haiyang1987 commented on a change in pull request #3596:
URL: https://github.com/apache/hadoop/pull/3596#discussion_r741707936
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File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeManager.java
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@@ -511,7 +505,16 @@ private boolean isInactive(DatanodeInfo datanode) {
private boolean isSlowNode(String dnUuid) {
return avoidSlowDataNodesForRead && slowNodesUuidSet.contains(dnUuid);
}
-
+
+ public void setAvoidSlowDataNodesForReadEnabled(boolean enable) {
Review comment:
Consider slowNodesUuidSet is generated when the SlowPeerCollector thread
is started，therefore it is logical to judge whether the dnUuid exists in the
slowNodesUuidSet?
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