topic Multiprocessing &amp;amp;amp; in_memory workspace - table writing conflicts? in Python Questions https://community.esri.com/t5/python-questions/multiprocessing-amp-amp-amp-in-memory-workspace/m-p/718759#M55667 <HTML><HEAD></HEAD><BODY><SPAN>If I have multiple processes working away, the sample posted at </SPAN><BR /><A href="http://blogs.esri.com/esri/arcgis/2012/09/26/distributed-processing-with-arcgis-%e2%80%93-part-1/">http://blogs.esri.com/esri/arcgis/2012/09/26/distributed-processing-with-arcgis-%e2%80%93-part-1/</A><BR /><BR /><SPAN>makes it appear that you can write to a single table in_memory\identical&nbsp; in all the processes.</SPAN><BR /><BR /><SPAN>That would suggest a separate copy of the workspace for each process, which I think it was Bruce Harold says in the comments. But frankly, I am still lost.</SPAN><BR /><BR /><SPAN>What's making me confused is the commentary in this thread</SPAN><A href="http://gis.stackexchange.com/questions/35614/concurrent-use-of-in-memory-workspace-in-arcpy">http://gis.stackexchange.com/questions/35614/concurrent-use-of-in-memory-workspace-in-arcpy</A><BR /><BR /><SPAN>which makes it seem like in_memory is shared across processes and is sort of like a "folder" in that you are OK to write to multiple tables as long as they have different names, but NOT to the same table name. Note, ths gis.stackexchange post is from 2011.</SPAN><BR /><BR /><SPAN>So my question is whether a separate in_memory workspace is created for each process (so all processes end up writing to their own in_memory\table1 or whether it is shared, so you need to change the table names in_memory\table1, in_memory\table2, etc. or something else?</SPAN><BR /><BR /><SPAN>I know I should just code and test, but maybe my test will work but under the hood it is "unsafe."</SPAN></BODY></HTML> Thu, 01 Nov 2012 21:34:02 GMT HarryBowman 2012-11-01T21:34:02Z Multiprocessing &amp;amp; in_memory workspace - table writing conflicts? https://community.esri.com/t5/python-questions/multiprocessing-amp-amp-amp-in-memory-workspace/m-p/718759#M55667 <HTML><HEAD></HEAD><BODY><SPAN>If I have multiple processes working away, the sample posted at </SPAN><BR /><A href="http://blogs.esri.com/esri/arcgis/2012/09/26/distributed-processing-with-arcgis-%e2%80%93-part-1/">http://blogs.esri.com/esri/arcgis/2012/09/26/distributed-processing-with-arcgis-%e2%80%93-part-1/</A><BR /><BR /><SPAN>makes it appear that you can write to a single table in_memory\identical&nbsp; in all the processes.</SPAN><BR /><BR /><SPAN>That would suggest a separate copy of the workspace for each process, which I think it was Bruce Harold says in the comments. But frankly, I am still lost.</SPAN><BR /><BR /><SPAN>What's making me confused is the commentary in this thread</SPAN><A href="http://gis.stackexchange.com/questions/35614/concurrent-use-of-in-memory-workspace-in-arcpy">http://gis.stackexchange.com/questions/35614/concurrent-use-of-in-memory-workspace-in-arcpy</A><BR /><BR /><SPAN>which makes it seem like in_memory is shared across processes and is sort of like a "folder" in that you are OK to write to multiple tables as long as they have different names, but NOT to the same table name. Note, ths gis.stackexchange post is from 2011.</SPAN><BR /><BR /><SPAN>So my question is whether a separate in_memory workspace is created for each process (so all processes end up writing to their own in_memory\table1 or whether it is shared, so you need to change the table names in_memory\table1, in_memory\table2, etc. or something else?</SPAN><BR /><BR /><SPAN>I know I should just code and test, but maybe my test will work but under the hood it is "unsafe."</SPAN></BODY></HTML> Thu, 01 Nov 2012 21:34:02 GMT https://community.esri.com/t5/python-questions/multiprocessing-amp-amp-amp-in-memory-workspace/m-p/718759#M55667 HarryBowman 2012-11-01T21:34:02Z