aws-cdk-lib: MSK Connectors update fails due to Invalid Request

[AleX77NP]

Describe the bug

We are deploying MSK Connectors via AWS CDK Typescript library. Everything was working perfectly until 2 days ago. Suddenly, we started getting the following error:

"responseElements": { "Access-Control-Expose-Headers": "x-amzn-errortype,x-amzn-requestid,x-amzn-errormessage,x-amzn-trace-id,x-amz-apigw-id,date", "message": "Invalid parameter autoScaling: The specified parameter value is identical to the current value for the connector. Specify a different value, then try again." },

We were not changing anything related to autoScaling configuration, we were only updating some other properties, like: debezium table list.

Expected Behavior

cdk deploy is successful with updated MSK Connectors.

Current Behavior

cdk deploy fails due to mentioned error

Reproduction Steps

private createKafkaConnector(
        vpc: ec2.IVpc,
        config: Config,
        key: string,
        plugin: string,
        pluginRevision: number,
        roleArn: string,
        logGroup: string,
        connectorConfig: {
            [key: string]: string
        },
        cluster: string,
        version?: string
    ) {
        return {
            connectorDescription: `MSK ${key} connector for cluster ${cluster}`,
            capacity: {
                autoScaling: {
                    mcuCount: config.mskConnectorsConfig.mcuCount,
                    minWorkerCount: config.mskConnectorsConfig.workerCount,
                    maxWorkerCount: config.mskConnectorsConfig.workerCount + 1,
                    scaleInPolicy: {
                        cpuUtilizationPercentage: 20
                    },
                    scaleOutPolicy: {
                        cpuUtilizationPercentage: 80
                    }
                }
            },
            connectorConfiguration: connectorConfig,
            connectorName: `fdp-etb-${key}-connector-${version ? version : config.mskConnectorsConfig.connectorVersion}`,
            kafkaCluster: {
                apacheKafkaCluster: {
                    bootstrapServers: config.mskConnectorsConfig.kafkaBrokers,
                    vpc: {
                        securityGroups: config.mskConnectorsConfig.securityGroups,
                        subnets: vpc.privateSubnets.map(subnet => subnet.subnetId),
                    },
                },
            },
            kafkaClusterClientAuthentication: {
                authenticationType: 'IAM',
            },
            kafkaClusterEncryptionInTransit: {
                encryptionType: 'TLS',
            },
            kafkaConnectVersion: config.mskConnectorsConfig.kafkaConnectVersion,
            plugins: [{
                customPlugin: {
                    customPluginArn: plugin,
                    revision: pluginRevision ? pluginRevision : 1,
                },
            }],
            serviceExecutionRoleArn: roleArn,

            logDelivery: {
                workerLogDelivery: {
                    cloudWatchLogs: {
                        enabled: true,
                        // the properties below are optional
                        logGroup: logGroup,
                    },
                },
            },
        }
    }

Possible Solution

No response

Additional Information/Context

No response

CDK CLI Version

2.110.0

Framework Version

v18.13.0

Node.js Version

v18.13.0

OS

Windows/Linux/MacOS

Language

TypeScript

Language Version

No response

Other information

Update works fine if we toggle autoScaling config, but this should not be required to update other properties.

[pahud]

Are you able to provide a full minimal reproducible code snippet we can deploy in our account? Looks like the provided code is just a private method and we will need a full deployable code before we can diagnose. Thank you.

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