Apache Accumulo 1.8.0 发布,K/V 存储方案

来源: 投稿
2016-09-08

Apache Accumulo 1.8.0 发布了,Apache Accumulo 是一个可靠的、可伸缩的、高性能的排序分布式的 Key-Value 存储解决方案,基于单元访问控制以及可定制的服务器端处理。使用 Google BigTable 设计思路,基于 Apache HadoopZookeeperThrift 构建。

主要改进:

  • Speed up WAL roll overs

  • User level API for RFile

  • Suspend Tablet assignment for rolling restarts

  • Run multiple Tablet Servers on one node

  • Rate limiting Major Compactions

  • Table Sampling

  • Default port for Monitor changed to 9995

其他改进:

  • ACCUMULO-1055 Configurable maximum file size for merging minor compactions

  • ACCUMULO-1124 Optimization of RFile index

  • ACCUMULO-2883 API to fetch current tablet assignments

  • ACCUMULO-3871 Support for running integration tests in MapReduce

  • ACCUMULO-3920 Deprecate the MockAccumulo class and remove usage in our tests

  • ACCUMULO-4339 Make hadoop-minicluster optional dependency of acccumulo-minicluster

  • ACCUMULO-4318 BatchWriter, ConditionalWriter, and ScannerBase now extend AutoCloseable

  • ACCUMULO-4326 Value constructor now accepts Strings (and Charsequences)

  • ACCUMULO-4354 Bump dependency versions to include gson, jetty, and sl4j

  • ACCUMULO-3735 Bulk Import status page on the monitor

  • ACCUMULO-4066 Reduced time to processes conditional mutations.

  • ACCUMULO-4164 Reduced seek time for cached data

下载地址:https://accumulo.apache.org/downloads/

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