Our first Meetup in Lausanne. More details coming soon ... Schedule • 19:00 Welcome, Networking • 19:30 How to get a stable Elasticsearch cluster in high-traffic website? (Camilo Sierra) • 20:15 The Use of Elasticsearch in the Context of Library Systems (Johnny Mariéthoz) • 20:45 Networking, Beer, Snacks How to get a stable Elasticsearch cluster in high-traffic website? by Camilo Sierra The presentation will show how to move from an unstable and inefficient cluster by mainly using data, client/master nodes, tuning configuration and better use of indexes and types. The Use of Elasticsearch in the Context of Library Systems by Johnny Mariéthoz RERO, the Library Network of Western Switzerland, provides several library-oriented web and non-web services to its members. In 2013, we felt the need for a more powerful search engine for our digital library (RERO DOC). This service (<a>http://doc.rero</a>.ch) is based on an open source product called Invenio (http://invenio-software.org). After several months of integration, elasticsearch enabled us to introduce new features such as hierarchical facets and search term highlighting. Since then, this tool has been used for other purposes in our organization, such as log analysis and web site usage statistics. This presentation explains how elasticsearch has been successfully integrated into our systems. With the launch of a completely rewritten version of Invenio (version 3), new tools such as elasticsearch, JSON, JSON-Schema and JSON-LD are at the center of our future digital library data model.