How to recover from a crash ? opened 07:36AM - 04 Sep 19 UTC (UTC) closed 08:51AM - 05 Sep 19 UTC (UTC) [dsl400] dsl400 I c…

I think it is quite nice that you actually see the problem presented to you why it crashed. It crashed - it cannot give you any options, resolve your code - it is part of programming.

[image] dsl400: In your code you know when the server crashes THe problem here, as I told you in the github issue, is that we don't know what has caused the crash. It could be: a problem in the user's own code - such as the example you gave a bug in any of the nodes they have installed a b…

after crash nodered logs: 4 Sep 08:22:55 - [red] Uncaught Exception: 4 Sep 08:22:55 - ReferenceError: undefindenFunction is not defined at Function node:cdf5d431.98a838 [Camera Init]:14:5 nodered.service: Main process exited, code=exited, status=1/FAILURE so you do know what crashed and you can te…

[image] dsl400: so you do know what crashed and you can tell this to the user: For the very specific example of a Function node not handling its errors, then we might be able to detect that and provide a more detailed error in the log - as I said in my previous reply. [image] dsl400: fai…

In my humble opinion a node-red user should not see "page not found" or have to use any other kind of tools to restore functionality of the node-red server being the fact that all he/she did was a typo Imagine that windows would BSOD on you every time you type a letter in the calculator app. angul…

[image] dsl400: Imagine that windows would BSOD on you every time you type a letter in the calculator app. Careful what you imagine. :stuck_out_tongue_closed_eyes:

so far it does not .... will test tomorrow ... maybe it will :slight_smile:

It is not only the 'uncaughtException', but every async operation like unhandled errors in EventEmitters (missing on('error',...)) and unhandled promise rejections. If any of these happen in your function node, in some cases you cannot even tell that it came from there, as the code is executed from …

Did someone say calculator crashes.... ? only occasionally - https://www.google.com/search?q=crash+windows+calculator+app&oq=crash+windows+calculator+app&aqs=chrome..69i57.6184j0j7&sourceid=chrome&ie=UTF-8 :slight_smile:

[image] dceejay: Did someone say calculator crashes.... ? only occasionally no BSOD .... so it does not apply to this topic ... you will have to dig deeper :))))

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Recover from server crash

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Bobo 5 September 2019 10:04 7

Careful what you imagine.

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Recover from server crash

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