我正在尝试通过 dataproc 上的 spark-shell 使用 spark-cassandra-connector，但是我无法连接到我的集群。似乎存在版本不匹配，因为类路径包含来自其他地方的更旧的番石榴版本，即使我在启动时指定了正确的版本。我怀疑这可能是由默认情况下放入类路径的所有 Hadoop 依赖项引起的。
无论如何让 spark-shell 只使用正确版本的番石榴，而不摆脱所有与 Hadoop 相关的 dataproc 包含的 jars？
相关资料：
启动 spark-shell，显示它具有正确版本的 Guava：$ spark-shell --packages com.datastax.spark:spark-cassandra-connector_2.10:1.5.0-M3
:: loading settings :: url = jar:file:/usr/lib/spark/lib/spark-assembly-1.5.2-hadoop2.7.1.jar!/org/apache/ivy/core/settings/ivysettings.xml
com.datastax.spark#spark-cassandra-connector_2.10 added as a dependency
:: resolving dependencies :: org.apache.spark#spark-submit-parent;1.0
confs: [default]
found com.datastax.spark#spark-cassandra-connector_2.10;1.5.0-M3 in central
found org.apache.cassandra#cassandra-clientutil;2.2.2 in central
found com.datastax.cassandra#cassandra-driver-core;3.0.0-alpha4 in central
found io.netty#netty-handler;4.0.27.Final in central
found io.netty#netty-buffer;4.0.27.Final in central
found io.netty#netty-common;4.0.27.Final in central
found io.netty#netty-transport;4.0.27.Final in central
found io.netty#netty-codec;4.0.27.Final in central
found com.codahale.metrics#metrics-core;3.0.2 in central
found org.slf4j#slf4j-api;1.7.5 in central
found org.apache.commons#commons-lang3;3.3.2 in central
found com.google.guava#guava;16.0.1 in central
found org.joda#joda-convert;1.2 in central
found joda-time#joda-time;2.3 in central
found com.twitter#jsr166e;1.1.0 in central
found org.scala-lang#scala-reflect;2.10.5 in central
:: resolution report :: resolve 502ms :: artifacts dl 10ms
:: modules in use:
com.codahale.metrics#metrics-core;3.0.2 from central in [default]
com.datastax.cassandra#cassandra-driver-core;3.0.0-alpha4 from central in [default]
com.datastax.spark#spark-cassandra-connector_2.10;1.5.0-M3 from central in [default]
com.google.guava#guava;16.0.1 from central in [default]
com.twitter#jsr166e;1.1.0 from central in [default]
io.netty#netty-buffer;4.0.27.Final from central in [default]
io.netty#netty-codec;4.0.27.Final from central in [default]
io.netty#netty-common;4.0.27.Final from central in [default]
io.netty#netty-handler;4.0.27.Final from central in [default]
io.netty#netty-transport;4.0.27.Final from central in [default]
joda-time#joda-time;2.3 from central in [default]
org.apache.cassandra#cassandra-clientutil;2.2.2 from central in [default]
org.apache.commons#commons-lang3;3.3.2 from central in [default]
org.joda#joda-convert;1.2 from central in [default]
org.scala-lang#scala-reflect;2.10.5 from central in [default]
org.slf4j#slf4j-api;1.7.5 from central in [default]
---------------------------------------------------------------------
| | modules || artifacts |
| conf | number| search|dwnlded|evicted|| number|dwnlded|
---------------------------------------------------------------------
| default | 16 | 0 | 0 | 0 || 16 | 0 |
---------------------------------------------------------------------
:: retrieving :: org.apache.spark#spark-submit-parent
confs: [default]
0 artifacts copied, 16 already retrieved (0kB/12ms)
Welcome to
____ __
/ __/__ ___ _____/ /__
_\ \/ _ \/ _ `/ __/ '_/
/___/ .__/\_,_/_/ /_/\_\ version 1.5.2
/_/
Using Scala version 2.10.4 (OpenJDK 64-Bit Server VM, Java 1.8.0_66-internal)
Type in expressions to have them evaluated.
Type :help for more information.
15/12/10 17:38:46 WARN org.apache.spark.metrics.MetricsSystem: Using default name DAGScheduler for source because spark.app.id is not set.
Spark context available as sc.
ivysettings.xml file not found in HIVE_HOME or HIVE_CONF_DIR,/etc/hive/conf.dist/ivysettings.xml will be used
ivysettings.xml file not found in HIVE_HOME or HIVE_CONF_DIR,/etc/hive/conf.dist/ivysettings.xml will be used
15/12/10 17:38:54 WARN org.apache.hadoop.util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
15/12/10 17:38:54 WARN org.apache.hadoop.hdfs.shortcircuit.DomainSocketFactory: The short-circuit local reads feature cannot be used because libhadoop cannot be loaded.
SQL context available as sqlContext.
进行初始连接时的堆栈跟踪：
java.io.IOException: Failed to open native connection to Cassandra at {10.240.0.7}:9042
at com.datastax.spark.connector.cql.CassandraConnector$.com$datastax$spark$connector$cql$CassandraConnector$$createSession(CassandraConnector.scala:162)
at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$2.apply(CassandraConnector.scala:148)
at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$2.apply(CassandraConnector.scala:148)
at com.datastax.spark.connector.cql.RefCountedCache.createNewValueAndKeys(RefCountedCache.scala:31)
at com.datastax.spark.connector.cql.RefCountedCache.acquire(RefCountedCache.scala:56)
at com.datastax.spark.connector.cql.CassandraConnector.openSession(CassandraConnector.scala:81)
at com.datastax.spark.connector.cql.CassandraConnector.withSessionDo(CassandraConnector.scala:109)
at com.datastax.spark.connector.cql.CassandraConnector.withClusterDo(CassandraConnector.scala:120)
at com.datastax.spark.connector.cql.Schema$.fromCassandra(Schema.scala:249)
at com.datastax.spark.connector.rdd.CassandraTableRowReaderProvider$class.tableDef(CassandraTableRowReaderProvider.scala:51)
at com.datastax.spark.connector.rdd.CassandraTableScanRDD.tableDef$lzycompute(CassandraTableScanRDD.scala:59)
at com.datastax.spark.connector.rdd.CassandraTableScanRDD.tableDef(CassandraTableScanRDD.scala:59)
at com.datastax.spark.connector.rdd.CassandraTableRowReaderProvider$class.verify(CassandraTableRowReaderProvider.scala:146)
at com.datastax.spark.connector.rdd.CassandraTableScanRDD.verify(CassandraTableScanRDD.scala:59)
at com.datastax.spark.connector.rdd.CassandraTableScanRDD.getPartitions(CassandraTableScanRDD.scala:143)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:239)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:237)
at scala.Option.getOrElse(Option.scala:120)
at org.apache.spark.rdd.RDD.partitions(RDD.scala:237)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:1921)
at org.apache.spark.rdd.RDD.count(RDD.scala:1125)
at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:34)
at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:45)
at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:47)
at $iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:49)
at $iwC$$iwC$$iwC$$iwC.<init>(<console>:51)
at $iwC$$iwC$$iwC.<init>(<console>:53)
at $iwC$$iwC.<init>(<console>:55)
at $iwC.<init>(<console>:57)
at <init>(<console>:59)
at .<init>(<console>:63)
at .<clinit>(<console>)
at .<init>(<console>:7)
at .<clinit>(<console>)
at $print(<console>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:1065)
at org.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1340)
at org.apache.spark.repl.SparkIMain.loadAndRunReq$1(SparkIMain.scala:840)
at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:871)
at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:819)
at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$pasteCommand(SparkILoop.scala:825)
at org.apache.spark.repl.SparkILoop$$anonfun$standardCommands$8.apply(SparkILoop.scala:345)
at org.apache.spark.repl.SparkILoop$$anonfun$standardCommands$8.apply(SparkILoop.scala:345)
at scala.tools.nsc.interpreter.LoopCommands$LoopCommand$$anonfun$nullary$1.apply(LoopCommands.scala:65)
at scala.tools.nsc.interpreter.LoopCommands$LoopCommand$$anonfun$nullary$1.apply(LoopCommands.scala:65)
at scala.tools.nsc.interpreter.LoopCommands$NullaryCmd.apply(LoopCommands.scala:76)
at org.apache.spark.repl.SparkILoop.command(SparkILoop.scala:809)
at org.apache.spark.repl.SparkILoop.processLine$1(SparkILoop.scala:657)
at org.apache.spark.repl.SparkILoop.innerLoop$1(SparkILoop.scala:665)
at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$loop(SparkILoop.scala:670)
at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply$mcZ$sp(SparkILoop.scala:997)
at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply(SparkILoop.scala:945)
at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply(SparkILoop.scala:945)
at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135)
at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$process(SparkILoop.scala:945)
at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:1059)
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$$runMain(SparkSubmit.scala:674)
at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:180)
at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:205)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:120)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.lang.NoSuchMethodError: com.google.common.util.concurrent.Futures.withFallback(Lcom/google/common/util/concurrent/ListenableFuture;Lcom/google/common/util/concurrent/FutureFallback;Ljava/util/concurrent/Executor;)Lcom/google/common/util/concurrent/Listenab
leFuture;
at com.datastax.driver.core.Connection.initAsync(Connection.java:178)
at com.datastax.driver.core.Connection$Factory.open(Connection.java:742)
at com.datastax.driver.core.ControlConnection.tryConnect(ControlConnection.java:240)
at com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:187)
at com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:79)
at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1393)
at com.datastax.driver.core.Cluster.getMetadata(Cluster.java:402)
at com.datastax.spark.connector.cql.CassandraConnector$.com$datastax$spark$connector$cql$CassandraConnector$$createSession(CassandraConnector.scala:155)
... 70 more