tomscut commented on a change in pull request #3596:
URL: https://github.com/apache/hadoop/pull/3596#discussion_r742015162
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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:
Thanks @haiyang1987 for your comment. I think the logic right now is no
problem.
I mean that only when `excludeSlowNodesEnabled` is set to `true` we
`startSlowPeerCollector`, and `stopSlowPeerCollector` when
`excludeSlowNodesEnabled` is set to `false`. There is no extra overhead. What
do you think?
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