This talk was given at the Elastic meetup in Milan on February 5th 2016. It is about the improvements released with Elasticsearch 2.0, 2.1 and 2.2, as well as the improvements coming with the next major version.
dots • Full name references only • No type name prefix • Mappings at index level • Cannot be deleted • Names cannot start with a dot https://www.elastic.co/blog/great-mapping-refactoring
• Detailed query profiling • More to come • 50% faster indexing • 20-50% faster geo queries • Half disk and heap usage • Permissions lock-down • Whitelist of classes to load
Ability to unset a setting • Search request parsing on the coordinating node • Unblocks request caching for time based indices • Query terms get indexed • Percolate api becomes a query Search internals