无法连接到本地 DynamoDB

Question

I cannot connect to DynamoDB that is running local using cli.

aws dynamodb list-tables --endpoint-url http://localhost:8000

Could not connect to the endpoint URL: "http://localhost:8000/"

This doesn't work either: aws dynamodb list-tables --region local Could not connect to the endpoint URL: "http://localhost:8000/"

I tried using a different port and that didn't help. I disabled all proxies too. I am able to connect to DynamoDB using an application like this so I know it's not a dynamodb issue: aws dynamodb list-tables --endpoint-url http://dynamodb.us-west-2.amazonaws.com --region us-west-2

{ "TableNames": [ "Music" ] }

Answer 1

When you run

java -Djava.library.path=./DynamoDBLocal_lib -jar DynamoDBLocal.jar -sharedDb

command from your terminal make sure output will be like below and no service will be running on port 8000:

Initializing DynamoDB Local with the following configuration:
Port:   8000
InMemory:       false
DbPath: null
SharedDb:       true
shouldDelayTransientStatuses:   false
CorsParams:     *

It means, this service running successfully on port 8000.

DynamoDB requires any/fake credentials to work.

AWS Access Key ID: "fakeMyKeyId"
AWS Secret Access Key: "fakeSecretAccessKey"

then try below command to list tables.

aws dynamodb list-tables --endpoint-url http://localhost:8000

Answer 2

The error in your logs is the key here Caused by: java.lang.UnsatisfiedLinkError: no sqlite4java-osx-x86_64 in java.library.path: [.]

This means that the specific dependency cannot be located.

The link that Saranjeet provided has a few solutions. I prefer this solution for testing:

First, you need to download the zip file from offcial website. Unzip the file, copy all the *.dll, *.dylib, *.so to a folder under your project root. Say, src/test/resources/libs.
Then, add the code

System.setProperty("sqlite4java.library.path", "src/test/resources/libs/");
before you initialize a local instance of AmazonDynamoDB.