Dmytro Sen created AMBARI-21868:
-----------------------------------
Summary: Allow state transition from INSTALLED to INIT for host
recovery
Key: AMBARI-21868
URL: https://issues.apache.org/jira/browse/AMBARI-21868
Project: Ambari
Issue Type: Task
Components: ambari-server
Affects Versions: 2.6.0
Reporter: Dmytro Sen
Assignee: Dmytro Sen
Priority: Blocker
Fix For: 2.6.0
*Problem Statement*:
Allow user to bring back a host/VM that is dead with the same hostname and
allow an action to recover the state of the host to what it was before the
incident
*Solution*:
- User gets the host/VM back with same hostname (different IP address is ok)
- The UI state would be INSTALLED for all host components as soon as the host
starts heart beating
- User will initiate a Recover user action that will do the following (batch
operation):
-- Move the state of the components back to INIT (allow this state transition)
{code}
curl -H "X-Requested-By:ambari" -u admin:admin -i -X PUT -d
{"RequestInfo":{"context":"Reset All Host
Components","operation_level":{"level":"HOST","cluster_name":"c1","host_names":"c6401.ambari.apahe.org"},"query":"HostRoles/component_name.in(DATANODE,NODEMANAGER,METRICS_MONITOR)"},"Body":{"HostRoles":{"state":"INIT"}}}
http://c6401.ambari.apache.org:8080/api/v1/clusters/c1/hosts/c6401.ambari.apache.org/host_components
{code}
-- Issue an INSTALL operation on all hostcomponents (Same call as above with
state = "INSTALLED")
-- Issue a START operation on all hostcomponents (Same call as above with state
= "STARTED")
*Note*: The above operation is expected to recover the security state of the
host.
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