When cached data becomes invalid or stale, Dynacache will send an invalidation message that is received by all the JVMs in the cluster that subscribe to the replication domain, and also by eXtreme Scale (WXS) if used. It is possible that if invalidations are missconfigured or untuned, the cost replication creates from light performance degradation, to a complete outage.
In this post I will quickly review some tips for monitoring and tuning invalidations in WCS.
What happens when DRS is overloaded?
If DRS is overloaded, the... [Continue Reading]