From a6d50a90542f1cb141f45b24d864cae42c2c2274 Mon Sep 17 00:00:00 2001
From: Da Zhou <da.zhou@microsoft.com>
Date: Sun, 16 Jun 2019 19:20:46 +0100
Subject: [PATCH] HADOOP-16376. ABFS: Override access() to no-op.

Contributed by Da Zhou.

Change-Id: Ia0024bba32250189a87eb6247808b2473c331ed0
---
 .../fs/azurebfs/AzureBlobFileSystem.java      | 23 +++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AzureBlobFileSystem.java b/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AzureBlobFileSystem.java
index e321e9e88e4..1663ed9b9be 100644
--- a/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AzureBlobFileSystem.java
+++ b/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AzureBlobFileSystem.java
@@ -38,12 +38,12 @@ import java.util.concurrent.Future;
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Preconditions;
-import org.apache.hadoop.fs.azurebfs.services.AbfsClient;
-import org.apache.hadoop.fs.azurebfs.services.AbfsClientThrottlingIntercept;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import org.apache.commons.lang3.ArrayUtils;
+import org.apache.hadoop.fs.azurebfs.services.AbfsClient;
+import org.apache.hadoop.fs.azurebfs.services.AbfsClientThrottlingIntercept;
 import org.apache.hadoop.classification.InterfaceStability;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.BlockLocation;
@@ -70,6 +70,7 @@ import org.apache.hadoop.fs.permission.AclEntry;
 import org.apache.hadoop.fs.permission.AclStatus;
 import org.apache.hadoop.fs.permission.FsAction;
 import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.AccessControlException;
 import org.apache.hadoop.security.token.Token;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.util.Progressable;
@@ -839,6 +840,24 @@ public class AzureBlobFileSystem extends FileSystem {
     }
   }
 
+  /**
+   * Checks if the user can access a path.  The mode specifies which access
+   * checks to perform.  If the requested permissions are granted, then the
+   * method returns normally.  If access is denied, then the method throws an
+   * {@link AccessControlException}.
+   *
+   * @param path Path to check
+   * @param mode type of access to check
+   * @throws AccessControlException        if access is denied
+   * @throws java.io.FileNotFoundException if the path does not exist
+   * @throws IOException                   see specific implementation
+   */
+  @Override
+  public void access(final Path path, FsAction mode) throws IOException {
+    // TODO: make it no-op to unblock hive permission issue for now.
+    // Will add a long term fix similar to the implementation in AdlFileSystem.
+  }
+
   private FileStatus tryGetFileStatus(final Path f) {
     try {
       return getFileStatus(f);