Ensuring High-Performance of Mission-Critical Java Applications in Multi-tenant Cloud Platforms

Cloud Computing promises a cost-effective and administration-effective solution to the traditional needs of computing resources. While bringing efficiency to the users thanks to the shared hardware and software, the multi-tenency characteristics also bring unique challenges to the backend cloud platforms. In particular, the JVM mechanisms used by Java applications, coupled with OS-level features, give rise to a set of problems that are not present in other deployment scenarios. In this work, we consider the problem of ensuring high-performance of mission-critical Java applications in multi-tenant cloud environments. Based on our experiences with Linkedin´s platforms, we identify and solve a set of problems caused by multi-tenancy. We share the lessons and knowledge we learned during the course.