-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 23 January 2016 - Apache Solr™ 6.4.0 Available The Lucene PMC is pleased to announce the release of Apache Solr 6.4.0. Solr is the popular, blazing fast, open source NoSQL search platform from the Apache Lucene project. Its major features include powerful full-text search, hit highlighting, faceted search and analytics, rich document parsing, geospatial search, extensive REST APIs as well as parallel SQL. Solr is enterprise grade, secure and highly scalable, providing fault tolerant distributed search and indexing, and powers the search and navigation features of many of the world's largest internet sites. Solr 6.4.0 is available for immediate download at: http://lucene.apache.org/solr/mirrors-solr-latest-redir.html Highlights of this Solr release include: Streaming: * Addition of a HavingStream to Streaming API and Streaming Expressions * Addition of a priority Streaming Expression * Streaming expressions now support collection aliases Machine Learning: * Configurable Learning-To-Rank (LTR) support: upload feature definitions, extract feature values, upload your own machine learnt models and use them to rerank search results. Faceting: * Added "param" query type to facet domain filter specification to obtain filters via query parameters * Any facet command can be filtered using a new parameter filter. Example: { type:terms, field:category, filter:"user:yonik" } Scripts / Command line: * A new command-line tool to manage the snapshots functionality * bin/solr and bin/solr.cmd now use mkroot command SolrCloud / SolrJ * LukeResponse now supports dynamic fields * Solrj client now supports hierarchical clusters and other topics marker * Collection backup/restore are extensible. Security: * Support Secure Impersonation / Proxy User for Solr authentication * Key Store type can be specified in solr.in.sh file for SSL * New generic authentication plugins: 'HadoopAuthPlugin' and 'ConfigurableInternodeAuthHadoopPlugin' that delegate all functionality to Hadoop authentication framework Query / QueryParser / Highlighting: * A new highlighter: The Unified Highlighter. Try it via hl.method=unified; many popular highlighting parameters / features are supported. It's the highest performing highlighter, especially for large documents. Highlighting phrase queries and exotic queries are supported equally as well as the Original Highlighter (aka the default/standard one). Please use this new highlighter and report issues since it will likely become the default one day. * Leading wildcard in complexphrase query parser are now accepted and optimized with the ReversedWildcardFilterFactory when it's provided Metrics: * Use metrics-jvm library to instrument jvm internals such as GC, memory usage and others. * A lot of metrics have been added to the collection: index merges, index store I/Os, query, update, core admin, core load thread pools, shard replication, tlog replay and replicas * A new /admin/metrics API to return all metrics collected by Solr via API. Misc changes: * The new config parameter 'maxRamMB'can now limit the memory consumed by the FastLRUCache * A new document processor 'SkipExistingDocumentsProcessor' that skips duplicate inserts and ignores updates to missing docs * FieldCache information fetched via the mbeans handler or seen via the UI now displays the total size used. * A new config flag 'enable' allows to enable/disable any cache Please note, this release cannot be built from source with Java 8 update 121, use an earlier version instead! This is caused by a bug introduced into the Javadocs tool shipped with that update. The workaround was too late for this Lucene release. Of course, you can use the binary artifacts. See the Solr CHANGES.txt files included with the release for a full list of details. Thanks, Jim Ferenczi -----BEGIN PGP SIGNATURE----- Version: Mailvelope v1.6.5 Comment: https://www.mailvelope.com wsFcBAEBCAAQBQJYhcn7CRBwe32fb9uBBQAAjCcQAJ6w5tM1aES5jRRBPM2j KaY6yT0mwpIxzCOLEklIEJZxfXK76yOAP8kOhbLUPsdfucR9lMbul8fqkKpB ARLkNz/Q5ZSGpWm+PA3TFJyv3edh9PxbdezhOeqamSLyKwU4U9tEgo5n4k2U S90BVDvv/a1B5MIE2g3x5zYTCVQ1feQyo8Zr3VNH98LwUhf/kAnJz5kZWRXC Bfuf0T/6HHela6mIpEAkwcJuZ/MMxkB31Ukut40rdIDJOXw/qRI3SrOeJbvA oXZTaPOGg2XjM4xPOSJEREt6SDSw6osd8IsbxWsY54Gwv2KqdXhd6h26mThq 81m8YJcnMzK9itliIJSQufYBwfEEeCEpxZ9YK/JGqAsfbVogIUMxjNBzXW5g QZAXtclVDTr0z3jVZtjj4feY+7pe4GFoDnGLfn5oWRT8SkUSB4oKqCwZIzEf Q9bhEi4pF70g3rwE+D+CUN/ypTfTAObb85V2WwSl3gecFz8I2cPcLjKMbJZJ j4pGRnjTwGY79OfZWUAcjdsrVK7cSm86mmaPoj2C82KKxF2yVPyf4Qg0uX1d iTkp1qmopO8eguxJbw+oLu4WTBuZIxR8fi+wRUoenxsGcl4sGFxhjmS4Zraf hSLLdn8OwxGIOq0aDMQvEqrtWMV7ExFwxWZrhG98Wcji/Bxmab4K/0w8nw9e qBaI =d/yg -----END PGP SIGNATURE-----