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D
dongzky
Inspiring
May 20, 2009
Question

SESSION.CFID unique?

  • May 20, 2009
  • 2 replies
  • 851 views

Hi All,

I am not too sure about this. But is SESSION.CFID a unique value? Or is it possible that the value of today's session will be the same value generated in future sessions?

    This topic has been closed for replies.

    2 replies

    T
    TLC-IT
    Inspiring
    May 20, 2009

    It appears to me, from http://livedocs.adobe.com/coldfusion/8/htmldocs/help.html?content=sharedVars_13.html that the most appropriate strategy would be to use Session.SessionID.  It seems to me, based upon this reading, that "the designer's intent" was that this would be a unique-identifier string that will reliably work in all cases, i.e. whether Session or J2EE persistence methods are used.

    M
    mack_
    Participating Frequently
    May 20, 2009

    CFID and CFTOKEN are used together to uniquely identify the user.

    However CFID's are sequential so I can see a scenario where 2 sessions

    will have the same CFID: if the last value of the CFID is not saved

    properly (for example following a CF server crash) new clients will

    reuse some of the CFID's. The actual chances of this happening are

    pretty slim though.

    Mack

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