MR和Spark都提供了local模式,即在单机上模拟多计算节点来执行任务 pacemaker docker 集群 hadoop Docker docker docker pulsar集群部署 docker spark集群 本文是《docker下,极速搭建spark集群(含hdfs集群)》的续篇,前文将spark集群搭建成功并进行了简单的验证,但是存在以下几个小问题:spark只有一个work节点,只适合处理小...
from pyspark import SparkContext, SparkConf conf = SparkConf().setAppName("test").setMaster("local[4]") sc = SparkContext(conf=conf) print("spark version:",pyspark.__version__) rdd = sc.parallelize(["hello","spark"]) print(rdd.reduce(lambda x,y:x+' '+y)) 1. 2. 3. 4. 5....
frompysparkimportSparkConf,SparkContextconf=SparkConf().setMaster("local").setAppName("MY First Ap...
frompysparkimportSparkConf,SparkContextconf=SparkConf().setMaster("local").setAppName("MY First Ap...