Cache behaviour on production topology

[marshall]

The latest release of Datomic Cloud includes a fix for this issue:

Datomic Cloud version 470-8654

This message covers changes in this release. For more details, see https://docs.datomic.com/cloud/releases.html 02/22/2019 - 470-8654 - Compute Template Update The 470-8654 release contains fixes, enhancements, and dependency updates: Fix: Production nodes now use the documented -Xss values for starting the JVM, preventing stack overflow when compiling complex ion applications. Fix: Fixed bug where ion connections could fail to become aware of recent transactions in a timely manner. Fix: Al…