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HDFS-16871 DiskBalancer process may throw IllegalArgumentException when the target DataNode has capital letter in hostname (#5240)

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Daniel-009497 2022-12-21 07:12:02 +08:00 committed by GitHub
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hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/diskbalancer/datamodel/DiskBalancerCluster.java
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@ -389,6 +389,6 @@ public DiskBalancerDataNode getNodeByIPAddress(String ipAddresss) {
* @return DiskBalancerDataNode. * @return DiskBalancerDataNode.
*/ */
public DiskBalancerDataNode getNodeByName(String hostName) { public DiskBalancerDataNode getNodeByName(String hostName) {
return hostNames.get(hostName); return hostNames.get(hostName.toLowerCase(Locale.US));
} }
} }