当我执行以下命令时,我的yarn版本是hadop-2.4.0.x,spark是spark-1.5.1-bin-hadoop2.4,spark-cassandra-connector是spark-cassandra-connector_2.10-1.5.0-M2:
bin/spark-shell --driver-class-path $(echo lib/*.jar | sed 's/ /:/g') --master yarn-client
--deploy-mode client --conf spark.cassandra.connection.host=192.21.0.209
--conf spark.cassandra.auth.username=username --conf spark.cassandra.auth.password=password --conf spark.sql.dialect=sql
--jars lib/guava-16.0.jar,spark-cassandra-connector_2.10-1.5.0-M2.jar,lib/cassandra-driver-core-2.2.0-rc3.jar启动后,我在提示符下输入了以下scala:
import org.apache.spark.sql.cassandra.CassandraSQLContext
import org.apache.spark.sql.{DataFrame, SaveMode}
import org.apache.spark.{Logging, SparkConf, SparkContext}
import org.joda.time.{DateTime, Days, LocalDate}
val cc = new CassandraSQLContext(sc)
val rdd: DataFrame = cc.sql("select user_id,tag_models,dmp_province," +
"zp_gender,zp_age,zp_edu,stg_stage,zp_income,type " +
"from user_center.users_test") 我得到了一个典型的错误:
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/ListenableFuture;在google和stackoverflower中搜索这个错误后,我知道是不同版本的guava之间的冲突导致了这个错误,并且发现hadoop 2.4使用guava-11.0.2,而spark-cassandra-connector_2.10-1.5.0-M2使用guava-16.0.1。
如何解决这类错误,任何建议都将不胜感激!
更新
很抱歉测试时间太长了!
现在,对于spark-submit,我在我的测试纱线集群中成功地测试了这个分辨率Making Hadoop 2.6 + Spark-Cassandra Driver Play Nice Together
发布于 2016-03-16 05:04:25
在Hadoop配置中,将以下属性添加到hadoop-env.sh
HADOOP_USER_CLASSPATH_FIRST=true在Spark配置中也有一个属性,你可以将它设置为真正的spark.driver.userClassPathFirst,但它仍然是一个实验性的,只在集群模式下使用(看看spark documentation)。就我个人而言,我没有尝试过这个属性,但由于文档中提供了它,我认为它值得一提
https://stackoverflow.com/questions/36004072
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