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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 Hadoop、Zookeeper 和 Thrift 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>
- 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>
- 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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