haiyang1987 commented on a change in pull request #3596:
URL: https://github.com/apache/hadoop/pull/3596#discussion_r743380933
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeManager.java
##########
@@ -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 @tomscut for your comment.
HDFS-15120 already support
BlockPlacementPolicyDefault#dfs.namenode.block-placement-policy.exclude-slow-nodes.enabled
reconfigurable. But the current way I think is heavy. Do we need to support
alone logic make excludeSlowNodesEnabled reconfigurable？
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeManager.java
##########
@@ -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 @tomscut for your comment.
Is there anything else that needs to be improved in the current code?
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