Top "Hortonworks-data-platform" questions

Hortonworks Data Platform (HDP) is a distribution of an open-source Apache Hadoop data platform containing a set of projects on top of the HDFS and YARN as core layer of Hadoop.

Usecases for mapred.job.queue.name

What are the real world use cases on using map reduce job queues i.e. the value of mapred.job.…

hadoop mapreduce cloudera hortonworks-data-platform
Drop Hive external table WITHOUT removing data

The goal is to destroy a Hive schema but keep the data underneath. Given a Hive external table, created for …

hadoop hive hortonworks-data-platform
Hortonworks HA Namenodes gives an error "Operation category READ is not supported in state standby"

My hadoop cluster HA active namenode (host1) suddenly switch to standby namenode(host2). I could not found any error in …

hadoop hortonworks-data-platform
Spark num-executors

I have setup a 10 node HDP platform on AWS. Below is my configuration 2 Servers - Name Node and Standby Name …

apache-spark yarn hortonworks-data-platform
Requests hang when using Hiveserver2 Thrift Java client

This is a follow up question to this question where I ask what the Hiveserver 2 thrift java client API is. …

java hadoop hive thrift hortonworks-data-platform
How to remove an ambari service after they have been added

After you add a service to a node, how do you go about removing that service from say one node …

hadoop hdfs hortonworks-data-platform
Got InterruptedException while executing word count mapreduce job

I have installed Cloudera VM version 5.8 on my machine. When I execute word count mapreduce job, it throws below exception. `16/09/06 06:55:49 …

hadoop mapreduce cloudera hortonworks-data-platform hortonworks-sandbox
Host and port to use to list a directory in hdfs

First of all, I'm using HortonWorks Sandbox as Hadoop dist, with no custom configuration at all. Once connected on the …

java hadoop hdfs hortonworks-data-platform
No such file or directory error when using Hadoop fs --copyFromLocal command

I have a local VM that has Hortonworks Hadoop and hdfs installed on it. I ssh'ed into the VM from …

hadoop hdfs hortonworks-data-platform
Spark SQL "Limit"

Env : spark 1.6 using Hadoop. Hortonworks Data Platform 2.5 I have a table with 10 billion records and I would like to get 300 …

hadoop apache-spark hive hortonworks-data-platform