SPDY/HTTP2 Profile Impact on Variable Use

When using SPDY/HTTP2 profile, TCL variables set before the HTTP_REQUEST event are not carried over to further events. This is by design as the current iRule/TCL implementation is not capable of hand...
Published Dec 19, 2016
Version 1.0
application delivery
devops
http2
iRules
LTM
spdy
Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP
Dec 21, 2016

Hi Jason,

how about using 

static::variables
to store those information? Should be slightly more friendly to CMP, isn't it?

when CLIENT_ACCEPTED {
    set static::(DefPool_[virtual]) [LB::server pool]
}
when HTTP_REQUEST {
    log local0. "POOL: |$static::(DefPool_[virtual])|"
}

Can you hand out some additional information how HTTP/2 request are processed by the TCP runtime environment? Are those HTTP/2 requests handled as a child stackframe 

([info level] = 3
) of the TCP connection (
[info level] = 2
)? If a child stackframe is used, can 
[uplevel]
/ 
[upvar]
be used to access the TCP connection variables?

Cheers, Kai