Yurii Shylov created AMBARI-8898:
------------------------------------
Summary: Implement all pre-upgrade checks
Key: AMBARI-8898
URL: https://issues.apache.org/jira/browse/AMBARI-8898
Project: Ambari
Issue Type: Task
Components: ambari-server
Affects Versions: 2.0.0
Reporter: Yurii Shylov
Assignee: Yurii Shylov
Fix For: 2.0.0
The following checks should be implemented:
*All* cluster hosts must satisfy the following:
1) It is either in Host Maintenance Mode or heartbeating with the server
2) If in Host Maintenance Mode, there are no masters on the host
3) If not in Host Maintenance Mode, it must have new version installed
*All* of the following must be satisfied:
1) NameNode HA is enabled
2) Make sure work-preserving RM/NM restart is enabled in YARN configuration
files
3) MR Jobs need to reference the Hadoop libraries from the distributed cache
instead of the cluster
4) Tez jobs need to reference the Hadoop libraries from the distributed cache
instead of the cluster
5) Oozie jobs need to reference the Hadoop libraries from the distributed cache
instead of the cluster
6) All services must be up, not in Service Maintenance Mode, and operational
(all components are up and service check should pass*).
7) All DataNode decommissioning must be completed (no DataNode in
“decommissioning” state)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
