ApacheCon North America 2014

Apache Airavata is service-based software for managing the remote execution of scientific and other applications on computing clouds, supercomputers, clusters, and computational grids.  Airavata is composed of several components (Registry, Orchestrator, Application Factory, Workflow Interpreter, Messenger, Credential Store) that implement these capabilities.  We are in the process of rearchitecting Airavata software to serve as the basis of a multi-tenanted, elastically scalable, fault-tolerant Platform as a Service for our community. This introduces several challenges to our current architecture as well as opportunities to leverage and collaborate with other Apache projects.  We summarize best practices that we have learned for managing multiple components with complicated state in elastic virtual machine environments.