Which of the following description on the role of stand-by NameNode in Huawei FusionInsight HD system is correct? (Multiple choice)
A. Main NameNode’s hot standby
B. stand-by NameNode has no memory requirements
C. help the main NameNode merge edit log, reduce the main NameNode’s start time
D. The stand-by NameNode should be deployed to a node with the main NameNode
Answer:A
Which of the following description on the role of stand-by NameNode in Huawei FusionInsight HD system is correct? (Multiple choice)
A. Main NameNode’s hot standby B. stand-by NameNode has no memory requirements C. help the main NameNode merge edit log, reduce the main NameNode’s start time D. The stand-by NameNode should be deployed to a node with the main NameNode