local_offer hdfs local_offer hadoop local_offer windows
Network Attached Storage are commonly used in many enterprises where files are stored remotely on those servers. They typically provide access to files using network file sharing protocols such as ...
local_offer windows10 local_offer hadoop local_offer hdfs
Issue When installing Hadoop 3.2.1 on Windows 10, you may encounter the following error when trying to format HDFS namnode: ERROR namenode.NameNode: Failed to start namenode. The error happens when running the following comm...
local_offer windows10 local_offer hadoop
This article provides detailed steps about how to compile and build Hadoop (incl. native libs) on Windows 10. The following guide is based on Hadoop release 3.2.1. ...
local_offer windows10 local_offer hadoop local_offer yarn
This detailed step-by-step guide shows you how to install the latest Hadoop (v3.2.1) on Windows 10. It also provides a temporary fix for bug HDFS-14084 (java.lang.UnsupportedOperationException INFO).
List and kill jobs in Shell / Hadoop
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The following code snippet shows how to list and kill Hadoop jobs including (MapReduce and YARN jobs).
Check HDFS folder size in Shell / Hadoop
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Hadoop provides a number of CLIs that can be used to perform many tasks/activities. This code snippet shows you how to check file/folder size in HDFS.
local_offer hadoop local_offer shell
Hadoop provides a number of CLIs. hadoop job command can be used to retrieve running job list.
You can also use YARN resource manager UI to view the jobs too.
local_offer spark local_offer hadoop local_offer pyspark local_offer oozie local_offer hue
When submitting Spark applications to YARN cluster, two deploy modes can be used: client and cluster. For client mode (default), Spark driver runs on the machine that the Spark application was submitted while for cluster mode, the driver runs on a random node in a cluster. On this page, I am goin...
local_offer spark local_offer hadoop local_offer yarn local_offer oozie
Scenario Recently I created an Oozie workflow which contains one Spark action. The Spark action master is yarn and deploy mode is cluster. Each time when the job runs about 30 minutes, the application fails with errors like the following: Application applicatio...
Read Hadoop Credential in PySpark
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In one of my previous articles about Password Security Solution for Sqoop , I mentioned creating credential using hadoop credential command. The credentials are stored in JavaKey...
