Hadoop - Daemons / Process / Services

About

Hadoop process

List

Common:

• Key management server

Hdfs:

• Namenode – on the head node
• Datanode – on the worker nodes
• Rest API:
  • HDFS - HttpFS (Rest Api)
  • HDFS - WebHDFS (Rest API )

Yarn:

• ResourceManager – on the head node
  • Web Proxy - by default included in the ResourceManager
• NodeManager – on the worker node
• Timeline server