OldestCRSession is unreliable
The cache statistic OldestCRSession is used to determine which session
that is in transaction is holding the oldest commit record, and thus causing
a commit record backlog. This statistic is not always updated when an
update is needed; it may remain set to a session even when that session
is committing and no longer holding the oldest commit record, or to a session
that is logged out.
Workaround
Executing the following Smalltalk code may produce better results:
System sessionsReferencingOldestCr
Last updated: 5/29/14