topic arcpy.na.BuildNetwork() is leaving dirty areas behind, why? in ArcGIS Network Analyst Questions

arcpy.na.BuildNetwork() is leaving dirty areas behind, why?

ShawnaErnst — Sat, 17 Oct 2015 21:53:10 GMT

We have the following process (running on a 10.3.1 SQL SDE database from a 10.3.1 client):

Using python:

Step 1. Truncate the roads feature class in Database B.

Step 2. Append the roads features into Database B from Database A (the source).

Step 3. Run arcpy.na.BuildNetwork() on our network dataset in Database B.

The network uses the roads, restricted turns, and that's about it (no elevation or anything else).

The network sometimes rebuilds fine, and sometimes has dirty areas in the entire extent of the roads feature class. This only happens from python, running from ArcCatalog, it consistently builds correctly.

Also, running arcpy.na.BuildNetwork() on a network in a File GDB works correctly.

Anyone else experienced this behavior? Any ideas as to the cause?

Re: arcpy.na.BuildNetwork() is leaving dirty areas behind, why?

JoeBorgione — Sat, 17 Oct 2015 23:19:50 GMT

I can't comment on the arc py issue, but using feature datasets and the special features there in can be problematic within the SDE environment. Sounds to me like this is another example.

Re: arcpy.na.BuildNetwork() is leaving dirty areas behind, why?

MelindaMorang — Mon, 19 Oct 2015 15:59:29 GMT

This sounds suspiciously like a bug. The best thing for you to do would be to contact Esri Support. They can either help you with the issue or diagnose the bug and send it off to the right team for fixing.

Re: arcpy.na.BuildNetwork() is leaving dirty areas behind, why?

ShawnaErnst — Mon, 19 Oct 2015 16:02:35 GMT

Thanks, Melinda. That's definitely my next step. I'm writing up some documentation now.

Shawna

Re: arcpy.na.BuildNetwork() is leaving dirty areas behind, why?

Joachim_EckboJuell — Wed, 25 Nov 2015 14:49:43 GMT

Shawna Ernst - did you find a solution to this? I'm having the exact same problem. Works fine in ArcCatalog, but not from Python. The BuildNetwork-process takes time in Python, so something is happening. But when I look at the Network Dataset in ArcCatalog afterwards, its empty and "Not built".

Re: arcpy.na.BuildNetwork() is leaving dirty areas behind, why?

ShawnaErnst — Wed, 25 Nov 2015 18:38:16 GMT

Joachim- I started a support ticket with ESRI on October 19th, and we're still working through it. I will definitely post back here when I get an answer. The ticket just got escalated and the analyst who is working on this now seems really bright- so I'm hopeful that we'll get it resolved.

Re: arcpy.na.BuildNetwork() is leaving dirty areas behind, why?

KostaBidoshi — Fri, 05 Feb 2016 19:36:19 GMT

Shawna- Any updates on this? We are running into the same problem. Did ESRI open a bug for this issue?

Re: arcpy.na.BuildNetwork() is leaving dirty areas behind, why?

ShawnaErnst — Wed, 10 Feb 2016 20:17:14 GMT

Kosta- Yes, they assigned bug ID - BUG-000093420.

From looking at the bug notes, it looks like this isn't an issue in 10.4, but I haven't tested that for myself yet.