refresh persistence for long-lived connections

We have long-lived connections that we need to re-route to the same server if they reconnect within a 10 minute window. Example irule:

when CLIENT_ACCEPTED {

set persistkey ""

TCP::collect 1

}

when CLIENT_DATA {

if { [regexp "(\x01)56=(\[^\x01\]+)\x01" [TCP::payload] match d source] } {

set persistkey $source

take the route if it exists

create a temporary persistence record that expires quickly

persist uie $persistkey 10

}

}

when SERVER_CLOSED {

if { $persistkey != "" } {

(re)create the persistence record

persist uie $persistkey 600

}

}

This doesn't work as the persistent entry is not (re)created on SERVER_CLOSED

Another way of asking the question: Is there a way to refresh persistence records throughout the life of a TCP socket rather than just at the beginning?

Testing seems to reveal that the only non-HTTP event "persist add uie" actually creates records in is LB_SELECTED

Is there a way to create the persistence record at the end of the connection rather than the beginning?