Version: v1.0.3 Latest Latest

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Published: Jul 6, 2017 License: Apache-2.0 Imports: 16 Imported by: 0




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func AdditionalInitialDescriptors

func AdditionalInitialDescriptors(
	ctx context.Context, db db,
) (descriptors int, ranges int, _ error)

AdditionalInitialDescriptors returns the number of system descriptors and ranges that have been added by migrations. This is needed for certain tests, which check the number of ranges at node startup.

NOTE: This value may be out-of-date if another node is actively running migrations, and so should only be used in test code where the migration lifecycle is tightly controlled.


type Manager

type Manager struct {
	// contains filtered or unexported fields

Manager encapsulates the necessary functionality for handling migrations of data in the cluster.

func NewManager

func NewManager(
	stopper *stop.Stopper,
	db *client.DB,
	executor *sql.Executor,
	clock *hlc.Clock,
	memMetrics *sql.MemoryMetrics,
	clientID string,
) *Manager

NewManager initializes and returns a new Manager object.

func (*Manager) EnsureMigrations

func (m *Manager) EnsureMigrations(ctx context.Context) error

EnsureMigrations should be run during node startup to ensure that all required migrations have been run (and running all those that are definitely safe to run).

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