HBase-based Internet-of-things big data storing and accessing method
An access method and big data technology, applied in database models, relational databases, digital data processing, etc., can solve problems such as high costs, many user restrictions, and single query methods, and achieve efficient storage and scalability. , taking into account the effect of data balance
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[0044] A kind of HBase-based Internet of Things big data access method of the present invention comprises:
[0045] 1) Create an HBase table according to the following storage rules
[0046]Create an HBase table for each type of terminal, set the name of the column family in each table to "1", the name of the column qualifier to cmdID, the content of the uploaded message body to be value (as shown in Table 1), and specify the HBase Region The split policy is "KeyPrefixRegionSplitPolicy", and the length of the prefix is 2.
[0047] Table I
[0048]
[0049] The rowkey generation rules for each piece of data stored in HBase (such as figure 1 shown) as follows:
[0050] a. The selection of the modulus value is closely related to the number of regions in the cluster and will directly affect the scalability of the cluster. Here we can define the size of the modulus value as 32767 to ensure that the generated prefix is 2 bytes;
[0051] b. Calculate the corresponding hash...
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