Sunil Ganatra created AMBARI-26616:
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Summary: Refresh rack topology mappings during HDFS/YARN
include-exclude updates
Key: AMBARI-26616
URL: https://issues.apache.org/jira/browse/AMBARI-26616
Project: Ambari
Issue Type: Bug
Components: ambari-server
Affects Versions: 3.0.0
Reporter: Sunil Ganatra
When adding DataNode or NodeManager hosts, Ambari refreshes include/exclude
files on NameNode and ResourceManager hosts, but the rack topology mapping file
can remain stale because topology regeneration only runs on hosts where worker
components are started. This may require restarting NameNode or ResourceManager
before new hosts appear with the correct rack information.
Update the HDFS and YARN refresh/decommission workflows to regenerate
{{topology_mappings.data}} during the existing “Update Include/Exclude Files”
action, so {{{}hdfs dfsadmin -printTopology{}}}, {{{}hdfs dfsadmin -report{}}},
and {{yarn node -status}} reflect newly added hosts without requiring master
service restarts.
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