So that we know what we'll get in the future… -Vincent
Begin forwarded message: > From: Robert Muir <[email protected]> > Subject: [ANNOUNCE] Apache Solr 4.0-alpha released. > Date: July 3, 2012 3:11:19 PM GMT+02:00 > To: [email protected], [email protected], Lucene mailing list > <[email protected]>, announce <[email protected]> > > 3 July 2012, Apache Solr™ 4.0-alpha available > The Lucene PMC is pleased to announce the release of Apache Solr 4.0-alpha. > > 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, dynamic clustering, database > integration, rich document (e.g., Word, PDF) handling, and geospatial search. > Solr is 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 4.0-alpha is available for immediate download at: > http://lucene.apache.org/solr/mirrors-solr-latest-redir.html?ver=4.0a > > See the CHANGES.txt file included with the release for a full list of > details. > > Solr 4.0-alpha Release Highlights: > > The largest set of features goes by the development code-name “Solr > Cloud” and involves bringing easy scalability to Solr. See > http://wiki.apache.org/solr/SolrCloud for more details. > * Distributed indexing designed from the ground up for near real-time > (NRT) and NoSQL features such as realtime-get, optimistic locking, and > durable updates. > * High availability with no single points of failure. > * Apache Zookeeper integration for distributed coordination and > cluster metadata and configuration storage. > * Immunity to split-brain issues due to Zookeeper's Paxos distributed > consensus protocols. > * Updates sent to any node in the cluster and are automatically > forwarded to the correct shard and replicated to multiple nodes for > redundancy. > * Queries sent to any node automatically perform a full distributed > search across the cluster with load balancing and fail-over. > > Solr 4.0-alpha includes more NoSQL features for those using Solr as a > primary data store: > * Update durability – A transaction log ensures that even uncommitted > documents are never lost. > * Real-time Get – The ability to quickly retrieve the latest version > of a document, without the need to commit or open a new searcher > * Versioning and Optimistic Locking – combined with real-time get, > this allows read-update-write functionality that ensures no > conflicting changes were made concurrently by other clients. > * Atomic updates - the ability to add, remove, change, and increment > fields of an existing document without having to send in the complete > document again. > > There are many other features coming in Solr 4, such as > * Pivot Faceting – Multi-level or hierarchical faceting where the top > constraints for one field are found for each top constraint of a > different field. > * Pseudo-fields – The ability to alias fields, or to add metadata > along with returned documents, such as function query values and > results of spatial distance calculations. > * A spell checker implementation that can work directly from the main > index instead of creating a sidecar index. > * Pseudo-Join functionality – The ability to select a set of > documents based on their relationship to a second set of documents. > * Function query enhancements including conditional function queries > and relevancy functions. > * New update processors to facilitate modifying documents prior to indexing. > * A brand new web admin interface, including support for SolrCloud. > > This is an alpha release for early adopters. The guarantee for this > alpha release is that the index > format will be the 4.0 index format, supported through the 5.x series > of Lucene/Solr, unless there > is a critical bug (e.g. that would cause index corruption) that would > prevent this. > > Please report any feedback to the mailing lists > (http://lucene.apache.org/solr/discussion.html) > > Happy searching, > > Lucene/Solr developers _______________________________________________ devs mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/devs
