Recent questions tagged hadoop-admin

+1 vote
1 answer

ssh: connect to host localhost port 22: Connection refused in Hadoop.

Dec 18, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 10,560 views
+1 vote
2 answers

How to delete and update a record in Hive?

Dec 8, 2020 in Big Data Hadoop by Rajiv
 • 8,870 points • 6,936 views
0 votes
1 answer

Validating HA for ranger KMS

Nov 7, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 1,210 views
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1 answer

How to display the Access Control Lists (ACLs) of files and directories in HDFS?

Oct 20, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,927 views
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1 answer

Copy a directory from one node in the cluster to another in HDFS.

Oct 20, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,613 views
0 votes
1 answer

How to write Reducer code for Hadoop?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,004 views
0 votes
1 answer

How to write mapper code for Hadoop in Python?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 864 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 • 984 views
0 votes
1 answer

Create hive table with location.

Oct 16, 2020 in Big Data Hadoop by MD
 • 95,460 points • 735 views
0 votes
1 answer

How to create hive table without location?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,386 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 • 2,433 views
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1 answer

How to update the existing record in HDFS?

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,395 views
0 votes
1 answer

IOException: All datanodes are bad.

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,358 views
0 votes
1 answer

ERROR: Cannot set priority of datanode process

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 12,742 views
0 votes
1 answer

Checksum verification in Hadoop.

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,729 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 • 2,089 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 • 3,640 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 • 14,184 views
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1 answer

How to remove the directory from HDFS?

Oct 13, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 4,846 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 • 2,490 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 • 2,799 views
0 votes
1 answer

Ranger kms create key failed

Oct 5, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 2,030 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 • 8,593 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 • 1,075 views
+1 vote
1 answer

How to check a HDFS directory size?

Oct 5, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,134 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 • 2,782 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 • 8,648 views
0 votes
1 answer

How to create a group in Hadoop?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,287 views
0 votes
1 answer

How to set replication factor in Hadoop?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 8,198 views
0 votes
1 answer

How to merge files in Hadoop?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,252 views
0 votes
1 answer

How to remove files from HDFS system?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 26,841 views
0 votes
1 answer

Copy files in different folders in Hadoop.

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 34,002 views
0 votes
1 answer

Adding Ranger KMS server using ambari

Sep 28, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 783 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 • 1,148 views
0 votes
1 answer

touchz: java.io.IOException: java.lang.IllegalArgumentException: Unexpected value for the block size

Sep 25, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,020 views
0 votes
1 answer

How to change block size in Hadoop dynamically?

Sep 25, 2020 in Big Data Hadoop by MD
 • 95,460 points • 3,263 views
0 votes
1 answer

How to configure Hadoop Client?

Sep 25, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,875 views
0 votes
1 answer

How to upload files in Hadoop Cluster?

Sep 25, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,273 views
0 votes
1 answer

Usage: java FsShell [-put <localsrc> ... <dst>]

Sep 25, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 950 views
0 votes
1 answer

How to connect Hadoop WebUI?

Sep 25, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 970 views
0 votes
1 answer

How to see the report of Hadoop Cluster from command line?

Sep 25, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,501 views
0 votes
1 answer

How to format a Hadoop Master Node?

Sep 21, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 791 views
0 votes
1 answer

How to start Hadoop namenode service?

Sep 21, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,167 views
0 votes
1 answer

How to configure Hadoop namenode?

Sep 21, 2020 in Big Data Hadoop by MD
 • 95,460 points • 1,134 views
0 votes
1 answer

file /usr/bin from install of hadoop-1.2.1-1.x86_64 conflicts with file from package filesystem-3.8-2.el8.x86_64

Sep 21, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,542 views
0 votes
1 answer

What skills are required to be a Hadoop developer?

May 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 848 views
0 votes
1 answer

Which is the best online Big Data Hadoop course?

May 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,045 views
0 votes
1 answer

Where can I get best spark tutorials for beginners?

May 14, 2020 in Apache Spark by akhtar
 • 38,260 points • 852 views
0 votes
1 answer

ERROR 2999: Unexpected internal error. Failed to create DataStorage.

Apr 17, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,722 views
0 votes
2 answers

How to set properties for secondary namenode in Hadoop?

Mar 31, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 4,610 views
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