RethinkDB 1.10 發布,基于JSON的開源分布式數據庫

jopen 12年前發布 | 7K 次閱讀 RethinkDB

RethinkDB構建用于存儲JSON文檔,并能夠很容易擴展擴展到多臺機器上。它擁有一個優美的查詢語言支持真正實用的查詢如表格joins 和 group by。RethinkDB還易于安裝和學習。

簡單的編程模型:

    JSON數據模型和即時的一致性。
    分布式連接,子查詢,匯總,原子更新。
    Hadoop的風格的map / reduce。

易于管理:

    友好的WEB和命令行管理工具。
    需要照顧的機器故障和網絡中斷。
    多數據中心的復制和故障轉移。

水平的可擴展性:

    分片和復制到多個節點。
    查詢自動并行化和分發。
    通過MVCC并發無鎖操作。</div> </div> 基于JSON的開源分布式數據庫:RethinkDB 基于JSON的開源分布式數據庫:RethinkDB 基于JSON的開源分布式數據庫:RethinkDB

該版本最值得關注的改進包括支持一次通過多個值來索引一行記錄,該特性可讓查詢速度更加快速;同時改進了序列化的數值,提升了很多磁盤和網絡負載的性能。

New Features

  • Added multi-indexes (#933)
  • Added selective history deletion to the Data Explorer (#1297)
  • Made filter support the nested object syntax (#1325)
  • Added r.not_ to the Python driver (#1329)
  • The backup scripts are now installed by the Python driver (#1355)
  • Implemented variable-width object length encoding and other improvements to serialization (#1424)
  • Lowered the I/O pool threads' stack size (#1425)
  • Improved datum integer serialization (#1426)
  • Added a thin wrapper struct threadnum_t instead of using raw ints for thread numbers (#1445)
  • Re-enabled full perfmon capability (#1474)
  • </ul>

    Fixed Bugs

    • Fixed the output of rethinkdb admin help (#936, #1447)
    • make no longer runs ./configure (#979)
    • Made the Python code mostly Python 3 compatible (still a work in progress) (#1050)
    • The Data Explorer now correctly handles unexpected token errors (#1334)
    • Improved the performance of JSON parsing (#1403)
    • batched_rget_stream_t no longer uses an out-of-date interruptor (#1411)
    • The missing protobuf_implementation variable was added to the JavaScript driver (#1416)
    • Improved the error and help messages in the backup scripts (#1417)
    • r.json is no longer incorrectly marked as non-deterministic (#1430)
    • Fixed the import of rethinkdb_pbcpp in the Python driver (#1438)
    • Made some stores go on threads other than just 0 through 3 (#1446)
    • Fixed the error message when using groupBy with illegal pattern (#1460)
    • default is no longer unprintable in Python (#1476)
    • </ul> </div>
      完整介紹請看這里

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