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Apache Hadoop YARN - Hadoop Open Source Code

Apache Hadoop YARN

  • YARN stands for Yet Another Resource Negotiator.

  • It allocates system resources to the different applications running in a Hadoop cluster and schedules the tasks on different cluster nodes

  • It sits between HDFS and the processing engines being used to run applications in the cluster architecture

  • It dynamically allocates the resources to applications depending on the requirements, which improves resource utilization and application performance compared with MapReduce’s more static allocation approach.

  • It enables the access of Hadoop for batch, interactive and real-time engines by the multiple access engines, which supports the simultaneous access of the same data set.


  • Multi-tenancy

  • Cluster utilization

  • Scalability

  • Compatibility