Recent questions tagged big-data

+1 vote
1 answer

How does Hadoop process records split across block boundaries?

Dec 7, 2020 in Big Data Hadoop by Roshni
 • 10,520 points • 214 views
0 votes
1 answer

Name node is in safe mode. Not able to leave

Dec 7, 2020 in Big Data Hadoop by Roshni
 • 10,520 points • 842 views
0 votes
1 answer

How to list all Kafka topics?

Dec 7, 2020 in Apache Kafka by akhtar
 • 38,240 points • 8,781 views
0 votes
1 answer

What is a broker in Kafka Cluster?

Dec 7, 2020 in Apache Kafka by akhtar
 • 38,240 points • 505 views
0 votes
1 answer

What is a producer in Kafka Cluster?

Dec 7, 2020 in Apache Kafka by akhtar
 • 38,240 points • 239 views
0 votes
1 answer

How to create a Kafka producer?

Dec 7, 2020 in Apache Kafka by MD
 • 95,380 points • 226 views
0 votes
1 answer

How to create a Kafka topic in a broker?

Dec 7, 2020 in Apache Kafka by akhtar
 • 38,240 points • 719 views
0 votes
1 answer

How to start Kafka server?

Dec 7, 2020 in Apache Kafka by akhtar
 • 38,240 points • 436 views
0 votes
1 answer

How to start Zookeeper service?

Dec 7, 2020 in Apache Kafka by akhtar
 • 38,240 points • 1,124 views
0 votes
2 answers

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

Nov 20, 2020 in Big Data Hadoop by anonymous
 • 8,910 points • 4,071 views
0 votes
2 answers

How to know Hive and Hadoop versions from command prompt?

Nov 20, 2020 in Big Data Hadoop by Rajiv
 • 8,910 points • 3,332 views
0 votes
1 answer

How to set variables in HIVE scripts

Nov 20, 2020 in Big Data Hadoop by anonymous
 • 10,520 points • 3,515 views
+1 vote
1 answer

When to use Hadoop, HBase, Hive and Pig?

Nov 20, 2020 in Big Data Hadoop by anonymous
 • 10,520 points • 380 views
0 votes
1 answer

Difference between Pig and Hive? Why have both? [closed]

Nov 20, 2020 in Big Data Hadoop by Roshni
 • 10,520 points • 202 views
0 votes
1 answer

How to start working with scala?

Nov 16, 2020 in Big Data Hadoop by anonymous
 • 10,520 points • 166 views
0 votes
1 answer

Zookeeper server going down frequently.

Nov 9, 2020 in Big Data Hadoop by B
 • 210 points • 768 views
0 votes
1 answer

HDP Upgrade Issue in 2.6.5.

Nov 7, 2020 in Big Data Hadoop by B
 • 210 points • 328 views
0 votes
1 answer

Validating HA for ranger KMS

Nov 7, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 388 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 • 333 views
0 votes
1 answer

How to read Avro Partition Data?

Nov 4, 2020 in Apache Spark by akhtar
 • 38,240 points • 895 views
+1 vote
1 answer

How to write Spark DataFrame to Avro Data File?

Nov 4, 2020 in Apache Spark by akhtar
 • 38,240 points • 1,922 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 • 1,937 views
0 votes
1 answer

Ranger Kms having multiple instance enabled.

Oct 23, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 497 views
+1 vote
1 answer

How to copy file from Local file system to HDFS?

Oct 20, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 1,166 views
0 votes
1 answer

Drop an index from a Hive table.

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 654 views
0 votes
1 answer

How to create an index on Hive table?

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 480 views
0 votes
1 answer

Drop a table in Hive.

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 195 views
0 votes
1 answer

How to add a column in Hive table?

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 942 views
0 votes
1 answer

How to rename the Hive table?

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 3,216 views
0 votes
1 answer

Ranger kms is not coming up

Oct 18, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 431 views
0 votes
1 answer

How to write a HDF file from a DataFrame?

Oct 18, 2020 in Python by akhtar
 • 38,240 points • 596 views
0 votes
1 answer

How to write Reducer code for Hadoop?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 236 views
0 votes
1 answer

How to write mapper code for Hadoop in Python?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 267 views
0 votes
1 answer

How to find the status of MapReduce Job?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 303 views
0 votes
1 answer

Create hive table with location.

Oct 16, 2020 in Big Data Hadoop by MD
 • 95,380 points • 212 views
0 votes
1 answer

How to create hive table without location?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 406 views
0 votes
1 answer

How to update the existing record in HDFS?

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 1,278 views
0 votes
1 answer

IOException: All datanodes are bad.

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 864 views
0 votes
1 answer

ERROR: Cannot set priority of datanode process

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 6,448 views
0 votes
1 answer

Checksum verification in Hadoop.

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,240 points • 719 views
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