Reset Date&Time Configuration , Variables nodes on every execution without manual reset

[nivedita_dixit]

Hello All,

I have to reset and execute the variable ( Java edit, StringtoPath …) nodes and Date&Time configuration nodes for every new run . I could not find any node in Knime to reset nodes which can help reset and execute to reset to reflect the latest execution time for example in Date&Time configuration node. Highly appreciate help to resolve this issue .

I did find Selenium has offered Reset on Load node to reset the nodes , which is marked as BETA ref: Reset on Load [BETA] — NodePit

Regards,
Nivedita

[badger101]

Hi @nivedita_dixit , have you tried this node?

[Date&Time Input – KNIME Hub]

But unfortunately even with this, you’ll still have to manually reset each time you’re applying a new execution date/time.

[nivedita_dixit]

@badger101 Yes. I do not have issue with the Date&Time configuration node, it works as expected. I want to the nodes to be reset after each execution , so that they pickup the latest execution time for next execution without manually resetting the nodes, not only Date&Time , variables as well

[badger101]

I see. Let’s wait for someone who knows a workaround for this case. I’m also curious to see what the solution is going to look like. Perhaps someone with coding knowledge can come up with something using the Java Snippet.

[mlauber71]

@nivedita_dixit this is indeed the node that I have used and thus one is free to use as I understand. You can use it in combination with a call workflow so the called workflow will be reset.

Then obviously this is a perfect task for the KNIME server which is there to call and coordinate workflows at certain times and intervals and also reset them.

Then you could employ a sort of permanent loop and maybe combine that with a call and a reset:

Start a Workflow, e. g. a database query, after a certain time

@USCHUKN1ME I tried to build a system you might be able to expand and use. The idea is to have a workflow that would iterate a number of times (v_number_of_intervals) with a set interval (of seconds) between (v_seconds_interval) them. The workflow looks for a trigger_file.csv if this file has changed from the last time the loop has run a component would be executed. If the file has not changed nothing would happen. Admittedly not the most elegant way but you could build a small automatic execu…

Call sub workflow from a main KNIME workflow – mlauber71

And I think you might have to plan what you want to do what your scenario is. Another option could be some sort of batch processing.

[nivedita_dixit]

@Start a Workflow

uild a system you might be able to expand and use. The idea is to have a workflow that would iterate a number of times (v_number_of_intervals) with a set interval (of seconds) between (v_seconds_interval) them. The workflow looks for a trigger_file.csv if this file has changed from the last time the loop has run a component would be executed. If the file has not changed nothing would happen. Admittedly not the most elegant way but you could build a small automatic execu…

Hi @mlauber71 , I was wondering is there no other mechanism , looping does seem to be best for for my workflow . All the utility nodes like Date&Time will have this issue , was looking at graceful way of handling it .

Regards,
Nivedita