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 • 1,590 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 • 1,285 views
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Drop a table in Hive.

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 750 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 • 1,902 views
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How to rename the Hive table?

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 12,721 views
0 votes
1 answer

Ranger kms is not coming up

Oct 18, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 1,169 views
0 votes
1 answer

How to write a HDF file from a DataFrame?

Oct 18, 2020 in Python by akhtar
 • 38,260 points • 1,295 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 • 852 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 • 754 views
0 votes
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How to find the status of MapReduce Job?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 817 views
0 votes
1 answer

Create hive table with location.

Oct 16, 2020 in Big Data Hadoop by MD
 • 95,460 points • 611 views
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1 answer

How to create hive table without location?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,138 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 • 2,200 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 • 3,090 views
0 votes
1 answer

IOException: All datanodes are bad.

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,214 views
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ERROR: Cannot set priority of datanode process

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 11,707 views
0 votes
1 answer

Checksum verification in Hadoop.

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,610 views
0 votes
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How to start Hadoop daemons?

Oct 15, 2020 in Big Data Hadoop by MD
 • 95,460 points • 936 views
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Enable HA for ranger KMS.

Oct 15, 2020 in Big Data Hadoop by anonymous
 • 450 points • 728 views
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HA ranger KMS ,

Oct 15, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 800 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 • 1,860 views
0 votes
1 answer

How to load dataset in Pig?

Oct 14, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,045 views
0 votes
1 answer

Execute the Pig script in Local mode.

Oct 14, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 522 views
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1 answer

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

Oct 14, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,310 views
0 votes
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How to create an empty file in Hadoop?

Oct 13, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 13,520 views
0 votes
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How to remove the directory from HDFS?

Oct 13, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 4,488 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 • 2,602 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 • 2,264 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 • 2,430 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 • 913 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 • 1,597 views
0 votes
1 answer

Ranger kms create key failed

Oct 5, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 1,720 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 • 8,224 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 • 824 views
0 votes
1 answer

Where does Hive store files in HDFS?

Oct 5, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,013 views
+1 vote
1 answer

How to check a HDFS directory size?

Oct 5, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 853 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 • 1,792 views
0 votes
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How to change default block size in Hadoop Cluster?

Oct 3, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,475 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 • 8,260 views
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Change permissions of a file in HDFS.

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,385 views
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1 answer

How to create a group in Hadoop?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,130 views
0 votes
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How to append files from local system to HDFS?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 8,158 views
0 votes
1 answer

How to set replication factor in Hadoop?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 7,898 views
0 votes
1 answer

How to merge files in Hadoop?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,078 views
0 votes
1 answer

How to remove files from HDFS system?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 25,453 views
0 votes
1 answer

Copy files in different folders in Hadoop.

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 33,238 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 • 4,321 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 • 1,891 views
0 votes
1 answer

Ranger KMS - Curl command

Sep 28, 2020 in Apache Spark by Shilpa S
 • 450 points • 1,323 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 • 862 views
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