[GEODE-6877] Delete code related to Gateway Delta Replication in Tomcat session state module

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: http session
• Assignee: Unassigned
• Reporter: Ryan McMahon
• Created: 17/Jun/19 16:19
• Updated: 17/Jun/19 16:19

Description

There is a partially implemented feature for replicating session state over WAN, but it is currently hard coded to be disabled.  From DeltaSessionManager:

@Override
public boolean getEnableGatewayDeltaReplication() {
  // return this.enableGatewayDeltaReplication;
  return false; // disabled
}

There is a lot of code to support this feature which is not used (because of the above hard coding) and also not well tested.  It seems whatever use case that was driving this feature is no longer high priority, because this feature was never totally finished and documented.  As such, we should remove all the code related to this unfinished feature to avoid clutter.  This will result in deletion of a lot of code in the Tomcat session state core classes, as well as the code in the gatewaydelta package.  The exact code which can be deleted can be determined by tracing the usages of the configuration and supporting classes.

Issue Links

• is a child of: GEODE-6864 Epic For Session State Caching