MongoDB 3.1.9 发布,此版本是个开发版本,不建议在生产环境使用。
新特性:
– Improved high-availability: config servers as replica sets and faster elections
 – WiredTiger as the default storage engine
 – Document validation rules
 – Partial indexes
 – Encryption at rest
 – SpiderMonkey as the Javascript engine
 – Multilingual case-sensitive full-text search and improved Unicode text search support
 – Aggregation and query optimizer improvements, including a sampling operator and outer left joins
 – Network stack improvements
 – Tools improvements
bug 修复:
– SERVER-533: Aggregation stage to randomly sample documents
 – SERVER-1448: Host sharding config data on a replica set
 – SERVER-10225: Replica set failover speed improvement
 – SERVER-15176: New commands for find and getMore
 – SERVER-17861: Change the default storage engine to WiredTiger
 – SERVER-17991: Encrypted Storage Engine Enterprise – Single system key
 – SERVER-18624: listCollections command should not be O(n^2) on MMAPv1
 – SERVER-20159: Out of memory on index build during initial sync even with low cacheSize parameter
 – SERVER-20339: Make NetworkInterfaceASIO the default factory
 – TOOLS-916: Mongo export throws reflect.Value.Type errors









