1. Use Cases and Fail Over Scenarios

This section provides information on the following:

 1.1. Supported use cases

This solution enables the following Hadoop system administration use cases:

  • Planned failure of the HDP Master Service (maintenance tasks like software or hardware upgrade)

  • Unplanned failure of the HDP Master Service (hardware or OS failure, software bugs, JVM related issues, etc.)

 1.2. Supported fail over scenarios

The following failover scenarios are supported:

  • HDP Master Service service failure

  • HDP Master Service JVM failure

  • Hung HDP Master Service daemon or hung operating system

  • HDP Master Service operating system failure

  • HDP Master Service machine power failure

  • Failure of NIC cards on the HDP Master Service machine

  • Network failure for the HDP Master Service machine


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