Got a weird error which I tracked down to delay node (configured as rate limit with delay). Not sure what is going on. NR version: 4.1.1. Node: 22 When sending flush control message, it also outputs the control message from the delay (with flush prop removed). The message I define with flush inc…

Digged some more, and it seems to be affected by link in/out nodes. When function node use return {reset: 1}, it automagically adds _msgid prop. When it goes through link node, _event prop is added. Seems like queue node can handle msg with reset, _msgid and _event. But when I try the same with flu…

The flush message must be empty apart from the flush (and _msgid). The best way is to use a function node in the flush path, containing just return {flush:1} or similar.

Moving function node to the other side of the link (after link in) would work yeah. However then I need to stack multiple links there, one for flush, one for reset and so on. Right now all the flushes and resets are before the link out. Admittedly a bit of code duplication. But then I use the same f…

I used to consider normal links as equivalent to "hidden" link in/out nodes. But to my surprise they are not interchangeable. For me, this was confusing as it caused a flow to crash. At least now I know and will take great care in future when dealing with link in/out nodes. Perhaps too late now, bu…

[image] ThingsTinkerer: I used to consider normal links as equivalent to "hidden" link in/out nodes What is a normal link?

They are called wires? The lines or cables between nodes. Normally you start out with the visible ones. Later, I tried the more advanced hidden/invisble wires, they are dotted if you select an entry/exit node.

It does seem surprising that if you send a msg like this with no payload { "topic": "This is going on the queue", "flush": 3 } Then the delay node (Not a queue node, which does exist but this isn't it) will flush three messages as well as adding the flush message to the queue. I can see it might…

Sorry for confusing node name. At least you added the topic yourself.

Weird delay output (empty message)

General

Colin 30 October 2025 17:24 8

So are you saying you are seeing a difference between a wire and a link out/link in pair?
There is a difference with link call/return as it has to add the return meta data to the message, but I am not aware of anything similar with link out/in.

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Weird delay output (empty message)

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