If you have been following my website, you would know I’ve published a number of articles about installing big data tools/framewo...
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 detailIn 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 detailWhen 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...
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 detailScenario 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...
View detailIn 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...
View detailThis page summarizes the installation guides about big data tools on Windows through Windows Subsystem for Linux (WSL). ...
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...
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