Dashboard Controls stop working after sometimes

[Waqas Aslam]

Hi,

I'm experiencing a weird behavior with node-red dashboard controls.

Let's say, I add a simple UI-button with debug node attached to it just to output timestamp message, initially it works. But after certain hours (or unspecified time duration) when I click the button again, nothing happens. All the button clicks are ignored.

The only way to fix this is, either I slightly modify the flow (e.g attach another debug node) to start/stop node-red flows, or restart node-red service.

This entire experience is quite strange and it's even hard for me to put into words.

I checked service logs and didn't find anything there i.e. no error from node-red was reported.

Node-RED version: v0.17.4

Node.js  version: v8.0.0

Linux version: 4.4.0-96-generic ia32 LE

Dashboard version: 2.5.0

I didn't experience such behavior in older dashboard versions.

Is there any suggestions on how to further investigate or resolve the issue?

Thanks

[Colin Law]

One thing to try for more information is to open the console window in
the browser (Ctrl-Shift-K in firefox) and then leave it running. See
if there is anything different when it fails.

Colin

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[Waqas Aslam]

Hi

I noticed it happening today again.

Below is the console output from Chrome browser.

https://pastebin.com/raw/hHWXvUG3

I clicked the UI button several times, but nothing happened. It started to work again when I disabled/enabled debug node and clicked "Deploy".

regards

-Waqas

[Markus Ulsaß]

I have the same problem with dashboard controls which get unresponsive over time with no specific pattern.

I'm using:

Node-RED version: v0.17.4
Node.js  version: v8.1.4
Linux 4.9.41-v7+ arm LE
Dashboard version 2.4.3 started at /ui

on a Raspberry Pi 3.

It doesn't matter if I'm using Chrome or Firefox and even have disabled caching on both

Funny part of it: I have a tab with controls, where some ui-controls are working and some don't both on the same flow.

To get it working again I have to either restart the flow (how can i Automate that, e.g. after a specific time/ event) or have to start node-red over.

Markus

[Colin Law]

What do you mean when the say the control is not working? Give a
detailed example of what you see.

Do you see anything if you follow my advice earlier in the thread to
look in the browser console?

Colin

> https://groups.google.com/d/msgid/node-red/45d96394-7aa1-490d-be64-6fd19be6e52c%40googlegroups.com.

[Waqas Aslam]

Hi Colin,

In my previous reply I did include output of my browser console.

The same issue is discussed here also:

https://github.com/node-red/node-red-dashboard/issues/279

Temporary solution: Perform Full Deploy whenever a flow is modified.

-Waqas