Recent questions tagged big-data

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How to upgrade from Hadoop 1.2 to Hadoop 2.2?

Nov 21, 2018 in Big Data Hadoop by digger
 • 26,740 points • 700 views
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1 answer

How to convert Spark data into CSV?

Nov 21, 2018 in Big Data Hadoop by digger
 • 26,740 points • 4,857 views
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What is the hdfs command to check free space available?

Nov 21, 2018 in Big Data Hadoop by digger
 • 26,740 points • 3,984 views
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What is SerDe in Hadoop Hive?

Nov 21, 2018 in Big Data Hadoop by Haman
 • 650 points • 5,944 views
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What is the meaning of Write Ahead Log in Hadoop?

Nov 21, 2018 in Big Data Hadoop by Haman
 • 650 points • 2,307 views
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1 answer

Hadoop: What does RDD mean?

Nov 21, 2018 in Big Data Hadoop by Haman
 • 650 points • 1,244 views
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1 answer

What is the difference between Apache ZooKeeper and Apache Oozie?

Nov 21, 2018 in Big Data Hadoop by Haman
 • 650 points • 4,809 views
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1 answer

Hadoop: How to get the column name along with the output in Hive?

Nov 21, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 5,092 views
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1 answer

Hadoop: Java code to get Hive table properties.

Nov 21, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 1,054 views
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Hadoop Java: org.apache.hadoop.conf.Configuration does not exist error

Nov 21, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 7,937 views
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1 answer

In Hadoop MapReduce, how can i set an Object as the Value for Map output?

Nov 21, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 1,114 views
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1 answer

Hadoop HDFS: Exception in createBlockOutputStream

Nov 21, 2018 in Big Data Hadoop by digger
 • 26,740 points • 5,266 views
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How to open/stream .zip files through Spark?

Nov 20, 2018 in Apache Spark by Neha
 • 6,300 points • 2,719 views
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Hadoop: "Caused by: java.lang.ClassNotFoundException" error

Nov 19, 2018 in Big Data Hadoop by digger
 • 26,740 points • 7,324 views
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Hadoop hdfs: How to count number of lines?

Nov 19, 2018 in Big Data Hadoop by digger
 • 26,740 points • 1,313 views
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1 answer

Hadoop: Adding multiple inputs with a different mapper using python

Nov 19, 2018 in Big Data Hadoop by digger
 • 26,740 points • 2,932 views
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Hadoop HDFS: Java API to move files to hdfs

Nov 19, 2018 in Big Data Hadoop by digger
 • 26,740 points • 4,291 views
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4 answers

Big Data Architect career as a fresher

Nov 19, 2018 in Career Counselling by Ram
 • 850 points • 1,869 views
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3 answers

Big Data Architect Certifications/ Courses

Nov 19, 2018 in Career Counselling by Ram
 • 850 points • 1,302 views
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What does a Big Data Architect do?

Nov 19, 2018 in Career Counselling by Ram
 • 850 points • 1,069 views
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What are skills required to become a Big Data Architect?

Nov 19, 2018 in Career Counselling by Ram
 • 850 points • 1,300 views
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2 answers

Big Data Solution Architect Salary

Nov 19, 2018 in Career Counselling by Ram
 • 850 points • 1,064 views
0 votes
2 answers

What are the skills required to become a Chief Data Officer?

Nov 16, 2018 in Career Counselling by Kapoor
 • 1,070 points • 2,264 views
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2 answers

Role of Chief Data Officer in Big Data

Nov 16, 2018 in Career Counselling by Kapoor
 • 1,070 points • 899 views
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3 answers

What is the average Salary of Chief Data Officer?

Nov 16, 2018 in Career Counselling by Kapoor
 • 1,070 points • 2,376 views
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1 answer

how do I run this R program on hadoop.

Nov 16, 2018 in Data Analytics by Ali
 • 11,360 points • 1,304 views
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1 answer

how is apache sqoop different from flume? Can someone explain?

Nov 15, 2018 in Big Data Hadoop by vishal
 • 430 points • 565 views
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4 answers

Data Science Certifications

Nov 15, 2018 in Career Counselling by Max
 • 180 points • 958 views
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2 answers

What is the average Salary for Data Scientist?

Nov 15, 2018 in Career Counselling by Max
 • 180 points • 1,149 views
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2 answers

Data Scientist Skills

Nov 15, 2018 in Career Counselling by Max
 • 180 points • 1,197 views
0 votes
5 answers

What are the roles and responsibilities of a Data Scientist?

Nov 15, 2018 in Career Counselling by Max
 • 180 points • 3,398 views
+2 votes
1 answer

Hadoop: Type mismatch in key from map: expected org.apache.hadoop.io.Text, recieved org.apache.hadoop.io.LongWritable

Nov 15, 2018 in Big Data Hadoop by digger
 • 26,740 points • 7,044 views
0 votes
1 answer

Hadoop Hive Hbase: How to insert data into Hbase using Hive (JSON file)?

Nov 15, 2018 in Big Data Hadoop by digger
 • 26,740 points • 3,086 views
0 votes
1 answer

Hadoop HDFS: How to delete old files from HDFS?

Nov 15, 2018 in Big Data Hadoop by digger
 • 26,740 points • 14,476 views
0 votes
1 answer

Hadoop Spark: __spark_lib.zip does not exist

Nov 15, 2018 in Big Data Hadoop by digger
 • 26,740 points • 3,003 views
0 votes
1 answer

Hadoop Hive: recursively descending into subdirectories without partitions or editing hive-site.xml

Nov 15, 2018 in Big Data Hadoop by digger
 • 26,740 points • 5,737 views
0 votes
3 answers

Data Warehousing Tools

Nov 14, 2018 in Career Counselling by Vidhyut
 • 1,170 points • 943 views
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2 answers

Data Warehouse Management Certification

Nov 14, 2018 in Career Counselling by Vidhyut
 • 1,170 points • 1,076 views
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2 answers

Data Warehouse Manager Salary

Nov 14, 2018 in Career Counselling by Vidhyut
 • 1,170 points • 793 views
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2 answers

Skills required to become Data Warehouse Manager

Nov 14, 2018 in Career Counselling by Vidhyut
 • 1,170 points • 1,347 views
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2 answers

Responsibilities of Data Warehouse Manager

Nov 14, 2018 in Career Counselling by Vidhyut
 • 1,170 points • 4,206 views
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1 answer

Hadoop Hive: How to drop a table?

Nov 14, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 2,116 views
0 votes
1 answer

Hadoop Hive: How to split a single row into multiple rows?

Nov 14, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 9,815 views
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1 answer

Hadoop Hive: How to convert multiple rows into comma separated values?

Nov 14, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 5,684 views
0 votes
1 answer

Hadoop: RHadoop: packages ‘rmr’, ‘rJava‘, ‘RJSONIO‘, ‘rhdfs’, ‘rhbase’, ‘plyrmr’ are not available

Nov 14, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 1,314 views
0 votes
2 answers

Certifications for Data Analyst job

Nov 13, 2018 in Career Counselling by Haman
 • 650 points • 1,302 views
+1 vote
3 answers

Data Analyst job for fresher

Nov 13, 2018 in Career Counselling by Haman
 • 650 points • 1,626 views
0 votes
2 answers

Data Analyst Salary

Nov 13, 2018 in Career Counselling by Haman
 • 650 points • 1,037 views
0 votes
3 answers

What are the skills required to become Data Analyst?

Nov 13, 2018 in Career Counselling by Haman
 • 650 points • 1,645 views
0 votes
3 answers

What are the responsibilities of Data Analyst?

Nov 13, 2018 in Career Counselling by Haman
 • 650 points • 2,094 views
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