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daboochmeister2's avatar
daboochmeister2
Icon for Altostratus rankAltostratus
Nov 20, 2023

HSL logging fully asycnronous? Using HSL::send via iRule - will it pause http processing of request?

Hi - we have a vendor who will be seeking to integrate an iRule which leverages HSL to send logging; the immediate destination will be an HTTP virtual server which we will establish (which will, in t...
application delivery
HSL asynchronous HSL::send
  • JRahm's avatar
    JRahm
    Nov 21, 2023

    Hi daboochmeister2, HSL is just a message sprayer; it does not wait for any application-layer responses. If using TCP instead of UDP, however, you will have transport-layer messaging in the mix, but TMM is very good at that. There will be some nominal impact to logging every request/response, partial or otherwise, but doing so in TMM with HSL is very efficient vs trying to do it via syslog.

JRahm's avatar
JRahm
Icon for Admin rankAdmin
Nov 21, 2023

Hi daboochmeister2, HSL is just a message sprayer; it does not wait for any application-layer responses. If using TCP instead of UDP, however, you will have transport-layer messaging in the mix, but TMM is very good at that. There will be some nominal impact to logging every request/response, partial or otherwise, but doing so in TMM with HSL is very efficient vs trying to do it via syslog.