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Terracotta cloud tools are:
Terracotta cloud tools provide a simple way to take standard enterprise Java apps and scale them out in cloud environments. The tools manage all the aspects of server creation, software provisioning, and configuration of the Terracotta scaling layer. The Terracotta scaling infrastructure manages common scale and HA concerns such as web sessions clustering, database offload through caching (using Ehcache - both as Hibernate 2nd level cache, and as a direct cache), and the clustering of common application services like the Quartz job scheduler.