RSS feeder with same timestamps causes random sorts

  • Affected App
    WoltLab Suite Forum

    Thought this was fixed, still happening in testing, just had 4 posts from RSS, same timestamp, and refresh sorts them randomly.


    Tom

  • Tim,


    Thanks! It looks like it fixed the thread view, but it still happens on the hot threads widget, if you refresh it changes the order of the items listed on that widget.


    Tom

    Edited once, last by tjk ().

  • Tim, why would it change on a forum with zero activity on it though?


    I literally just have a forum, with me only, and an rss reader, that posts maybe 4 or 5 messages once a day.


    That refresh order should not change for hot threads when nothing is happening on the forums.

    • Official Post

    Hi

    Tim, why would it change on a forum with zero activity on it though?

    hits are included in the calculation as well. While it might be possible that two threads will have the same score the chance of this happening is really small in a real forum (one second difference or one hit more or less and the score will change). The box is already pretty slow, sorting by more columns will bring next to zero benefit for a possible decrease in performance.

    That refresh order should not change for hot threads when nothing is happening on the forums.

    It should! Maybe not in your specific case (see explanation above), but: The "temperature" is calculate as the quotient between the hits and replies and a power of the age of the topic. Because of this non linear denominator newer threads will relatively lose temperature faster than older threads. The less mathematical reasoning behind this is, that older threads with sustained hits and replies are probably more interesting than newer threads that quickly gained attention for a very short time span, therefore newer threads will cool down faster.

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