I have 7 nodes HDP 2.4 with ambari 2.2 cluster -
This is the closest document that I am able to find for deleting host using
APIs.
My host has these services running -
1) Zookeeper_server
2)DATANODE
3)NODEMANAGER
4)RegionServer
5)FLUME
1) I first decommision data and node manager using this -
curl -u admin:admin -i -H 'X-Requested-By: ambari' -X POST -d '{
"RequestInfo":{ "context":"Decommission DataNode",
"command":"DECOMMISSION", "parameters":{ "slave_type":"DATANODE",
"excluded_hosts":"bluedata-69.bdlocal" }, "operation_level":{
"level":"HOST_COMPONENT", "cluster_name":"h2" } },
"Requests/resource_filters":[ { "service_name":"HDFS",
"component_name":"NAMENODE" } ] }' http://10.35.229.2:8080/api/
v1/clusters/h2/requests
2)Next I stop and delete all components (listed above, which I am
successfully able to)
3) Strange thing happens after this -
There is a random behavior on ambari UI where we sometimes see this host
and sometimes not , besides now if I try to delete host from ambari API it
gives me server error and tells host does not exist!! , however I can still
go on UI and delete the host.
All I wanted to do is decommision data node and delete a host in a clean
way using ambari APIs , please assist
Thanks
Kartik
