Latest Contributions by WhereMatters

Hi, I have used multiprocessing in the past to perform some intensive geoprocessing and was able to speed up by using all cores . It worked quite well. These were all script tools that were used in Desktop. However, I had a question if multiprocessing can be used in a geoprocessing service and would that actually be sensible. I am looking at a script that performs a series of geoprocessing steps over separate point locations and the problem is embarrassingly parallel. It takes between 3 to 4 minutes per location for processing. However, it also needs to be available as a gp service. So lets say, a user submits a job and the server is using up all cores to process that job. Does it mean that if another user submits a job, he has to wait till the previous job completes and frees up the cores? This would mean the second user will have to wait for a long time to get results back.  I could set it up to use only half the cores, does that mean it will now support two concurrent users? The third one has to wait till one of the previous two completes and frees up some cores. If you dont use multiprocessing, does it mean that you will be able to support more concurrent users, but the completion of each job will take a very long time since the geoprocessing steps are run in series.  It would be great to hear some thoughts and experiences on this from you guys! Any other options to improve performance and scale, other than adding servers to the cluster? Thanks. ... View more

I am unable to solve a closest facility problem in ArcGIS Desktop 10.2.2 with ArcPy using the sample code provided in help documentation. I get this error: ERROR: A geoprocessing error occurred. ERROR 001156: Failed on input OID 32768, could not write value '32768' to output field ORIG_FID Failed to execute (FeatureClassToFeatureClass). An error occured on line 27 A geoprocessing error occurred. ERROR 001156: Failed on input OID 32768, could not write value '32768' to output field ORIG_FID Failed to execute (FeatureClassToFeatureClass). Failed to execute (FindClosestFacilities). It seems to me this is a bug with field mapping that is occurring internally. Its obvious that ORIG_FID should be a long int and it actually is short int. That is why we are seeing this exception at 32768. I am using the San Francisco network dataset available in ArcGIS tutorial data, with some randomly generated facilities (about 100,000) over the area. This is the code that throws the error. import arcpy from arcpy import env try:     # Check out the Network Analyst extension license     arcpy.CheckOutExtension("Network")     # Set environment settings     env.workspace = r'C:\arcgis\ArcTutor\Network Analyst\Tutorial\SanFrancisco.gdb'     env.overwriteOutput = True     # Set local variables     inNetworkDataset = r'C:\arcgis\ArcTutor\Network Analyst\Tutorial\SanFrancisco.gdb\Transportation\Streets_ND'     inIncidents = r'D:\Sample data\sampledata.gdb\incident'     inFacilities = r'D:\Sample data\sampledata.gdb\manholes_sf'     outGeodatabase = r'D:\Sample data\sampledata.gdb'     #outGeodatabase = "in_memory"     outRoutes = "Routes"     outDirections = "Directions"     outClosestFacilities = "ClosestFacilities"     measurement_units = "Meters"     # Run FindClosestFacilities. Choose to find only the closest facility.     arcpy.na.FindClosestFacilities(inIncidents, inFacilities, measurement_units,                                     inNetworkDataset, outGeodatabase, outRoutes,                                     outDirections, outClosestFacilities,                                     Number_of_Facilities_to_Find=1)     print "Script completed successfully" except Exception as e:     # If an error occurred, print line number and error message     import traceback, sys     tb = sys.exc_info()[2]     print "An error occured on line %i" % tb.tb_lineno     print str(e)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ... View more

Consider this ImageService which is a Land cover raster layer with many classes e.g, forest, water, shrubland. I am trying to use the new RasterLayer API to find which pixels are within the buffer geometry and summarize the areas of forest, water, shrubland within the buffer geometry. Is this possible? I can see the pixelData, but how does one find which pixel lies within the buffer geometry? and then compute the areas for each class within the buffer geometry. I did see a similar example being demonstrated in one of the videos at video.arcgis.com (pl see screenshot). Not sure how they did that, any clues? ... View more

When scripting the publishing of geoprocessing services using python, how can we set certain tool parameters to be of "Constant value" type or "User Defined" type? Can we do this only in the service editor in Desktop while publishing? How can we do this via scripting? ... View more

Hi, I have a toolbox(.tbx) containing a python script tool which has a featureset as one of the inputs. I have set the schema for this featureset in Desktop and I am able to interactively create features on the map while running the script tool. How do I do this in ArcGIS Pro? When I open the same script tool in ArcGIS Pro, it does not show me the option to create features interactively. It asks me to browse to a layer! ... View more

Hi, I see that you can display a layer and field selector in the configuration panel. I was wondering how can you display tables that are added to the webmap as a list that users can choose from? If you look at the graphic below, it has an example of supportedTypes: FeatureLayer, in LayerOptions I got this snap from Add configurable parameters to templates—ArcGIS Online Help | ArcGIS What's the key to use a table? What are the other supported types? Is there a list of supportedTypes values available somewhere? regards Anand ... View more

ArcGIS DataStore schedules regular backups of its database every 7 days by default and retains them for 31 days. Due to this, the disk space is getting filled up over a period of time. I am also seeing that most of the disk space is occupied at "C:\arcgisdatastore\backup\walarchive". I am thinking these are postgres db archive files as the name suggests. Is it ok to clean up this directory completely from time to time? Will this affect the ability to restore backups? ... View more