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 • 10,880 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 • 7,253 views
0 votes
1 answer

Validating HA for ranger KMS

Nov 7, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 1,422 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 • 2,168 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 • 3,824 views
0 votes
1 answer

How to write Reducer code for Hadoop?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,201 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 • 1,048 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 • 1,175 views
0 votes
1 answer

Create hive table with location.

Oct 16, 2020 in Big Data Hadoop by MD
 • 95,460 points • 911 views
0 votes
1 answer

How to create hive table without location?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,562 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 • 2,710 views
0 votes
1 answer

How to update the existing record in HDFS?

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,669 views
0 votes
1 answer

IOException: All datanodes are bad.

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,532 views
0 votes
1 answer

ERROR: Cannot set priority of datanode process

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 13,382 views
0 votes
1 answer

Checksum verification in Hadoop.

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,908 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 • 2,284 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 • 3,923 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 • 14,641 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 • 5,185 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 • 2,754 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 • 3,093 views
0 votes
1 answer

Ranger kms create key failed

Oct 5, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 2,297 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 • 8,900 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 • 1,278 views
+1 vote
1 answer

How to check a HDFS directory size?

Oct 5, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,349 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 • 3,002 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 • 9,008 views
0 votes
1 answer

How to create a group in Hadoop?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,497 views
0 votes
1 answer

How to set replication factor in Hadoop?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 8,486 views
0 votes
1 answer

How to merge files in Hadoop?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,479 views
0 votes
1 answer

How to remove files from HDFS system?

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 27,728 views
0 votes
1 answer

Copy files in different folders in Hadoop.

Oct 1, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 34,537 views
0 votes
1 answer

Adding Ranger KMS server using ambari

Sep 28, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 970 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 • 1,329 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 • 1,188 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 • 3,474 views
0 votes
1 answer

How to configure Hadoop Client?

Sep 25, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,064 views
0 votes
1 answer

How to upload files in Hadoop Cluster?

Sep 25, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,484 views
0 votes
1 answer

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

Sep 25, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,110 views
0 votes
1 answer

How to connect Hadoop WebUI?

Sep 25, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,190 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 • 3,780 views
0 votes
1 answer

How to format a Hadoop Master Node?

Sep 21, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 965 views
0 votes
1 answer

How to start Hadoop namenode service?

Sep 21, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,425 views
0 votes
1 answer

How to configure Hadoop namenode?

Sep 21, 2020 in Big Data Hadoop by MD
 • 95,460 points • 1,324 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 • 1,731 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 • 1,042 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 • 1,255 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 • 1,046 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 • 1,902 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 • 5,100 views
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