HADOOP-14205. No FileSystem for scheme: adl. Contributed by John Zhuge.

(cherry picked from commit 84e2c11f969825e52b6bdb4696f48e4567875d41)

Conflicts:
	hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
	hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestCommonConfigurationFields.java

hadoop-common-project/hadoop-common/src/main/resources/core-default.xml

@@ -1127,6 +1127,20 @@
   <description>The implementation class of the S3A AbstractFileSystem.</description>
 </property>
 
+  <!-- Azure Data Lake File System Configurations -->
+
+  <property>
+    <name>fs.adl.impl</name>
+    <value>org.apache.hadoop.fs.adl.AdlFileSystem</value>
+  </property>
+
+  <property>
+    <name>fs.AbstractFileSystem.adl.impl</name>
+    <value>org.apache.hadoop.fs.adl.Adl</value>
+  </property>
+
+  <!-- Azure Data Lake File System Configurations Ends Here-->
+
 <property>
   <name>io.seqfile.compress.blocksize</name>
   <value>1000000</value>

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestCommonConfigurationFields.java

@@ -102,6 +102,12 @@ public class TestCommonConfigurationFields extends TestConfigurationFieldsBase {
     xmlPrefixToSkipCompare.add("s3.");
     xmlPrefixToSkipCompare.add("s3native.");
 
+    // ADL properties are in a different subtree
+    // - org.apache.hadoop.hdfs.web.ADLConfKeys
+    xmlPrefixToSkipCompare.add("adl.");
+    xmlPropsToSkipCompare.add("fs.adl.impl");
+    xmlPropsToSkipCompare.add("fs.AbstractFileSystem.adl.impl");
+
     // Deprecated properties.  These should eventually be removed from the
     // class.
     configurationPropsToSkipCompare

hadoop-tools/hadoop-tools-dist/pom.xml

@@ -111,6 +111,12 @@
       <version>${project.version}</version>
       <scope>compile</scope>
     </dependency>
+    <dependency>
+      <groupId>org.apache.hadoop</groupId>
+      <artifactId>hadoop-azure-datalake</artifactId>
+      <scope>compile</scope>
+      <version>${project.version}</version>
+    </dependency>
   </dependencies>
 
   <build>