Questions tagged as 'hadoop'

Tagged questions
1
answer

How to start ZooKeeper Command Line Interface?

I want to implement an hbase database and I have seen that I need ZooKeeper. I followed tutorialspoint.com tutorial but when I try to start ZooKeeper Command Line Interface (CLI) I got the following error: mike@mike-thinks:~/zookeeper-3.4.10...
asked by 04.12.2017 / 13:09
0
answers

The DataNode process is not running in Hadoop 2.9.2 and 18.10

When I start start-dfs.sh 18/11/28 18:26:34 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable Starting namenodes on [localhost] localhost: starting namenode, loggi...
asked by 28.11.2018 / 19:04
0
answers

Load csv file in hdfs

I am trying to upload a csv file to the distributed file system hdfs with: hadoop fs -put But I get the following error put ´.´ : No such file or directory: hdfs://localhost:54310/user/hduser     
asked by 31.10.2018 / 07:46
0
answers

connection exception hadoop

I have a problem installing the hadoop machine, following the steps in its documentation, however, when entering the command bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.9.1.jar grep input output 'dfs[a-z.]+' I get the...
asked by 20.05.2018 / 06:17
0
answers

Sanbox hortonWorks with visual studio 2017

I installed the virtual machine of HDP 2.6 with virtual box and booted it and accessed its ambari portal but when I try to access from visual studio through the HDINSIGTH emulator option and fill in the default data the configuration does not le...
asked by 29.04.2018 / 14:17
0
answers

Error on port 9000?

My doubt arises in this part:    cat: Call from HpPh / 10.0.2.15 to localhost: 9000 failed What should I do?     
asked by 08.03.2018 / 20:26
0
answers

How does Yarn interact with the NameNode?

When we store data, the datanode stores the metadata that has the location of the blocks of the files that we have stored. But I wonder, if we run a task with Yarn, he looks for the hardware resources to execute that task. But at some poin...
asked by 18.02.2018 / 17:39
1
answer

How to import a long csv file in Hbase?

Good afternoon, I try to import a csv file in Hbase that is very long. It is dealing with food products: ingredients, nutrition, labels. It comes from Open Food Facts. It lists information about food products: ingredients, nutritional informatio...
asked by 30.11.2017 / 15:03
1
answer

Help with the following problem

Good morning, I am trying to solve the following problems: "Count number of vowels and consonants" using the hadoop platform, MapReduce technique. The question that happens to me is the following: When executing the algorithm I get this outpu...
asked by 15.11.2017 / 21:41