---

This book constitutes the refereed proceedings of the ACM/IFIP/USENIX 14th International Middleware Conference, held in Beijing, China, in December 2013. The 24 revised full papers presented were carefully reviewed and selected from 189 submissions. The papers cover a wide range of topics including design, implementation, deployment and evaluation of middleware for next-generation platforms such as cloud computing, social networks and large-scale storage and distributed systems. The middleware solutions introduced provide features such as availability, efficiency, scalability, fault-tolerance, trustworthy operation and support security and privacy needs.

---

Fast Cast: A Throughput- and Latency-Efficient Total Order Broadcast Protocol.- VICINITY: A Pinch of Randomness Brings out the Structure.- Experiences with Fault-Injection in a Byzantine Fault-Tolerant Protocol.- Splay Net: Distributed User-Space Topology Emulation.- Assured Cloud-Based Data Analysis with Cluster BFT.- Flow Flex: Malleable Scheduling for Flows of MapReduce Jobs.- DVFS Aware CPU Credit Enforcement in a Virtualized System.- Elastic Remote Methods.- Atmosphere: A Universal Cross-Cloud Communication Infrastructure.- VMAR: Optimizing I/O Performance and Resource Utilization in the Cloud.- I2Map: Cloud Disaster Recovery Based on Image-Instance Mapping.- Cross-Tier Application and Data Partitioning of Web Applications for Hybrid Cloud Deployment.- Sprinkler - Reliable Broadcast for Geographically Dispersed Datacenters.- Transactional Failure Recovery for a Distributed Key-Value Store.- Views and Transactional Storage for Large Graphs.- Efficient Batched Synchronization in Drop box-Like Cloud Storage Services.- Back to the Future: Using Magnetic Tapes in Cloud Based Storage Infrastructures.- Efficient Node Bootstrapping for Decentralised Shared-Nothing Key-Value Stores.- Testing Idempotence for Infrastructure as Code.- Self-scalable Benchmarking as a Service with Automatic Saturation Detection.- Ditto - Deterministic Execution Replayability-as-a-Service for Java VM on Multiprocessors.- DynaSoRe: Efficient In-Memory Store for Social Applications.- O2SM: Enabling Efficient Offline Access to Online Social Media and Social Networks.- Anony Likes: Anonymous Quantitative Feedback on Social Networks.- Peer-to-Peer Keyword Search: A Retrospective.

---