Greeting fellow graphistas, Keeping up with the release schedule, today we present the fourth milestone towards the 1.3 “Abisko Lampa” version of Neo4j. The most important feature of this release is of course the expansion of the storage layer to allow for even more entities, but also includes improvements on the testing methodology used for Windows builds and the REST interface for Indexing operations. As always, extended details are available in the announcement post, reachable at
http://blog.neo4j.org/2011/03/neo4j-13-abisko-lampa-m04-size-really.html There you can read a comprehensive description of the new features, however a special mention must be made to the new store format. This milestone of Neo4j brings with it an updated store version that allows for an 8x increase in the possible number of Nodes and Relationships and 16x increase for the number of Properties. All this happens without increasing the size of the database so you can go right ahead and upgrade, certain in the knowledge that everything will be done in place. A few words of caution are in order, though. An upgrade will not happen unless you explicitly request it - just pass in the configuration parameter “allow_store_upgrade” as “true” - otherwise an exception will be thrown that advises you to do just that and your store will be left untouched. There are some additional requirements for the upgrade to succeed, such as less than 65536 RelationshipTypes stored, but if you do not satisfy those the upgrade procedure will inform you of what the exact problem is and leave your store untouched. Finally, note that after a successful upgrade your database will be unreadable by previous versions. So keep in mind that while safe, this is a one way procedure. You can find more details on the subject at http://docs.neo4j.org/chunked/milestone/deployment-upgrading.html We invite you to try out these new features and provide us with your ever valuable feedback. cheers, CG _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
