diff --git a/.travis.yml b/.travis.yml
index 76162441e..9367164b0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -30,13 +30,13 @@ jobs:
   include:
     - stage: spark2.3
       language: scala
-      script: ./build/mvn install -Pspark-2.3 -Dmaven.javadoc.skip=true -B -V
+      script: ./build/mvn clean install -Pspark-2.3 -Dmaven.javadoc.skip=true -B -V
     - stage: spark2.2
       language: scala
-      script: ./build/mvn install -Pspark-2.2 -Dmaven.javadoc.skip=true -B -V
+      script: ./build/mvn clean install -Pspark-2.2 -Dmaven.javadoc.skip=true -B -V
     - stage: spark2.1
       language: scala
-      script: ./build/mvn install -Pspark-2.1 -Dmaven.javadoc.skip=true -B -V
+      script: ./build/mvn clean install -Pspark-2.1 -Dmaven.javadoc.skip=true -B -V
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)
diff --git a/bin/kyuubi-logo b/bin/kyuubi-logo
index 10285b4ed..80bb6cd51 100644
--- a/bin/kyuubi-logo
+++ b/bin/kyuubi-logo
@@ -6,4 +6,4 @@
     \ \_\ \_\/`____ \ \____/\ \____/ \ \_,__/\ \_\
      \/_/\/_/`/___/> \/___/  \/___/   \/___/  \/_/
                 /\___/
-                \/__/
\ No newline at end of file
+                \/__/
diff --git a/kyuubi-server/pom.xml b/kyuubi-server/pom.xml
index 5d76397f6..1bacda502 100644
--- a/kyuubi-server/pom.xml
+++ b/kyuubi-server/pom.xml
@@ -279,7 +279,7 @@
                         </goals>
                         <configuration>
                             <sources>
-                                <source>src/gen/</source>
+                                <source>src/gen/java</source>
                             </sources>
                         </configuration>
                     </execution>
diff --git a/kyuubi-server/src/main/scala/org/apache/spark/KyuubiConf.scala b/kyuubi-server/src/main/scala/org/apache/spark/KyuubiConf.scala
index aa7ca4516..51ac2943c 100644
--- a/kyuubi-server/src/main/scala/org/apache/spark/KyuubiConf.scala
+++ b/kyuubi-server/src/main/scala/org/apache/spark/KyuubiConf.scala
@@ -165,7 +165,6 @@ object KyuubiConf {
       .timeConf(TimeUnit.MILLISECONDS)
       .createWithDefault(TimeUnit.HOURS.toMillis(6L))
 
-
   val FRONTEND_IDLE_SESSION_TIMEOUT: ConfigEntry[Long] =
     KyuubiConfigBuilder("spark.kyuubi.frontend.session.timeout")
       .doc("The check interval for session/operation timeout, which can be disabled by setting" +
@@ -373,6 +372,15 @@ object KyuubiConf {
       .intConf
       .createWithDefault(-1)
 
+  val OPERATION_DOWNLOADED_RESOURCES_DIR: ConfigEntry[String] = {
+    KyuubiConfigBuilder("spark.kyuubi.operation.downloaded.resources.dir")
+      .doc("Temporary local directory for added resources in the remote file system.")
+      .stringConf
+      .createWithDefault(
+        s"${sys.env.getOrElse("KYUUBI_HOME", System.getProperty("java.io.tmpdir"))}"
+          + File.separator + "resources")
+  }
+
   /////////////////////////////////////////////////////////////////////////////////////////////////
   //                                   Containerization                                          //
   /////////////////////////////////////////////////////////////////////////////////////////////////
diff --git a/kyuubi-server/src/main/scala/org/apache/spark/sql/SparkSQLUtils.scala b/kyuubi-server/src/main/scala/org/apache/spark/sql/SparkSQLUtils.scala
index 8ddf80188..1b3ab9ed2 100644
--- a/kyuubi-server/src/main/scala/org/apache/spark/sql/SparkSQLUtils.scala
+++ b/kyuubi-server/src/main/scala/org/apache/spark/sql/SparkSQLUtils.scala
@@ -17,6 +17,7 @@
 
 package org.apache.spark.sql
 
+import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan
 import org.apache.spark.sql.hive.HiveUtils
 import org.apache.spark.sql.types.DataType
 
@@ -26,4 +27,15 @@ object SparkSQLUtils {
     HiveUtils.toHiveString(a)
   }
 
+  def getUserJarClassLoader(sparkSession: SparkSession): ClassLoader = {
+    sparkSession.sharedState.jarClassLoader
+  }
+
+  def parsePlan(sparkSession: SparkSession, statement: String): LogicalPlan = {
+    sparkSession.sessionState.sqlParser.parsePlan(statement)
+  }
+
+  def toDataFrame(sparkSession: SparkSession, plan: LogicalPlan): DataFrame = {
+    Dataset.ofRows(sparkSession, plan)
+  }
 }
diff --git a/kyuubi-server/src/main/scala/yaooqinn/kyuubi/operation/KyuubiOperation.scala b/kyuubi-server/src/main/scala/yaooqinn/kyuubi/operation/KyuubiOperation.scala
index 1479bc758..658d65ece 100644
--- a/kyuubi-server/src/main/scala/yaooqinn/kyuubi/operation/KyuubiOperation.scala
+++ b/kyuubi-server/src/main/scala/yaooqinn/kyuubi/operation/KyuubiOperation.scala
@@ -25,14 +25,18 @@ import java.util.concurrent.{Future, RejectedExecutionException}
 import scala.collection.JavaConverters._
 import scala.util.control.NonFatal
 
+import org.apache.commons.lang3.StringUtils
+import org.apache.hadoop.fs.{FileUtil, Path}
 import org.apache.hadoop.hive.conf.HiveConf
 import org.apache.hadoop.hive.ql.security.authorization.plugin.HiveAccessControlException
 import org.apache.hadoop.hive.ql.session.OperationLog
 import org.apache.hive.service.cli.thrift.TProtocolVersion
 import org.apache.spark.KyuubiConf._
 import org.apache.spark.KyuubiSparkUtil
-import org.apache.spark.sql.{AnalysisException, DataFrame, Row}
+import org.apache.spark.sql.{AnalysisException, DataFrame, Row, SparkSQLUtils}
+import org.apache.spark.sql.catalyst.catalog.FunctionResource
 import org.apache.spark.sql.catalyst.parser.ParseException
+import org.apache.spark.sql.execution.command.AddJarCommand
 import org.apache.spark.sql.types._
 
 import yaooqinn.kyuubi.{KyuubiSQLException, Logging}
@@ -40,9 +44,12 @@ import yaooqinn.kyuubi.cli.FetchOrientation
 import yaooqinn.kyuubi.schema.{RowSet, RowSetBuilder}
 import yaooqinn.kyuubi.session.KyuubiSession
 import yaooqinn.kyuubi.ui.KyuubiServerMonitor
+import yaooqinn.kyuubi.utils.ReflectUtils
 
 class KyuubiOperation(session: KyuubiSession, statement: String) extends Logging {
 
+  import KyuubiOperation._
+
   private var state: OperationState = INITIALIZED
   private val opHandle: OperationHandle =
     new OperationHandle(EXECUTE_STATEMENT, session.getProtocolVersion)
@@ -50,7 +57,7 @@ class KyuubiOperation(session: KyuubiSession, statement: String) extends Logging
   private val conf = session.sparkSession.conf
 
   private val operationTimeout =
-    KyuubiSparkUtil.timeStringAsMs(conf.get(OPERATION_IDLE_TIMEOUT.key))
+    KyuubiSparkUtil.timeStringAsMs(conf.get(OPERATION_IDLE_TIMEOUT))
   private var lastAccessTime = System.currentTimeMillis()
 
   private var hasResultSet: Boolean = false
@@ -299,11 +306,30 @@ class KyuubiOperation(session: KyuubiSession, statement: String) extends Logging
     }
   }
 
+  private def localizeAndAndResource(path: String): Unit = try {
+    if (isResourceDownloadable(path)) {
+      val src = new Path(path)
+      val destFileName = src.getName
+      val destFile =
+        new File(session.getResourcesSessionDir, destFileName).getCanonicalPath
+      val fs = src.getFileSystem(session.sparkSession.sparkContext.hadoopConfiguration)
+      fs.copyToLocalFile(src, new Path(destFile))
+      FileUtil.chmod(destFile, "ugo+rx", true)
+      AddJarCommand(destFile).run(session.sparkSession)
+    }
+  } catch {
+    case e: Exception => throw new KyuubiSQLException(s"Failed to read external resource: $path", e)
+  }
+
   private def execute(): Unit = {
     try {
       statementId = UUID.randomUUID().toString
       info(s"Running query '$statement' with $statementId")
       setState(RUNNING)
+
+      val classLoader = SparkSQLUtils.getUserJarClassLoader(session.sparkSession)
+      Thread.currentThread().setContextClassLoader(classLoader)
+
       KyuubiServerMonitor.getListener(session.getUserName).foreach {
         _.onStatementStart(
           statementId,
@@ -314,7 +340,21 @@ class KyuubiOperation(session: KyuubiSession, statement: String) extends Logging
       }
       session.sparkSession.sparkContext.setJobGroup(statementId, statement)
       KyuubiSparkUtil.setActiveSparkContext(session.sparkSession.sparkContext)
-      result = session.sparkSession.sql(statement)
+
+      val parsedPlan = SparkSQLUtils.parsePlan(session.sparkSession, statement)
+      parsedPlan match {
+        case c if c.nodeName == "CreateFunctionCommand" =>
+          val resources =
+            ReflectUtils.getFieldValue(c, "resources").asInstanceOf[Seq[FunctionResource]]
+          resources.foreach { case FunctionResource(_, uri) =>
+            localizeAndAndResource(uri)
+          }
+        case a if a.nodeName == "AddJarCommand" =>
+          val path = ReflectUtils.getFieldValue(a, "path").asInstanceOf[String]
+          localizeAndAndResource(path)
+        case _ =>
+      }
+      result = SparkSQLUtils.toDataFrame(session.sparkSession, parsedPlan)
       KyuubiServerMonitor.getListener(session.getUserName).foreach {
         _.onStatementParsed(statementId, result.queryExecution.toString())
       }
@@ -406,4 +446,9 @@ class KyuubiOperation(session: KyuubiSession, statement: String) extends Logging
 object KyuubiOperation {
   val DEFAULT_FETCH_ORIENTATION: FetchOrientation = FetchOrientation.FETCH_NEXT
   val DEFAULT_FETCH_MAX_ROWS = 100
+
+  def isResourceDownloadable(resource: String): Boolean = {
+    val scheme = new Path(resource).toUri.getScheme
+    StringUtils.equalsIgnoreCase(scheme, "hdfs")
+  }
 }
diff --git a/kyuubi-server/src/main/scala/yaooqinn/kyuubi/session/KyuubiSession.scala b/kyuubi-server/src/main/scala/yaooqinn/kyuubi/session/KyuubiSession.scala
index ff1e4c0fd..29d32a593 100644
--- a/kyuubi-server/src/main/scala/yaooqinn/kyuubi/session/KyuubiSession.scala
+++ b/kyuubi-server/src/main/scala/yaooqinn/kyuubi/session/KyuubiSession.scala
@@ -63,6 +63,7 @@ private[kyuubi] class KyuubiSession(
   private val opHandleSet = new MHSet[OperationHandle]
   private var _isOperationLogEnabled = false
   private var sessionLogDir: File = _
+  private var sessionResourcesDir: File = _
   @volatile private var lastAccessTime: Long = System.currentTimeMillis()
   private var lastIdleTime = 0L
 
@@ -136,6 +137,15 @@ private[kyuubi] class KyuubiSession(
     }
   }
 
+  private def cleanupSessionResourcesDir(): Unit = {
+    try {
+      FileUtils.forceDelete(sessionResourcesDir)
+    } catch {
+      case e: Exception =>
+        error("Failed to cleanup session log dir: " + sessionResourcesDir, e)
+    }
+  }
+
   def sparkSession: SparkSession = this.sparkSessionWithUGI.sparkSession
 
   def ugi: UserGroupInformation = this.sessionUGI
@@ -195,6 +205,8 @@ private[kyuubi] class KyuubiSession(
       // Iterate through the opHandles and close their operations
       opHandleSet.foreach(closeOperation)
       opHandleSet.clear()
+      // Cleanup session resources directory
+      cleanupSessionResourcesDir()
       // Cleanup session log directory.
       cleanupSessionLogDir()
     } finally {
@@ -313,14 +325,14 @@ private[kyuubi] class KyuubiSession(
   def isOperationLogEnabled: Boolean = _isOperationLogEnabled
 
   /**
-   * Get the session dir, which is the parent dir of operation logs
+   * Get the session log dir, which is the parent dir of operation logs
    *
    * @return a file representing the parent directory of operation logs
    */
   def getSessionLogDir: File = sessionLogDir
 
   /**
-   * Set the session dir, which is the parent dir of operation logs
+   * Set the session log dir, which is the parent dir of operation logs
    *
    * @param operationLogRootDir the parent dir of the session dir
    */
@@ -340,6 +352,32 @@ private[kyuubi] class KyuubiSession(
     }
   }
 
+  /**
+   * Get the session resource dir, which is the parent dir of operation logs
+   *
+   * @return a file representing the parent directory of operation logs
+   */
+  def getResourcesSessionDir: File = sessionResourcesDir
+
+  /**
+   * Set the session log dir, which is the parent dir of operation logs
+   *
+   * @param resourcesRootDir the parent dir of the session dir
+   */
+  def setResourcesSessionDir(resourcesRootDir: File): Unit = {
+    sessionResourcesDir = new File(resourcesRootDir,
+      username + File.separator + sessionHandle.getHandleIdentifier.toString + "_resources")
+    if (sessionResourcesDir.exists() && !sessionResourcesDir.isDirectory) {
+      throw new RuntimeException("The resources directory exists but is not a directory: " +
+        sessionResourcesDir)
+    }
+
+    if (!sessionResourcesDir.exists() && !sessionResourcesDir.mkdirs()) {
+      throw new RuntimeException("Couldn't create session resources directory " +
+        sessionResourcesDir)
+    }
+  }
+
   def getSessionHandle: SessionHandle = sessionHandle
 
   def getPassword: String = password
diff --git a/kyuubi-server/src/main/scala/yaooqinn/kyuubi/session/SessionManager.scala b/kyuubi-server/src/main/scala/yaooqinn/kyuubi/session/SessionManager.scala
index e37f32987..4a27313bb 100644
--- a/kyuubi-server/src/main/scala/yaooqinn/kyuubi/session/SessionManager.scala
+++ b/kyuubi-server/src/main/scala/yaooqinn/kyuubi/session/SessionManager.scala
@@ -31,7 +31,7 @@ import org.apache.spark.SparkConf
 import yaooqinn.kyuubi.{KyuubiSQLException, Logging}
 import yaooqinn.kyuubi.operation.OperationManager
 import yaooqinn.kyuubi.server.KyuubiServer
-import yaooqinn.kyuubi.service.CompositeService
+import yaooqinn.kyuubi.service.{CompositeService, ServiceException}
 import yaooqinn.kyuubi.spark.SparkSessionCacheManager
 import yaooqinn.kyuubi.ui.KyuubiServerMonitor
 import yaooqinn.kyuubi.utils.NamedThreadFactory
@@ -41,25 +41,26 @@ import yaooqinn.kyuubi.utils.NamedThreadFactory
  */
 private[kyuubi] class SessionManager private(
     name: String) extends CompositeService(name) with Logging {
-  private[this] val operationManager = new OperationManager()
-  private[this] val cacheManager = new SparkSessionCacheManager()
-  private[this] val handleToSession = new ConcurrentHashMap[SessionHandle, KyuubiSession]
-  private[this] var execPool: ThreadPoolExecutor = _
-  private[this] var isOperationLogEnabled = false
-  private[this] var operationLogRootDir: File = _
-  private[this] var checkInterval: Long = _
-  private[this] var sessionTimeout: Long = _
-  private[this] var checkOperation: Boolean = false
-  private[this] var shutdown: Boolean = false
+  private val operationManager = new OperationManager()
+  private val cacheManager = new SparkSessionCacheManager()
+  private val handleToSession = new ConcurrentHashMap[SessionHandle, KyuubiSession]
+  private var execPool: ThreadPoolExecutor = _
+  private var isOperationLogEnabled = false
+  private var operationLogRootDir: File = _
+  private var resourcesRootDir: File = _
+  private var checkInterval: Long = _
+  private var sessionTimeout: Long = _
+  private var checkOperation: Boolean = false
+  private var shutdown: Boolean = false
 
   def this() = this(classOf[SessionManager].getSimpleName)
 
-  private[this] def createExecPool(): Unit = {
-    val poolSize = conf.get(ASYNC_EXEC_THREADS.key).toInt
+  private def createExecPool(): Unit = {
+    val poolSize = conf.get(ASYNC_EXEC_THREADS).toInt
     info("Background operation thread pool size: " + poolSize)
-    val poolQueueSize = conf.get(ASYNC_EXEC_WAIT_QUEUE_SIZE.key).toInt
+    val poolQueueSize = conf.get(ASYNC_EXEC_WAIT_QUEUE_SIZE).toInt
     info("Background operation thread wait queue size: " + poolQueueSize)
-    val keepAliveTime = conf.getTimeAsSeconds(EXEC_KEEPALIVE_TIME.key)
+    val keepAliveTime = conf.getTimeAsSeconds(EXEC_KEEPALIVE_TIME)
     info("Background operation thread keepalive time: " + keepAliveTime + " seconds")
     val threadPoolName = classOf[KyuubiServer].getSimpleName + "-Background-Pool"
     execPool =
@@ -71,13 +72,13 @@ private[kyuubi] class SessionManager private(
         new LinkedBlockingQueue[Runnable](poolQueueSize),
         new NamedThreadFactory(threadPoolName))
     execPool.allowCoreThreadTimeOut(true)
-    checkInterval = conf.getTimeAsMs(FRONTEND_SESSION_CHECK_INTERVAL.key)
-    sessionTimeout = conf.getTimeAsMs(FRONTEND_IDLE_SESSION_TIMEOUT.key)
-    checkOperation = conf.get(FRONTEND_IDLE_SESSION_CHECK_OPERATION.key).toBoolean
+    checkInterval = conf.getTimeAsMs(FRONTEND_SESSION_CHECK_INTERVAL)
+    sessionTimeout = conf.getTimeAsMs(FRONTEND_IDLE_SESSION_TIMEOUT)
+    checkOperation = conf.get(FRONTEND_IDLE_SESSION_CHECK_OPERATION).toBoolean
   }
 
-  private[this] def initOperationLogRootDir(): Unit = {
-    operationLogRootDir = new File(conf.get(LOGGING_OPERATION_LOG_DIR.key))
+  private def initOperationLogRootDir(): Unit = {
+    operationLogRootDir = new File(conf.get(LOGGING_OPERATION_LOG_DIR))
     isOperationLogEnabled = true
     if (operationLogRootDir.exists && !operationLogRootDir.isDirectory) {
       info("The operation log root directory exists, but it is not a directory: "
@@ -109,10 +110,30 @@ private[kyuubi] class SessionManager private(
     }
   }
 
+  private def initResourcesRootDir(): Unit = {
+    resourcesRootDir = new File(conf.get(OPERATION_DOWNLOADED_RESOURCES_DIR))
+    if (resourcesRootDir.exists() && !resourcesRootDir.isDirectory) {
+      throw new ServiceException("The operation downloaded resources directory exists but is not" +
+        s" a directory ${resourcesRootDir.getAbsolutePath}")
+    }
+    if (!resourcesRootDir.exists() && !resourcesRootDir.mkdirs()) {
+      throw new ServiceException("Unable to create the operation downloaded resources directory" +
+        s" ${resourcesRootDir.getAbsolutePath}")
+    }
+
+    try {
+      FileUtils.forceDeleteOnExit(resourcesRootDir)
+    } catch {
+      case e: IOException =>
+        warn("Failed to schedule clean up Kyuubi Server's root directory for downloaded" +
+          " resources", e)
+    }
+  }
+
   /**
    * Periodically close idle sessions in 'spark.kyuubi.frontend.session.check.interval(default 6h)'
    */
-  private[this] def startTimeoutChecker(): Unit = {
+  private def startTimeoutChecker(): Unit = {
     val interval: Long = math.max(checkInterval, 3000L)
     // minimum 3 seconds
     val timeoutChecker = new Runnable() {
@@ -143,7 +164,7 @@ private[kyuubi] class SessionManager private(
     execPool.execute(timeoutChecker)
   }
 
-  private[this] def sleepInterval(interval: Long): Unit = {
+  private def sleepInterval(interval: Long): Unit = {
     try {
       Thread.sleep(interval)
     } catch {
@@ -152,7 +173,7 @@ private[kyuubi] class SessionManager private(
     }
   }
 
-  private[this] def cleanupLoggingRootDir(): Unit = {
+  private def cleanupLoggingRootDir(): Unit = {
     if (isOperationLogEnabled) {
       try {
         FileUtils.forceDelete(operationLogRootDir)
@@ -164,10 +185,19 @@ private[kyuubi] class SessionManager private(
     }
   }
 
+  private def cleanupResourcesRootDir(): Unit = try {
+    FileUtils.forceDelete(resourcesRootDir)
+  } catch {
+    case e: Exception =>
+      warn("Failed to cleanup root dir of KyuubiServer logging: "
+        + operationLogRootDir.getAbsolutePath, e)
+  }
+
   override def init(conf: SparkConf): Unit = synchronized {
     this.conf = conf
+    initResourcesRootDir()
     // Create operation log root directory, if operation logging is enabled
-    if (conf.get(LOGGING_OPERATION_ENABLED.key).toBoolean) {
+    if (conf.get(LOGGING_OPERATION_ENABLED).toBoolean) {
       initOperationLogRootDir()
     }
     createExecPool()
@@ -188,7 +218,7 @@ private[kyuubi] class SessionManager private(
     shutdown = true
     if (execPool != null) {
       execPool.shutdown()
-      val timeout = conf.getTimeAsSeconds(ASYNC_EXEC_SHUTDOWN_TIMEOUT.key)
+      val timeout = conf.getTimeAsSeconds(ASYNC_EXEC_SHUTDOWN_TIMEOUT)
       try {
         execPool.awaitTermination(timeout, TimeUnit.SECONDS)
       } catch {
@@ -198,6 +228,7 @@ private[kyuubi] class SessionManager private(
       }
       execPool = null
     }
+    cleanupResourcesRootDir()
     cleanupLoggingRootDir()
   }
 
@@ -227,6 +258,7 @@ private[kyuubi] class SessionManager private(
     info(s"Opening session for $username")
     kyuubiSession.open(sessionConf)
 
+    kyuubiSession.setResourcesSessionDir(resourcesRootDir)
     if (isOperationLogEnabled) {
       kyuubiSession.setOperationLogSessionDir(operationLogRootDir)
     }
diff --git a/kyuubi-server/src/test/resources/log4j.xml b/kyuubi-server/src/test/resources/log4j.xml
index 129dcc1ef..37072aab6 100644
--- a/kyuubi-server/src/test/resources/log4j.xml
+++ b/kyuubi-server/src/test/resources/log4j.xml
@@ -33,4 +33,4 @@
         <level value="OFF" />
         <appender-ref ref="console" />
     </root>
-</log4j:configuration>
\ No newline at end of file
+</log4j:configuration>
diff --git a/kyuubi-server/src/test/resources/udf-test.jar b/kyuubi-server/src/test/resources/udf-test.jar
new file mode 100644
index 000000000..e69de29bb
diff --git a/kyuubi-server/src/test/scala/org/apache/spark/sql/SparkSQLUtilsSuite.scala b/kyuubi-server/src/test/scala/org/apache/spark/sql/SparkSQLUtilsSuite.scala
new file mode 100644
index 000000000..6109eff26
--- /dev/null
+++ b/kyuubi-server/src/test/scala/org/apache/spark/sql/SparkSQLUtilsSuite.scala
@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.sql
+
+import org.apache.spark.SparkFunSuite
+
+class SparkSQLUtilsSuite extends SparkFunSuite {
+
+  test("get user jar class loader") {
+    val sparkSession = SparkSession
+      .builder()
+      .appName(classOf[SparkSQLUtilsSuite].getSimpleName)
+      .master("local")
+      .getOrCreate()
+    sparkSession.sql("add jar udf-test.jar")
+    val loader = SparkSQLUtils.getUserJarClassLoader(sparkSession)
+    assert(loader.getResource("udf-test.jar") !== null)
+    sparkSession.stop()
+  }
+
+}
diff --git a/kyuubi-server/src/test/scala/yaooqinn/kyuubi/operation/KyuubiOperationSuite.scala b/kyuubi-server/src/test/scala/yaooqinn/kyuubi/operation/KyuubiOperationSuite.scala
index d6f35d7d1..d165cc707 100644
--- a/kyuubi-server/src/test/scala/yaooqinn/kyuubi/operation/KyuubiOperationSuite.scala
+++ b/kyuubi-server/src/test/scala/yaooqinn/kyuubi/operation/KyuubiOperationSuite.scala
@@ -136,11 +136,19 @@ class KyuubiOperationSuite extends SparkFunSuite {
     assert(s.getUserName === userName)
   }
 
-  test("testDEFAULT_FETCH_ORIENTATION") {
+  test("DEFAULT_FETCH_ORIENTATION") {
     assert(KyuubiOperation.DEFAULT_FETCH_ORIENTATION === FETCH_NEXT)
   }
 
-  test("testDEFAULT_FETCH_MAX_ROWS") {
+  test("DEFAULT_FETCH_MAX_ROWS") {
     assert(KyuubiOperation.DEFAULT_FETCH_MAX_ROWS === 100)
   }
+
+  test("is resource downloadable") {
+    intercept[IllegalArgumentException](KyuubiOperation.isResourceDownloadable(null))
+    intercept[IllegalArgumentException](KyuubiOperation.isResourceDownloadable(""))
+    assert(KyuubiOperation.isResourceDownloadable("hdfs://a/b/c.jar"))
+    assert(!KyuubiOperation.isResourceDownloadable("file://a/b/c.jar"))
+    assert(!KyuubiOperation.isResourceDownloadable("dfs://a/b/c.jar"))
+  }
 }
diff --git a/kyuubi-server/src/test/scala/yaooqinn/kyuubi/server/FrontendServiceSuite.scala b/kyuubi-server/src/test/scala/yaooqinn/kyuubi/server/FrontendServiceSuite.scala
index b29b2ca55..111203bf1 100644
--- a/kyuubi-server/src/test/scala/yaooqinn/kyuubi/server/FrontendServiceSuite.scala
+++ b/kyuubi-server/src/test/scala/yaooqinn/kyuubi/server/FrontendServiceSuite.scala
@@ -21,6 +21,7 @@ import java.net.InetAddress
 
 import scala.collection.JavaConverters._
 
+import org.apache.hadoop.hdfs.MiniDFSCluster
 import org.apache.hive.service.cli.thrift._
 import org.apache.spark.{KyuubiSparkUtil, SparkConf, SparkFunSuite}
 import org.apache.spark.KyuubiConf._
@@ -55,7 +56,7 @@ class FrontendServiceSuite extends SparkFunSuite with Matchers with SecuredFunSu
     super.afterAll()
   }
 
-  test(" test new fe service") {
+  test("test new fe service") {
     val feService = new FrontendService(beService)
     feService.getConf should be(null)
     feService.getStartTime should be(0)
@@ -206,7 +207,7 @@ class FrontendServiceSuite extends SparkFunSuite with Matchers with SecuredFunSu
       val req3 = new TGetOperationStatusReq(resp2.getOperationHandle)
       val resp3 = feService.GetOperationStatus(req3)
       resp3.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
-      Thread.sleep(10000)
+      Thread.sleep(5000)
       val req4 = new TFetchResultsReq(resp2.getOperationHandle, TFetchOrientation.FETCH_NEXT, 50)
       val resp4 = feService.FetchResults(req4)
       resp4.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
@@ -253,4 +254,159 @@ class FrontendServiceSuite extends SparkFunSuite with Matchers with SecuredFunSu
       feService.stop()
     }
   }
+
+  test("alter database") {
+    withFEServiceAndHandle { (fe, handle) =>
+      val req = new TExecuteStatementReq(handle,
+        "alter database default set dbproperties ('kent'='yao')")
+      val resp = fe.ExecuteStatement(req)
+      resp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+
+      val tFetchResultsReq =
+        new TFetchResultsReq(resp.getOperationHandle, TFetchOrientation.FETCH_NEXT, 50)
+      Thread.sleep(5000)
+      val tFetchResultsResp = fe.FetchResults(tFetchResultsReq)
+      tFetchResultsResp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+      tFetchResultsResp.getResults.getRows.size() should be(0)
+    }
+  }
+
+  test("alter schema") {
+    withFEServiceAndHandle { (fe, handle) =>
+      val req = new TExecuteStatementReq(handle,
+        "alter schema default set dbproperties ('kent'='yao')")
+      val resp = fe.ExecuteStatement(req)
+      resp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+
+      val tFetchResultsReq =
+        new TFetchResultsReq(resp.getOperationHandle, TFetchOrientation.FETCH_NEXT, 50)
+
+      Thread.sleep(5000)
+      val tFetchResultsResp = fe.FetchResults(tFetchResultsReq)
+      tFetchResultsResp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+      tFetchResultsResp.getResults.getRows.size() should be(0)
+    }
+  }
+
+  test("alter table name") {
+    withFEServiceAndHandle { (fe, handle) =>
+      val ct = new TExecuteStatementReq(handle, "create table default.src(key int) using parquet")
+      fe.ExecuteStatement(ct)
+      Thread.sleep(5000)
+      val req = new TExecuteStatementReq(handle, "alter table default.src rename to default.src2")
+      val resp = fe.ExecuteStatement(req)
+      resp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+
+      val tFetchResultsReq =
+        new TFetchResultsReq(resp.getOperationHandle, TFetchOrientation.FETCH_NEXT, 50)
+
+      Thread.sleep(5000)
+      val tFetchResultsResp = fe.FetchResults(tFetchResultsReq)
+      tFetchResultsResp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+      tFetchResultsResp.getResults.getRows.size() should be(0)
+    }
+  }
+
+  test("alter table set properties") {
+    withFEServiceAndHandle { (fe, handle) =>
+      val ct = new TExecuteStatementReq(handle, "create table default.src(key int) using parquet")
+      fe.ExecuteStatement(ct)
+      Thread.sleep(5000)
+      val req = new TExecuteStatementReq(handle,
+        "alter table default.src set tblproperties ('kent'='yao')")
+      val resp = fe.ExecuteStatement(req)
+      resp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+
+      val tFetchResultsReq =
+        new TFetchResultsReq(resp.getOperationHandle, TFetchOrientation.FETCH_NEXT, 50)
+
+      Thread.sleep(5000)
+      val tFetchResultsResp = fe.FetchResults(tFetchResultsReq)
+      tFetchResultsResp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+      tFetchResultsResp.getResults.getRows.size() should be(0)
+    }
+  }
+
+  test("alter table unset properties") {
+    withFEServiceAndHandle { (fe, handle) =>
+      val ct = new TExecuteStatementReq(handle,
+        "create table default.src(key int) using parquet tblproperties ('kent'='yao')")
+      fe.ExecuteStatement(ct)
+      Thread.sleep(5000)
+      val req = new TExecuteStatementReq(handle,
+        "alter table default.src unset tblproperties if exists ('kent', 'yao')")
+      val resp = fe.ExecuteStatement(req)
+      resp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+
+      val tFetchResultsReq =
+        new TFetchResultsReq(resp.getOperationHandle, TFetchOrientation.FETCH_NEXT, 50)
+
+      Thread.sleep(5000)
+      val tFetchResultsResp = fe.FetchResults(tFetchResultsReq)
+      tFetchResultsResp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+      tFetchResultsResp.getResults.getRows.size() should be(0)
+    }
+  }
+
+  test("add jar hdfs") {
+    withFEServiceAndHandle { (fe, handle) =>
+      val req = new TExecuteStatementReq(handle, "add jar hdfs://a/b/test.jar")
+      val resp = fe.ExecuteStatement(req)
+      resp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+
+      val tFetchResultsReq =
+        new TFetchResultsReq(resp.getOperationHandle, TFetchOrientation.FETCH_NEXT, 50)
+
+      Thread.sleep(5000)
+      val tFetchResultsResp = fe.FetchResults(tFetchResultsReq)
+      tFetchResultsResp.getStatus.getStatusCode should be(TStatusCode.ERROR_STATUS)
+    }
+  }
+
+  test("add jar local") {
+    withFEServiceAndHandle { (fe, handle) =>
+      val req = new TExecuteStatementReq(handle, "add jar file://a/b/test.jar")
+      val resp = fe.ExecuteStatement(req)
+      resp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+
+      val tFetchResultsReq =
+        new TFetchResultsReq(resp.getOperationHandle, TFetchOrientation.FETCH_NEXT, 50)
+
+      Thread.sleep(5000)
+      val tFetchResultsResp = fe.FetchResults(tFetchResultsReq)
+      tFetchResultsResp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+      tFetchResultsResp.getResults.getRows.get(0).getColVals.get(0).getI32Val.getValue should be(0)
+    }
+  }
+
+  test("create function") {
+    withFEServiceAndHandle { (fe, handle) =>
+      val req = new TExecuteStatementReq(handle,
+        "create temporary function testfunc as 'testClass' using jar 'hdfs://a/b/test.jar'")
+      val resp = fe.ExecuteStatement(req)
+      resp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+
+      val tFetchResultsReq =
+        new TFetchResultsReq(resp.getOperationHandle, TFetchOrientation.FETCH_NEXT, 50)
+
+      Thread.sleep(5000)
+      val tFetchResultsResp = fe.FetchResults(tFetchResultsReq)
+      tFetchResultsResp.getStatus.getStatusCode should be(TStatusCode.ERROR_STATUS)
+    }
+  }
+
+  def withFEServiceAndHandle(block: (FrontendService, TSessionHandle) => Unit): Unit = {
+    val feService = new FrontendService(beService)
+    try {
+      feService.init(conf)
+      feService.start()
+      val req = new TOpenSessionReq(TProtocolVersion.HIVE_CLI_SERVICE_PROTOCOL_V1)
+      val resp = feService.OpenSession(req)
+      resp.getStatus.getStatusCode should be(TStatusCode.SUCCESS_STATUS)
+      val handle = resp.getSessionHandle
+      block(feService, handle)
+    } finally {
+      feService.stop()
+    }
+  }
 }
diff --git a/kyuubi-server/src/test/scala/yaooqinn/kyuubi/session/KyuubiSessionSuite.scala b/kyuubi-server/src/test/scala/yaooqinn/kyuubi/session/KyuubiSessionSuite.scala
index d712dd0c7..e0fa2e1ba 100644
--- a/kyuubi-server/src/test/scala/yaooqinn/kyuubi/session/KyuubiSessionSuite.scala
+++ b/kyuubi-server/src/test/scala/yaooqinn/kyuubi/session/KyuubiSessionSuite.scala
@@ -22,7 +22,6 @@ import java.io.File
 import org.apache.hadoop.security.UserGroupInformation.AuthenticationMethod
 import org.apache.hive.service.cli.thrift.TProtocolVersion
 import org.apache.spark.{KyuubiConf, KyuubiSparkUtil, SparkFunSuite}
-import org.apache.spark.KyuubiConf.LOGGING_OPERATION_LOG_DIR
 import org.apache.spark.sql.SparkSession
 
 import yaooqinn.kyuubi.KyuubiSQLException
@@ -34,6 +33,8 @@ import yaooqinn.kyuubi.utils.ReflectUtils
 
 class KyuubiSessionSuite extends SparkFunSuite {
 
+  import KyuubiConf._
+
   var server: KyuubiServer = _
   var session: KyuubiSession = _
   var spark: SparkSession = _
@@ -105,10 +106,8 @@ class KyuubiSessionSuite extends SparkFunSuite {
   }
 
   test("set operation log session dir") {
-    val operationLogRootDir = new File(server.getConf.get(LOGGING_OPERATION_LOG_DIR.key))
-    operationLogRootDir.setReadable(true)
-    operationLogRootDir.setWritable(true)
-    operationLogRootDir.setExecutable(true)
+    val operationLogRootDir = new File(server.getConf.get(LOGGING_OPERATION_LOG_DIR))
+    operationLogRootDir.mkdirs()
     session.setOperationLogSessionDir(operationLogRootDir)
     assert(session.isOperationLogEnabled)
     assert(operationLogRootDir.exists())
@@ -128,6 +127,30 @@ class KyuubiSessionSuite extends SparkFunSuite {
     operationLogRootDir.setExecutable(true)
   }
 
+  test("set resources session dir") {
+    val resourceRoot = new File(server.getConf.get(OPERATION_DOWNLOADED_RESOURCES_DIR))
+    resourceRoot.mkdirs()
+    resourceRoot.deleteOnExit()
+    assert(resourceRoot.isDirectory)
+    session.setResourcesSessionDir(resourceRoot)
+    val subDir = resourceRoot.listFiles().head
+    assert(subDir.getName === KyuubiSparkUtil.getCurrentUserName)
+    val resourceDir = subDir.listFiles().head
+    assert(resourceDir.getName === session.getSessionHandle.getSessionId + "_resources")
+    session.setResourcesSessionDir(resourceRoot)
+    assert(subDir.listFiles().length === 1, "directory should already exists")
+    assert(resourceDir.delete())
+    resourceDir.createNewFile()
+    assert(resourceDir.isFile)
+    val e1 = intercept[RuntimeException](session.setResourcesSessionDir(resourceRoot))
+    assert(e1.getMessage.startsWith("The resources directory exists but is not a directory"))
+    resourceDir.delete()
+    subDir.setWritable(false)
+    val e2 = intercept[RuntimeException](session.setResourcesSessionDir(resourceRoot))
+    assert(e2.getMessage.startsWith("Couldn't create session resources directory"))
+    subDir.setWritable(true)
+  }
+
   test("get no operation time") {
     assert(session.getNoOperationTime !== 0L)
   }
diff --git a/kyuubi-server/src/test/scala/yaooqinn/kyuubi/session/SessionManagerSuite.scala b/kyuubi-server/src/test/scala/yaooqinn/kyuubi/session/SessionManagerSuite.scala
index 91de06dc2..7cd34458f 100644
--- a/kyuubi-server/src/test/scala/yaooqinn/kyuubi/session/SessionManagerSuite.scala
+++ b/kyuubi-server/src/test/scala/yaooqinn/kyuubi/session/SessionManagerSuite.scala
@@ -24,11 +24,13 @@ import org.apache.hive.service.cli.thrift.TProtocolVersion
 import org.apache.spark.{KyuubiConf, KyuubiSparkUtil, SparkConf, SparkFunSuite}
 
 import yaooqinn.kyuubi.KyuubiSQLException
-import yaooqinn.kyuubi.service.State
+import yaooqinn.kyuubi.service.{ServiceException, State}
 import yaooqinn.kyuubi.utils.ReflectUtils
 
 class SessionManagerSuite extends SparkFunSuite {
 
+  import KyuubiConf._
+
   test("init operation log") {
     val logRoot = UUID.randomUUID().toString
     val logRoot2 = logRoot + "/sub"
@@ -67,6 +69,29 @@ class SessionManagerSuite extends SparkFunSuite {
     sessionManager4.stop()
   }
 
+  test("init resources root dir") {
+    val conf = new SparkConf(true).set(KyuubiConf.LOGGING_OPERATION_ENABLED.key, "false")
+    KyuubiSparkUtil.setupCommonConfig(conf)
+    val sessionManager = new SessionManager()
+
+    sessionManager.init(conf)
+    val resourcesRoot = new File(conf.get(OPERATION_DOWNLOADED_RESOURCES_DIR))
+    assert(resourcesRoot.exists())
+    assert(resourcesRoot.isDirectory)
+    resourcesRoot.delete()
+    resourcesRoot.createNewFile()
+    val e1 = intercept[ServiceException](sessionManager.init(conf))
+    assert(e1.getMessage.startsWith(
+      "The operation downloaded resources directory exists but is not a directory"))
+    assert(resourcesRoot.delete())
+    resourcesRoot.getParentFile.setWritable(false)
+    try {
+      intercept[Exception](sessionManager.init(conf))
+    } finally {
+      resourcesRoot.getParentFile.setWritable(true)
+    }
+  }
+
   test("start timeout checker") {
     val conf = new SparkConf().set(KyuubiConf.FRONTEND_SESSION_CHECK_INTERVAL.key, "-1")
     val sessionManager = new SessionManager()