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How do you gracefully stop a running job?
asked
Feb 23, 2020
in
Big Data | Hadoop
#job-start
Bigdata-questions-answers
Hadoop-questions-answers
+1
vote
1
answer
The requirement is to add a new data node to a running Hadoop cluster; how do I start services on just one data node?
asked
Feb 23, 2020
in
Big Data | Hadoop
#hdfs-start
Bigdata-questions-answers
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0
votes
1
answer
Is there a hdfs command to see available free space in hdfs
asked
Feb 23, 2020
in
Big Data | Hadoop
#hdfs-command
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
Which file does the Hadoop-core configuration?
asked
Feb 23, 2020
in
Big Data | Hadoop
#hadoop-core-configuration
Bigdata-questions-answers
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0
votes
1
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What is rack awareness in HDFS
asked
Feb 23, 2020
in
Big Data | Hadoop
#rack-awareness
Bigdata-questions-answers
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0
votes
1
answer
Default replication factor to a file is 3.
asked
Feb 23, 2020
in
Big Data | Hadoop
#replication-factor
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
Copy a directory from one node in the cluster to another
asked
Feb 23, 2020
in
Big Data | Hadoop
#hdfs-cluster-node
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
Why ‘Reading‘ is done in parallel and ‘Writing‘ is not in HDFS?
asked
Feb 23, 2020
in
Big Data | Hadoop
#hdfs-reading
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
Explain how do ‘map’ and ‘reduce’ works.
asked
Feb 23, 2020
in
Big Data | Hadoop
#map-reduce
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
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What is a Secondary Namenode? Is it a substitute to the Namenode?
asked
Feb 23, 2020
in
Big Data | Hadoop
#secondary-namenode
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What is a rack in HDFS
asked
Feb 23, 2020
in
Big Data | Hadoop
#hdfs-rack
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
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What is the communication channel between client and namenode/datanode?
asked
Feb 23, 2020
in
Big Data | Hadoop
#namenode-communication-channel
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
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Are job tracker and task trackers present in separate machines?
asked
Feb 23, 2020
in
Big Data | Hadoop
#job-tracker
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
How indexing is done in HDFS?
asked
Feb 23, 2020
in
Big Data | Hadoop
#hdfs-indexing
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What are the benefits of block transfer?
asked
Feb 23, 2020
in
Big Data | Hadoop
#block-transfer
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What is a ‘block’ in HDFS?
asked
Feb 23, 2020
in
Big Data | Hadoop
#hdfs-block
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What is a heartbeat in HDFS?
asked
Feb 23, 2020
in
Big Data | Hadoop
#hdfs-heartbeat
Bigdata-questions-answers
Hadoop-questions-answers
+1
vote
1
answer
What is a task tracker?
asked
Feb 23, 2020
in
Big Data | Hadoop
#task-tracker
Bigdata-questions-answers
Hadoop-questions-answers
+1
vote
1
answer
What is a job tracker?
asked
Feb 23, 2020
in
Big Data | Hadoop
#job-tracker
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
Why do we use HDFS for applications having large data sets and not when there are lot of small files?
asked
Feb 23, 2020
in
Big Data | Hadoop
#hdfs-use
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What is a Datanode?
asked
Feb 23, 2020
in
Big Data | Hadoop
#datanode
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
Is Namenode also a commodity hardware?
asked
Feb 23, 2020
in
Big Data | Hadoop
#namenode-commodity
Bigdata-questions-answers
Hadoop-questions-answers
+1
vote
1
answer
What is a Namenode?
asked
Feb 23, 2020
in
Big Data | Hadoop
#namenode
Bigdata-questions-answers
Hadoop-questions-answers
+1
vote
1
answer
Replication causes data redundancy, then why is it pursued in HDFS?
asked
Feb 23, 2020
in
Big Data | Hadoop
#hdfs-replication
Bigdata-questions-answers
Hadoop-questions-answers
+1
vote
1
answer
What is Fault Tolerance?
asked
Feb 23, 2020
in
Big Data | Hadoop
#fault-tolerance
Bigdata-questions-answers
Hadoop-questions-answers
+1
vote
2
answers
What is the basic difference between traditional RDBMS and Hadoop?
asked
Feb 23, 2020
in
Big Data | Hadoop
#rdbms-vs-hadoop
Bigdata-questions-answers
Hadoop-questions-answers
+1
vote
1
answer
Why do we need Hadoop?
asked
Feb 23, 2020
in
Big Data | Hadoop
#hadoop-need
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
How is analysis of Big Data useful for organizations?
asked
Feb 23, 2020
in
Big Data | Hadoop
#big-data-use
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What are the four characteristics of Big Data?
asked
Feb 23, 2020
in
Big Data | Hadoop
#big-data-characterstics
Bigdata-questions-answers
Hadoop-questions-answers
0
votes
1
answer
What is Big Data?
asked
Feb 23, 2020
in
Big Data | Hadoop
#what-is-big-data
#big-data
Bigdata-questions-answers
Hadoop-questions-answers
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