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Recent questions tagged hadoop
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Q: hadoop.mapred vs hadoop.mapreduce?
Why are there two separate packages map-reduce package in Apache's hadoop package tree: org.apache.hadoop.mapred ... separated out? Select the correct answer from above options...
asked
Jan 26, 2022
in
Education
by
JackTerrance
hadoop
big-data
mapreduce
0
votes
Q: Hadoop “Unable to load native-hadoop library for your platform” warning
I installed Hadoop on the server running CentOs. As I run start-dfs.shor stop-dfs.sh I got the following error : ... I have to do? Select the correct answer from above options...
asked
Jan 22, 2022
in
Education
by
JackTerrance
hadoop
hadoop2
nativelibrary
0
votes
Q: What exactly is hadoop namenode formatting?
What is namenode formatting? What does it involve. I'm looking to understand namenode formatting and its use. Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
hadoop
formatting
principles
0
votes
Q: what's the difference between “hadoop fs” shell commands and “hdfs dfs” shell commands?
Are they same? In my view "hadoop fs" command shows the hdfs files and the "hdfs dfs" command shows the local files, why is that? Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
hadoop
hdfs
0
votes
Q: Hadoop Mapreduce word count Program
I am having some trouble writing the code for wordcount program using MapReduce, I could use some help. Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
hadoop
big-data
bigdata
mapreduce
hdfs
0
votes
Q: Which one is the latest stable version of Hadoop?
I plan on downloading Hadoop for learning purposes, can someone tell me what is the latest build or version in Hadoop? Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
hadoop
0
votes
Q: How do I output the results of a HiveQL query to CSV?
I want to put my Results of a hiveql query into a CSV file. How can I do it? I tried doing this, but ... select goods from the table; Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
database
hadoop
hive
bigdata
hiveql
0
votes
Q: Can apache spark run without hadoop?
Is spark dependent on Hadoop? If not, then I can run Spark without Hadoop right? Will I miss any features if I do Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
hadoop
amazon-s3
apache-spark
mapreduce
mesos
0
votes
Q: What is the difference between Mongodb and Hadoop?
I tried reading from various sources but I am still not very clear about their difference. What majorly seperates Mongodb and Hadoop? Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
hadoop
bigdata
0
votes
Q: The way to check a HDFS directory's size? Ask
How can I find the size of a directory, using Hadoop? Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
hadoop
command-line
directory
hdfs
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