While starting namenode you might come across this error.
Class org.apache.hadoop.thriftfs.NamenodePlugin not found
In cdh4 it does not require a plug-in on the NameNode or DataNodes. Hence all the configuration related to that should be removed from namenode and datanode hdfs-site.xml
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The error "Class org.apache.hadoop.thriftfs.NamenodePlugin not found" typically indicates that your Hadoop setup is missing the necessary Thrift filesystem plugin, which is required for Thrift-based operations with the Namenode. To resolve this issue, ensure that you have the Thrift dependency included in your project. You can do this by adding the appropriate Thrift libraries to your classpath. Additionally, check your Hadoop configuration files to ensure that the plugin is correctly referenced and available in your environment.
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If you're seeing the Class org.apache.hadoop.thriftfs.NamenodePlugin not found error when starting the NameNode, it means your configuration is outdated. In CDH4, this plugin is no longer required, so ensure you remove any related configurations from the hdfs-site.xml files on both the NameNode and DataNodes to resolve this issue. https://iimskills.com/data-science-courses-in-gurgaon/
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The error "Class org.apache.hadoop.thriftfs.NamenodePlugin not found" typically occurs when the Hadoop environment is missing required dependencies, specifically the Thrift plugin that interacts with the Hadoop NameNode. To resolve this issue, ensure that:
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3. **Dependencies in Hadoop config**: If using a custom Hadoop configuration, ensure that the Thrift plugin is correctly referenced in the `core-site.xml` or `hdfs-site.xml` configuration files.
You may need to download the appropriate versions of the required libraries and include them in your Hadoop setup.
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