This time with blog post: https://blogs.apache.org/apex/entry/apache_apex_malhar_3_5
Would be good to see more posts. I can add folks to the apex space, let me know if you want to author something. Thomas On Mon, Sep 5, 2016 at 5:42 PM, Thomas Weise <[email protected]> wrote: > Dear Community, > > The Apache Apex community is pleased to announce release 3.5.0 of the > Malhar library. > > The release resolved 63 JIRAs and comes with exciting new features and > enhancements, including: > > - High level Java stream API now supports stateful transformations with > Apache Beam style windowing semantics. The demo package ( > https://github.com/apache/apex-malhar/tree/v3.5.0/demos/highlevelapi) has > examples for usage of the API and an earlier presentation is at > http://www.slideshare.net/ApacheApex/java-high-level-stream-api > > - Improvements to underlying state management components for windowing, > ease of use in custom operators and incremental state saving. Work is > underway to take this further in the next release, along with benchmarking > for key cardinality and throughput. > > - Deduper solves a frequent task in processing stream data, to decide > whether a given record is a duplicate or not. The documentation explains > this in detail: http://apex.apache.org/docs/malhar/operators/deduper > > - JDBC poll operator, another operator frequently required in Apex use > cases. The operator can function as bounded or unbounded source, is > idempotent for exactly-once processing and partitionable. An example can be > found at https://github.com/DT-Priyanka/examples/tree/SPOI- > 8548-jdbc-poller-example/tutorials/jdbcIngest > > - Enricher that essentially joins a stream with a lookup source can can > operate on any POJO object. The user can solve this through configuration > and does not need to write code for the operator. See documentation and the > example linked from there: http://apex.apache.org/docs/ > malhar/operators/enricher/ > > There are more features, enhancements and fixes is this release, see > https://s.apache.org/5vQi for full changes. > > Apache Apex is an enterprise grade native YARN big data-in-motion platform > that unifies stream and batch processing. Apex was built for scalability > and low-latency processing, high availability and operability. > > Apex provides features that similar platforms currently don’t offer, such > as fine grained, incremental recovery to only reset the portion of a > topology that is affected by a failure, support for elastic scaling based > on the ability to acquire (and release) resources as needed as well as the > ability to alter topology and operator properties on running applications. > > Apex has been developed since 2012 and became ASF top level project earlier > this year, following 8 months of incubation. Apex early on brought the > combination of high throughput, low latency and fault tolerance with strong > processing guarantees to the stream data processing space and gained > maturity through important production use cases at several organizations. > See the powered by page and resources on the project web site for more > information: > > http://apex.apache.org/powered-by-apex.html > http://apex.apache.org/docs.html > > The Apex engine is supplemented by Malhar, the library of pre-built > operators, including adapters that integrate with many existing > technologies as sources and destinations, like message buses, databases, > files or social media feeds. > > An easy way to get started with Apex is to pick one of the examples as > starting point. They cover many common and recurring tasks, such as data > consumption from different sources, output to various sinks, partitioning > and fault tolerance: > > https://github.com/DataTorrent/examples/tree/master/tutorials > > Apex Malhar and Core (the engine) are separate repositories and releases. > We expect more frequent releases of Malhar to roll out new connectors and > other operators based on a stable engine API. This release 3.5.0 works on > existing Apex Core 3.4.0. Users only need to upgrade the Maven dependency > in their project. > > The source release can be found at: > > http://www.apache.org/dyn/closer.lua/apex/apache-apex-malhar-3.5.0/ > > or visit: > > http://apex.apache.org/downloads.html > > We welcome your help and feedback. For more information on the project and > how to get involved, visit our website at: > > http://apex.apache.org/ > > Regards, > The Apache Apex community >
