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Multi-System Reactor

[Solved]Global Expression with null value and Auto-Evaluation

Scheduled Pinned Locked Moved Multi-System Reactor
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  • toggledbitsT Offline
    toggledbitsT Offline
    toggledbits
    wrote on last edited by toggledbits
    #7

    Can you post all the expressions as you have them now? That's a pretty unusual error message. There's a distinction between evaluation and compilation, and I'm very meticulous about making sure the message reports the right one. The alert shows that the compilation is the problem, which suggests the expression isn't written properly somehow. I need to see what you've got.

    Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

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    • wmarcolinW wmarcolin

      @vezinpi

      In the engine group config (reacotr.yaml), add this parameter:

      update_rate_limit: 300

      This solved my problem and did not harm the system at all.

      Thanks.

      toggledbitsT Offline
      toggledbitsT Offline
      toggledbits
      wrote on last edited by toggledbits
      #8

      @wmarcolin update_rate_limit has no effect on global variable evaluation, FYI. That's a control/config for rule evaluations. Global variables have no equivalent config value, it's really not needed. I think there's (a) a problem with the expression that's causing a compilation error, and (b) a problem handling the compilation error that's causing the loop/stack overflow. Once (b) is fixed we'll be back to "no rate limiting needed here" status.

      Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

      wmarcolinW 1 Reply Last reply
      1
      • toggledbitsT toggledbits

        @wmarcolin update_rate_limit has no effect on global variable evaluation, FYI. That's a control/config for rule evaluations. Global variables have no equivalent config value, it's really not needed. I think there's (a) a problem with the expression that's causing a compilation error, and (b) a problem handling the compilation error that's causing the loop/stack overflow. Once (b) is fixed we'll be back to "no rate limiting needed here" status.

        wmarcolinW Offline
        wmarcolinW Offline
        wmarcolin
        wrote on last edited by
        #9

        @toggledbits ok, understood!
        Thanks.

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        • V Offline
          V Offline
          vezinpi
          wrote on last edited by vezinpi
          #10

          Here it is, as requested. Getting the logs, standby...

          523ba299-471f-4675-9a8f-de76622065cf-image.png

          Using MSR 25139 on Docker, on a Raspberry Pi with Bookworm. Home Assistant 2025.07, Z-Wave JS-UI 10.6.1

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          • V Offline
            V Offline
            vezinpi
            wrote on last edited by vezinpi
            #11

            MSR Logs. It is quite long with the middle repeating OutsideTemp so I copied the start and the end. After that it repeats. I did preserved the logs so if you want more let me know.

            This is how (I think) it started

            GlobalExpression#CurrentHumid
            [latest-22002]2022-01-04T17:33:01.558Z Rule:5:813:Rule.js Rule#rule-grpqosf66u Humidifier On requesting eval; expression-state-changed from GlobalExpression#CurrentHumid
            [latest-22002]2022-01-04T17:33:01.559Z Rule:5:813:Rule.js Rule#rule-grpqoyiumi Humidifier Off requesting eval; expression-state-changed from GlobalExpression#CurrentHumid
            [latest-22002]2022-01-04T17:33:01.560Z Rule:5:813:Rule.js Rule#rule-kwz0myt1 Low Humidity To Hass requesting eval; data-changed from Data#states:expr-global-CurrentHumid
            [latest-22002]2022-01-04T17:33:01.561Z Rule:5:1009:Rule.js Rule#rule-kwz0myt1 evaluation in progress; waiting for completion
            [latest-22002]2022-01-04T17:33:01.562Z Rule:5:813:Rule.js Rule#rule-grpqosf66u Humidifier On requesting eval; data-changed from Data#states:expr-global-CurrentHumid
            [latest-22002]2022-01-04T17:33:01.563Z Rule:5:1009:Rule.js Rule#rule-grpqosf66u evaluation in progress; waiting for completion
            [latest-22002]2022-01-04T17:33:01.564Z Rule:5:813:Rule.js Rule#rule-grpqoyiumi Humidifier Off requesting eval; data-changed from Data#states:expr-global-CurrentHumid
            [latest-22002]2022-01-04T17:33:01.565Z Rule:5:1009:Rule.js Rule#rule-grpqoyiumi evaluation in progress; waiting for completion
            [latest-22002]2022-01-04T17:33:01.566Z Engine:5:984:Engine.js [Engine]Engine#1 var CurrentHumid changed, evaluating dependent child LowHumidity
            [latest-22002]2022-01-04T17:33:02.407Z Engine:ERR [Engine]Engine#1: error evaluating expression OutsideTemp: [RangeError]RangeError: Maximum call stack size exceeded
            [latest-22002]2022-01-04T17:33:02.411Z Engine:ERR [Engine]Engine#1: expression: getEntity( "hass>sensor_ottawa_kanata_orleans_temperature" ).attributes?.temperature_sensor?.value ?? OutsideTemp
            [latest-22002]2022-01-04T17:33:02.411Z Engine:ERR [Engine]Engine#1: path LowHumidity->CalculatedHumid->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp

            And this is how it ended

            OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp->OutsideTemp
            [latest-22002]2022-01-04T17:33:02.415Z Engine:CRIT RangeError: Maximum call stack size exceeded
            RangeError: Maximum call stack size exceeded
            at /opt/reactor/server/lib/Logger.js:434:21
            at Array.forEach (<anonymous>)
            at Logger._emit_streams (/opt/reactor/server/lib/Logger.js:428:57)
            at Logger._emit_streams (/opt/reactor/server/lib/Logger.js:436:71)
            at Logger._emit_streams (/opt/reactor/server/lib/Logger.js:436:71)
            at Logger._emit (/opt/reactor/server/lib/Logger.js:423:35)
            at Logger.err (/opt/reactor/server/lib/Logger.js:452:31)
            at Engine._eval_expr (/opt/reactor/server/lib/Engine.js:954:57)
            at Engine._expr_resolve (/opt/reactor/server/lib/Engine.js:1217:38)
            at _resolve (/opt/reactor/common/lexp.js:1217:35)
            [latest-22002]2022-01-04T17:33:02.416Z Engine:ERR [Engine]Engine#1: error evaluating expression OutsideTemp: [RangeError]RangeError: Maximum call stack size exceeded
            [latest-22002]2022-01-04T17:33:02.416Z Engine:ERR [Engine]Engine#1: expression: getEntity( "hass>sensor_ottawa_kanata_orleans_temperature" ).attributes?.temperature_sensor?.value ?? OutsideTemp

            Using MSR 25139 on Docker, on a Raspberry Pi with Bookworm. Home Assistant 2025.07, Z-Wave JS-UI 10.6.1

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            • toggledbitsT Offline
              toggledbitsT Offline
              toggledbits
              wrote on last edited by
              #12

              OK. I'm busy this afternoon, but will look at it later today.

              Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

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              • toggledbitsT Offline
                toggledbitsT Offline
                toggledbits
                wrote on last edited by
                #13

                OK. I think I have this nailed down. Sorry it took me so long, I was working on an edge case to make sure the system stays in control under the worst of conditions. Is essence, as I suspected, the first issue is that the dependency loop check had an error and wasn't always working. In addition, I've added additional checks for more cases where a loop may evade the first check. Also, the system should remain in control if a loop does sneak by the checks, rather than hanging.

                Build will be published shortly...

                Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

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                • V vezinpi

                  @toggledbits I might have celebrated a bit too soon on that one. After doing the change all seemed fine. Tested the null value and a temperature change and all was working as advertised. After a certain time I am getting an error and the container crashes and cannot be re-started. By looking at the container log, I can see some issues with the file sys_alerts.json. Indeed the file is still in the storage folder but has a size of 0 byte and is complety empty. I replaced the empty file by the original one (I keept a copy of all files of the reactor folder after the original install) and was able to restart the container but it eventually crashed again. I changed the OutsideTemp expression back to what is was and I am back to normal. I am in the process of collecting log info and whatever might be relevant to investigate. It does seemed similar to my original problem where the expression is self trigering and get caught in a loop. I will be in and out this week so it may take some time before I get back to you. In the interim here is a screen capture of the error:

                  36833887-cd63-44ea-a125-d6b0fb242330-image.png

                  toggledbitsT Offline
                  toggledbitsT Offline
                  toggledbits
                  wrote on last edited by
                  #14

                  @vezinpi I've added one additional guard to the expression in the post linked below. You should make that edit as well during your upgrade.

                  https://smarthome.community/post/11053

                  Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

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                  • toggledbitsT toggledbits

                    OK. I think I have this nailed down. Sorry it took me so long, I was working on an edge case to make sure the system stays in control under the worst of conditions. Is essence, as I suspected, the first issue is that the dependency loop check had an error and wasn't always working. In addition, I've added additional checks for more cases where a loop may evade the first check. Also, the system should remain in control if a loop does sneak by the checks, rather than hanging.

                    Build will be published shortly...

                    V Offline
                    V Offline
                    vezinpi
                    wrote on last edited by
                    #15

                    @toggledbits said in Global Expression with null value and Auto-Evaluation:

                    OK. I think I have this nailed down. Sorry it took me so long

                    You have nothing to be sorry about. Being aware of a potential issue, evaluating the problem, developping a solution and posting a new version in the same day, is really remarquable and almost unheard of now a day.

                    Thanks you for your dedication.

                    Using MSR 25139 on Docker, on a Raspberry Pi with Bookworm. Home Assistant 2025.07, Z-Wave JS-UI 10.6.1

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                    • V Offline
                      V Offline
                      vezinpi
                      wrote on last edited by
                      #16

                      Installed the new version yesterday along with the new guard and all is still fine this morning. Considering that it was failing very quickly before, I consider that issue fixed.

                      Using MSR 25139 on Docker, on a Raspberry Pi with Bookworm. Home Assistant 2025.07, Z-Wave JS-UI 10.6.1

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