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caulfiedd_spurr's avatar
caulfiedd_spurr
Icon for Cirrus rankCirrus
Apr 13, 2020

how many concurrency rest api request LTM,GTM can support

how many concurrency  rest api request LTM,GTM can support . I want to user a script to retrieve all the pool (name, member , monitor) configuration . or if there is a url that can retrieve all t...
concurrency
devops
iControlREST
LTM
  • Dario_Garrido's avatar
    Dario_Garrido
    Apr 14, 2020

    Another approach would be start without limits and check if your REST queries are being degraded (slow time of response because they are being queued, no response at all because you have reached iControlREST protection limit). It's up to you.

     

    In production traffic I would rather the previous option.

     

    If this has been helpful, please don't forget to mark the question as 'the best' of give some upvotes.

     

    KR,

    Dario.

Dario_Garrido's avatar
Dario_Garrido
Icon for MVP rankMVP

Hello caulfiedd spurred.

 

It's impossible to respond to this question precisely.

 

F5 uses iControl Rest Daemon (icrd) process to manage those queries, which runs on the controlplane cores (in case you have hyperthreding enabled).

REF - https://support.f5.com/csp/article/K15003

 

The numbers of queries depends on the status of your controlplane resources. That means that "more alleviated resources" are equally to "more REST queries" (and less time in queues).

 

F5 also has a protection system that allows its to protect CPU/memory resources when too many REST queries are receiving.

REF - https://support.f5.com/csp/article/K22255547

 

So, my recommendation is to start sending queries gradually and monitor the CPU status.

 

KR,

Dario.

 

caulfiedd_spurr's avatar
caulfiedd_spurr
Icon for Cirrus rankCirrus
Apr 14, 2020

thanks for your reply , I will try to find another way .

  • Dario_Garrido's avatar
    Dario_Garrido
    Icon for MVP rankMVP
    Apr 14, 2020

    Another approach would be start without limits and check if your REST queries are being degraded (slow time of response because they are being queued, no response at all because you have reached iControlREST protection limit). It's up to you.

     

    In production traffic I would rather the previous option.

     

    If this has been helpful, please don't forget to mark the question as 'the best' of give some upvotes.

     

    KR,

    Dario.