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我已经安装了 Atlas、Hive 和 Hadoop 并正确配置了它们。但是我想知道导入元数据后元数据存储在哪里?

根据 Atlas 的一些文档,它说元数据将存储在 Titan 图形存储库中。但是,根据 Hive 的一些文档,它表明元数据将存储在 RDBMS 中,例如 MySql。

如果我同时安装 Atlas 和 Hive,元数据将具体存储在哪里?

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2 回答 2

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Though the existing answer is not wrong, I think it is good to point out that the asker seems to be mixing up two kinds of metadata.

  1. Hive metadata: This is indeed stored in a relational DB, with MySQL being the default
  2. Atlas metadata: This is stored in HBase (Titan was backed by Hbase for older versions?)

An example of Hive metadata is 'what are the columns'

An example of Atlas metdata is 'how did I tag column a'


So if you install both Hive and Atlas, there will be two kinds of metadata, and this will be stored in the mentioned spots.

于 2019-05-02T22:15:55.843 回答
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元数据存储在 HBase 数据库中。HBase 数据库由 Apache Atlas 自己维护。

于 2016-09-05T10:50:15.880 回答