You may need to delete
your additional NameNode.
Check to see if you need to delete your Additional NameNode,
on the Ambari Server host:
curl -u [AMBARI_USER]:[AMBARI_PW] -H "X-Requested-By: ambari" -i -X GET
[AMBARI_PROTO]://localhost:[AMBARI_PORT]/api/v1/clusters/[CLUSTER_NAME]/host_components?HostRoles/component_name=NAMENODE
If the items array contains two NameNodes, the
Additional NameNode must be deleted.
-
On the Ambari Server host, run the following command:
curl -u [AMBARI_USER]:[AMBARI_PW] -H "X-Requested-By: ambari" -i -X
DELETE
[AMBARI_PROTO]://localhost:[AMBARI_PORT]/api/v1/clusters/[CLUSTER_NAME]/hosts/[ADDITIONAL_NAMENODE_HOSTNAME]/host_components/NAMENODE
-
Verify that the Additional NameNode has been deleted:
curl -u [AMBARI_USER]:[AMBARI_PW] -H "X-Requested-By: ambari" -i -X GET
[AMBARI_PROTO]://localhost:[AMBARI_PORT]/api/v1/clusters/[CLUSTER_NAME]/host_components?HostRoles/component_name=NAMENODE
This should return an items array that shows only one
NameNode.
