我正在尝试使用 async mongoClient 连接到 aws DocumentDB。
我在 aws 中创建了一个 DocumentDB 集群,并通过 ssh 命令行成功连接。
我过去了here并创建了 MongoClient 并成功连接并插入事件。
但是当我尝试创建 com.mongodb.async.client.MongoClient 时,连接失败并出现以下错误:
No server chosen by WritableServerSelector from cluster description ClusterDescription{type=REPLICA_SET, connectionMode=MULTIPLE, serverDescriptions=[ServerDescription{address=aws-cluster:27017, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketReadTimeoutException: Timeout while receiving message}, caused by {io.netty.handler.timeout.ReadTimeoutException}}]}. Waiting for 30000 ms before timing out.
ClusterSettings clusterSettings = ClusterSettings.builder()
.applyConnectionString(new ConnectionString(connectionString)).build();
List<MongoCredential> credentials = new ArrayList<>();
credentials.add(
MongoCredential.createCredential(
mongoUserName,
mongoDBName,
mongoPassword));
MongoClientSettings settings = MongoClientSettings.builder()
.credentialList(credentials)
.clusterSettings(clusterSettings)
.streamFactoryFactory(new NettyStreamFactoryFactory())
.writeConcern(WriteConcern.ACKNOWLEDGED)
.build();
com.mongodb.async.client.MongoClient mongoClient = MongoClients.create(settings);
MongoDatabase testDB = mongoClient.getDatabase("myDB");
MongoCollection<Document> collection = testDB.getCollection("test");
Document doc = new Document("name", "MongoDB").append("type", "database");
//**trying insert document => here I got an error**
collection.insertOne(doc, new SingleResultCallback<Void>() {
@Override
public void onResult(final Void result, final Throwable t) {
System.out.println("Inserted!");
}
});
你有什么想法,为什么会这样?
最佳答案
我用uri解决了这个问题:
String uri = "mongodb://<username>:<Password>@<hostname>:27017/?ssl=true&ssl_ca_certs=cert";
MongoClientSettings settings = MongoClientSettings.builder()
.streamFactoryFactory(new NettyStreamFactoryFactory())
.applyConnectionString(new ConnectionString(uri))
.build();
com.mongodb.async.client.MongoClient mongoClient = MongoClients.create(settings);
关于spring - com.mongodb.async.client.ClientSessionHelpe 没有从集群描述 ClusterDescription 选择服务器,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/59443432/