Antonios Giannopoulos

Antonios Giannopoulos

Antonios Giannopoulos

Senior Database Administrator , ObjectRocket

Biography:

I am working as Senior NoSQL Database Administrator at ObjectRocket supporting thousands of MongoDB installations over the past 4 years. I have 16 years experience in databases and system engineering. I really enjoy challenges in sharding and schema design and love migrations from Relational to NoSQL world.


All Sessions

ElasticSearch 101

Elasticsearch is well known as a highly scalable search engine that stores data in a structure optimized for language based searches but its capabilities and use cases don't stop there. In this tutorial, I'll give you a hands-on introduction to Elasticsearch and give you a glimpse at some of the fundamental concepts.
Database administration is challenging, and Elasticsearch is not an exception to that rule. In this tutorial, we will cover various administrative topics like Installation and Configuration, Cluster/Node management, Indexes management and Monitoring Cluster Health which will help you. Building applications on top of an Elasticsearch are also challenging and raise concerns about schema design. In this tutorial, we will cover developer-oriented topics like Mappings and Analysis, Aggregations and Schema Design that will help you build a robust application on top of Elasticsearch.
There will be lab sessions at the end of some chapters so please have your laptops with you.

Migration to MongoDB 4.0 from a previous version

Every new version of MongoDB comes with exciting new features and a lot of improvements and version 4.0 couldn't be an exception to this rule. An upgrade from previous versions will unlock long waiting features like transactions but at the same time without proper planning could be catastrophic for your organization.

This presentation will guide you through the stapes for planning and implementing an upgrade to MongoDB 4.0. We will examine how MongoDB 4.0 affects your organization ecosystem and what changes might be necessary prior to the upgrade. We will demonstrate the upgrade steps with a detailed rollback plan. Finally, we will cover some post-upgrade considerations that will allow you to release the power of MongoDB 4.0.

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