Recent questions tagged hadoop

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1 answer

Drop an index from a Hive table.

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,574 views
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How to create an index on Hive table?

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,189 views
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Drop a table in Hive.

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,716 views
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How to add a column in Hive table?

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,164 views
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How to rename the Hive table?

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 15,368 views
0 votes
1 answer

Ranger kms is not coming up

Oct 18, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 2,095 views
0 votes
1 answer

How to write a HDF file from a DataFrame?

Oct 18, 2020 in Python by akhtar
 • 38,260 points • 2,190 views
0 votes
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How to write Reducer code for Hadoop?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,728 views
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How to write mapper code for Hadoop in Python?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,613 views
0 votes
1 answer

How to find the status of MapReduce Job?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,679 views
0 votes
1 answer

Create hive table with location.

Oct 16, 2020 in Big Data Hadoop by MD
 • 95,460 points • 1,370 views
0 votes
1 answer

How to create hive table without location?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,109 views
0 votes
1 answer

Error: Could not create the Java Virtual Machine in Hadoop.

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,276 views
0 votes
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How to update the existing record in HDFS?

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 4,362 views
0 votes
1 answer

IOException: All datanodes are bad.

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,029 views
0 votes
1 answer

ERROR: Cannot set priority of datanode process

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 14,932 views
0 votes
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Checksum verification in Hadoop.

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,537 views
0 votes
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How to start Hadoop daemons?

Oct 15, 2020 in Big Data Hadoop by MD
 • 95,460 points • 1,917 views
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Enable HA for ranger KMS.

Oct 15, 2020 in Big Data Hadoop by anonymous
 • 450 points • 1,660 views
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HA ranger KMS ,

Oct 15, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 1,711 views
0 votes
1 answer

How to store datasets from Pig to HDFS?

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,863 views
0 votes
1 answer

How to load dataset in Pig?

Oct 14, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,993 views
0 votes
1 answer

Execute the Pig script in Local mode.

Oct 14, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,487 views
0 votes
1 answer

mkdir: cannot create directory `/var/run/hadoop': Permission denied.

Oct 14, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 4,663 views
0 votes
1 answer

How to create an empty file in Hadoop?

Oct 13, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 16,336 views
0 votes
1 answer

How to remove the directory from HDFS?

Oct 13, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 6,120 views
0 votes
1 answer

org.apache.hadoop.mapreduce.lib.input.InvalidInputException: Input path does not exist: hdfs://localhost:54310/user/hduser/input.

Oct 13, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,646 views
0 votes
1 answer

How to find the number of blocks for a file in Hadoop?

Oct 13, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,512 views
0 votes
1 answer

How to check the name of the hadoop server?

Oct 13, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,732 views
0 votes
1 answer

I was installing Hadoop for windows everything went smoothly but when I tried to format NameNode it displayed an error of failing to start NameNode. What should I do?

Oct 10, 2020 in Big Data Hadoop by alex
 • 120 points • 2,064 views
0 votes
1 answer

HI i was trying to install hadoop but i get these error....Format HDFS Namenode Error: Could not find or load main class ”-Djava.library.path=.home.hadoop.hadoop-3.2.1.lib"

Oct 7, 2020 in Big Data Hadoop by bezz
 • 120 points • 3,074 views
0 votes
1 answer

Ranger kms create key failed

Oct 5, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 3,035 views
0 votes
1 answer

How to view contents of file in hadoop hdfs?

Oct 5, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 9,616 views
0 votes
1 answer

How to find HDFS free space from command line?

Oct 5, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,881 views
0 votes
1 answer

Where does Hive store files in HDFS?

Oct 5, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,012 views
+1 vote
1 answer

How to check a HDFS directory size?

Oct 5, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,967 views
0 votes
1 answer

How to change the default replication factor in Hadoop?

Oct 3, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,106 views
0 votes
1 answer

How to change default block size in Hadoop Cluster?

Oct 3, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,618 views
0 votes
1 answer

Change the owner and group of a file in Hadoop.

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 10,004 views
0 votes
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Change permissions of a file in HDFS.

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,470 views
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How to create a group in Hadoop?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,121 views
0 votes
1 answer

How to append files from local system to HDFS?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 9,845 views
0 votes
1 answer

How to set replication factor in Hadoop?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 9,280 views
0 votes
1 answer

How to merge files in Hadoop?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,158 views
0 votes
1 answer

How to remove files from HDFS system?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 30,420 views
0 votes
1 answer

Copy files in different folders in Hadoop.

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 36,495 views
0 votes
1 answer

How to copy files from HDFS to local system?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 5,536 views
0 votes
1 answer

Setting up Hadoop Multi-node cluster on windows 10 systems

Oct 1, 2020 in Big Data Hadoop by Hassan
 • 120 points • 2,759 views
0 votes
1 answer

Ranger KMS - Curl command

Sep 28, 2020 in Apache Spark by Shilpa S
 • 450 points • 2,311 views
0 votes
1 answer

touchz: io.bytes.per.checksum(512) and blockSize(256) do not match. blockSize should be a multiple of io.bytes.per.checksum

Sep 25, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,967 views
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