REST

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Apache Knox made easy!

Apache Knox made easy!

Categories: Big Data, Cyber Security, Adaltas Summit 2018 | Tags: Ambari, Hive, Knox, Ranger, Shiro, Solr, JDBC, Kerberos, LDAP, Active Directory, REST, SSL/TLS, Hadoop, SSO

Apache Knox is the secure entry point of a Hadoop cluster, but can it also be the entry point for my REST applications? Apache Knox overview Apache Knox is an application gateway for interacting in a…

By Michael HATOUM

Feb 4, 2019

Jumbo, the Hadoop cluster bootstrapper

Jumbo, the Hadoop cluster bootstrapper

Categories: Infrastructure | Tags: Ansible, Ambari, Automation, HDP, REST, Vagrant

Introducing Jumbo, a Hadoop cluster bootstrapper for developers. Jumbo helps you deploy development environments for Big Data technologies. It takes a few minutes to get a custom virtualized Hadoop…

By Gauthier LEONARD

Nov 29, 2018

Main advantages of GraphQL as an alternative to REST

Main advantages of GraphQL as an alternative to REST

Categories: Front End | Tags: API, GraphQL, GRPC, JSON, Node.js, Registry, REST

GraphQL is based on a simple idea, moving the assembly of a request from the server to the client. The client sees the overall strongly-typed schema instead of multiple REST endpoints and he builds…

By David WORMS

Nov 27, 2018

Hadoop cluster takeover with Apache Ambari

Hadoop cluster takeover with Apache Ambari

Categories: Big Data, DevOps & SRE, Adaltas Summit 2018 | Tags: Ambari, Automation, HDP, iptables, Kerberos, Nikita, Node.js, REST, Systemd

We recently migrated a large production Hadoop cluster from a “manual” automated install to Apache Ambari, we called this the Ambari Takeover. This is a risky process and we will detail why this…

By Schoukroun LEO

Nov 15, 2018

Present and future of Hadoop workflow scheduling: Oozie 5.x

Present and future of Hadoop workflow scheduling: Oozie 5.x

Categories: Big Data, DataWorks Summit 2018 | Tags: Hive, Oozie, Sqoop, CDH, HDP, REST, Hadoop

During the DataWorks Summit Europe 2018 in Berlin, I had the opportunity to attend a breakout session on Apache Oozie. It covers the new features released in Oozie 5.0, including future features of…

By Schoukroun LEO

May 23, 2018

Execute Python in an Oozie workflow

Execute Python in an Oozie workflow

Categories: Data Engineering | Tags: Oozie, Elasticsearch, Python, REST

Oozie workflows allow you to use multiple actions to execute code, however doing so with Python can be a bit tricky, let’s see how to do that. I’ve recently designed a workflow that would interact…

By César BEREZOWSKI

Mar 6, 2018

Ambari - How to blueprint

Ambari - How to blueprint

Categories: Big Data, DevOps & SRE | Tags: Ambari, Ranger, Automation, CDH, DevOps, HDP, Operation, REST

As infrastructure engineers at Adaltas, we deploy Hadoop clusters. A lot of them. Let’s see how to automate this process with REST requests. While really handy for deploying one or two clusters, the…

By Joris RUMMENS

Jan 17, 2018

Apache Thrift vs REST

Apache Thrift vs REST

Categories: DevOps & SRE, Open Source Summit Europe 2017 | Tags: Thrift, GRPC, HTTP, JSON, REST

Adaltas recently attended the Open Source Summit Europe 2017 in Prague. I had the opportunity to follow a presentation made by Randy Abernethy and Jens Geyer of RM-X, a cloud native consulting company…

By Schoukroun LEO

Oct 28, 2017

HDP cluster monitoring

HDP cluster monitoring

Categories: Big Data, DevOps & SRE, Infrastructure | Tags: Alert, Ambari, HDP, Metrics, Monitoring, REST

With the current growth of BigData technologies, more and more companies are building their own clusters in hope to get some value of their data. One main concern while building these infrastructures…

By Joris RUMMENS

Jul 5, 2017

Node HBase, a NodeJs client for Apache HBase

Node HBase, a NodeJs client for Apache HBase

Categories: Big Data, Node.js | Tags: HBase, Big Data, Node.js, REST

HBase is a “column familly” database from the Hadoop ecosystem built on the model of Google BigTable. HBase can accommodate very large volumes of data (tera or peta) while maintaining high…

By David WORMS

Nov 1, 2010

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