HDFS-16704. Modify patch based on comment

zengqiang.xu · zengqiang.xu · commit 2af6c2bf0f31 · 2022-08-15T18:37:17.000+08:00
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
@@ -3630,7 +3630,7 @@ public String getBPServiceActorInfo() {
   public String getVolumeInfo() {
     if (data == null) {
       LOG.debug("Storage not yet initialized.");
-      return JSON.toString(new HashMap<String, Object>());
+      return "";
     }
     return JSON.toString(data.getVolumeInfoMap());
   }

Original file line number	Diff line number	Diff line change
`@@ -3630,7 +3630,7 @@ public String getBPServiceActorInfo() {`
`3630`	`3630`	`public String getVolumeInfo() {`
`3631`	`3631`	`if (data == null) {`
`3632`	`3632`	`LOG.debug("Storage not yet initialized.");`
`3633`		`- return JSON.toString(new HashMap<String, Object>());`
	`3633`	`+ return "";`
`3634`	`3634`	`}`
`3635`	`3635`	`return JSON.toString(data.getVolumeInfoMap());`
`3636`	`3636`	`}`