GuoPhilipse commented on a change in pull request #3559:
URL: https://github.com/apache/hadoop/pull/3559#discussion_r733679533
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/AvailableSpaceBlockPlacementPolicy.java
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@@ -77,6 +86,16 @@ public void initialize(Configuration conf, FSClusterStats
stats,
+ " is less than 0.5 so datanodes with more used percent will"
+ " receive more block allocations.");
}
+
+ if (balancedSpaceTolerance > 20 || balancedSpaceTolerance < 0) {
+ LOG.warn("The value of "
+ +
DFS_NAMENODE_AVAILABLE_SPACE_BLOCK_PLACEMENT_POLICY_BALANCED_SPACE_TOLERANCE_KEY
Review comment:
thanks @prasad-acit ,seems more clear for the warning message
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