topic Failed to execute TraceDownstream in ArcGIS Pro in ModelBuilder Questions

Failed to execute TraceDownstream in ArcGIS Pro

RolandDuhaime — Fri, 22 Mar 2019 19:59:21 GMT

I have created a model that uses the "Ready To Use Tools" from Model Builder in ArcGIS Pro. However, the model has started crashing with the following error:

There is no clear reason why it keeps crashing with the failed error "Could not service request" and "Failed to execute (TraceDownstream)." I am able to restart the model where it left off, but after a random number of iterations it crashes again. The number of iterations between errors is between 1 and ~130 iterations. Are the Esri data processing servers congested? I have run similar models in the past and they have crashed much less frequently.

I need to run this hydrology modelling tool close to 15,000 times but after several days of attempts, I have only gotten to about ~300 iterations due to this failed execution when accessing this online service. Any advice?

Thanks,

Roland

Re: Failed to execute TraceDownstream in ArcGIS Pro

RolandDuhaime — Sat, 23 Mar 2019 15:12:29 GMT

This is the location of the hydrology REST service that the tool is using: https://hydro.arcgis.com/arcgis/rest/services\Tools/Hydrology\TraceDownstream

Re: Failed to execute TraceDownstream in ArcGIS Pro

RolandDuhaime — Tue, 30 Apr 2019 16:22:51 GMT

I tested this again, a few days ago, and it was still crashing with the same "Failed to Execute" error.

Re: Failed to execute TraceDownstream in ArcGIS Pro

KoryKramer — Wed, 10 Jul 2019 13:46:58 GMT

Maybe Shitij Mehta‌ or somebody else could take a look into this...

Re: Failed to execute TraceDownstream in ArcGIS Pro

ShitijMehta — Fri, 12 Jul 2019 23:37:55 GMT

Hi Roland,

Have you tried running it from the rest end point? Is it failing even from this?
https://hydro.arcgis.com/arcgis/rest/services/Tools/Hydrology/GPServer/TraceDownstream/submitJob
How big is the data?
Are you creating lot of intermediate data?
Can you share a snapshot of the model?

Thanks!

Re: Failed to execute TraceDownstream in ArcGIS Pro

RolandDuhaime — Fri, 26 Jul 2019 13:36:25 GMT

Hi Shitij,

Have you tried running it from the rest end point? Is it failing even from this?

I have not tried that rest endpoint because the tool connects to a different location. How would I go about changing the rest endpoint of the ready to run tool... TraceDownstream?

https://hydro.arcgis.com/arcgis/rest/services/Tools/Hydrology/GPServer/TraceDownstream/submitJob
How big is the data?

I am passing a single data point to the service for each iteration. There are thousands of points..

Are you creating lot of intermediate data?

I am not sure how to know what a lot is. I am passing a single point to the tool... I process the returned stream segment and then iterate to another point.

Can you share a snapshot of the model?

Yes.

Thanks,

Roland