Mapr - Warden

Card Puncher Data Processing


Warden is a light Java application that runs on all the nodes in a cluster and coordinates cluster services.

Warden’s job on each node is to:

  • start,
  • stop,
  • or restart

the appropriate services, and allocate the correct amount of memory to them.

Warden makes extensive use of the znode abstraction (ZooKeeper) to monitor the state of cluster services.

Documentation / Reference

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Card Puncher Data Processing
Mapr - Service


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