Method: googleapis.spanner.v1.projects.instances.databases.changequorum

ChangeQuorum is strictly restricted to databases that use dual-region instance configurations. Initiates a background operation to change the quorum of a database from dual-region mode to single-region mode or vice versa. The returned long-running operation has a name of the format projects//instances//databases//operations/ and can be used to track execution of the ChangeQuorum. The metadata field type is ChangeQuorumMetadata. Authorization requires spanner.databases.changequorum permission on the resource database.

This method waits—the workflow execution is paused—until the operation is complete, fails, or times out. The default timeout value is 1800 seconds (30 minutes) and can be changed to a maximum value of 31536000 seconds (one year) for long-running operations using the connector_params field.

The connector uses polling to monitor the long-running operation, which might generate additional billable steps. The polling policy for the long-running operation can be configured. For example, if you set skip_polling to True, the connector invocation call is non-blocking if the initial request succeeds; otherwise, retries might occur.

For more information about connector-specific parameters (connector_params), see Invoke a connector call.

For more information about retries and long-running operations, see Understand connectors.

Arguments

Parameters
name

string

Required. Name of the database in which to apply ChangeQuorum. Values are of the form projects//instances//databases/.
body

object (ChangeQuorumRequest)

Required.

Raised exceptions

Exceptions
ConnectionError In case of a network problem (such as DNS failure or refused connection).
HttpError If the response status is >= 400 (excluding 429 and 503).
TimeoutError If a long-running operation takes longer to finish than the specified timeout limit.
TypeError If an operation or function receives an argument of the wrong type.
ValueError If an operation or function receives an argument of the right type but an inappropriate value. For example, a negative timeout.
OperationError If the long-running operation finished unsuccessfully.
ResponseTypeError If the long-running operation returned a response of the wrong type.

Response

If successful, the response contains an instance of Operation.

Subworkflow snippet

Some fields might be optional or required. To identify required fields, refer to the API documentation.

YAML

- changequorum:
    call: googleapis.spanner.v1.projects.instances.databases.changequorum
    args:
        name: ...
        body:
            etag: ...
            name: ...
            quorumType:
                dualRegion: ...
                singleRegion:
                    servingLocation: ...
    result: changequorumResult

JSON

[
  {
    "changequorum": {
      "call": "googleapis.spanner.v1.projects.instances.databases.changequorum",
      "args": {
        "name": "...",
        "body": {
          "etag": "...",
          "name": "...",
          "quorumType": {
            "dualRegion": "...",
            "singleRegion": {
              "servingLocation": "..."
            }
          }
        }
      },
      "result": "changequorumResult"
    }
  }
]