how to modify the _sys_https_redirect to exempt a specific uri and use a specific pool or node for that uri?

Please try below irule and confirm if it works!

when HTTP_REQUEST {
if { ([HTTP::uri] contains "directory/directory") } 
{ 
pool pool-A 
} 
else 
{ HTTP::redirect https://[getfield [HTTP::host] ":" 1][HTTP::uri] }
}
 

 NOTE- I have kept redirect statement as it is.