[
https://issues.apache.org/jira/browse/AMBARI-8898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Yurii Shylov resolved AMBARI-8898.
----------------------------------
Resolution: Fixed
> 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)
