[jira] [Created] (HDDS-6648) NodeSchemaLoader return incorrect networkLocation

["Janus Chow (Jira)" <ji...@apache.org>]

Janus Chow created HDDS-6648:
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             Summary: NodeSchemaLoader return incorrect networkLocation
                 Key: HDDS-6648
                 URL: https://issues.apache.org/jira/browse/HDDS-6648
             Project: Apache Ozone
          Issue Type: Bug
            Reporter: Janus Chow
            Assignee: Janus Chow


In `NodeSchemaLoader.init()`, the file of "network-topology-default.xml" is loaded to retrieve the topology schema.

By default the result schema is "/datacenter/rack/nodegroup/node", and the schema size is 4, since datacenter is treated as "ROOT".

The schema size will also be sent to NetworkTopologyImpl to build the topology, the schema size is used as maxLevel.
{code:java}
public NetworkTopologyImpl(ConfigurationSource conf) {
  schemaManager = NodeSchemaManager.getInstance();
  schemaManager.init(conf);
  maxLevel = schemaManager.getMaxLevel();
  factory = InnerNodeImpl.FACTORY;
  clusterTree = factory.newInnerNode(ROOT, null, null,
      NetConstants.ROOT_LEVEL,
      schemaManager.getCost(NetConstants.ROOT_LEVEL));
} {code}
But for "/datacenter/rack/nodegroup/node" the maxLevel is in fact 5, the reason of the issue is that "datacenter" is treated as "ROOT" incorrectly. While the yaml file version is correctly treated "datacenter" to a InnerNode.



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