[ 
https://issues.apache.org/jira/browse/HADOOP-19406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17940323#comment-17940323
 ] 

ASF GitHub Bot commented on HADOOP-19406:
-----------------------------------------

anujmodi2021 commented on code in PR #7523:
URL: https://github.com/apache/hadoop/pull/7523#discussion_r2024449821


##########
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AzureBlobFileSystem.java:
##########
@@ -250,6 +251,7 @@ public void initialize(URI uri, Configuration configuration)
     try {

Review Comment:
   Need to update the comment above.



##########
hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azurebfs/ITestAzureBlobFileSystemDelegationSAS.java:
##########
@@ -217,6 +220,7 @@ public void testReadAndWrite() throws Exception {
 
   @Test
   public void checkExceptionForRenameOverwrites() throws Exception {
+    assumeHnsEnabled();

Review Comment:
   Why??



##########
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsErrors.java:
##########
@@ -62,7 +62,7 @@ public final class AbfsErrors {
   /**
    * Exception message on filesystem init if token-provider-auth-type configs 
are provided
    */
-  public static final String UNAUTHORIZED_SAS = "Incorrect SAS token provider 
configured for non-hierarchical namespace account.";
+  public static final String UNAUTHORIZED_SAS = "Incorrect SAS token provider 
configured for non-hierarchical namespace account with DFS service type.";

Review Comment:
   Split line length



##########
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsBlobClient.java:
##########
@@ -364,7 +364,7 @@ public AbfsRestOperation listPath(final String 
relativePath, final boolean recur
       abfsUriQueryBuilder.addQuery(QUERY_PARAM_DELIMITER, FORWARD_SLASH);
     }
     abfsUriQueryBuilder.addQuery(QUERY_PARAM_MAX_RESULTS, 
String.valueOf(listMaxResults));
-    appendSASTokenToQuery(relativePath, 
SASTokenProvider.FIXED_SAS_STORE_OPERATION, abfsUriQueryBuilder);
+    appendSASTokenToQuery(relativePath, SASTokenProvider.LIST_OPERATION_BLOB, 
abfsUriQueryBuilder);

Review Comment:
   Why do we need different SASTokenProvider Operation for listing on Blob? Are 
permissions different than that of DFS?



##########
hadoop-tools/hadoop-azure/src/site/markdown/abfs.md:
##########
@@ -663,13 +663,13 @@ To know more about how SAS Authentication works refer to
 [Grant limited access to Azure Storage resources using shared access 
signatures 
(SAS)](https://learn.microsoft.com/en-us/azure/storage/common/storage-sas-overview)
 
 There are three types of SAS supported by Azure Storage:


> ABFS: [FNS Over Blob] Support User Delegation SAS for FNS Blob
> --------------------------------------------------------------
>
>                 Key: HADOOP-19406
>                 URL: https://issues.apache.org/jira/browse/HADOOP-19406
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/azure
>    Affects Versions: 3.4.1
>            Reporter: Anmol Asrani
>            Assignee: Manika Joshi
>            Priority: Major
>              Labels: pull-request-available
>
> In ABFS Driver, user delegation SAS is currently only supported by 
> hierarchical namespace (HNS) enabled accounts (over DFS endpoint). This PR 
> adds support for User Delegation SAS for non-HNS accounts over Blob endpoint 
> as well.



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