Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex distributed systems where failure is inevitable.
Ribbon is a Inter Process Communication (remote procedure calls) library with built in software load balancers. The primary usage model involves REST calls with various serialization scheme support.
StreamSets Data Collector - Continuous big data and cloud platform ingest infrastructure
Rest.li is a REST+JSON framework for building robust, scalable service architectures using dynamic discovery and simple asynchronous APIs.
Gobblin is a distributed big data integration framework (ingestion, replication, compliance, retention) for batch and streaming systems. Gobblin features integrations with Apache Hadoop, Apache Kafka, Salesforce, S3, MySQL, Google etc.
Java/Scala Examples from the book - Akka Essentials
Lightweight open-source framework for developing microservices using standard Java EE technologies and migrating Java EE to cloud-native architecture.