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https://issues.apache.org/jira/browse/HDFS-16772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17605577#comment-17605577
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ASF GitHub Bot commented on HDFS-16772:
---------------------------------------
ZanderXu commented on code in PR #4890:
URL: https://github.com/apache/hadoop/pull/4890#discussion_r972548913
##########
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeManager.java:
##########
@@ -1327,8 +1327,8 @@ private void refreshHostsReader(Configuration conf)
throws IOException {
// Update the file names and refresh internal includes and excludes list.
if (conf == null) {
conf = new HdfsConfiguration();
- this.hostConfigManager.setConf(conf);
}
+ this.hostConfigManager.setConf(conf);
Review Comment:
Sure, I will add one UT to verify it.
> refreshHostsReader should use the new configuration
> ---------------------------------------------------
>
> Key: HDFS-16772
> URL: https://issues.apache.org/jira/browse/HDFS-16772
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: ZanderXu
> Assignee: ZanderXu
> Priority: Major
> Labels: pull-request-available
>
> `refreshHostsReader` should use the latest configuration.
> And the current code as bellow:
> {code:java}
> /** 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();
> } {code}
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