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Hi I get a look in some scientific data stored in HDF5 format and I was wondering if there is any NoSQl solution that will reach the same performance in read/write as HDF5 .

The data of my example use a tree architecture ( /root then /root/key then /root/key/data_key ) so is it possible to find an open source NOSQl solution that use double key querying (Oracle NoSQL offer that possibility with a primary and minor key )?

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