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Commons JCS™

Lateral JGroups Auxiliary Cache

The Lateral JGroups Auxiliary Cache is an optional plug in for JCS. It is primarily intended to broadcast puts and removals to other local caches, though it can also get cached objects. It uses JGroups for distribution.

The Lateral Lateral JGroups Auxiliary Cache is far slower than that Lateral TCP Auxiliary Cache. Since the Lateral TCP Auxiliary is faster and has UDP discovery built in, the TCP auxiliary is the recommended form of lateral distribution. However, the JGroups Auxiliary requires fewer socket connections than the TCP lateral.

A functional configuration example is below:

# Lateral JavaGroups Distribution
jcs.auxiliary.LJG=org.apache.commons.jcs.auxiliary.lateral.LateralCacheFactory
jcs.auxiliary.LJG.attributes=org.apache.commons.jcs.auxiliary.lateral.LateralCacheAttributes
jcs.auxiliary.LJG.attributes.TransmissionTypeName=JAVAGROUPS
jcs.auxiliary.LJG.attributes.PutOnlyMode=true
jcs.auxiliary.LJG.attributes.JGChannelProperties=UDP(mcast_addr=224.0.0.100;mcast_port=7501):PING:FD:STABLE:NAKACK:UNICAST:FRAG:FLUSH:GMS:QUEUE