After upgrading to 6.4.2 from 6.4.1, we’ve seen replication time for a 200gb index decrease from 45 hours to 1.5 hours.
> On 7 Mar 2017, at 20:32, Ishan Chattopadhyaya <is...@apache.org> wrote: > > 7 March 2017, Apache Solr 6.4.2 available > > 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 6.4.2 is available for immediate download at: > > - > > http://lucene.apache.org/solr/mirrors-solr-latest-redir.html > > Please read CHANGES.txt for a full list of new features and changes: > > - > > https://lucene.apache.org/solr/6_4_2/changes/Changes.html > > Solr 6.4.2 contains 4 bug fixes since the 6.4.1 release: > > - > > Serious performance degradation in Solr 6.4 due to the metrics > collection. IndexWriter metrics collection turned off by default, directory > level metrics collection completely removed (until a better design is > found) > - > > Transaction log replay can hit an NullPointerException due to new > Metrics code > - > > NullPointerException in CloudSolrClient when reading stale alias > - > > UnifiedHighlighter and PostingsHighlighter bug in PrefixQuery and > TermRangeQuery for multi-byte text > > Further details of changes are available in the change log available at: > http://lucene.apache.org/solr/6_4_2/changes/Changes.html > > Please report any feedback to the mailing lists (http://lucene.apache.org/ > solr/discussion.html) > Note: The Apache Software Foundation uses an extensive mirroring network > for distributing releases. It is possible that the mirror you are using may > not have replicated the release yet. If that is the case, please try > another mirror. This also applies to Maven access.
