question create Analytics from http usng spark streaming in Archives of Support Questions (Read Only)

create Analytics from http usng spark streaming

Tdas — Tue, 21 Apr 2026 13:50:13 GMT

Hi My reqmnt is to create Analytics from http://10.3.9.34:9900/messages that is pull data from fromhttp://10.3.9.34:9900/messages and put this data in HDFS location /user/cloudera/flume and from HDFS create Analytics report using Tableau or HUE UI . i tried with below code at scala console of spark-shell of CDH5.5 but unable to fetch data from the http link

import org.apache.spark.SparkContext
val dataRDD = sc.textFile(“http://10.3.9.34:9900/messages”)dataRDD.collect().foreach(println)dataRDD.count()dataRDD.saveAsTextFile(“/user/cloudera/flume”)

I get below error at scala console :- java.io.IOException: No FileSystem for scheme: http at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2623) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2637) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:93) at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2680) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2662) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:379) at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296)

Re: create Analytics from http usng spark streaming

_Umesh — Wed, 03 Aug 2016 07:52:27 GMT

You are getting this exception because "sc.testFile" reads a text file from HDFS, a local file system (available on all nodes), or any Hadoop-supported file system URI.

You said that you want to get the data from URL and want to save it to HDFS, then you should do:

val data = scala.io.Source.fromURL("http://10.3.9.34:9900/messages").mkString
val list = data.split("\n").filter(_ != "")
val rdds = sc.parallelize(list)
rdds.saveAsTextFile(outputDirectory)

Re: create Analytics from http usng spark streaming

Tdas — Wed, 03 Aug 2016 17:24:16 GMT

First of all thanks Umesh,you got my half problem solved ,appreciate that really but only issue is now its not saving at hdfs location /user/cloudera/flume because of illegal character

scala> import org.apache.spark.SparkContext
import org.apache.spark.SparkContext

scala> val data = scala.io.Source.fromURL("http://10.3.9.34:9900/messages").mkString
data: String =
"Jul 31 03:38:01 MSAT-T8360-62-RHEL64-24-103934 kernel: imklog 4.6.2, log source = /proc/kmsg started.
Jul 31 03:38:01 MSAT-T8360-62-RHEL64-24-103934 rsyslogd: [origin software="rsyslogd" swVersion="4.6.2" x-pid="1342" x-info="http://www.rsyslog.com"] (re)start
Jul 31 03:38:01 MSAT-T8360-62-RHEL64-24-103934 rhsmd: This system is registered to RHN Classic
Aug 1 03:36:01 MSAT-T8360-62-RHEL64-24-103934 rhsmd: This system is registered to RHN Classic
Aug 2 03:16:01 MSAT-T8360-62-RHEL64-24-103934 rhsmd: This system is registered to RHN Classic
Aug 3 03:24:01 MSAT-T8360-62-RHEL64-24-103934 rhsmd: This system is registered to RHN Classic
"

scala> val list = data.split("\n").filter(_ != "")
list: Array[String] = Array(Jul 31 03:38:01 MSAT-T8360-62-RHEL64-24-103934 kernel: imklog 4.6.2, log source = /proc/kmsg started., Jul 31 03:38:01 MSAT-T8360-62-RHEL64-24-103934 rsyslogd: [origin software="rsyslogd" swVersion="4.6.2" x-pid="1342" x-info="http://www.rsyslog.com"] (re)start, Jul 31 03:38:01 MSAT-T8360-62-RHEL64-24-103934 rhsmd: This system is registered to RHN Classic, Aug 1 03:36:01 MSAT-T8360-62-RHEL64-24-103934 rhsmd: This system is registered to RHN Classic, Aug 2 03:16:01 MSAT-T8360-62-RHEL64-24-103934 rhsmd: This system is registered to RHN Classic, Aug 3 03:24:01 MSAT-T8360-62-RHEL64-24-103934 rhsmd: This system is registered to RHN Classic)

scala> val rdds = sc.parallelize(list)
rdds: org.apache.spark.rdd.RDD[String] = ParallelCollectionRDD[0] at parallelize at <console>:26

scala> rdds.saveAsTextFile(“/user/cloudera/flume”)
<console>:1: error: illegal character '\u201c'
rdds.saveAsTextFile(“/user/cloudera/flume”)
^
<console>:1: error: illegal character '\u201d'
rdds.saveAsTextFile(“/user/cloudera/flume”)
^

scala>

Can you please help

Re: create Analytics from http usng spark streaming

Tdas — Wed, 03 Aug 2016 18:43:21 GMT

Awesome here is working code

import org.apache.spark.SparkContext
val data = scala.io.Source.fromURL("http://10.3.9.34:9900/messages").mkString
val list = data.split("\n").filter(_ != "")
val rdds = sc.parallelize(list)
rdds.saveAsTextFile("/user/cloudera/spark/fromsource")

Compatibility Issues between Tableau 10.3 and Cloudera Hive 2.0

MuthuVenkatesh — Tue, 25 Sep 2018 14:59:18 GMT

Hello Experts,

We are upgrading Our Cloudera Hive from 1.3 to 2.0, Could you please let us know, if there is known issues related to this, i did a search in Tableau and Cloudera Community, but i didn't found any issues.

Thanks in Advance!!!

Regards,

Muthu Venkatesh