Hi Som ,
Did you know that simple demo program of reading characters from file didn't
work ?
Who wrote that simple hello world type little program ?
jane thorpe
janethor...@aol.com
-----Original Message-----
From: jane thorpe <janethor...@aol.com>
To: somplasticllc <somplastic...@gmail.com>; user <user@spark.apache.org>
Sent: Fri, 3 Apr 2020 2:44
Subject: Re: HDFS file hdfs://127.0.0.1:9000/hdfs/spark/examples/README.txt
Thanks darling
I tried this and worked
hdfs getconf -confKey fs.defaultFS
hdfs://localhost:9000
scala> :paste
// Entering paste mode (ctrl-D to finish)
val textFile =
sc.textFile("hdfs://127.0.0.1:9000/hdfs/spark/examples/README.txt")
val counts = textFile.flatMap(line => line.split(" "))
.map(word => (word, 1))
.reduceByKey(_ + _)
counts.saveAsTextFile("hdfs://127.0.0.1:9000/hdfs/spark/examples/README7.out")
// Exiting paste mode, now interpreting.
textFile: org.apache.spark.rdd.RDD[String] =
hdfs://127.0.0.1:9000/hdfs/spark/examples/README.txt MapPartitionsRDD[91] at
textFile at <pastie>:27
counts: org.apache.spark.rdd.RDD[(String, Int)] = ShuffledRDD[94] at
reduceByKey at <pastie>:30
scala> :quit
jane thorpe
janethor...@aol.com
-----Original Message-----
From: Som Lima <somplastic...@gmail.com>
CC: user <user@spark.apache.org>
Sent: Tue, 31 Mar 2020 23:06
Subject: Re: HDFS file
Hi Jane
Try this example
https://github.com/apache/spark/blob/master/examples/src/main/scala/org/apache/spark/examples/streaming/HdfsWordCount.scala
Som
On Tue, 31 Mar 2020, 21:34 jane thorpe, <janethor...@aol.com.invalid> wrote:
hi,
Are there setup instructions on the website for
spark-3.0.0-preview2-bin-hadoop2.7I can run same program for hdfs format
val textFile = sc.textFile("hdfs://...")
val counts = textFile.flatMap(line => line.split(" "))
.map(word => (word, 1))
.reduceByKey(_ + _)
counts.saveAsTextFile("hdfs://...")
val textFile = sc.textFile("/data/README.md")val counts = textFile.flatMap(line
=> line.split(" ")) .map(word => (word, 1))
.reduceByKey(_ + _)counts.saveAsTextFile("/data/wordcount")
textFile: org.apache.spark.rdd.RDD[String] = /data/README.md
MapPartitionsRDD[23] at textFile at <console>:28counts:
org.apache.spark.rdd.RDD[(String, Int)] = ShuffledRDD[26] at reduceByKey at
<console>:31
br
Jane
