Recent questions tagged big-data

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What is SerDe in Hadoop Hive?

Nov 21, 2018 in Big Data Hadoop by Haman
 • 650 points • 5,993 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 • 2,351 views
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Hadoop: What does RDD mean?

Nov 21, 2018 in Big Data Hadoop by Haman
 • 650 points • 1,278 views
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What is the difference between Apache ZooKeeper and Apache Oozie?

Nov 21, 2018 in Big Data Hadoop by Haman
 • 650 points • 4,860 views
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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 • 5,138 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 • 1,083 views
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1 answer

Hadoop Java: org.apache.hadoop.conf.Configuration does not exist error

Nov 21, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 8,006 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 • 1,146 views
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1 answer

Hadoop HDFS: Exception in createBlockOutputStream

Nov 21, 2018 in Big Data Hadoop by digger
 • 26,740 points • 5,296 views
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1 answer

How to open/stream .zip files through Spark?

Nov 20, 2018 in Apache Spark by Neha
 • 6,300 points • 2,755 views
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1 answer

Hadoop: "Caused by: java.lang.ClassNotFoundException" error

Nov 19, 2018 in Big Data Hadoop by digger
 • 26,740 points • 7,383 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 • 1,361 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 • 2,990 views
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1 answer

Hadoop HDFS: Java API to move files to hdfs

Nov 19, 2018 in Big Data Hadoop by digger
 • 26,740 points • 4,331 views
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4 answers

Big Data Architect career as a fresher

Nov 19, 2018 in Career Counselling by Ram
 • 850 points • 1,924 views
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3 answers

Big Data Architect Certifications/ Courses

Nov 19, 2018 in Career Counselling by Ram
 • 850 points • 1,344 views
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What does a Big Data Architect do?

Nov 19, 2018 in Career Counselling by Ram
 • 850 points • 1,107 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 • 1,348 views
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2 answers

Big Data Solution Architect Salary

Nov 19, 2018 in Career Counselling by Ram
 • 850 points • 1,100 views
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2 answers

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

Nov 16, 2018 in Career Counselling by Kapoor
 • 1,070 points • 2,303 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 • 927 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 • 2,435 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 • 1,338 views
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how is apache sqoop different from flume? Can someone explain?

Nov 15, 2018 in Big Data Hadoop by vishal
 • 430 points • 590 views
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4 answers

Data Science Certifications

Nov 15, 2018 in Career Counselling by Max
 • 180 points • 1,008 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 • 1,191 views
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2 answers

Data Scientist Skills

Nov 15, 2018 in Career Counselling by Max
 • 180 points • 1,234 views
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5 answers

What are the roles and responsibilities of a Data Scientist?

Nov 15, 2018 in Career Counselling by Max
 • 180 points • 3,481 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 • 7,126 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 • 3,124 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 • 14,542 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 • 3,050 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 • 5,780 views
0 votes
3 answers

Data Warehousing Tools

Nov 14, 2018 in Career Counselling by Vidhyut
 • 1,170 points • 970 views
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2 answers

Data Warehouse Management Certification

Nov 14, 2018 in Career Counselling by Vidhyut
 • 1,170 points • 1,111 views
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2 answers

Data Warehouse Manager Salary

Nov 14, 2018 in Career Counselling by Vidhyut
 • 1,170 points • 831 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 • 1,378 views
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2 answers

Responsibilities of Data Warehouse Manager

Nov 14, 2018 in Career Counselling by Vidhyut
 • 1,170 points • 4,286 views
0 votes
1 answer

Hadoop Hive: How to drop a table?

Nov 14, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 2,154 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 • 9,905 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 • 5,743 views
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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 • 1,363 views
0 votes
2 answers

Certifications for Data Analyst job

Nov 13, 2018 in Career Counselling by Haman
 • 650 points • 1,348 views
+1 vote
3 answers

Data Analyst job for fresher

Nov 13, 2018 in Career Counselling by Haman
 • 650 points • 1,674 views
0 votes
2 answers

Data Analyst Salary

Nov 13, 2018 in Career Counselling by Haman
 • 650 points • 1,082 views
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3 answers

What are the skills required to become Data Analyst?

Nov 13, 2018 in Career Counselling by Haman
 • 650 points • 1,691 views
0 votes
3 answers

What are the responsibilities of Data Analyst?

Nov 13, 2018 in Career Counselling by Haman
 • 650 points • 2,152 views
0 votes
1 answer

Where can I find AMI for Hadoop on EC2?

Nov 12, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,217 views
0 votes
1 answer

How can I access S3/S3n from a local Hadoop 2.6 installation?

Oct 3, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 5,611 views
0 votes
1 answer

Integration of Hadoop with Mongo DB concept

Sep 25, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,002 views
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