【Hadoop】Hadoop HA機制要點

Hadoop HA 機制架構、要點、原理：

需要的機器（規劃）：

至少三台機器

HOSTNAME        IP              安裝軟體ZK               HADOOP程序
HADOOP-NODE1    10.20.0.11      JDK,HADOOP              NameNode,DFSZKFailoverController(ZKFC)
HADOOP-NODE2    10.20.0.12      JDK,HADOOP              NameNode,DFSZKFailoverController(ZKFC)
HADOOP-NODE3    10.20.0.13      JDK,HADOOP              ResourceManager
HADOOP-NODE4    10.20.0.14      JDK,HADOOP              ResourceManager
HADOOP-NODE5    10.20.0.15      JDK,HADOOP,ZK           QuorumPeerMain,JournalNode,DataNode,NodeManager
HADOOP-NODE6    10.20.0.16      JDK,HADOOP,ZK           QuorumPeerMain,JournalNode,DataNode,NodeManager
HADOOP-NODE7    10.20.0.17      JDK,HADOOP,ZK           QuorumPeerMain,JournalNode,DataNode,NodeManager