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lite-log hadoop hdfs

Resolve Hadoop RemoteException - Name node is in safe mode

103 views   0 comments last modified about 6 months ago

In 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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hadoop hdfs parquet sqoop

Configure Sqoop in a Edge Node of Hadoop Cluster

499 views   0 comments last modified about 6 months ago

This page continues with the following documentation about configuring a Hadoop multi-nodes cluster via adding a new edge node to configure administration or client tools. ...

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hadoop yarn

Configure YARN and MapReduce Resources in Hadoop Cluster

226 views   0 comments last modified about 6 months ago

When configuring YARN and MapReduce in Hadoop cluster, it is very important to configure the memory and virtual processors correctly. If the configurations are incorrect, the nodes may not be able to start properly and the applications may not be able to run successfully. For example...

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hadoop yarn hdfs

Configure Hadoop 3.1.0 in a Multi Node Cluster

2238 views   0 comments last modified about 6 months ago

Previously, I summarized the steps to install Hadoop in a single node Windows machine. Install Hadoop 3.0.0 in Windows (Single Node) In this page, I...

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Install Big Data Tools (Spark, Zeppelin, Hadoop) in Windows for Learning and Practice

652 views   2 comments last modified about 6 months ago

Are you a Windows/.NET developer and willing to learn big data concepts and tools in your Windows? If yes, you can follow the links below to install them in your PC. The installations are usually easier to do in Linux/UNIX but they are not difficult to implement in Windows either since the...

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hadoop yarn hdfs

Default Ports Used by Hadoop Services (HDFS, MapReduce, YARN)

1050 views   0 comments last modified about 6 months ago

This page summarizes the default ports used by Hadoop services. It is useful when configuring network interfaces in a cluster. Hadoop 3.1.0 HDFS The secondary namenode http/https server address and port. ...

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sql server spark hdfs parquet sqoop

Load Data into HDFS from SQL Server via Sqoop

503 views   0 comments last modified about 6 months ago

This page shows how to import data from SQL Server into Hadoop via Apache Sqoop. Prerequisites Please follow the link below to install Sqoop in your machine if you don’t have one environment ready. ...

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sqoop

Install Apache Sqoop in Windows

821 views   0 comments last modified about 6 months ago

This page summarizes the steps required to install Apache Sqoop (v1.4.7) in Windows 10 environment. What is Sqoop Sqoop is an ETL tool for Hadoop,which is designed to efficiently transfer data between structured (RDBMS), semi-structured (Cassandra, Hbase and etc.) and unstructured ...

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sql server zeppelin

Connecting Apache Zeppelin to your SQL Server

396 views   0 comments last modified about 6 months ago

This page demonstrates the steps you need to connect to SQL Server in Zeppelin. There are many ways to implement this, for example SQL Server interpreters in GitHub. In this page, I am going to use the JDBC driver to connect to SQL Server instead of using third party interpreters. For authe...

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Install Teradata Express 15.0.0.8 by Using VMware Player 6.0 in Windows

12826 views   23 comments last modified about 5 years ago

In this article, I am going to introduce how to install Teradata Express in virtual machines in Windows. Download software 1) Download VMware Player for Windows 32-bit and 64-bit from the following link (version 6.0): ...

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