ApacheCon 2016

It has become increasingly clear in the last years that services are moving to the cloud (public, private or hybrid). Like DNS or authentication services, a robust, scalable multi-tenant messaging system is a crucial element of the cloud infrastructure. A messaging system allows services to talk to each other asynchronously, complementing the ubiquitos REST. Due to its dual framework/product nature, Apache ActiveMQ is the most viable and mature solution for messaging at scale. Coupled with other projects like Apache Karaf and its Cellar subproject featuring robust clustering capabilities, the ActiveMQ value is hard to beat. This presentation gives practical guidelines, code and a demo meant to help users deploy and manage elastic networks of brokers.

Apache Karaf Boot is a new Karaf module, dedicated to developers. It simplifies a lot the way to create projects ready to run in Karaf or even bootstrapping Karaf and following the "run everywhere" pattern.

In a world where the Internet of Things is becoming ubiquitous, provisioning software becomes more and more important. Challenges you need to deal with are not only the diversity and multitude of platforms that need to be provisioned but also the actual runtime environment and the sheer number of devices you need to manage. For example, how would you manage your software stack if the server parts run on Docker, your sensor network is running Python and clients run Android?

In this talk, we show how you can leverage Apache ACE to manage such a diverse set of devices and/or platforms. We introduce Apache ACE and go into detail on how it works under the hood and how you can use it to provision any kind of software artifact or configuration. A demonstration is given on how this would work in a concrete situation. For this talk, knowledge of Apache ACE is not a prerequisite.

Apache BookKeeper is a distributed log service, given its versatile architecture it can be used for multiple distributed services like reliable, low latency distributed storage, pub/sub, replicated state machines, coordination systems,
distributed databases, etc.

We would like to have a BoF to invite developers and users of distributed storage services and have a discussion
on what we can offer from Apache BookKeeper and also understand the needs and requirements of potential users.
We will have committers, developers and users present in this BoF.

Apache Mesos is a distributed systems kernel that manages resource usage and scheduling in large datacenters. Mesos now provides exciting features to enable the development of stateful distributed applications. Resource reservations and persistent volumes can be leveraged to produce stateful services that enjoy the scalability and reliability of the Mesos environment, but developing robust applications that make use of these features requires careful design and an awareness of the semantics involved. This talk will provide distributed application developers and datacenter operators with an overview of persistence primitives in Apache Mesos and the best practices associated with their implementation.

The Apache community creates the building blocks of software companies world wide. Developers designing those building blocks require a different mindset than developers focused on building applications. Good building blocks can be repurposed, reused, and recomposed. Good building blocks are modular. This talk focus on building good blocks in Java using current language features, frameworks (Apache Felix), and prepare for new modularity features available in Java 9. This talk will cover when it makes sense to break a project down further as well as some of the strategies and tools involved in doing so. We'll cover lessons learned I've learned doing this for clients as well as within the ASF with Apache Tika.

Finagle (Twitter's Apache-licensed RPC stack) and Apache Mesos are two core technologies used by Twitter to scale its multi-service architecture to high-volume traffic loads. In this talk, we describe how Twitter used Finagle and Mesos together to address the challenges of scaling its application. We introduce linkerd, an Apache-licensed proxy form of Finagle, which extends Finagle's operational model to non-JVM or polyglot multi-service applications. Finally, we show how linkerd can be used to "wrap" applications running in Apache Mesos to provide higher-level, service-based semantics around scalability, reliability, and fault-tolerance for multi-service or microservice applications---even in the presence of high traffic loads and unreliable hardware.