Mahout 0.11.1 Spark-Shell NoClassDefFoundError

Question

我正在尝试使Mahout Spark-Shell在Cloudera QuickStart VM上运行

Mahout: Version 0.11.1

Spark: Version 1.5.0-cdh5.5.1

Java: 1.7.0_67

.bashrc设置为

export MAHOUT_HOME=/home/cloudera/Desktop/Mahout_0_11_1
export MAHOUT_LOCAL=true
export SPARK_HOME=/usr/lib/spark
export JAVA_HOME=/usr/java/jdk1.7.0_67-cloudera

当我运行Mahout Spark-Shell时，出现以下错误消息。

java.lang.NoClassDefFoundError: com/sun/jersey/spi/container/servlet/ServletContainer
    at org.apache.spark.status.api.v1.ApiRootResource$.getServletHandler(ApiRootResource.scala:187)
    at org.apache.spark.ui.SparkUI.initialize(SparkUI.scala:68)
    at org.apache.spark.ui.SparkUI.<init>(SparkUI.scala:74)
    at org.apache.spark.ui.SparkUI$.create(SparkUI.scala:190)
    at org.apache.spark.ui.SparkUI$.createLiveUI(SparkUI.scala:141)
    at org.apache.spark.SparkContext.<init>(SparkContext.scala:466)
    at org.apache.mahout.sparkbindings.package$.mahoutSparkContext(package.scala:91)
    at org.apache.mahout.sparkbindings.shell.MahoutSparkILoop.createSparkContext(MahoutSparkILoop.scala:89)
...

然后是：

Mahout distributed context is available as "implicit val sdc".
java.lang.NullPointerException
    at org.apache.spark.sql.execution.ui.SQLListener.<init>(SQLListener.scala:34)
    at org.apache.spark.sql.SQLContext.<init>(SQLContext.scala:77)
    at org.apache.spark.repl.SparkILoop.createSQLContext(SparkILoop.scala:1033)
    at $iwC$$iwC.<init>(<console>:11)
    at $iwC.<init>(<console>:19)

Answer 1

在spark-env.sh中，

加

导出SPARK_DIST_CLASSPATH = $（/ path / to / hadoop / bin / hadoop类路径）

并确保jersey-servlet-1.9.jar在类路径中。

请仔细阅读所有* -env.sh脚本，并尽可能明确地设置环境变量，检查每个环境变量，然后检查日志中是否有错误。

cd /查找。 -name jersey-servlet-1.9.jar，并确保找到该文件的路径在您的类路径上

编辑：将jersey-server-1.9.jar添加到$ MAHOUT_HOME / lib /目录。