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  • Watch GroomServer registration/ deregistration. Ephemeral.
  • Register to Supervisor.
  • Maintain (local) groom list. Persistent

Monitored GroomServer State

  • Normal
  • Warning
  • Offline

...

Scenario

  • When a groom registers, it
    # check and move groom out of quarantined set if any
    # cache groom server spec info.
  • When detecting a GroomServer offline, it
    # quarantine the offline groom
    # trigger reschedule tasks event



Source

GroomServerManager.java