I am publishing a service from ArcMap 10.8.1 into ArcGIS Enterprise 10.8.1 (federated with Portal) but I'm noticing that this one service is generating a massive SDDraft file during the publishing process. Normally they would be around 2-3Mb, but this one is ~400Mb!
For reference we have a development environment which we publish to first and this is nowhere near that size (the usual 2-3Mb) but on our Production environment it suddenly jumps. There are warnings when I analyze the mxd ahead of publishing, but only the ones we usually get, mostly around the fact that many of the layers are linear referencing event layers (our development environment gets these too) but nothing else to indicate that the SDDraft will be so huge! Don't get me wrong, the thing does successfully publish (although it takes a long time!) but I just wanted to understand and fix this issue in case it should lead to further trouble down the road.
Thanks in advance for any input.
Dan