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ydb's Introduction

延云千亿大数据实时解决方案


大索引技术


为什么要使用大索引?使用后会有什么好处?
1. 索引大幅度的加快数据的检索速度。
2. 索引可以显著减少查询中分组、统计和排序的时间。
3. 索引大幅度的提高系统的性能和响应时间,从而节约资源。
正因为大索引技术可以显著的降低大数据的处理成本,显著提高大数据系统的执行效率,延云自主研发了自己的分布式大索引系统YDB。

YDB特性

  1. 千亿规模
    在真实业务环境上验证,每天可达千亿增量,总数据量可达几万亿 。
  2. 低延迟
    数据从产生到能查询,根据配置的不同一般在十几秒到几分钟。
  3. 查询快-高性能
    常规查询毫秒级响应 常规统计秒级响应。
  4. 实时搜索
    长文本字段可以根据关键词进行全文检索模糊匹配,并且有较高的性能。
  5. 多维钻取
    支持上万个维度,任意组合查询,任意维度组合过滤、分组,统计、排序。
  6. 容灾可靠
    索引存储在分布式文件系统中,不因硬件的损坏或异常宕机而丢失数据。
  7. Sql Api:
    更易于上手与使用。

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