Cloud Spanner V1 Client - Class ReplicaType (1.58.4)

Version 1.58.4

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Reference documentation and code samples for the Cloud Spanner V1 Client class ReplicaType.

Indicates the type of replica. See the replica types documentation for more details.

Protobuf type google.spanner.admin.instance.v1.ReplicaInfo.ReplicaType

Methods

name

Parameter
Name	Description
value	mixed

value

Parameter
Name	Description
name	mixed

Constants

TYPE_UNSPECIFIED

Value: 0

Not specified.

Generated from protobuf enum TYPE_UNSPECIFIED = 0;

READ_WRITE

Value: 1

Read-write replicas support both reads and writes. These replicas:

• Maintain a full copy of your data.

• Serve reads.

• Can vote whether to commit a write.
• Participate in leadership election.
• Are eligible to become a leader.

Generated from protobuf enum READ_WRITE = 1;

READ_ONLY

Value: 2

Read-only replicas only support reads (not writes). Read-only replicas:

• Maintain a full copy of your data.

• Serve reads.

• Do not participate in voting to commit writes.
• Are not eligible to become a leader.

Generated from protobuf enum READ_ONLY = 2;

WITNESS

Value: 3

Witness replicas don't support reads but do participate in voting to commit writes. Witness replicas:

• Do not maintain a full copy of data.

• Do not serve reads.

• Vote whether to commit writes.
• Participate in leader election but are not eligible to become leader.

Generated from protobuf enum WITNESS = 3;