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Articles about Apache Hadoop installation, performance tuning and general tutorials.

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local_offer hadoop local_offer hdfs

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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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local_offer hadoop local_offer yarn

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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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local_offer hadoop local_offer yarn local_offer hdfs

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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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local_offer SSIS local_offer hadoop local_offer hdfs

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Context SQL Server Integration Service ( SSIS ) has tasks to perform operations against Hadoop, for example: Hadoop File System Task Hadoop Hive Task Hadoop Pig Task In Data Flow Task, you can also use: Hadoop HDFS Source ...

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