Recent questions tagged big-data

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How do I split a string on a delimiter in Bash?

Dec 7, 2020 in Big Data Hadoop by Roshni
 • 10,480 points • 1,184 views
+1 vote
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How does Hadoop process records split across block boundaries?

Dec 7, 2020 in Big Data Hadoop by Roshni
 • 10,480 points • 787 views
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Name node is in safe mode. Not able to leave

Dec 7, 2020 in Big Data Hadoop by Roshni
 • 10,480 points • 2,265 views
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How to list all Kafka topics?

Dec 7, 2020 in Apache Kafka by akhtar
 • 38,260 points • 12,074 views
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What is a broker in Kafka Cluster?

Dec 7, 2020 in Apache Kafka by akhtar
 • 38,260 points • 1,654 views
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What is a producer in Kafka Cluster?

Dec 7, 2020 in Apache Kafka by akhtar
 • 38,260 points • 787 views
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How to create a Kafka producer?

Dec 7, 2020 in Apache Kafka by MD
 • 95,460 points • 844 views
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How to create a Kafka topic in a broker?

Dec 7, 2020 in Apache Kafka by akhtar
 • 38,260 points • 1,653 views
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How to start Kafka server?

Dec 7, 2020 in Apache Kafka by akhtar
 • 38,260 points • 1,151 views
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How to start Zookeeper service?

Dec 7, 2020 in Apache Kafka by akhtar
 • 38,260 points • 2,611 views
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I am getting this log4j:ERROR setFile(null,true) call failed. java.io.FileNotFoundException: /ozone.log (Read-only file system)

Dec 4, 2020 in Big Data Hadoop by Raj
 • 120 points • 8,987 views
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1 answer

Spark Core How to fetch max n rows of an RDD function without using Rdd.max()

Dec 3, 2020 in Apache Spark by Prashant
 • 120 points • 2,268 views
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In AWS, if user wants to run spark, then on top of which one of the following can the user do it?

Nov 26, 2020 in Apache Spark by ritu
 • 960 points • 1,486 views
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If i enable zookeeper secrete manager getting java file not found

Nov 21, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 612 views
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2 answers

How do I output the results of a HiveQL query to CSV?

Nov 20, 2020 in Big Data Hadoop by anonymous
 • 8,870 points • 8,627 views
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How to know Hive and Hadoop versions from command prompt?

Nov 20, 2020 in Big Data Hadoop by Rajiv
 • 8,870 points • 11,835 views
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How to set variables in HIVE scripts

Nov 20, 2020 in Big Data Hadoop by anonymous
 • 10,480 points • 8,125 views
+1 vote
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When to use Hadoop, HBase, Hive and Pig?

Nov 20, 2020 in Big Data Hadoop by anonymous
 • 10,480 points • 1,008 views
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Difference between Pig and Hive? Why have both? [closed]

Nov 20, 2020 in Big Data Hadoop by Roshni
 • 10,480 points • 632 views
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1 answer

error: value update is not a member of scala.collection.immutable.Map[String, Int]

Nov 17, 2020 in Big Data Hadoop by anonymous
 • 8,870 points • 5,560 views
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How to start working with scala?

Nov 16, 2020 in Big Data Hadoop by anonymous
 • 10,480 points • 636 views
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1 answer

Moving historyserver to another instance using curl command

Nov 9, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 835 views
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1 answer

Zookeeper server going down frequently.

Nov 9, 2020 in Big Data Hadoop by B
 • 210 points • 2,267 views
0 votes
1 answer

HDP Upgrade Issue in 2.6.5.

Nov 7, 2020 in Big Data Hadoop by B
 • 210 points • 854 views
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1 answer

Validating HA for ranger KMS

Nov 7, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 1,077 views
0 votes
1 answer

Map reduce history moving instance using curl .

Nov 7, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 824 views
+1 vote
1 answer

Not able to create kms key using ambari.

Nov 4, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 994 views
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1 answer

How to read Avro Partition Data?

Nov 4, 2020 in Apache Spark by akhtar
 • 38,260 points • 1,934 views
+1 vote
1 answer

How to write Spark DataFrame to Avro Data File?

Nov 4, 2020 in Apache Spark by akhtar
 • 38,260 points • 3,386 views
0 votes
1 answer

How to read a dataframe based on an avro schema?

Oct 30, 2020 in Apache Spark by anonymous
 • 120 points • 3,361 views
0 votes
1 answer

Ranger Kms having multiple instance enabled.

Oct 23, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 1,401 views
0 votes
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 • 1,721 views
0 votes
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 • 3,425 views
+1 vote
1 answer

How to copy file from Local file system to HDFS?

Oct 20, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 3,109 views
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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 • 1,715 views
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1 answer

How to create an index on Hive table?

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,357 views
0 votes
1 answer

Drop a table in Hive.

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 844 views
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1 answer

How to add a column in Hive table?

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,038 views
0 votes
1 answer

How to rename the Hive table?

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 13,204 views
0 votes
1 answer

Ranger kms is not coming up

Oct 18, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 1,230 views
0 votes
1 answer

How to write a HDF file from a DataFrame?

Oct 18, 2020 in Python by akhtar
 • 38,260 points • 1,332 views
0 votes
1 answer

How to write Reducer code for Hadoop?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 937 views
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1 answer

How to write mapper code for Hadoop in Python?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 803 views
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1 answer

How to find the status of MapReduce Job?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 903 views
0 votes
1 answer

Create hive table with location.

Oct 16, 2020 in Big Data Hadoop by MD
 • 95,460 points • 660 views
0 votes
1 answer

How to create hive table without location?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,239 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 • 2,268 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 • 3,212 views
0 votes
1 answer

IOException: All datanodes are bad.

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,275 views
0 votes
1 answer

ERROR: Cannot set priority of datanode process

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 12,062 views
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