Forum Discussion

Algebraic_Mirror's avatar
Icon for Cirrostratus rankCirrostratus
Jun 03, 2019

Is "ACCESS::session remove" an asynchronous iRule command?

I'm having an issue with an iRule I'm writing. I'm trying to delete an access session as soon as I see a certain condition. I am using this command:   ACCESS::session remove -sid [HTTP::cookie va...
  • Algebraic_Mirror's avatar
    Jun 05, 2019

    Looks like another engineer I work with may have found the answer. The command is behaving differently than when I used it in the past (versions 12 and below) but not necessarily because it's asynchronous. It looks more likely that it's simply failing to process in a timely fashion due to this Bug ID. I am calling it in the HTTP_REQUEST event, which is outside the ACCESS events, and my version is 13, which is affected. So it looks like I meet the criteria to hit the bug.


    I've decided to try to work around this by simply deleting the user's MRHSession cookie (this is the name of APM's session cookie) during the next HTTP response, which has the effect of killing off their access to the session, while allowing them to keep browsing to unprotected areas of the site. Hopefully this information and the workaround will be of use to others who may run into this bug.



    Bug ID 697590: APM iRule ACCESS::session remove fails outside of Access events

    Known Affected Versions:

    13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,,, 14.1.0,,,,,, 15.0.0

    Opened: Dec 05, 2017

    Severity: 3-Major


    ACCESS::session remove fails


    APM iRule ACCESS::session remove fails to remove session


    iRule calling ACCESS::session remove outside of Access events.


    Use "ACCESS::session modify" and set the timeout/lifetime to something small, like 1 second. This should cause the session to be deleted due to timeout almost immediately, but note that it will show up in logs as timeout.

    Fix Information