Alpha3 of ArangoDB 3.2: Support for Distributed Graph Processing

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The next alpha release of the upcoming ArangoDB 3.2 is available for testing. You can download and install alpha3 here.

Moving forward

As ArangoDB 3.2 will include several new features and improvements, we realized that the release model that we currently follow has room for improvement. Going forward we will introduce milestone releases with ArangoDB 3.3. For this major release you will see a bit more alphas. You can read detailed info about the new structure model here.

Pregel computing model

In this alpha we introduce support for incremental graph processing algorithms in a single mode server as well as in the cluster. Read more

Introducing milestone release model and why is it better

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When developing ArangoDB, we want to share with you new features as early as possible. For example, the pregel implementation that will become part of ArangoDB 3.2 was ready for testing weeks before the release date of the first beta release and the final release of 3.2.

Therefore we decided to create intermediate releases, called alpha releases, which contain new feature as early as they became stable. The benefits for the community and also for our developers team are: Read more

arangochair – a tool for listening to changes in ArangoDB

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The ArangoDB team gave me an opportunity to write a tutorial about arangochair. Arangochair is the first attempt to listen for changes in the database and execute actions like pushing a document to the client or execute an AQL query. Currently it is limited to single nodes.

This tutorial is loosely based on the example at baslr/arangochair-serversendevents-demo

arangochair is a Node.js module hosted on npm which make it fairly easy to install. Just run
npm install arangochair and its installed. Read more

Alpha2 of the upcoming ArangoDB 3.2 release

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The official ArangoDB 3.2 release is almost around the corner. In the meantime, you can play around and test some of the upcoming new features as they come along. The alpha2 version of the upcoming ArangoDB 3.2 is available for testing and can be downloaded here. If you already have ArangoDB installed, please remember to backup your data and run an upgrade after installing the alpha2 release. Note that this version is not suitable for production usage and is supplied only for testing purposes.

Not getting into too much detail yet – one major change in ArangoDB 3.2 is that it will contain two storage engines. The current storage engine based on memory mapped files and a new one backed by RocksDB. This alpha2 release contains some steps towards this goal, as well as independent improvements and previews of new features. Read more

arangoexport – a tool for exporting data from ArangoDB

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With the release of the initial alpha of ArangoDB version 3.2 we also include the preview of the new export tool arangoexport. Alpha2 of ArangoDB 3.2 can be downloaded here. An export functionality was initially requested by one of our community members to view an ArangoDB graph view the Cytoscape visualizer.

Arangoexport is capable of exporting a graph or certain collections of a graph to xgmml, Cytoscape’s graph format. But arangoexport is not limited to this. It can also generate JSON or JSONL data exports of arbitrary collections. Read more

Starting an ArangoDB cluster the easy way

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Recently, we have got a lot of feedback about the fact that standing up an ArangoDB cluster “manually” is an awkward and error-prone affair. We have been aware of this for some time, but always expected that most users running ArangoDB clusters would do so on Apache Mesos or DC/OS, where deployment is a breeze due to our ArangoDB framework.

However, for various valid reasons people do not want to use Apache Mesos and thus are back to square one with the problem of deploying an ArangoDB cluster without Apache Mesos.

Manual cluster set-up

So we have listened to this, and have looked what other distributed databases offer, and have put together a tool called arangodb (as opposed to arangod) to help you. It essentially gives you the following experience: Read more

ArangoDB 3.1 – A Solid Ground to Scale part II

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It’s not that long ago since we released ArangoDB 3.0 in which we introduced our binary storage format VelocyPack, the ArangoDB Agency for a self-managing cluster and the first persistent index by implementing Facebooks RocksDB. With all that we laid the foundation for a solid ground to scale with all three data-models.

With today’s ArangoDB 3.1 release we take things a few steps further and make cluster usage of ArangoDB more performant and convenient. Get ArangoDB 3.1.

General upgrades in 3.1

  • Performance boost with our new boost-ASIO server infrastructure
  • Performance boost by overhauling the ArangoDB query optimizer
  • Improved internal abstraction for storage-engines as a preparation for MVCC and pluggable storage-engines
  • VelocyPack over HTTP: Use our binary storage format VelocyPack over HTTP
  • VelocyStream: for high performance needs you can now directly stream VelocyPack. This is already implemented in our Java driver (all other drivers maintained by ArangoDB will follow soon).

Read more

ArangoDB 3.1 Enterprise Edition – A Solid Ground to Scale with Graphs

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In addition to our community version of ArangoDB 3.1 we are excited to release our first Enterprise Edition today. The Enterprise Editions of ArangoDB focuses on enterprise-scale problems and provides useful features to meet the requirements of enterprise customers. You can download a free evaluation-only version here: Download Enterprise Edition. ArangoDB Enterprise Edition also comes with the Enterprise subscription, including comprehensive support SLA.

This first ArangoDB Enterprise Edition includes three major features:

  • SmartGraphs: Scale with graphs to a cluster and stay performant. With SmartGraphs you can use the “smartness” of your application layer to shard your graph efficiently to your machines and let traversals run locally
  • Encryption Control: Choose your level of SSL encryption
  • Auditing: Keep a detailed log of all the important things that happened in ArangoDB

Read more

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