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The following system critical errors should be handled with proposed approach:

• File IO errors. Usually IOException's threw by read/write operations on file system. The following subsystems should be considered as critical:
  
  • WAL
  • Page store
  • Meta store
  • Binary meta store
• IgniteOutOfMemoryException
• OutOfMemoryError (we should have some memory reserved for this case at node startup to increase chances to handle OOM)
• AssertionError (we should handle assertions as failures in case -ea flag set) (should be covered at Throwable catch for every system worker as well).
  
  

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