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  • Jules 269 posts 560 karma points
    May 09, 2023 @ 07:22
    Jules
    0

    uSync Complete - very long signalr connections

    uSync.Complete
    Umbraco 8

    Hi Kevin

    Our infra team have quizzed me about signalr calls as below that in some cases has lasted up to 6 hours.

    /umbraco/BackOffice/signalr/connect?transport=ServerSentEvents&clientProtocol=2.1connectionToken=xxx&connectionData=%5B{}"name"%3A"usynchub}%5D&tid=8

    Any idea why these connections would stay open for so long?

    Regards

    Jules

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  • Kevin Jump 2311 posts 14697 karma points MVP 7x c-trib
    May 09, 2023 @ 08:41
    Kevin Jump
    0

    Hi Jules,

    The connection will stay open if someone's browser is open with the dashboard, - The nature of SignalR is that its' a web socket connection, So it will remain open while your browser is active on the backoffice (i think).

    Its a little odd because for me during testing its usually the other way around and it closes after a while being idle, when i want to check something

    in terms of uSync the signalR connection is only used for informational purposes (to show progress when you import/export). if the connection actually fails the whole thing still works, and no 'commands' can be sent via the SignalR hub that uSync uses that will send anything out.

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