我每次运行带有cassandra连接器的spark中的scala程序时都会收到此错误
Exception during preparation of SELECT count(*) FROM "eventtest"."simpletbl" WHERE token("a") > ? AND token("a") <= ?
ALLOW FILTERING: class org.joda.time.DateTime in JavaMirror with org.apache.spark.util.MutableURLClassLoader@23041911 of type class org.apache.spark.util.MutableURLClassLoader
with classpath
[file:
/home/sysadmin/ApacheSpark/spark-1.4.0-bin-hadoop2.4/work/app-20150711142923-0023/0/./spark-cassandra-connector_2.10-1.4.0-M1.jar
,file:
/home/sysadmin/ApacheSpark/spark-1.4.0-bin-hadoop2.4/work/app-20150711142923-0023/0/./cassandra-driver-core-2.1.5.jar,file:
/home/sysadmin/ApacheSpark/spark-1.4.0-bin-hadoop2.4/work/app-20150711142923-0023/0/./cassandra-spark-job_2.10-1.0.jar,file:
/home/sysadmin/ApacheSpark/spark-1.4.0-bin-hadoop2.4/work/app-20150711142923-0023/0/./guava-18.0.jar,file:
/home/sysadmin/ApacheSpark/spark-1.4.0-bin-hadoop2.4/work/app-20150711142923-0023/0/./joda-convert-1.2.jar,file:
/home/sysadmin/ApacheSpark/spark-1.4.0-bin-hadoop2.4/work/app-20150711142923-0023/0/./cassandra-clientutil-2.1.5.jar,file:
/home/sysadmin/ApacheSpark/spark-1.4.0-bin-hadoop2.4/work/app-20150711142923-0023/0/./google-collections-1.0.jar] and parent being sun.misc.Launcher$AppClassLoader@6132b73b of type class sun.misc.Launcher$AppClassLoader with classpath [file:
/home/sysadmin/ApacheSpark/spark-1.4.0-bin-hadoop2.4/conf/,file:
/home/sysadmin/ApacheSpark/spark-1.4.0-bin-hadoop2.4/lib/spark-assembly-1.4.0-hadoop2.4.0.jar,file:
/home/sysadmin/ApacheSpark/spark-1.4.0-bin-hadoop2.4/lib/datanucleus-api-jdo-3.2.6.jar,file:
/home/sysadmin/ApacheSpark/spark-1.4.0-bin-hadoop2.4/lib/datanucleus-core-3.2.10.jar,file:
/home/sysadmin/ApacheSpark/spark-1.4.0-bin-hadoop2.4/lib/datanucleus-rdbms-3.2.9.jar] and parent being sun.misc.Launcher$ExtClassLoader@489bb457 of type class sun.misc.Launcher$ExtClassLoader with classpath [file:
/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/dnsns.jar,file:
/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/sunpkcs11.jar,file:
/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/sunjce_provider.jar,file:
/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/zipfs.jar,file:
/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/libatk-wrapper.so,file:
/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/java-atk-wrapper.jar,file:
/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/localedata.jar,file:
/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/icedtea-sound.jar] and parent being primordial classloader with boot classpath [/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/resources.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jsse.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jce.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/charsets.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rhino.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jfr.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/classes] not found.
at com.datastax.spark.connector.rdd.CassandraTableScanRDD.createStatement(CassandraTableScanRDD.scala:163)
这是我的计划
/** CassandraJob.scala **/
import com.datastax.spark.connector._
import org.apache.spark._
object CassandraJob {
def main(args: Array[String]) {
val conf = new SparkConf(true)
.set("spark.cassandra.connection.host", "172.28.0.164")
.set("soark.cassandra.connection.rpc.port", "9160")
val sc = new SparkContext(conf)
val rdd = sc.cassandraTable("eventtest", "simpletbl");
println("cassandra row count : " + rdd.count + ", cassanra row : " + rdd.first)
}
}
我使用sbt compile,sbt包构建文件
这是我提交火花工作的方式
./bin/spark-submit --jars $(echo /home/sysadmin/ApacheSpark/jar/*.jar | tr ' ' ',') --class "CassandraJob" --master spark://noi-cs-01:7077 /home/sysadmin/ApacheSparkProj/CassandraJob/target/scala-2.10/cassandra-spark-job_2.10-1.0.jar
1 回答
我猜你使用的
org.joda.time.DateTime
在你提交的jar中丢失了 . 只需将此jar添加到您的依赖项:... --jars $(echo /home/sysadmin/ApacheSpark/jar/*.jar | tr ' ' ','),/PATH/TO/DOWNLOADED/JODATIME/JAR --class "CassandraJob..."
另一种方法是使用
sbt assembly
plugin而不是sbt package
在sbt和程序集胖jar中的库依赖项中包含org.joda.time.DateTime
.