It is built using Apache Hadoop for hourly index updates and Apache HBase to provide random access to item information.

它使用Apache Hadoop来支持每小时进行的索引更新，使用Apache HBase对随机存取信息提供支持。

youdao

Built on top of LucidWorks Search, LucidWorks Big Data certifies and integrates all of the Apache open source components necessary to develop and manage a big data application, including Hadoop, Mahout, HBase, Zookeeper, Pig, and other software tools.

FORBES: LucidWorks: Bringing Search to Big Data