RethinkDB 2.1.3 发布，分布式数据库
RethinkDB 2.1.3 发布，此版本是个 bug 修复版本。
更新内容如下：
兼容性
-
RethinkDB 2.1.3 servers cannot be mixed with servers running RethinkDB 2.1.1 or earlier in the same cluster
Bug 修复
-
Fixed a data corruption bug in the b-tree implementation ( #4769 )
-
Fixed the
ssloption in the JavaScript driver ( #4786 ) -
Made the Ruby driver compatible with Ruby on Rails 3.2 ( #4753 )
-
Added the
backports.ssl_match_hostnamelibrary to the Python driver package ( #4683 ) -
Changed the update check to use an encrypted https connection ( #3988 , #4643 )
-
Fixed access to
httpssources inr.httpon OS X ( #3112 ) -
Fixed an
Unexpected exceptionerror ( #4758 ) -
Fixed a
Guarantee failed: [pair.second]crash that could occur during resharding ( #4774 ) -
Fixed a bug that caused some queries to not report an error when interrupted ( #4762 )
-
Added a new
"_debug_recommit"recovery option toemergency_repair( #4720 ) -
Made error reporting in the Python driver compatible with
celeryandnose( #4764 ) -
Changed the handling of outdated indexes from RethinkDB 1.13 during an import to no longer terminate the server ( #4766 )
性能提升
-
Improved the latency when reading from a system table in
r.db('rethinkdb')while the server is under load ( #4773 ) -
Improved the parallelism of JSON encoding on the server to utilize multiple CPU cores
-
Refactored JSON decoding in the Python driver to allow the use of custom JSON parsers and to speed up pseudo type conversion ( #4585 )
-
Improved the prefetching logic in the Python driver to increase the throughput of cursors
-
Changed the Python driver to use a more efficient data structure to store cursor results ( #4782 )
下载： https://github.com/rethinkdb/rethinkdb/archive/v2.1.3.zip
RethinkDB 设计用来存储 JSON 文档的分布式数据库，可通过简单操作实现多机分布式存储。支持表的联合和分组查询。
特点：
简单编程模型
-
JSON 数据模型和一致性
-
分布式联合查询、子查询、聚合查询和原子更新操作
-
Hadoop 风格的 map/reduce.
轻松管理
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提供友好的 Web 和命令行管理工具
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服务器和网络故障时的谨慎处理
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多数据中心复制和故障转移
水平伸缩
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数据分片和复制到多个节点
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自动化并行查询和分布式查询
-
通过 MVCC 并发实现无锁操作
正文到此结束
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