symious commented on a change in pull request #3595:
URL: https://github.com/apache/hadoop/pull/3595#discussion_r738886825
##########
File path:
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocol/ClientProtocol.java
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@@ -765,6 +765,14 @@ BatchedDirectoryListing getBatchedListing(
@Idempotent
void renewLease(String clientName) throws IOException;
+ /**
+ * The functionality is the same as renewLease(clientName). This is to
support
+ * router based FileSystem to newLease against a specific target FileSystem
instead
+ * of all the target FileSystems in each call.
+ */
+ @Idempotent
+ void renewLease(String clientName, String nsId) throws IOException;
Review comment:
In a RBF cluster, user shouldn't be aware of the Namespace he's trying
to operate.
If we are adding new protocols, maybe we can add "renewLease(String
clientName, String path)" and let Router do the resolve from path to namespace.
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