Configuration:
Oracle 12c (12.1.0.2 Oct 2015 PSU)
SDE 10.3.1 + Patches
ArcGIS Desktop 10.3.1
Background information:
-Feature classes are registered as versioned, but not with the move to base option.
-Concurrent users edit against default version, there are no explicit versions in the database
-Replicas exist for one-way replication to child database
-Editors save changes every 10-15 minutes, but will have the same editing session open throughout the day
-Editors could be concurrently editing the same feature class, though less common
-Attribute Assistant is used
Issue:
Since the upgrade, several users have reported receiving the following error message. 44648 - Unable to reconcile: the target version is currently being reconciled against and have lost their edits as a result. It is understood that saving a large volume of edits at the same time to the default version could produce this error message.
Concerns:
This error message is more common since we have upgraded from SDE 10.2.2 to 10.3.1/Oracle11g to Oracle12c. Performance certainly has degraded with the upgrade despite the increased database memory allocation and could account for the increased chance of a long reconcile. However are there other factors that should be considered as to the cause of the error message?
