Hadoop Failed to set permissions of path: \tmp\ Hadoops Permission Problem Why Your Data Wont Move Hadoop the powerful framework for processing massive datasets can sometimes trip over its own feet A common e 2 min read 07-10-2024 4
"The machine with the name 'c6401' was not found configured for this Vagrant environment." Error The machine with the name c6401 was not found configured for this Vagrant environment A Troubleshooting Guide Understanding the Problem This error message The m 2 min read 07-10-2024 5
hdfs namenode -format error (no such file or directory) HDFS Namenode format Error No Such File or Directory Troubleshooting and Solutions The dreaded No such file or directory error when formatting your HDFS Namenod 3 min read 07-10-2024 5
Hive - Optimising a self-join Optimizing Self Joins in Hive A Guide to Faster Queries Hive a popular data warehouse system built on Hadoop offers a powerful platform for analyzing large data 3 min read 07-10-2024 3
Hadoop client.RMProxy: Connecting to ResourceManager Understanding the Hadoop Clients Connection to the Resource Manager A Deep Dive into RM Proxy The Problem Many Hadoop users encounter issues when their applicat 2 min read 07-10-2024 5
Couldn't create proxy provider class org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider Couldnt create proxy provider class org apache hadoop hdfs server namenode ha Configured Failover Proxy Provider Decoding the Error and Finding Solutions Scenar 2 min read 07-10-2024 3
hadoop "ipc.Client: Retrying connect to server" error ipc Client Retrying connect to server in Hadoop Understanding the Error and Solutions Problem You re running a Hadoop job and encounter the error ipc Client Ret 2 min read 07-10-2024 3
Spark - load CSV file as DataFrame? Loading CSV Files into Spark Data Frames A Simple Guide Spark is a powerful framework for large scale data processing and its ability to handle CSV files seamle 2 min read 07-10-2024 8
How to run spark-shell with YARN in client mode? Running Spark Shell with YARN in Client Mode A Comprehensive Guide Spark Shell a powerful interactive environment for exploring and experimenting with Apache Sp 2 min read 07-10-2024 8
Hadoop Job hangs at ACCEPTED, with yarn resourcemanager log java.net.UnknownHostException Hadoop Job Stuck at ACCEPTED Decoding the java net Unknown Host Exception in YARN Resource Manager Logs The Problem Imagine this you ve submitted a Hadoop job y 3 min read 07-10-2024 5
Initial job has not accepted any resources; check your cluster UI to ensure that workers are registered and have sufficient resources Job Stuck Initial Job Has Not Accepted Any Resources Troubleshooting Guide Have you encountered the frustrating Initial job has not accepted any resources error 3 min read 07-10-2024 4
"INFO : Tez session hasn't been created yet. Opening session" hang Understanding and Resolving the INFO Tez session hasnt been created yet Opening session Hang in Apache Hive Have you encountered the frustrating INFO Tez sessio 2 min read 07-10-2024 5
How to copy and convert parquet files to csv Converting Parquet Files to CSV A Comprehensive Guide Parquet files are a popular choice for storing large datasets due to their efficiency and columnar storage 2 min read 07-10-2024 11
Apache Spark: how to cancel job in code and kill running tasks? Stopping a Spark Job in Its Tracks How to Cancel and Kill Running Tasks Working with Apache Spark often involves managing large datasets and complex computation 3 min read 07-10-2024 7
What are Spark's (or Hadoop's) rules for saving a dataframe as parquet file? Unlocking the Secrets of Parquet File Storage in Spark and Hadoop Spark and Hadoop are powerful tools for processing vast amounts of data and Parquet is a popul 2 min read 07-10-2024 9
BDB0091 DB_VERSION_MISMATCH: Database environment version mismatch with Ambari 2.4.2 Ambari 2 4 2 Error BDB 0091 DB VERSION MISMATCH Understanding and Solving the Issue The Problem A Database Version Clash Imagine you re building a house and you 2 min read 07-10-2024 10
Data Loss Issue Replace Text and Put sql Processor Data Loss The Silent Killer of Your SQL Processor Imagine you re meticulously crafting a SQL query confident it will retrieve the exact information you need You 2 min read 07-10-2024 10
Where does Big Data go and how is it stored? The Hidden Worlds of Big Data Where Does It Go and How Is It Stored You use big data every day without even realizing it From the personalized recommendations o 2 min read 07-10-2024 10
Can't get Master Kerberos principal for use as renewer for Talend Batch Jobs Cracking the Kerberos Code Troubleshooting Talend Batch Jobs with Master Principal Issues Problem You re trying to run Talend Batch Jobs in a Kerberos secured e 2 min read 07-10-2024 12
Kerberos: Login failure for <user> from keytab file javax.security.auth.login.LoginException: Unable to obtain p assword from user Kerberos Login Failure and the Unable to Obtain Password Error Problem You re attempting to access a service using Kerberos authentication but you re encounteri 2 min read 07-10-2024 9
how to add columns to existing hive external table? Adding Columns to Existing Hive External Tables A Comprehensive Guide The Problem You have an existing external Hive table that needs additional columns Maybe y 3 min read 06-10-2024 7
Raw json field type in hive Demystifying the Raw JSON Field Type in Hive The world of data is increasingly diverse with JSON Java Script Object Notation becoming a ubiquitous format for st 2 min read 06-10-2024 7
Getting FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask exception while access Hive views FAILED Execution Error return code 2 from org apache hadoop hive ql exec mr Map Red Task Debugging Hive View Access Errors Have you encountered the dreaded FAIL 3 min read 06-10-2024 9
How to read Parquet file from S3 without spark? Java Reading Parquet Files from S3 Without Spark A Java Guide Parquet a columnar storage format is widely used for storing large datasets in big data applications Of 3 min read 06-10-2024 9
Hadoop localhost:9870 browser interface is not working Hadoop Localhost 9870 Not Working Heres What to Do Many Hadoop users encounter the frustrating issue where the web UI accessible at localhost 9870 fails to load 2 min read 05-10-2024 9