[HDFS-16772] refreshHostsReader should use the new configuration - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: 3.4.0
Fix Version/s: 3.4.0
Component/s: datanode, namenode
Labels:
- pull-request-available

Target Version/s:

3.4.0
Hadoop Flags:

Reviewed

Description

`refreshHostsReader` should use the latest configuration.

And the current code as bellow:

/** Reread include/exclude files. */
private void refreshHostsReader(Configuration conf) throws IOException {
  if (conf == null) {
    conf = new HdfsConfiguration();
    // BUG here
    this.hostConfigManager.setConf(conf);
  }
  this.hostConfigManager.refresh();
}