move a website from on prem to a cloud provider 1 page at a time and decided that trying to do everything on the F5 would be the best way to do it. So I setup a test environment with a pool redirect through irules for the first page we want to move (page /abc)-

when HTTP_REQUEST {
if { [string tolower [HTTP::path]] starts_with "/abc" }{
pool pool_cloud}}

The pool redirect works great, the problem we're running in to now is when a user goes to http://mywebsite.com/abc and then back to http://mywebsite.com it keeps trying to load the main page in the cloud which isn't ready yet and not the original on-prem page even though DNS points at the on-prem page.

I don't know if there's some sort of caching that's causing this or a setting on F5 that could help.

application delivery
BIG-IP

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  • khoutman_235081's avatar
    khoutman_235081
    Icon for Nimbostratus rankNimbostratus
    Dec 07, 2015

    FYI we updated the irule to below and in testing it looks good so far. We're still doing some more tests but hopefully this solved our issue-

    when CLIENT_ACCEPTED {
   set default_pool [LB::server pool]
}
when HTTP_REQUEST {
    if { [string tolower [HTTP::path]] starts_with "/abc" }{
    pool pool_cloud
  }
    else {
    pool $default_pool
  }
}