huangzhaobo99 commented on code in PR #6279:
URL: https://github.com/apache/hadoop/pull/6279#discussion_r1412783688
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hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/SlowPeerDisabledTracker.java:
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@@ -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, as 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.
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