DIRKRB-700 DIRKRB-700.
diff --git a/has-project/supports/spark/README.md b/has-project/supports/spark/README.md
new file mode 100644
index 0000000..84e9eac
--- /dev/null
+++ b/has-project/supports/spark/README.md
@@ -0,0 +1,45 @@
+Enable Spark
+===============
+
+## 1. Apply the [patch](https://github.com/apache/directory-kerby/blob/has-project/has/supports/hadoop/hadoop-2.7.2.patch) to hadoop-2.7.2 source code
+```
+git apply hadoop-2.7.2.patch
+```
+
+## 2. Install
+```
+mvn clean install -DskipTests
+```
+
+## 3. Apply the patch to spark-v2.0.0 source code
+```
+git apply spark-v2.0.0.patch
+```
+
+## 4. Build
+```
+./build/mvn -Pyarn -Phadoop-2.7 -Dhadoop.version=2.7.2 -DskipTests clean package
+```
+
+## 5. Update spark-env.sh
+```
+SPARK_HISTORY_OPTS=-Dspark.history.kerberos.enabled=true \
+-Dspark.history.kerberos.principal=<spark/_HOST@HADOOP.COM> \
+-Dspark.history.kerberos.keytab=<keytab>
+```
+
+> Note "_HOST" should be replaced with the specific hostname.
+
+## 6. Spark-submit job
+> YARN mode supported only
+```
+/bin/spark-submit \
+ --use-has \
+ --class <main-class>
+ --master <master-url> \
+ --deploy-mode <deploy-mode> \
+ --conf <key>=<value> \
+ ... # other options
+ <application-jar> \
+ <application-arguments>
+```
diff --git a/has-project/supports/spark/spark-v2.0.0.patch b/has-project/supports/spark/spark-v2.0.0.patch
new file mode 100644
index 0000000..9e560a2
--- /dev/null
+++ b/has-project/supports/spark/spark-v2.0.0.patch
@@ -0,0 +1,59 @@
+diff --git a/core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala b/core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala
+index 9feafc9..5501721 100644
+--- a/core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala
++++ b/core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala
+@@ -549,7 +549,9 @@ object SparkSubmit {
+
+ // assure a keytab is available from any place in a JVM
+ if (clusterManager == YARN || clusterManager == LOCAL) {
+- if (args.principal != null) {
++ if (args.useHas) {
++ UserGroupInformation.loginUserFromHas()
++ } else if (args.principal != null) {
+ require(args.keytab != null, "Keytab must be specified when principal is specified")
+ if (!new File(args.keytab).exists()) {
+ throw new SparkException(s"Keytab file: ${args.keytab} does not exist")
+diff --git a/core/src/main/scala/org/apache/spark/deploy/SparkSubmitArguments.scala b/core/src/main/scala/org/apache/spark/deploy/SparkSubmitArguments.scala
+index f1761e7..835f4c1 100644
+--- a/core/src/main/scala/org/apache/spark/deploy/SparkSubmitArguments.scala
++++ b/core/src/main/scala/org/apache/spark/deploy/SparkSubmitArguments.scala
+@@ -78,6 +78,8 @@ private[deploy] class SparkSubmitArguments(args: Seq[String], env: Map[String, S
+ var submissionToRequestStatusFor: String = null
+ var useRest: Boolean = true // used internally
+
++ var useHas: Boolean = false
++
+ /** Default properties present in the currently defined defaults file. */
+ lazy val defaultSparkProperties: HashMap[String, String] = {
+ val defaultProperties = new HashMap[String, String]()
+@@ -435,6 +437,9 @@ private[deploy] class SparkSubmitArguments(args: Seq[String], env: Map[String, S
+ case VERSION =>
+ SparkSubmit.printVersionAndExit()
+
++ case USE_HAS =>
++ useHas = true
++
+ case USAGE_ERROR =>
+ printUsageAndExit(1)
+
+diff --git a/launcher/src/main/java/org/apache/spark/launcher/SparkSubmitOptionParser.java b/launcher/src/main/java/org/apache/spark/launcher/SparkSubmitOptionParser.java
+index 6767cc5..ec42de5 100644
+--- a/launcher/src/main/java/org/apache/spark/launcher/SparkSubmitOptionParser.java
++++ b/launcher/src/main/java/org/apache/spark/launcher/SparkSubmitOptionParser.java
+@@ -76,6 +76,8 @@ class SparkSubmitOptionParser {
+ protected final String PRINCIPAL = "--principal";
+ protected final String QUEUE = "--queue";
+
++ protected final String USE_HAS = "--use-has";
++
+ /**
+ * This is the canonical list of spark-submit options. Each entry in the array contains the
+ * different aliases for the same option; the first element of each entry is the "official"
+@@ -115,6 +117,7 @@ class SparkSubmitOptionParser {
+ { REPOSITORIES },
+ { STATUS },
+ { TOTAL_EXECUTOR_CORES },
++ { USE_HAS },
+ };
+
+ /**
diff --git a/has-project/supports/zookeeper/README.md b/has-project/supports/zookeeper/README.md
index edc7a0e..f74c5dd 100644
--- a/has-project/supports/zookeeper/README.md
+++ b/has-project/supports/zookeeper/README.md
@@ -3,18 +3,18 @@
## 1. Create the dependency jars
```
-cd HAS/supports/zookeeper
+cd directroy-kerby/has-project/supports/zookeeper
mvn clean package
```
## 2. Copy the jars to ZooKeeper lib directory
```
-cp HAS/supports/zookeeper/lib/* $ZOOKEEPER_HOME/lib/
+cp directroy-kerby/has-project/supports/zookeeper/lib/* $ZOOKEEPER_HOME/lib/
```
## 3. Copy the conf file to ZooKeeper conf directory
```
-cp HAS/supports/zookeeper/conf/* $ZOOKEEPER_HOME/conf/
+cp directroy-kerby/has-project/supports/zookeeper/conf/* $ZOOKEEPER_HOME/conf/
```
## 4. Update Zookeeper security configuration files
