HDFS-17602. RBF mount point with SPACE order can not find the most available namespace, it will choose an irrelevant namespace

wzk784533 · wzk784533 · commit 2f0987e628d6 · 2024-12-02T11:38:26.000+08:00
diff --git a/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/order/AvailableSpaceResolver.java b/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/order/AvailableSpaceResolver.java
@@ -123,8 +123,7 @@ protected String chooseFirstNamespace(String path, PathLocation loc) {
     }
     Collections.sort(subclusterList, comparator);
 
-    return subclusterList.size() > 0 ? subclusterList.get(0).getNameserviceId()
-        : null;
+    return subclusterList.size() > 0 ? subclusterList.get(0).getNameserviceId() : null;
   }
 
   /**

Original file line number	Diff line number	Diff line change
`@@ -123,8 +123,7 @@ protected String chooseFirstNamespace(String path, PathLocation loc) {`
`123`	`123`	`}`
`124`	`124`	`Collections.sort(subclusterList, comparator);`
`125`	`125`
`126`		`- return subclusterList.size() > 0 ? subclusterList.get(0).getNameserviceId()`
`127`		`- : null;`
	`126`	`+ return subclusterList.size() > 0 ? subclusterList.get(0).getNameserviceId() : null;`
`128`	`127`	`}`
`129`	`128`
`130`	`129`	`/**`