Fusionlnsight HD uses HBase client to write 10 pieces of data in batches.
A Regionserver node contains 2 Regions of the table, A and B respectively.
Two of the 10 pieces of data belong to A and 4 belong to B.
How many RPC requests need to be sent to the Regionserver to write these 10 pieces of data?

Which component controls the primary and secondary arbitration of the NameNode in HDFS?

With the continuous increase in the volume of big data, the requirements for the physical security of data storage are getting higher and higher, and higher requirements are put forward for multiple copies of data and disaster tolerance mechanisms.

In Hive, which of the following description of the partition is wrong?

Which data type application scenarios are not suitable for Hadoop's HBase?