Database, Data Engineering, Dbms, Data Modeling, Data Management.
the figure below. StreamLoad1 has BE1 as the coordinator. BE1 requests a batch of IDs (range: 1–1000) from the FE and caches the IDs locally. Once all 1000 IDs are allocated, BE1 will request a new batch from the FE. At the same time, StreamLoad 2 selects BE3 as the coordinator, and BE3 also