安装Linux、JDK等等解压:tar -zxvf spark-2.1.0-bin-hadoop2.7.tgz -C ~/training/由于Spark的脚本命令和Hadoop有冲突,只设置一个即可(不
Spark HA:两种方式 参考讲义(1)基于文件目录: 开发测试(单机环境) (*)将Worker和Applicatio
1.Scala 版package demoimport org.apache.spark.{SparkConf, SparkContext}object SparkDemo { def main(args: Array[String]): Uew SparkConf() sparkConf.se...
spark-submit: 相当于 hadoop jar 命令 ---> 提交MapReduce任务(jar文件 ) 提交Spark的任务(jar文件 ) Spark提
测试数据:192.168.88.1 - - [30/Jul/2017:12:53:43 +0800] "GET /MyDemoWeb/ HTTP/1.1" 200 259192.168.200 713192.168.88.1 - - [30/J...
源码包: org.apache.spark.rdddef coalesce(numPartitions: Int, shuffle: Boolean = false, partitionCoalescer: Option[PartitionCoale
scala> val jd = spark.read.format("jdbc").option("url","jdbc:oracle:thin:@192.168.163.134:1521:orcl").option("dn("user","scott").option("password&
import java.sql.DriverManagerimport org.apache.spark.streaming.{Seconds, StreamingContext}import org.apache.spark.{SparkConf
org.datanucleus.store.rdbms.connectionpool.DatastoreDriverNotFoundException: The specified datastore driver ("com.my
Shuffle参数调优spark.shuffle.file.buffer 默认值:32k 参数说明:该参数用于设置shuffle write task的BufferedOutputStream的
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