MigrationProgressEvent

An event signifying the start of a new step in a migration from Cloud Datastore to Cloud Firestore in Datastore mode.

JSON representation 
{
  "step": enum (MigrationStep),

  // Union field step_details can be only one of the following:
  "prepareStepDetails": {
    object (PrepareStepDetails)
  },
  "redirectWritesStepDetails": {
    object (RedirectWritesStepDetails)
  }
  // End of list of possible types for union field step_details.
}
Fields
step

enum (MigrationStep)

The step that is starting.

An event with step set to START indicates that the migration has been reverted back to the initial pre-migration state.
Union field step_details. Details about this step. step_details can be only one of the following:
prepareStepDetails

object (PrepareStepDetails)

Details for the PREPARE step.
redirectWritesStepDetails

object (RedirectWritesStepDetails)

Details for the REDIRECT_WRITES step.

PrepareStepDetails

Details for the PREPARE step.

JSON representation 
{
  "concurrencyMode": enum (ConcurrencyMode)
}
Fields
concurrencyMode

enum (ConcurrencyMode)

The concurrency mode this database will use when it reaches the REDIRECT_WRITES step.

RedirectWritesStepDetails

Details for the REDIRECT_WRITES step.

JSON representation 
{
  "concurrencyMode": enum (ConcurrencyMode)
}
Fields
concurrencyMode

enum (ConcurrencyMode)

Ths concurrency mode for this database.