Ballooning Feature Layer Size

[mpboyle]

We have a feature layer that over the past couple days has ballooned in size with no reasonable explanation I can find.

This feature layer contains approximately 11k line features and less than 10 fields. Every 10 minutes the feature layer has all rows deleted and replaced using a feature set and the Python API.

This morning I manually overwrote the feature layer, and the item size was around 5MB.  A few hours later, the item has ballooned in size to 250MB!?!  

The feature layer does NOT have editing enabled, no associated views, no extra indexes, does NOT have optimize layer drawing enabled, and no attachments.

Is there any reasonable explanation for why this feature layer continues to balloon in size?

[D_Atkins]

Throwing things at the wall, here:

Problem: Hosted Feature Service Size Increases Continuously

[mpboyle]

Editing is not enabled, sync not enabled.

[MobiusSnake]

I don't have an explanation, but maybe something to try.  If you're currently using deleteFeatures() or editFeatures() in the API, see whether it still happens if you switch to FeatureLayerManager.truncate().