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Monitoring a production Hadoop cluster with Kubernetes

Monitoring a production Hadoop cluster with Kubernetes

Categories: DevOps & SRE | Tags: Knox, Thrift, Docker, Elasticsearch, Graphana, Kubernetes, Node.js, Prometheus, Python, Shinken, Hadoop

Monitoring a production grade Hadoop cluster is a real challenge and needs to be constantly evolving. The software we use today is based on Nagios. Very efficient when it comes to the simplest…

By Paul-Adrien CORDONNIER

Dec 21, 2018

Deploying a secured Flink cluster on Kubernetes

Deploying a secured Flink cluster on Kubernetes

Categories: Big Data | Tags: Flink, HDFS, Kafka, Elasticsearch, Encryption, Kerberos, SSL/TLS

When deploying secured Flink applications inside Kubernetes, you are faced with two choices. Assuming your Kubernetes is secure, you may rely on the underlying platform or rely on Flink native…

By David WORMS

Oct 8, 2018

Apache Metron in the Real World

Apache Metron in the Real World

Categories: Cyber Security, DataWorks Summit 2018 | Tags: Algorithms, HDFS, Kafka, NiFi, Solr, Spark, Storm, Elasticsearch, pcap, RDBMS, Metron, SQL

Apache Metron is a storage and analytic platform specialized in cyber security. This talk was about demonstrating the usages and capabilities of Apache Metron in the real world. The presentation was…

By Michael HATOUM

May 29, 2018

Essential questions about Time Series

Essential questions about Time Series

Categories: Big Data | Tags: Druid, HBase, Hive, ORC, Elasticsearch, Graphana, IOT

Today, the bulk of Big Data is temporal. We see it in the media and among our customers: smart meters, banking transactions, smart factories, connected vehicles … IoT and Big Data go hand in hand. We…

By David WORMS

Mar 19, 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

Yahoo's Vespa Engine

Yahoo's Vespa Engine

Categories: Tech Radar | Tags: Database, Elasticsearch, Search Engine, Tools

Vespa is Yahoo’s fully autonomous and self-sufficient big data processing and serving engine. It aims at serving results of queries on huge amounts of data in real time. An example of this would be…

By Arthur BUSSER

Oct 16, 2017

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