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Recent questions in HDFS
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What does “Velocity” in Big Data mean?
asked
Jun 26, 2021
in
HDFS
by
SakshiSharma
big-data
velocity
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1
answer
Which of the following are NOT big data problem(s)?
asked
Jun 26, 2021
in
HDFS
by
SakshiSharma
big-data
+1
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1
answer
What does commodity Hardware in Hadoop world mean?
asked
Jun 26, 2021
in
HDFS
by
SakshiSharma
hadoop-world
0
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1
answer
Why does Hive not store metadata information in HDFS?
asked
Dec 3, 2020
in
HDFS
by
sharadyadav1986
#hive-data-store
#hdfs-information
#hdfs-metadata
0
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1
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What are the major configuration parameters required in a MapReduce program?
asked
Nov 24, 2020
in
HDFS
by
rahuljain1
#map-reduce-program
#map-reduce-configuration
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1
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Name some Hadoop-specific data types that are used in a MapReduce program.
asked
Nov 24, 2020
in
HDFS
by
rahuljain1
#hadoop-data-types
mapreduce-program
0
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1
answer
Is it possible to change the number of mappers to be created in a MapReduce job?
asked
Nov 24, 2020
in
HDFS
by
rahuljain1
#hdfs-jobs
#map-reduce-jobs
0
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1
answer
Why is MapReduce slower in processing data in comparison to other processing frameworks?
asked
Nov 24, 2020
in
HDFS
by
rahuljain1
#mapreduce-processing
#mapreduce-framework
0
votes
1
answer
What role do RecordReader, Combiner, and Partitioner play in a MapReduce operation?
asked
Nov 24, 2020
in
HDFS
by
rahuljain1
#recordreader
#combiner
partitioner
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1
answer
What is the distributed cache in MapReduce?
asked
Nov 24, 2020
in
HDFS
by
rahuljain1
#distributed-cache
#mapreduce-cache
0
votes
1
answer
Who takes care of replication consistency in a Hadoop cluster and what do under/over replicated blocks mean?
asked
Nov 24, 2020
in
HDFS
by
rahuljain1
#hdfs-replication-consistency
#hadoop-cluster
0
votes
1
answer
Is there any way to change the replication of files on HDFS after they are already written to HDFS?
asked
Nov 24, 2020
in
HDFS
by
rahuljain1
#hdfs-replication
0
votes
1
answer
What is Rack Awareness?
asked
Nov 8, 2020
in
HDFS
by
rahuljain1
#rack-awareness
0
votes
1
answer
What is Fault Tolerance in HDFS?
asked
Nov 7, 2020
in
HDFS
by
SakshiSharma
#fault-tolerance-hdfs
0
votes
1
answer
What is the default replication factor and how will you change it?
asked
Nov 7, 2020
in
HDFS
by
SakshiSharma
#hdfs-replication-factor
0
votes
1
answer
Explain Heartbeat in HDFS?
asked
Nov 7, 2020
in
HDFS
by
SakshiSharma
#hearteat-hdfs
0
votes
2
answers
How is indexing done in HDFS?
asked
Nov 7, 2020
in
HDFS
by
SakshiSharma
#hdfs-indexing
0
votes
1
answer
How data or file is read in HDFS?
asked
Nov 7, 2020
in
HDFS
by
SakshiSharma
#data-file
0
votes
0
answers
Flume Architecture
asked
Jun 20, 2020
in
HDFS
by
Robindeniel
#flume-architecture
0
votes
1
answer
How will you perform the inter cluster data copying work in HDFS?
asked
Jun 8, 2020
in
HDFS
by
Robindeniel
#hdfs-cluster-data
#cluster-data-hdfs
0
votes
1
answer
Define Hadoop Archives? What is the command for archiving a group of files in HDFS.
asked
Jun 8, 2020
in
HDFS
by
Robindeniel
#hdfs-hadoop-archives
#hadoop-archives
0
votes
1
answer
What do you mean by the High Availability of a NameNode? How is it achieved?
asked
Jun 8, 2020
in
HDFS
by
Robindeniel
#hdfs-namenode
#namenode-hdfs
0
votes
1
answer
Define Data Integrity? How does HDFS ensure data integrity of data blocks stored in HDFS?
asked
Jun 8, 2020
in
HDFS
by
Robindeniel
#hdfs-data-integrity
#integrity-hdfs
0
votes
1
answer
Does HDFS allow a client to read a file which is already opened for writing?
asked
Jun 8, 2020
in
HDFS
by
Robindeniel
#hdfs-read-file
#read-file-hdfs
0
votes
1
answer
Can multiple clients write into an HDFS file concurrently?
asked
Jun 8, 2020
in
HDFS
by
Robindeniel
#hdfs-multiple-files
#multiple-files-hdfs
0
votes
1
answer
Can you modify the file present in HDFS?
asked
Jun 8, 2020
in
HDFS
by
Robindeniel
#hdfs-file
#file-hdfs
0
votes
1
answer
How data or a file is written into HDFS?
asked
Jun 8, 2020
in
HDFS
by
Robindeniel
#hdfs-data-file
#data-file-hdfs
0
votes
1
answer
What is a rack awareness algorithm and why is it used in Hadoop?
asked
Jun 8, 2020
in
HDFS
by
Robindeniel
#hdfs-rack-awareness
#rack-awareness-hadoop
0
votes
1
answer
Can we have different replication factor of the existing files in HDFS?
asked
Jun 8, 2020
in
HDFS
by
Robindeniel
#hdfs-replication-factor
0
votes
1
answer
Replication causes data redundancy and consume a lot of space, then why is it pursued in HDFS?
asked
Jun 8, 2020
in
HDFS
by
Robindeniel
#hdfs-replication-cause
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