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  • MQTT: highwater appears not to be working properly

    From Nigel Reed@VERT to GitLab issue in main/sbbs on Thursday, April 17, 2025 18:21:40
    open https://gitlab.synchro.net/main/sbbs/-/issues/910

    ![image](https://gitlab.synchro.net/main/sbbs/uploads/105d09bc7e93fb8c8e4579a2d66266db/image.png){width=279 height=194}

    Since I obviously have terminal users, web users, mail users, I would expect highwater to be higher than 0.

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  • From Rob Swindell@VERT to GitLab note in main/sbbs on Thursday, April 17, 2025 22:43:19
    https://gitlab.synchro.net/main/sbbs/-/issues/910#note_7064

    When any server is restarted or recycle, it's "Highwater" value is republished as 0. Are you servers being recycled frequently maybe?

    If you comment-out this line from src/sbbs3/mqtt.c, does the problem go away? `mqtt_pub_uintval(mqtt, TOPIC_SERVER, "highwater", 0);`

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  • From Rob Swindell@VERT to GitLab note in main/sbbs on Thursday, April 17, 2025 22:43:45
    https://gitlab.synchro.net/main/sbbs/-/issues/910#note_7064

    When any server is restarted or recycled, its "highwater" value is republished as 0. Are your servers being recycled frequently maybe?

    If you comment-out this line from src/sbbs3/mqtt.c, does the problem go away? `mqtt_pub_uintval(mqtt, TOPIC_SERVER, "highwater", 0);`

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  • From Nigel Reed@VERT to GitLab note in main/sbbs on Friday, April 18, 2025 01:58:24
    https://gitlab.synchro.net/main/sbbs/-/issues/910#note_7065

    The BBS last recycled on 17th according to the logs.

    ![image](/uploads/5e16f0c303896b5826ab5fe58464b382/image.png){width=279 height=144}

    Right now, I have 4 web users, so the highwatermark should be at least 4, and I'm logged in the terminal so that should be at least 1.

    I'll try the suggested line tomorrow since it's getting late.

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  • From Nigel Reed@VERT to GitLab note in main/sbbs on Friday, April 18, 2025 01:59:16
    https://gitlab.synchro.net/main/sbbs/-/issues/910#note_7066

    FWIW, It seems to be keeping the Services highwatermark OK. I have that as 12. Also 0 for ftp but that could be right since nobody uses it much these days. More testing tomorrow.

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  • From Rob Swindell@VERT to GitLab note in main/sbbs on Friday, April 18, 2025 12:02:18
    https://gitlab.synchro.net/main/sbbs/-/issues/910#note_7068

    I see the issue and it does appear related to recycling. A fresh start/restart of the process and everything's fine. It's after a server recycle that that the mqtt published highwater can be "stuck" at 0.

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  • From Rob Swindell@VERT to GitLab issue in main/sbbs on Friday, April 18, 2025 12:30:33
    close https://gitlab.synchro.net/main/sbbs/-/issues/910

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