Skip to content Skip to sidebar Skip to footer
Showing posts with the label Hadoop

Is It Possible To Save Files In Hadoop Without Saving Them In Local File System?

Is it possible to save files in Hadoop without saving them in local file system? I would like to do… Read more Is It Possible To Save Files In Hadoop Without Saving Them In Local File System?

How To Populate A Postgresql Database With Mrjob And Hadoop

I would like to populate a database of Postgresql by using a mapper with MrJob and Hadoop 2.7.1. I … Read more How To Populate A Postgresql Database With Mrjob And Hadoop

Reading And Writing From Hive Tables With Spark After Aggregation

We have a hive warehouse, and wanted to use spark for various tasks (mainly classification). At tim… Read more Reading And Writing From Hive Tables With Spark After Aggregation

Pyspark Dynamic Column Computation

Below is my spark data frame a b c 1 3 4 2 0 0 4 1 0 2 2 0 My output should be as below a b c 1 3 … Read more Pyspark Dynamic Column Computation

Managing Dependencies With Hadoop Streaming?

I have a quick Hadoop Streaming question. If I'm using Python streaming and I have Python packa… Read more Managing Dependencies With Hadoop Streaming?

Spark On Windows 10. 'files\spark\bin\..\jars""\' Is Not Recognized As An Internal Or External Command

I am very frustrated by Spark. An evening wasted thinking that I was doing something wrong but I ha… Read more Spark On Windows 10. 'files\spark\bin\..\jars""\' Is Not Recognized As An Internal Or External Command

Why Am I Getting These Strange Connection Errors When Reading Or Writing To Hadoop File System With A Python Script?

I wrote a python code to read and write to a hadoop file system with IP hdfs_ip. It takes 3 argumen… Read more Why Am I Getting These Strange Connection Errors When Reading Or Writing To Hadoop File System With A Python Script?

Exceptions When Reading Tutorial Csv File In The Cloudera Vm

I'm trying to do a Spark tutorial that comes with the Cloudera Virtual Machine. But even though… Read more Exceptions When Reading Tutorial Csv File In The Cloudera Vm