Request Syntax URI Request Parameters Request Body Response Syntax Response Elements Errors See Also

GetEngineStatus

Retrieves the status of the graph database on the host.

When invoking this operation in a Neptune cluster that has IAM authentication enabled, the IAM user or role making the request must have a policy attached that allows the neptune-db:GetEngineStatus IAM action in that cluster.

Request Syntax


GET /status HTTP/1.1

URI Request Parameters

The request does not use any URI parameters.

Request Body

The request does not have a request body.

Response Syntax


HTTP/1.1 200
Content-type: application/json

{
   "dbEngineVersion": "string",
   "dfeQueryEngine": "string",
   "features": { 
      "string" : JSON value 
   },
   "gremlin": { 
      "version": "string"
   },
   "labMode": { 
      "string" : "string" 
   },
   "opencypher": { 
      "version": "string"
   },
   "role": "string",
   "rollingBackTrxCount": number,
   "rollingBackTrxEarliestStartTime": "string",
   "settings": { 
      "string" : "string" 
   },
   "sparql": { 
      "version": "string"
   },
   "startTime": "string",
   "status": "string"
}

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

dbEngineVersion

Set to the Neptune engine version running on your DB cluster. If this engine version has been manually patched since it was released, the version number is prefixed by Patch-.

Type: String

dfeQueryEngine

Set to enabled if the DFE engine is fully enabled, or to viaQueryHint (the default) if the DFE engine is only used with queries that have the useDFE query hint set to true.

Type: String

features

Contains status information about the features enabled on your DB cluster.

Type: String to JSON value map

gremlin

Contains information about the Gremlin query language available on your cluster. Specifically, it contains a version field that specifies the current TinkerPop version being used by the engine.

Type: QueryLanguageVersion object

labMode

Contains Lab Mode settings being used by the engine.

Type: String to string map

opencypher

Contains information about the openCypher query language available on your cluster. Specifically, it contains a version field that specifies the current operCypher version being used by the engine.

Type: QueryLanguageVersion object

role

Set to reader if the instance is a read-replica, or to writer if the instance is the primary instance.

Type: String

rollingBackTrxCount

If there are transactions being rolled back, this field is set to the number of such transactions. If there are none, the field doesn't appear at all.

Type: Integer

rollingBackTrxEarliestStartTime

Set to the start time of the earliest transaction being rolled back. If no transactions are being rolled back, the field doesn't appear at all.

Type: String

settings

Contains information about the current settings on your DB cluster. For example, contains the current cluster query timeout setting (clusterQueryTimeoutInMs).

Type: String to string map

sparql

Contains information about the SPARQL query language available on your cluster. Specifically, it contains a version field that specifies the current SPARQL version being used by the engine.

Type: QueryLanguageVersion object

startTime

Set to the UTC time at which the current server process started.

Type: String

status

Set to healthy if the instance is not experiencing problems. If the instance is recovering from a crash or from being rebooted and there are active transactions running from the latest server shutdown, status is set to recovery.

Type: String

Errors

For information about the errors that are common to all actions, see Common Errors.

ClientTimeoutException

Raised when a request timed out in the client.

HTTP Status Code: 408

ConstraintViolationException

Raised when a value in a request field did not satisfy required constraints.

HTTP Status Code: 400

IllegalArgumentException

Raised when an argument in a request is not supported.

HTTP Status Code: 400

InternalFailureException

Raised when the processing of the request failed unexpectedly.

HTTP Status Code: 500

InvalidArgumentException

Raised when an argument in a request has an invalid value.

HTTP Status Code: 400

PreconditionsFailedException

Raised when a precondition for processing a request is not satisfied.

HTTP Status Code: 400

TooManyRequestsException

Raised when the number of requests being processed exceeds the limit.

HTTP Status Code: 429

UnsupportedOperationException

Raised when a request attempts to initiate an operation that is not supported.

HTTP Status Code: 400