In my previous post , I showed how to configure a single node Hadoop instance on Windows 10. The steps are not too difficult to follow if you have Java programming backgr...
View detailThis page summarizes the installation guides about big data tools on Windows through Windows Subsystem for Linux (WSL). ...
View detailPreviously, I demonstrated how to configured Apache Hive 3.0.0 on Windows 10. Apache Hive 3.0.0 Installation on Windows 10 Step by Step Guide...
View detailThis page summarizes the steps to install Hadoop 3.0.0 in your Windows environment. Reference page: https://wiki.apache.org/hadoop/Hadoop2OnWindows ...
View detailIf you have been following my website, you would know I’ve published a number of articles about installing big data tools/framewo...
View detailCopy file from HDFS to local Use the following command: hadoop fs [-copyToLocal [-f] [-p] [-ignoreCrc] [-crc] <src> ... <localdst>] For example, copy a file from /hdfs-file.txt in HDFS to local /tmp/ using the following command: ...
View detailSolution to fix the issue If you have been running Hadoop on Windows machines, you may encounter issues about unhealthy data nodes. Usually this will happen if there is no enough disk space in your local drive. For example, if I start the HDFS and YARN demons under the context...
View detailIssue After finishing installation Hadoop 3.0.0 in my Windows: Install Hadoop 3.0.0 in Windows (Single Node) , I got the following error after I formated the name node several ti...
View detailIn Sqoop, there are multiple approaches to pass in passwords for RDBMS. Options Option 1 - clear password through --password argument sqoop [subcommand] --username user --password pwd This is the weakest approach as password is exposed directly...
View detailIn Safe Mode, the HDFS cluster is read-only. After completion of block replication maintenance activity, the name node leaves safe mode automatically. If you try to delete files in safe mode, the following exception may raise: org.apache.hadoop.ipc.RemoteException(org.apac...
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