文件範例儲存庫中有更多 AWS SDK可用的範例。 AWS SDK
本文為英文版的機器翻譯版本,如內容有任何歧義或不一致之處,概以英文版為準。
ModifyCluster
搭配 AWS SDK或 使用 CLI
下列程式碼範例示範如何使用 ModifyCluster
。
動作範例是大型程式的程式碼摘錄,必須在內容中執行。您可以在下列程式碼範例的內容中看到此動作:
- CLI
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- AWS CLI
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將安全群組與 ClusterThis 範例建立關聯,示範如何將叢集安全群組與指定的叢集建立關聯。命令:
aws redshift modify-cluster --cluster-identifier mycluster --cluster-security-groups mysecuritygroup
修改 的維護時段 ClusterThis ,示範如何將叢集的每週偏好維護時段變更為從週日晚上 11:15 開始,到週一凌晨 3:15 結束的最短四個小時時段。命令:
aws redshift modify-cluster --cluster-identifier mycluster --preferred-maintenance-window Sun:23:15-Mon:03:15
變更 ClusterThis 範例的主密碼,示範如何變更叢集的主密碼。命令:
aws redshift modify-cluster --cluster-identifier mycluster --master-user-password A1b2c3d4
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如需API詳細資訊,請參閱 命令參考 ModifyCluster
中的 。 AWS CLI
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- Go
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- SDK for Go V2
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注意
還有更多 。 GitHub尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 import ( "context" "errors" "log" "time" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/redshift" "github.com/aws/aws-sdk-go-v2/service/redshift/types" ) // RedshiftActions wraps Redshift service actions. type RedshiftActions struct { RedshiftClient *redshift.Client } // ModifyCluster sets the preferred maintenance window for the given cluster. func (actor RedshiftActions) ModifyCluster(ctx context.Context, clusterId string, maintenanceWindow string) *redshift.ModifyClusterOutput { // Modify the cluster's maintenance window input := &redshift.ModifyClusterInput{ ClusterIdentifier: aws.String(clusterId), PreferredMaintenanceWindow: aws.String(maintenanceWindow), } var opErr *types.InvalidClusterStateFault output, err := actor.RedshiftClient.ModifyCluster(ctx, input) if err != nil && errors.As(err, &opErr) { log.Println("Cluster is in an invalid state.") panic(err) } else if err != nil { log.Printf("Failed to modify Redshift cluster: %v\n", err) panic(err) } log.Printf("The cluster was successfully modified and now has %s as the maintenance window\n", *output.Cluster.PreferredMaintenanceWindow) return output }
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如需API詳細資訊,請參閱 參考 ModifyCluster
中的 。 AWS SDK for Go API
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- Java
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- SDK 適用於 Java 2.x
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注意
還有更多 。 GitHub尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 修改叢集。
/** * Modifies an Amazon Redshift cluster asynchronously. * * @param clusterId the identifier of the cluster to be modified * @return a {@link CompletableFuture} that completes when the cluster modification is complete */ public CompletableFuture<ModifyClusterResponse> modifyClusterAsync(String clusterId) { ModifyClusterRequest modifyClusterRequest = ModifyClusterRequest.builder() .clusterIdentifier(clusterId) .preferredMaintenanceWindow("wed:07:30-wed:08:00") .build(); return getAsyncClient().modifyCluster(modifyClusterRequest) .whenComplete((clusterResponse, exception) -> { if (exception != null) { if (exception.getCause() instanceof RedshiftException) { logger.info("Error: {} ", exception.getMessage()); } else { logger.info("Unexpected error: {} ", exception.getMessage()); } } else { logger.info("The modified cluster was successfully modified and has " + clusterResponse.cluster().preferredMaintenanceWindow() + " as the maintenance window"); } }); }
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如需API詳細資訊,請參閱 參考 ModifyCluster中的 。 AWS SDK for Java 2.x API
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- JavaScript
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- SDK 適用於 JavaScript (v3)
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注意
還有更多 。 GitHub尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 建立用戶端。
import { RedshiftClient } from "@aws-sdk/client-redshift"; // Set the AWS Region. const REGION = "REGION"; //Set the Redshift Service Object const redshiftClient = new RedshiftClient({ region: REGION }); export { redshiftClient };
修改叢集。
// Import required AWS SDK clients and commands for Node.js import { ModifyClusterCommand } from "@aws-sdk/client-redshift"; import { redshiftClient } from "./libs/redshiftClient.js"; // Set the parameters const params = { ClusterIdentifier: "CLUSTER_NAME", MasterUserPassword: "NEW_MASTER_USER_PASSWORD", }; const run = async () => { try { const data = await redshiftClient.send(new ModifyClusterCommand(params)); console.log("Success was modified.", data); return data; // For unit tests. } catch (err) { console.log("Error", err); } }; run();
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如需API詳細資訊,請參閱 參考 ModifyCluster中的 。 AWS SDK for JavaScript API
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- Kotlin
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- SDK 適用於 Kotlin
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注意
還有更多 。 GitHub尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 修改叢集。
suspend fun modifyCluster(clusterId: String?) { val modifyClusterRequest = ModifyClusterRequest { clusterIdentifier = clusterId preferredMaintenanceWindow = "wed:07:30-wed:08:00" } RedshiftClient { region = "us-west-2" }.use { redshiftClient -> val clusterResponse = redshiftClient.modifyCluster(modifyClusterRequest) println( "The modified cluster was successfully modified and has ${clusterResponse.cluster?.preferredMaintenanceWindow} as the maintenance window", ) } }
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如需API詳細資訊,請參閱ModifyCluster
中的 AWS SDK for Kotlin API參考 。
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- Python
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- SDK for Python (Boto3)
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注意
還有更多 。 GitHub尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 class RedshiftWrapper: """ Encapsulates Amazon Redshift cluster operations. """ def __init__(self, redshift_client): """ :param redshift_client: A Boto3 Redshift client. """ self.client = redshift_client def modify_cluster(self, cluster_identifier, preferred_maintenance_window): """ Modifies a cluster. :param cluster_identifier: The cluster identifier. :param preferred_maintenance_window: The preferred maintenance window. """ try: self.client.modify_cluster( ClusterIdentifier=cluster_identifier, PreferredMaintenanceWindow=preferred_maintenance_window, ) except ClientError as err: logging.error( "Couldn't modify a cluster. Here's why: %s: %s", err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise
下列程式碼會實例化 RedshiftWrapper 物件。
client = boto3.client("redshift") redhift_wrapper = RedshiftWrapper(client)
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如需API詳細資訊,請參閱 ModifyCluster 中的 AWS SDK for Python (Boto3) API參考 。
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