topic Re: Unable to construct the map service instance in Python Questions https://community.esri.com/t5/python-questions/unable-to-construct-the-map-service-instance/m-p/687027#M53192 <HTML><HEAD></HEAD><BODY><P>Hi Priyabrata</P><P></P><P>I would check out this resource page:</P><P><A href="http://resources.arcgis.com/en/help/main/10.2/index.html#//0154000003sp000000" title="http://resources.arcgis.com/en/help/main/10.2/index.html#//0154000003sp000000">ArcGIS Help (10.2, 10.2.1, and 10.2.2)</A>‌</P><P></P><P><SPAN style="color: #4d4d4d; font-family: Arial, Helvetica, sans-serif;">The CachingControllers service (in the System folder) determines how many jobs can run at the same time; the default max instances is 3, has that been modified? How many cores does your CPU have? <SPAN style="color: #4d4d4d; font-family: Arial, Helvetica, sans-serif;"> </SPAN><SPAN style="color: #4d4d4d; font-family: Arial, Helvetica, sans-serif;">If too many publishers start requesting cache to be built at the same time, the server can get overwhelmed, even if you only choose to dedicate a small number of instances toward each job</SPAN>.</SPAN></P><P></P><P><SPAN style="color: #4d4d4d; font-family: Arial, Helvetica, sans-serif;">-Daniel</SPAN></P></BODY></HTML> Fri, 22 Aug 2014 16:38:51 GMT DanielStauning 2014-08-22T16:38:51Z Unable to construct the map service instance https://community.esri.com/t5/python-questions/unable-to-construct-the-map-service-instance/m-p/687026#M53191 <HTML><HEAD></HEAD><BODY><P><BR />Hi ,</P><P>Everytime I start cache generation process of two map services in&nbsp; parallel thorugh python script using arcpy.ManageMapServerCacheTiles_server method, cache generation process gets aborted due to some error. In log "ERROR 001452 Unable to construct the map service instance" message comes. But when I run same two services saparately, Cache generation process gets successfully completed.</P><P>I am using Arcgis 10.2 version.</P><P>Please help me. Thanks in advance.</P></BODY></HTML> Fri, 22 Aug 2014 12:33:25 GMT https://community.esri.com/t5/python-questions/unable-to-construct-the-map-service-instance/m-p/687026#M53191 PriyabrataKundu 2014-08-22T12:33:25Z Re: Unable to construct the map service instance https://community.esri.com/t5/python-questions/unable-to-construct-the-map-service-instance/m-p/687027#M53192 <HTML><HEAD></HEAD><BODY><P>Hi Priyabrata</P><P></P><P>I would check out this resource page:</P><P><A href="http://resources.arcgis.com/en/help/main/10.2/index.html#//0154000003sp000000" title="http://resources.arcgis.com/en/help/main/10.2/index.html#//0154000003sp000000">ArcGIS Help (10.2, 10.2.1, and 10.2.2)</A>‌</P><P></P><P><SPAN style="color: #4d4d4d; font-family: Arial, Helvetica, sans-serif;">The CachingControllers service (in the System folder) determines how many jobs can run at the same time; the default max instances is 3, has that been modified? How many cores does your CPU have? <SPAN style="color: #4d4d4d; font-family: Arial, Helvetica, sans-serif;"> </SPAN><SPAN style="color: #4d4d4d; font-family: Arial, Helvetica, sans-serif;">If too many publishers start requesting cache to be built at the same time, the server can get overwhelmed, even if you only choose to dedicate a small number of instances toward each job</SPAN>.</SPAN></P><P></P><P><SPAN style="color: #4d4d4d; font-family: Arial, Helvetica, sans-serif;">-Daniel</SPAN></P></BODY></HTML> Fri, 22 Aug 2014 16:38:51 GMT https://community.esri.com/t5/python-questions/unable-to-construct-the-map-service-instance/m-p/687027#M53192 DanielStauning 2014-08-22T16:38:51Z