Spark Cassandra连接器：无法打开到Cassandra的本机连接

我是Spark和Cassandra的新手。在尝试提交spark作业时，我在连接Cassandra时出错

详情：

版本：

Spark : 1.3.1 (build for hadoop 2.6 or later : spark-1.3.1-bin-hadoop2.6)
Cassandra : 2.0
Spark-Cassandra-Connector: 1.3.0-M1
scala : 2.10.5

Spark和Cassandra在一个虚拟集群上 群集详细信息：

Spark Master : 192.168.101.13
Spark Slaves : 192.168.101.11 and 192.168.101.12
Cassandra Nodes: 192.168.101.11 (seed node) and 192.168.101.12

我正试图通过我的客户机（笔记本电脑）-172.16.0.6提交作业。 在谷歌搜索此错误后，我确保可以从客户机ping集群上的所有机器：spark master/slaves和cassandra节点，并在所有机器上禁用防火墙。但我是 仍在与这个错误作斗争

卡桑德拉·亚马尔

listen_address: 192.168.101.11 (192.168.101.12 on other cassandra node)
start_native_transport: true
native_transport_port: 9042
start_rpc: true
rpc_address: 192.168.101.11 (192.168.101.12 on other cassandra node)
rpc_port: 9160

我正在尝试运行一个最小的示例作业

import org.apache.spark.SparkContext
import org.apache.spark.SparkContext._
import org.apache.spark.SparkConf
import org.apache.spark.rdd.RDD
import com.datastax.spark.connector._

val rdd = sc.cassandraTable("test", "words")
rdd.toArray.foreach(println)

为了提交作业，我使用spark shell（：在spark shell中粘贴代码）：

我得到的错误是：

warning: there were 1 deprecation warning(s); re-run with -deprecation for details
**java.io.IOException: Failed to open native connection to Cassandra at {192.168.101.11}:9042**
    at com.datastax.spark.connector.cql.CassandraConnector$.com$datastax$spark$connector$cql$CassandraConnector$$createSession(CassandraConnector.scala:181)
    at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$2.apply(CassandraConnector.scala:167)
    at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$2.apply(CassandraConnector.scala:167)
    at com.datastax.spark.connector.cql.RefCountedCache.createNewValueAndKeys(RefCountedCache.scala:31)
    at com.datastax.spark.connector.cql.RefCountedCache.acquire(RefCountedCache.scala:56)
    at com.datastax.spark.connector.cql.CassandraConnector.openSession(CassandraConnector.scala:76)
    at com.datastax.spark.connector.cql.CassandraConnector.withSessionDo(CassandraConnector.scala:104)
    at com.datastax.spark.connector.cql.CassandraConnector.withClusterDo(CassandraConnector.scala:115)
    at com.datastax.spark.connector.cql.Schema$.fromCassandra(Schema.scala:243)
    at com.datastax.spark.connector.rdd.CassandraTableRowReaderProvider$class.tableDef(CassandraTableRowReaderProvider.scala:49)
    at com.datastax.spark.connector.rdd.CassandraTableScanRDD.tableDef$lzycompute(CassandraTableScanRDD.scala:59)
    at com.datastax.spark.connector.rdd.CassandraTableScanRDD.tableDef(CassandraTableScanRDD.scala:59)
    at com.datastax.spark.connector.rdd.CassandraTableRowReaderProvider$class.verify(CassandraTableRowReaderProvider.scala:148)
    at com.datastax.spark.connector.rdd.CassandraTableScanRDD.verify(CassandraTableScanRDD.scala:59)
    at com.datastax.spark.connector.rdd.CassandraTableScanRDD.getPartitions(CassandraTableScanRDD.scala:118)
    at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:219)
    at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:217)
    at scala.Option.getOrElse(Option.scala:120)
    at org.apache.spark.rdd.RDD.partitions(RDD.scala:217)
    at org.apache.spark.SparkContext.runJob(SparkContext.scala:1512)
    at org.apache.spark.rdd.RDD.collect(RDD.scala:813)
    at org.apache.spark.rdd.RDD.toArray(RDD.scala:833)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:33)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:38)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:40)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:42)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:44)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:46)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:48)
    at $iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:50)
    at $iwC$$iwC$$iwC$$iwC.<init>(<console>:52)
    at $iwC$$iwC$$iwC.<init>(<console>:54)
    at $iwC$$iwC.<init>(<console>:56)
    at $iwC.<init>(<console>:58)
    at <init>(<console>:60)
    at .<init>(<console>:64)
    at .<clinit>(<console>)
    at .<init>(<console>:7)
    at .<clinit>(<console>)
    at $print(<console>)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:1065)
    at org.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1338)
    at org.apache.spark.repl.SparkIMain.loadAndRunReq$1(SparkIMain.scala:840)
    at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:871)
    at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:819)
    at org.apache.spark.repl.SparkILoop.reallyInterpret$1(SparkILoop.scala:856)
    at org.apache.spark.repl.SparkILoop.interpretStartingWith(SparkILoop.scala:901)
    at org.apache.spark.repl.SparkILoop.command(SparkILoop.scala:813)
    at org.apache.spark.repl.SparkILoop.processLine$1(SparkILoop.scala:656)
    at org.apache.spark.repl.SparkILoop.innerLoop$1(SparkILoop.scala:664)
    at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$loop(SparkILoop.scala:669)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply$mcZ$sp(SparkILoop.scala:996)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply(SparkILoop.scala:944)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply(SparkILoop.scala:944)
    at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135)
    at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$process(SparkILoop.scala:944)
    at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:1058)
    at org.apache.spark.repl.Main$.main(Main.scala:31)
    at org.apache.spark.repl.Main.main(Main.scala)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:569)
    at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:166)
    at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:189)
    at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:110)
    at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
**Caused by: com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: /192.168.101.11:9042 (com.datastax.driver.core.TransportException: [/192.168.101.11:9042] Connection has been closed))**
    at com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:223)
    at com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:78)
    at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1236)
    at com.datastax.driver.core.Cluster.getMetadata(Cluster.java:333)
    at com.datastax.spark.connector.cql.CassandraConnector$.com$datastax$spark$connector$cql$CassandraConnector$$createSession(CassandraConnector.scala:174)
    ... 71 more

警告：有1个弃用警告；有关详细信息，请使用-deprecation重新运行
**java.io.IOException:无法在{192.168.101.11}:9042处打开到Cassandra的本机连接**
在com.datasax.spark.connector.cql.CassandraConnector$.com$datasax$spark$connector$cql$CassandraConnector$$createSession（CassandraConnector.scala:181）
在com.datastax.spark.connector.cql.CassandraConnector$$anonfun$2.apply上（CassandraConnector.scala:167）
在com.datastax.spark.connector.cql.CassandraConnector$$anonfun$2.apply上（CassandraConnector.scala:167）
在com.datastax.spark.connector.cql.RefCountedCache.createNewValueAndKeys（RefCountedCache.scala:31）上
位于com.datastax.spark.connector.cql.RefCountedCache.acquire（RefCountedCache.scala:56）
在com.datasax.spark.connector.cql.CassandraConnector.openSession（CassandraConnector.scala:76）
在com.datasax.spark.connector.cql.CassandraConnector.withSessionDo上（CassandraConnector.scala:104）
在com.datasax.spark.connector.cql.CassandraConnector.withClusterDo（CassandraConnector.scala:115）上
在com.datasax.spark.connector.cql.Schema$.fromCassandra（Schema.scala:243）
在com.datastax.spark.connector.rdd.CassandraTableRowReaderProvider$class.tableDef上（CassandraTableRowReaderProvider.scala:49）
在com.datastax.spark.connector.rdd.CassandraTableScanRDD.tableDef$lzycompute上（CassandraTableScanRDD.scala:59）
在com.datastax.spark.connector.rdd.CassandraTableScanRDD.tableDef（CassandraTableScanRDD.scala:59）
在com.datastax.spark.connector.rdd.CassandraTableRowReaderProvider$class.verify上（CassandraTableRowReaderProvider.scala:148）
在com.datastax.spark.connector.rdd.CassandraTableScanRDD.verify上（CassandraTableScanRDD.scala:59）
在com.datasax.spark.connector.rdd.CassandraTableScanRDD.getPartitions（CassandraTableScanRDD.scala:118）
位于org.apache.spark.rdd.rdd$$anonfun$partitions$2.apply（rdd.scala:219）
位于org.apache.spark.rdd.rdd$$anonfun$partitions$2.apply（rdd.scala:217）
在scala.Option.getOrElse（Option.scala:120）
位于org.apache.spark.rdd.rdd.partitions（rdd.scala:217）
位于org.apache.spark.SparkContext.runJob（SparkContext.scala:1512）
位于org.apache.spark.rdd.rdd.collect（rdd.scala:813）
位于org.apache.spark.rdd.rdd.toArray（rdd.scala:833）
在$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC。（：33）
在$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC。（：38）
在$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC。（：40）
在$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC。（：42）
在$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC。（：44）
在$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC。（：46）
$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC。（：48）
在$iwC$$iwC$$iwC$$iwC$$iwC。（：50）
在$iwC$$iwC$$iwC$$iwC。（：52）
在$iwC$$iwC$$iwC。（:54）
$iwC$$iwC。（:56）
$iwC。（:58）
在（：60）
在。（：64）
在
在。（：7）
在
$print（）
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
位于sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）
在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）中
位于java.lang.reflect.Method.invoke（Method.java:497）
位于org.apache.spark.repl.SparkIMain$ReadEvalPrint.call（SparkIMain.scala:1065）
位于org.apache.spark.repl.SparkIMain$Request.loadAndRun（SparkIMain.scala:1338）
在org.apache.spark.repl.SparkIMain.loadAndRunReq$1（SparkIMain.scala:840）
在org.apache.spark.repl.SparkIMain.exploration上（SparkIMain.scala:871）
在org.apache.spark.repl.SparkIMain.exploration上（SparkIMain.scala:819）
在org.apache.spark.repl.SparkILoop.really上解释$1（SparkILoop.scala:856）
位于org.apache.spark.repl.SparkILoop.interpretatingstartingwith（SparkILoop.scala:901）
位于org.apache.spark.repl.SparkILoop.command（SparkILoop.scala:813）
位于org.apache.spark.repl.SparkILoop.processLine$1（SparkILoop.scala:656）
位于org.apache.spark.repl.SparkILoop.innerLoop$1（SparkILoop.scala:664）
位于org.apache.spark.repl.sparkloop.org$apache$spark$repl$sparkloop$$loop（sparkloop.scala:669）
在org.apache.spark.repl.sparkilop$$anonfun$org$apache$spark$repl$sparkilop$$process$1.apply$mcZ$sp（sparkilop.scala:996）
在org.apache.spark.repl.sparkilop$$anonfun$org$apache$spark$repl$sparkilop$$process$1.apply（sparkilop.scala:944）
在org.apache.spark.repl.sparkilop$$anonfun$org$apache$spark$repl$sparkilop$$process$1.apply（sparkilop.scala:944）
位于scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader（ScalaClassLoader.scala:135）
位于org.apache.spark.repl.sparkloop.org$apache$spark$repl$sparkloop$$process（sparkloop.scala:944）
位于org.apache.spark.repl.SparkILoop.process（SparkILoop.scala:1058）
位于org.apache.spark.repl.Main$.Main（Main.scala:31）
位于org.apache.spark.repl.Main.Main（Main.scala）
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
位于sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）
在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）中
位于java.lang.reflect.Method.invoke（Method.java:497）
位于org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain
warning: there were 1 deprecation warning(s); re-run with -deprecation for details
**java.io.IOException: Failed to open native connection to Cassandra at {192.168.101.11}:9042**
    at com.datastax.spark.connector.cql.CassandraConnector$.com$datastax$spark$connector$cql$CassandraConnector$$createSession(CassandraConnector.scala:181)
    at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$2.apply(CassandraConnector.scala:167)
    at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$2.apply(CassandraConnector.scala:167)
    at com.datastax.spark.connector.cql.RefCountedCache.createNewValueAndKeys(RefCountedCache.scala:31)
    at com.datastax.spark.connector.cql.RefCountedCache.acquire(RefCountedCache.scala:56)
    at com.datastax.spark.connector.cql.CassandraConnector.openSession(CassandraConnector.scala:76)
    at com.datastax.spark.connector.cql.CassandraConnector.withSessionDo(CassandraConnector.scala:104)
    at com.datastax.spark.connector.cql.CassandraConnector.withClusterDo(CassandraConnector.scala:115)
    at com.datastax.spark.connector.cql.Schema$.fromCassandra(Schema.scala:243)
    at com.datastax.spark.connector.rdd.CassandraTableRowReaderProvider$class.tableDef(CassandraTableRowReaderProvider.scala:49)
    at com.datastax.spark.connector.rdd.CassandraTableScanRDD.tableDef$lzycompute(CassandraTableScanRDD.scala:59)
    at com.datastax.spark.connector.rdd.CassandraTableScanRDD.tableDef(CassandraTableScanRDD.scala:59)
    at com.datastax.spark.connector.rdd.CassandraTableRowReaderProvider$class.verify(CassandraTableRowReaderProvider.scala:148)
    at com.datastax.spark.connector.rdd.CassandraTableScanRDD.verify(CassandraTableScanRDD.scala:59)
    at com.datastax.spark.connector.rdd.CassandraTableScanRDD.getPartitions(CassandraTableScanRDD.scala:118)
    at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:219)
    at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:217)
    at scala.Option.getOrElse(Option.scala:120)
    at org.apache.spark.rdd.RDD.partitions(RDD.scala:217)
    at org.apache.spark.SparkContext.runJob(SparkContext.scala:1512)
    at org.apache.spark.rdd.RDD.collect(RDD.scala:813)
    at org.apache.spark.rdd.RDD.toArray(RDD.scala:833)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:33)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:38)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:40)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:42)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:44)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:46)
    at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:48)
    at $iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:50)
    at $iwC$$iwC$$iwC$$iwC.<init>(<console>:52)
    at $iwC$$iwC$$iwC.<init>(<console>:54)
    at $iwC$$iwC.<init>(<console>:56)
    at $iwC.<init>(<console>:58)
    at <init>(<console>:60)
    at .<init>(<console>:64)
    at .<clinit>(<console>)
    at .<init>(<console>:7)
    at .<clinit>(<console>)
    at $print(<console>)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:1065)
    at org.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1338)
    at org.apache.spark.repl.SparkIMain.loadAndRunReq$1(SparkIMain.scala:840)
    at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:871)
    at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:819)
    at org.apache.spark.repl.SparkILoop.reallyInterpret$1(SparkILoop.scala:856)
    at org.apache.spark.repl.SparkILoop.interpretStartingWith(SparkILoop.scala:901)
    at org.apache.spark.repl.SparkILoop.command(SparkILoop.scala:813)
    at org.apache.spark.repl.SparkILoop.processLine$1(SparkILoop.scala:656)
    at org.apache.spark.repl.SparkILoop.innerLoop$1(SparkILoop.scala:664)
    at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$loop(SparkILoop.scala:669)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply$mcZ$sp(SparkILoop.scala:996)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply(SparkILoop.scala:944)
    at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply(SparkILoop.scala:944)
    at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135)
    at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$process(SparkILoop.scala:944)
    at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:1058)
    at org.apache.spark.repl.Main$.main(Main.scala:31)
    at org.apache.spark.repl.Main.main(Main.scala)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:569)
    at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:166)
    at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:189)
    at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:110)
    at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
**Caused by: com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: /192.168.101.11:9042 (com.datastax.driver.core.TransportException: [/192.168.101.11:9042] Connection has been closed))**
    at com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:223)
    at com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:78)
    at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1236)
    at com.datastax.driver.core.Cluster.getMetadata(Cluster.java:333)
    at com.datastax.spark.connector.cql.CassandraConnector$.com$datastax$spark$connector$cql$CassandraConnector$$createSession(CassandraConnector.scala:174)
    ... 71 more

var sc:SparkContext=_
val conf = new SparkConf().setAppName("Cassandra Demo").setMaster(master)
.set("spark.cassandra.connection.host", "192.168.101.11")
c=new SparkContext(conf)

val rdd = sc.cassandraTable("test", "words")
rdd.toArray.foreach(println)

The provided cassandra's version is 2.0
The provided cassandra-driver-core jar's version is 2.1.5

In this case, the included jar file should be cassandra-driver-core-2.0.0.jar