ElasticSearch can be used as a relational database similar to MySQL.

Use the Hbase client to write 10 pieces of data in batches. An HRegionServer node contains 2 regions of the table, namely A and B.
Among the 10 pieces of data, 6 belong to A and 4 belong to B.
Please write How many RPC requests do I need to send to HRegionServer for these 10 pieces of data?

The RowKey of a table in HBase is divided the SplitKey into 9, e, a, z. How many Regions does this table have?

In a Fusionlnsight HD cluster, if the recommended deployment scheme is adopted with a cluster size of 300 nodes, which partitions must not exist on the control node?

YarnWhen doing resource scheduling, maptaak and reduceTask are run in( )middle.