Questions by coldcode

0 votes
2 answers

What skills do I need to become a Blockchain Quality Engineer?

Nov 9, 2018 in Career Counselling • 2,176 views
0 votes
3 answers

What is the job of a Blockchain Quality Engineer?

Nov 9, 2018 in Career Counselling • 1,291 views
0 votes
3 answers

What does a Hadoop Admin do?

Nov 8, 2018 in Career Counselling • 550 views
0 votes
1 answer

What does a Hadoop tester do?

Nov 6, 2018 in Big Data Hadoop • 393 views
0 votes
1 answer

Is Linux Skills mandatory to become Hadoop developer?

Nov 6, 2018 in Big Data Hadoop • 881 views
+1 vote
3 answers

How to start career in BiG Data as fresher?

Nov 6, 2018 in Career Counselling • 1,838 views
0 votes
14 answers

How can I delete all the messages from a Kafka topic?

Jul 10, 2018 in Apache Kafka • 226,976 views
0 votes
1 answer

How to commit message offsets in Kafka for reliable data pipeline?

Jul 10, 2018 in Apache Kafka • 3,365 views
0 votes
1 answer

How to reset the offset of messages consumed from Kafka?

Jul 10, 2018 in Apache Kafka • 13,743 views
0 votes
1 answer

Not able to fetch messages from Kafka cluster

Jul 10, 2018 in Apache Kafka • 2,842 views
+2 votes
10 answers

Writing the Kafka consumer output to a file

Jul 10, 2018 in Apache Kafka • 37,195 views
0 votes
1 answer

Re-balancing error while reading messages from Kafka.

Jul 10, 2018 in Apache Kafka • 2,686 views
0 votes
1 answer

Is there any change in consumer offsets if a new partition(s) is added to a Kafka topic?

Jul 9, 2018 in Apache Kafka • 2,122 views
+2 votes
14 answers

How to create new column with function in Spark Dataframe?

Jun 26, 2018 in Apache Spark • 87,704 views
0 votes
1 answer

How does partitioning work in Spark?

May 31, 2018 in Apache Spark • 978 views
0 votes
1 answer

out of Memory Error in Hadoop

May 22, 2018 in Big Data Hadoop • 1,653 views
0 votes
1 answer

Is there any way to access Hadoop web UI in linux?

May 9, 2018 in Big Data Hadoop • 3,657 views
0 votes
1 answer

How to find the used cache in HDFS

May 4, 2018 in Big Data Hadoop • 2,097 views
0 votes
1 answer

Could not find the Sqoop directory in HDP 2.2

May 4, 2018 in Big Data Hadoop • 1,322 views
0 votes
1 answer

NodeManager is not able to connect to the ResourceManager.

May 1, 2018 in Big Data Hadoop • 3,497 views
0 votes
1 answer

What is the function of getLocalCacheArchives method?

Apr 29, 2018 in Big Data Hadoop • 570 views
0 votes
1 answer

What is the command to find the free space in HDFS?

Apr 29, 2018 in Big Data Hadoop • 1,886 views
0 votes
1 answer

What is the command to navigate in HDFS?

Apr 27, 2018 in Big Data Hadoop • 5,264 views
0 votes
1 answer

How can I write text in HDFS using CMD?

Apr 27, 2018 in Big Data Hadoop • 1,821 views
0 votes
1 answer

Changing hostname in fs.default.name property puts Hadoop in safemode

Apr 27, 2018 in Big Data Hadoop • 2,031 views
+1 vote
2 answers

What does hadoop fs -du command gives as output?

Apr 27, 2018 in Big Data Hadoop • 5,541 views
0 votes
1 answer

DataDriven testing in selenium webdriver

Apr 23, 2018 in Selenium • 427 views
0 votes
1 answer

Login page test script using selenium and java in Eclipse IDE

Apr 23, 2018 in Selenium • 13,337 views
0 votes
2 answers

hadoop copy a local file system folder to HDFS

Apr 19, 2018 in Big Data Hadoop • 24,611 views
0 votes
1 answer

Getting error in Custom Input Format

Apr 19, 2018 in Big Data Hadoop • 479 views
0 votes
1 answer

Error in Hadoop Mapreduce

Apr 19, 2018 in Big Data Hadoop • 898 views
0 votes
1 answer

Not able to find HDFS directory on my system?

Apr 17, 2018 in Big Data Hadoop • 7,170 views
0 votes
1 answer

What does NameNode stores and where it stores?

Apr 15, 2018 in Big Data Hadoop • 5,381 views
0 votes
2 answers

Function of “hadoop namenode -format” command

Apr 15, 2018 in Big Data Hadoop • 20,650 views
0 votes
1 answer

Moving files in Hadoop using the Java API?

Apr 15, 2018 in Big Data Hadoop • 2,507 views
0 votes
1 answer

Deleting a directory with comma throwing an error

Apr 15, 2018 in Big Data Hadoop • 413 views
0 votes
11 answers

What is the command to start Job history server in Hadoop 2.x & how to get its UI?

Apr 15, 2018 in Big Data Hadoop • 19,881 views
0 votes
2 answers

Hadoop query regarding setJarByClass method of Job class

Apr 15, 2018 in Big Data Hadoop • 2,067 views
0 votes
1 answer

Best way of starting & stopping the Hadoop daemons with command line

Apr 15, 2018 in Big Data Hadoop • 9,601 views
0 votes
1 answer

Files for Configuring HDFS in Hadoop 2.2.0?

Apr 15, 2018 in Big Data Hadoop • 509 views
0 votes
1 answer

Getting error in MapReduce job.setInputFormatClass

Apr 15, 2018 in Big Data Hadoop • 1,877 views
0 votes
2 answers

start-dfs.sh command is not starting Hadoop JobTracker & TaskTracker

Apr 15, 2018 in Big Data Hadoop • 3,438 views
0 votes
1 answer

Getting error in command hdfs dfs -mkdir

Apr 15, 2018 in Big Data Hadoop • 2,878 views
0 votes
1 answer

I am getting error while starting the Hadoop Daemons i.e. ResourceManger & NodeManager in Hadoop 3

Apr 15, 2018 in Big Data Hadoop • 3,352 views
0 votes
1 answer

Why ResourceManager crashes after sometime or while accessing HDFS in Hadoop 2.8.1 and Ubuntu 16.04?

Apr 15, 2018 in Big Data Hadoop • 1,176 views
0 votes
1 answer

Is there any way to load data from MySql to HDFS?

Apr 10, 2018 in Big Data Hadoop • 3,354 views
0 votes
1 answer

How to use custom FileInputFormat in MapReduce?

Apr 10, 2018 in Big Data Hadoop • 898 views
0 votes
1 answer

How do I include all the Hadoop dependencies using Maven?

Apr 10, 2018 in Big Data Hadoop • 6,056 views
0 votes
1 answer

Different ports in a Hadoop cluster environment?

Apr 6, 2018 in Big Data Hadoop • 1,565 views
0 votes
1 answer

Not able to start Job History Server in Hadoop 2.8.1

Mar 30, 2018 in Big Data Hadoop • 2,346 views
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