Alteryx Designer Desktop Discussions

markperrone · ‎10-28-2021

For the tool do the 1,2,3 "outputs" dictate the order of execution ?

does the output 1 get done before output 2 ?

I read the tools connected to the outputs are executed done in id order. would that be across all outputs and tools ?

If tool id 1 is attached to output 2 and tool id 3 is attached to output 1 what is the order of execution ?

chukleswk · ‎10-28-2021

This video will walk through the Block Until Done tool: Block Until Done

But, to give a quick summary, the order of execution is that output 2 won't run until output 1 is done running and output 3 won't run until output 1 and 2 are completed running.

csmith11 · ‎10-29-2021

Please consider marking a reply as a solution so that other users can quickly locate solutions in the community.

For the tool do the 1,2,3 "outputs" dictate the order of execution ? Yes

does the output 1 get done before output 2 ? Yes. (What is defined as done may surprise you though. See Example 2)

Example 1

Below I rearrange the order of the Block until down tools to illustrate the execution order more clearly.

You'll notice 1 executes first, then 2 second, then 3 third.

Example 2

However, I recently discover this issue with the block until done tool: The 1st stream of data executes until the Join Tool (At this point its considered done) then it allows the 2nd and 3rd stream to execute before Message 14. This was surprising behavior that you'll want to keep in mind. When working with Block Until Done Typically the whole data stream should execute on output 1 first. The exception being the Join Tool (This is considered the end of the execution for a given stream)