我正在尝试使用我的节点应用程序连接 mongoldb 集群。我有 mongodb 版本 3.1.0。
我从 mongodb 复制了连接字符串，如下所示。
mongodb://username:<PASSWORD>@clusterstring,clusterstring1,clusterstring2/dbname?ssl=true&replicaSet=replicaSet&authSource=admin&retryWrites=true
但是当我尝试使用上面的字符串进行连接时，我收到了以下错误。
MongoError: seed list contains no mongos proxies, replicaset connections requires the parameter replicaSet to be supplied in the URI o r options object, mongodb://server:port/db?replicaSet=name
所以上面的消息给了我两个错误
- 种子列表不包含 mongos 代理——不知道为什么会发生
- 要在 URI 或选项对象中提供的副本集——我的 URI 中有副本集。不知道为什么会这样。
如果我设置 ssl=false，第二条消息会消失，而第一条消息会保留。
知道我做错了什么吗？
如果您想知道我在应用程序中的连接方式，
this is in config
module.exports = {
secret: 'sectreKey',
session: { session: false },
database: aboveconnectionstring
}
//the above values are passed here
module.exports = (mongoose, config) => {
const database = mongoose.connection;
mongoose.Promise = Promise;
mongoose.connect(config.database, {
promiseLibrary: global.Promise,
useNewUrlParser: true
});
database.on('error', error => console.log(`Connection to sample service database failed: ${error}`));
database.on('connected', () => console.log('Connected to sample Service database'));
database.on('disconnected', () => console.log('Disconnected from sample Service database'));
process.on('SIGINT', () => {
database.close(() => {
console.log('sampleVueService terminated, connection closed');
process.exit(0);
})
});
};
编辑：已解决
我从下面的堆栈溢出问题中找到了答案。Mongoose 集群与 Mongo 连接。但它不与参数 &retryWrites=true 连接。于是我把参数去掉，连接成功。
MongoError：字段“retryWrites”对于索引规范无效。规范：{ name: "username_1", key: { username: 1 }, unique: true, background: true, retryWrites: true }
所以我的新数据库连接如下所示
module.exports = (mongoose, config) => {
if(config.database.indexOf('replicaSet') > - 1) {
dbOptions = {
db: {native_parser: true},
replset: {
auto_reconnect:false,
poolSize: 10,
socketOptions: {
keepAlive: 1000,
connectTimeoutMS: 30000
}
},
server: {
poolSize: 5,
socketOptions: {
keepAlive: 1000,
connectTimeoutMS: 30000
}
}
};
}
const database = mongoose.connection;
mongoose.Promise = Promise;
mongoose.connect(config.database, dbOptions);
database.on('error', error => console.log(`Connection to sample service database failed: ${error}`));
database.on('connected', () => console.log('Connected to sample Service database'));
database.on('disconnected', () => console.log('Disconnected from sample Service database'));
process.on('SIGINT', () => {
database.close(() => {
console.log('sampleVueService terminated, connection closed');
process.exit(0);
})
});
};
希望它也对其他人有所帮助。