thanks for mentioning rand, I didn't know about it... With some rand()s I was 
able to generate a UUID, I'll have to do some performance checks, but I think 
it will be fair enough. Then we don't need a %uuid or similar from my point of 


On 03.09.19, 10:34, "li...@ltri.eu on behalf of Lukas Tribus" <li...@ltri.eu> 

    Hello Luca,
    On Tue, 3 Sep 2019 at 09:18, Schimweg, Luca <luca.schim...@sap.com> wrote:
    > Hey,
    > for one use case I have, I would need a variable like %uuid in 
    > which just generates a random UUID. The use-case would be, to be able
    > to set the unique-id-format to this uuid, so that we can have a random 
    > set as request-id for any incoming request. Right now, it’s quite 
difficult to
    > get a random and unique request-id, the random uuid approach would
    > definitely help with that.
    I assume the rand [1] does not suffice. In this case, I'd suggest to
    use LUA for this, maybe by using some library like lua-resty-jit-uuid
    [1] https://cbonte.github.io/haproxy-dconv/1.9/configuration.html#7.3.2-rand
    [2] https://github.com/thibaultcha/lua-resty-jit-uuid

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