是否可以在hdfs上存储mongodb数据

Question

In my project, I'm challenging with data storage method. Firstly, in my project, there are streaming data in JSON format and most suitable db is MongoDB. I have to analyze data with Hadoop or Spark.

So, my conflict starts here: Can I store MongoDB collections in HDFS or must MongoDB and HDFS storage units be different? It is an important issue for my decision. Must I use Hadoop and MongoDB in same disk units or separate units?

Answer 1

由于存储方法，安全策略实现和存储机制本身不同，因此它们必须是不同的单元。