d1_log_aggregation has different version of Hazelcast than the rest of CN stack. Hazelcast version very out of date.
hazelcast versions in use: (2) => 2.4.1, 2.6.9
only d1_log_aggregation used 2.6.9, the rest are at an earlier version.
Also, Hazelcast is up to version 3.7.5, and has very healthy release history (lots of point releases). Not sure if we should invest time upgrading Hazelcast, or move to different tech. Key consideration is support for multi-site clusters.
#2 Updated by Rob Nahf over 6 years ago
Hazelcast 3.5 introduces support for Reliable Topics, so should be the earliest version we consider upgrading to.