From commits-return-107111-archive-asf-public=cust-asf.ponee.io@lucene.apache.org Thu Mar 14 11:37:19 2019 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id 98228180763 for ; Thu, 14 Mar 2019 12:37:17 +0100 (CET) Received: (qmail 65165 invoked by uid 500); 14 Mar 2019 11:37:11 -0000 Mailing-List: contact commits-help@lucene.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@lucene.apache.org Delivered-To: mailing list commits@lucene.apache.org Received: (qmail 64976 invoked by uid 99); 14 Mar 2019 11:37:11 -0000 Received: from Unknown (HELO svn01-us-west.apache.org) (209.188.14.144) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 14 Mar 2019 11:37:11 +0000 Received: from svn01-us-west.apache.org (localhost [127.0.0.1]) by svn01-us-west.apache.org (ASF Mail Server at svn01-us-west.apache.org) with ESMTP id D002F3A3410 for ; Thu, 14 Mar 2019 11:37:10 +0000 (UTC) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: svn commit: r1041833 [3/4] - in /websites/staging/lucene/trunk/content: ./ core/ openrelevance/ solr/ Date: Thu, 14 Mar 2019 11:37:10 -0000 To: commits@lucene.apache.org From: buildbot@apache.org X-Mailer: svnmailer-1.0.9 Message-Id: <20190314113710.D002F3A3410@svn01-us-west.apache.org> Modified: websites/staging/lucene/trunk/content/openrelevance/mailing-lists.html ============================================================================== --- websites/staging/lucene/trunk/content/openrelevance/mailing-lists.html (original) +++ websites/staging/lucene/trunk/content/openrelevance/mailing-lists.html Thu Mar 14 11:37:10 2019 @@ -169,12 +169,39 @@ h2:hover > .headerlink, h3:hover > .head } h2:hover > .headerlink, h3:hover > .headerlink, h1:hover > .headerlink, h6:hover > .headerlink, h4:hover > .headerlink, h5:hover > .headerlink, dt:hover > .elementid-permalink { visibility: visible }

LuceneTM News

+

14 March 2019 - Apache Lucene 8.0.0 and Apache Solr 8.0.0 Available

+

The Lucene PMC is pleased to announce the release of Apache Lucene 8.0.0 and Apache Solr 8.0.0

+

Lucene can be downloaded from http://lucene.apache.org/core/downloads.html +and Solr can be downloaded from http://lucene.apache.org/solr/downloads.html

+

Highlights of this Lucene release include:

+

Query execution

+

Term queries, phrase queries and boolean queries introduced new optimization that enables efficient skipping over non-competitive documents when the total hit count is not needed. Depending on the exact query and data distribution, queries might run between a few percents slower and many times faster, especially term queries and pure disjunctions.

+

In order to support this enhancement, some API changes have been made: + * TopDocs.totalHits is no longer a long but an object that gives a lower bound of the actual hit count. + * IndexSearcher's search and searchAfter methods now only compute total hit counts accurately up to 1,000 in order to enable this optimization by default. + * Queries are now required to produce non-negative scores.

+

Codecs

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    +
  • Postings now index score impacts alongside skip data. This is how term queries optimize collection of top hits when hit counts are not needed.
    • +
  • Doc values introduced jump tables, so that advancing runs in constant time. This is especially helpful on sparse fields.
    • +
  • The terms index FST is now loaded off-heap for non-primary-key fields using MMapDirectory, reducing heap usage for such fields.
    • +
+

Custom scoring

+

The new FeatureField allows efficient integration of static features such as a pagerank into the score. Furthermore, the new LongPoint#newDistanceFeatureQuery and LatLonPoint#newDistanceFeatureQuery methods allow boosting by recency and geo-distance respectively. These new helpers are optimized for the case when total hit counts are not needed. For instance if the pagerank has a significant weight in your scores, then Lucene might be able to skip over documents that have a low pagerank value.

+

Highlights of this Solr release include:

+
    +
  • Solr now uses HTTP/2 for inter-node communication
    • +
+

Being a major release, Solr 8 removes many deprecated APIs, changes various parameter defaults and behavior. Some changes may require a re-index of your content. +You are thus encouraged to thoroughly read the "Upgrade Notes" at:

+

http://lucene.apache.org/solr/8_0_0/changes/Changes.html

+

Solr 8.0 also includes many other new features as well as numerous optimizations and bugfixes of the corresponding Apache Lucene release.

1 March 2019 - Apache Lucene 7.7.1 and Apache Solr 7.7.1 Available

The Lucene PMC is pleased to announce the release of Apache Lucene 7.7.1 and Apache Solr 7.7.1

Lucene can be downloaded from http://lucene.apache.org/core/downloads.html and Solr can be downloaded from http://lucene.apache.org/solr/downloads.html

This Lucene release contains no change over Lucene 7.7.0.

-

Highlights of this Solr release include:

+

Highlights of this Solr release include: