Block unless value changes

General
1

Hello.
I have a problem with the Filter-node, and more specific: When I use "Block unless value changes"
It works like a charm and I get a SMS everytime the value changes, Great!, ...until I work with another completely different flow.
Everytime I press "Deploy" I'll get a bunch of SMS from all the nodes that uses the filter-node with the "Block unless value changes", even if the value is the same.
What can I do to avoid this?

2

I assume you are using "full" deploy mode. This tares down and recreates all nodes (including the in-memory filter of the RBE/filter nodes)

Use "nodes" deploy mode instead.

The better solution is to use a database or other persistent storage to check if the message was sent instead of depending on in-memory state.

3

Try setting the deploy to only modified nodes, then the filter will only reset if you modify the filter node.

4

Also you might want to set the Filter node mode like this, so that it never passes the first message through.
image

5

Thanks both of you!
I have used Node-red for quite some time, but never reflected
over the different settings for deploy! :slight_smile: