ambari系列--报错问题2

来源：互联网发布：iphone7和iphone8 知乎编辑：程序博客网时间：2024/06/03 15:18

ambari HDFS-HA 回滚

查看hdfs的信息
curl -u admin:admin -H "X-Requested-By: ambari" -X GET http://centos1:8080/api/v1/clusters/hadoop1/services/HDFS

hadoop1为cluster名字,HDFS为服务名称
查看服务
centos1,datanode,journalnode,namenode
centos2,datanode,journalnode,SECONDARY_NAMENODE
centos3,datanode,journalnode,namenode
停止hdfs
curl -u admin:admin -H "X-Requested-By: ambari" -X PUT -d '{"RequestInfo": {"context":"Stop Service"},"Body":{"ServiceInfo":{"state":"INSTALLED"}}}' http://centos1:8080/api/v1/clusters/hadoop1/services/HDFS
查看各主机的组件角色
curl -u admin:admin -i http://centos1:8080/api/v1/clusters/hadoop1/host_components?HostRoles/component_name=NAMENODE

curl -u admin:admin -i http://centos1:8080/api/v1/clusters/hadoop1/host_components?HostRoles/component_name=SECONDARY_NAMENODE

curl -u admin:admin -i http://centos1:8080/api/v1/clusters/hadoop1/host_components?HostRoles/component_name=JOURNALNODE

curl -u admin:admin -i http://centos1:8080/api/v1/clusters/hadoop1/host_components?HostRoles/component_name=ZKFC

删除zkfc
curl -u admin:admin -H "X-Requested-By: ambari" -X DELETE http://centos1:8080/api/v1/clusters/hadoop1/hosts/centos1.hadoop/host_components/ZKFC
curl -u admin:admin -H "X-Requested-By: ambari" -X DELETE http://centos1:8080/api/v1/clusters/hadoop1/hosts/centos2.hadoop/host_components/ZKFC

启用SECONDARY_NAMENODE
curl -u admin:admin -H "X-Requested-By: ambari" -X POST -d '{"host_components" : [{"HostRoles":{"component_name":"SECONDARY_NAMENODE"}}] }' http://centos1:8080/api/v1/clusters/hadoop1/hosts?Hosts/host_name=centos2.hadoop

curl -u admin:admin -H "X-Requested-By: ambari" -X PUT -d '{"RequestInfo":{"context":"Enable Secondary NameNode"},"Body":{"HostRoles":{"state":"INSTALLED"}}}' http://centos1:8080/api/v1/clusters/hadoop1/hosts/centos2.hadoop/host_components/SECONDARY_NAMENODE

curl -u admin:admin -H "X-Requested-By: ambari" -X GET "http://centos1:8080/api/v1/clusters/hadoop1/host_components?HostRoles/component_name=SECONDARY_NAMENODE&fields=HostRoles/state"

删除journalnode
curl -u admin:admin -H "X-Requested-By: ambari" -X GET http://centos1:8080/api/v1/clusters/hadoop1/host_components?HostRoles/component_name=JOURNALNODE
curl -u admin:admin -H "X-Requested-By: ambari" -X DELETE http://centos1:8080/api/v1/clusters/hadoop1/hosts/centos1.hadoop/host_components/JOURNALNODE
curl -u admin:admin -H "X-Requested-By: ambari" -X DELETE http://centos1:8080/api/v1/clusters/hadoop1/hosts/centos2.hadoop/host_components/JOURNALNODE
curl -u admin:admin -H "X-Requested-By: ambari" -X DELETE http://centos1:8080/api/v1/clusters/hadoop1/hosts/centos3.hadoop/host_components/JOURNALNODE

删除额外的namenode：
curl -u admin:admin -H "X-Requested-By: ambari" -X GET http://centos1:8080/api/v1/clusters/hadoop1/host_components?HostRoles/component_name=NAMENODE
curl -u admin:admin -H "X-Requested-By: ambari" -X DELETE http://centos1:8080/api/v1/clusters//hadoop1/hosts/centos2.hadoop/host_components/NAMENODE
在ambari的页面上将 hdfs的配置版本信息改为HA之前的版本v2
HDFS->Configs

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