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https://issues.apache.org/jira/browse/HDFS-17260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17792368#comment-17792368
 ] 

ASF GitHub Bot commented on HDFS-17260:
---------------------------------------

huangzhaobo99 commented on code in PR #6279:
URL: https://github.com/apache/hadoop/pull/6279#discussion_r1412783688


##########
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/SlowPeerDisabledTracker.java:
##########
@@ -46,11 +46,6 @@ public class SlowPeerDisabledTracker extends SlowPeerTracker 
{
 
   public SlowPeerDisabledTracker(Configuration conf, Timer timer) {
     super(conf, timer);
-    final boolean dataNodePeerStatsEnabledVal =
-        conf.getBoolean(DFSConfigKeys.DFS_DATANODE_PEER_STATS_ENABLED_KEY,
-            DFSConfigKeys.DFS_DATANODE_PEER_STATS_ENABLED_DEFAULT);
-    Preconditions.checkArgument(!dataNodePeerStatsEnabledVal,
-        "SlowPeerDisabledTracker should only be used for disabled slow peer 
stats.");

Review Comment:
   @haiyang1987 
   we will proceed with the original processing, there is no validation in 
SlowPeerTracker,
   In SlowPeerDisabledTracker, we will first remove this invalid 
validation.`getConf().setBoolean(DFS_DATANODE_PEER_STATS_ENABLED_KEY, 
peerStatsEnabled);`
   
   If ‘setConf’ in advance, the logic of the original reconfig may have a 
slightly different meaning, because in the production environment, the 
configuration is changed through reconfigureProperty and then the configuration 
in memory is refreshed.





> Fix the logic for reconfigure slow peer enable for Namenode.
> ------------------------------------------------------------
>
>                 Key: HDFS-17260
>                 URL: https://issues.apache.org/jira/browse/HDFS-17260
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: huangzhaobo99
>            Assignee: huangzhaobo99
>            Priority: Major
>              Labels: pull-request-available
>




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