将 AWS Dax 客户端连接到 localstack DynamoDB？

Question

我正在尝试使用 AWS DaxClient 连接到运行 DynamoDB 的本地堆栈设置。

我从这里的 github repo 中的 docker-compose 文件开始 localstack。

然后我尝试在 Java 代码中创建一个 Dax 客户端并将其指向

public class PlainJavaClass {


    static AmazonDynamoDB daxClient;


    public static void main(String[] args) throws Exception {
        
        AmazonDaxClientBuilder daxClientBuilder = AmazonDaxClientBuilder.standard();
        daxClientBuilder.withRegion("us-east-1").withEndpointConfiguration("localhost:4566");
        daxClient = daxClientBuilder.build();

    }
}

但是我收到以下异常：

12:36:53.713 [main] WARN com.amazon.dax.client.dynamodbv2.ClusterDaxClient - exception starting up cluster client: java.io.IOException: failed to configure cluster endpoints from hosts: [localhost:4566]
java.io.IOException: failed to configure cluster endpoints from hosts: [localhost:4566]
    at com.amazon.dax.client.cluster.Source$AutoconfSource.pull(Source.java:127)
    at com.amazon.dax.client.cluster.Source$AutoconfSource.update(Source.java:59)
    at com.amazon.dax.client.cluster.Source$AutoconfSource.refresh(Source.java:50)
    at com.amazon.dax.client.cluster.Cluster.refresh(Cluster.java:426)
    at com.amazon.dax.client.cluster.Cluster.refresh(Cluster.java:409)
    at com.amazon.dax.client.cluster.Cluster.startup(Cluster.java:330)
    at com.amazon.dax.client.cluster.Cluster.startup(Cluster.java:263)
    at com.amazon.dax.client.dynamodbv2.ClusterDaxClient.<init>(ClusterDaxClient.java:148)
    at com.amazon.dax.client.dynamodbv2.ClusterDaxClient.<init>(ClusterDaxClient.java:119)
    at com.amazon.dax.client.dynamodbv2.AmazonDaxClientBuilder.build(AmazonDaxClientBuilder.java:34)
    at com.example.crudspringbootdynamodb.PlainJavaClass.createDaxClient(PlainJavaClass.java:30)
    at com.example.crudspringbootdynamodb.PlainJavaClass.main(PlainJavaClass.java:50)
Caused by: com.amazon.cbor.EndOfStreamException: null
    at com.amazon.cbor.CborInputStream.readObject(CborInputStream.java:1340)
    at com.amazon.dax.client.exceptions.DaxServiceException.pickException(DaxServiceException.java:44)
    at com.amazon.dax.client.generated.DaxClientStubs.handleResponse(DaxClientStubs.java:963)
    at com.amazon.dax.client.generated.DaxClientStubs.endpoints_455855874_1(DaxClientStubs.java:479)
    at com.amazon.dax.client.dynamodbv2.DaxClient.endpoints(DaxClient.java:2375)
    at com.amazon.dax.client.cluster.Source$AutoconfSource.pullFrom(Source.java:137)
    at com.amazon.dax.client.cluster.Source$AutoconfSource.pull(Source.java:105)
    ... 11 common frames omitted
    Suppressed: com.amazon.cbor.EndOfStreamException: null
        ... 18 common frames omitted

我知道我可以使用这样创建的普通 DynamoDb 客户端连接到 localstack：

AmazonDynamoDBClientBuilder
                .standard()
                .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration("http://localhost:4566/", "us-east-1"))
                .build();

所以不太确定下一步 go 在哪里。 是否可以使用 DAX 客户端连接到 DynamoDB localstack？

Answer 1

不，localstack 还不支持它。 github ( https://github.com/localstack/localstack/issues/3707 ) 上有一个未解决的问题。