一.环境
IP |
Host 及安装软件 |
部署模块 |
进程 |
172.16.101.55 |
sht-sgmhadoopnn-01 hadoop |
NameNode ResourceManager |
NameNode DFSZKFailoverController ResourceManager |
172.16.101.56 |
sht-sgmhadoopnn-02 hadoop |
NameNode ResourceManager |
NameNode DFSZKFailoverController ResourceManager |
172.16.101.58 |
sht-sgmhadoopdn-01 hadoop、zookeeper |
DataNode NodeManager Zookeeper |
DataNode NodeManager JournalNode QuorumPeerMain |
172.16.101.59 |
sht-sgmhadoopdn-02 Hadoop、zookeeper |
DataNode NodeManager Zookeeper |
DataNode NodeManager JournalNode QuorumPeerMain |
172.16.101.60 |
sht-sgmhadoopdn-03 Hadoop、zookeeper |
DataNode NodeManager Zookeeper |
DataNode NodeManager JournalNode QuorumPeerMain |
172.16.101.66 |
sht-sgmhadoopdn-04(add/del) Hadoop |
DataNode NodeManager
|
DataNode NodeManager
|
###当前环境是hadoop-2.7.2+zookeeper-3.4.6完全分布式环境,HDFS HA+YARN HA。
在hdfs-site.xml文件中,dfs.replication为3。
dfs.replication
3
#下面均采取动态添加、删除节点方式,而不是静态方式(相当于起初部署集群一样,停止namenode,新增一个datanode数据节点,这种方法不适合用于线上提供服务的场景,具体操作,查看参考链接)。
二.动态添加DataNode和NodeManager节点(不修改dfs.replication)【终极版】
http://blog.itpub.net/30089851/viewspace-2055168/
三.添加DataNode节点后,更改文件复制策略dfs.replication
http://blog.itpub.net/30089851/viewspace-2047825/
四.动态删除DataNode和NodeManager节点(修改dfs.replication) 【终极版】
http://blog.itpub.net/30089851/viewspace-2049648/
五.参考
http://my.oschina.net/leoleong/blog/477508