以前部署到 Heroku 时可以工作的 KeystoneJS V4 应用程序现在停止工作 - MongoDB Atlas

【问题标题】：KeystoneJS V4 app that used to work when deploying to Heroku is now stopped working - MongoDB Atlas以前部署到 Heroku 时可以工作的 KeystoneJS V4 应用程序现在停止工作 - MongoDB Atlas
【发布时间】：2021-09-07 06:48:37
【问题描述】：

由于堆栈更改，Heroku 删除了几个月前与 MongoDB Atlas 完美连接的 KeystoneJS V4 应用程序。现在我正在尝试使用正确的配置部署相同的应用程序，但出现部署错误。这是我得到的错误：

2021-06-23T17:14:40.418968+00:00 heroku[web.1]: State changed from crashed to starting
2021-06-23T17:14:43.000000+00:00 app[api]: Build succeeded
2021-06-23T17:14:46.464645+00:00 heroku[web.1]: Starting process with command `node keystone.js`
2021-06-23T17:14:49.588440+00:00 app[web.1]: Warning: connect.session() MemoryStore is not
2021-06-23T17:14:49.588949+00:00 app[web.1]: designed for a production environment, as it will leak
2021-06-23T17:14:49.588950+00:00 app[web.1]: memory, and will not scale past a single process.
2021-06-23T17:14:49.711527+00:00 app[web.1]: ------------------------------------------------
2021-06-23T17:14:49.711682+00:00 app[web.1]: Mongoose connection "error" event fired with:
2021-06-23T17:14:49.712891+00:00 app[web.1]: Error [MongoError]: failed to connect to server [cluster-1z703hln.tt6wq.mongodb.net:27017] on first connect
2021-06-23T17:14:49.712894+00:00 app[web.1]:     at Pool.<anonymous> (/app/node_modules/mongodb-core/lib/topologies/server.js:326:35)
2021-06-23T17:14:49.712894+00:00 app[web.1]:     at Pool.emit (events.js:314:20)
2021-06-23T17:14:49.712894+00:00 app[web.1]:     at Connection.<anonymous> (/app/node_modules/mongodb-core/lib/connection/pool.js:272:12)
2021-06-23T17:14:49.712895+00:00 app[web.1]:     at Object.onceWrapper (events.js:421:26)
2021-06-23T17:14:49.712895+00:00 app[web.1]:     at Connection.emit (events.js:314:20)
2021-06-23T17:14:49.712896+00:00 app[web.1]:     at Socket.<anonymous> (/app/node_modules/mongodb-core/lib/connection/connection.js:175:49)
2021-06-23T17:14:49.712896+00:00 app[web.1]:     at Object.onceWrapper (events.js:421:26)
2021-06-23T17:14:49.712897+00:00 app[web.1]:     at Socket.emit (events.js:314:20)
2021-06-23T17:14:49.712897+00:00 app[web.1]:     at emitErrorNT (internal/streams/destroy.js:92:8)
2021-06-23T17:14:49.712897+00:00 app[web.1]:     at emitErrorAndCloseNT (internal/streams/destroy.js:60:3)
2021-06-23T17:14:49.712899+00:00 app[web.1]:     at processTicksAndRejections (internal/process/task_queues.js:84:21)
2021-06-23T17:14:49.713715+00:00 app[web.1]: Error: KeystoneJS (My-App) failed to start - Check that you are running `mongod` in a separate process.
2021-06-23T17:14:49.713716+00:00 app[web.1]:     at NativeConnection.<anonymous> (/app/node_modules/keystone/lib/core/openDatabaseConnection.js:59:10)
2021-06-23T17:14:49.713716+00:00 app[web.1]:     at NativeConnection.emit (events.js:314:20)
2021-06-23T17:14:49.713717+00:00 app[web.1]:     at Immediate.<anonymous> (/app/node_modules/mongoose/lib/connection.js:296:19)
2021-06-23T17:14:49.713717+00:00 app[web.1]:     at processImmediate (internal/timers.js:461:21)
2021-06-23T17:14:49.801512+00:00 heroku[web.1]: Process exited with status 1
2021-06-23T17:14:49.940361+00:00 heroku[web.1]: State changed from starting to crashed
2021-06-23T17:14:49.950336+00:00 heroku[web.1]: State changed from crashed to starting
2021-06-23T17:14:57.803099+00:00 heroku[web.1]: Starting process with command `node keystone.js`
2021-06-23T17:15:02.052669+00:00 heroku[web.1]: Process exited with status 1
2021-06-23T17:15:02.247835+00:00 heroku[web.1]: State changed from starting to crashed
2021-06-23T17:15:01.788675+00:00 app[web.1]: Warning: connect.session() MemoryStore is not
2021-06-23T17:15:01.788702+00:00 app[web.1]: designed for a production environment, as it will leak
2021-06-23T17:15:01.788703+00:00 app[web.1]: memory, and will not scale past a single process.
2021-06-23T17:15:01.971420+00:00 app[web.1]: ------------------------------------------------
2021-06-23T17:15:01.971542+00:00 app[web.1]: Mongoose connection "error" event fired with:
2021-06-23T17:15:01.975012+00:00 app[web.1]: Error [MongoError]: failed to connect to server [cluster-1z703hln.tt6wq.mongodb.net:27017] on first connect
2021-06-23T17:15:01.975013+00:00 app[web.1]:     at Pool.<anonymous> (/app/node_modules/mongodb-core/lib/topologies/server.js:326:35)
2021-06-23T17:15:01.975014+00:00 app[web.1]:     at Pool.emit (events.js:314:20)
2021-06-23T17:15:01.975014+00:00 app[web.1]:     at Connection.<anonymous> (/app/node_modules/mongodb-core/lib/connection/pool.js:272:12)
2021-06-23T17:15:01.975014+00:00 app[web.1]:     at Object.onceWrapper (events.js:421:26)
2021-06-23T17:15:01.975015+00:00 app[web.1]:     at Connection.emit (events.js:314:20)
2021-06-23T17:15:01.975015+00:00 app[web.1]:     at Socket.<anonymous> (/app/node_modules/mongodb-core/lib/connection/connection.js:175:49)
2021-06-23T17:15:01.975016+00:00 app[web.1]:     at Object.onceWrapper (events.js:421:26)
2021-06-23T17:15:01.975016+00:00 app[web.1]:     at Socket.emit (events.js:314:20)
2021-06-23T17:15:01.975016+00:00 app[web.1]:     at emitErrorNT (internal/streams/destroy.js:92:8)
2021-06-23T17:15:01.975017+00:00 app[web.1]:     at emitErrorAndCloseNT (internal/streams/destroy.js:60:3)
2021-06-23T17:15:01.975017+00:00 app[web.1]:     at processTicksAndRejections (internal/process/task_queues.js:84:21)
2021-06-23T17:15:01.975867+00:00 app[web.1]: Error: KeystoneJS (My-APP) failed to start - Check that you are running `mongod` in a separate process.
2021-06-23T17:15:01.975868+00:00 app[web.1]:     at NativeConnection.<anonymous> (/app/node_modules/keystone/lib/core/openDatabaseConnection.js:59:10)
2021-06-23T17:15:01.975868+00:00 app[web.1]:     at NativeConnection.emit (events.js:314:20)
2021-06-23T17:15:01.975868+00:00 app[web.1]:     at Immediate.<anonymous> (/app/node_modules/mongoose/lib/connection.js:296:19)
2021-06-23T17:15:01.975869+00:00 app[web.1]:     at processImmediate (internal/timers.js:461:21)

请有人帮我解决这个问题。不知道为什么我会收到这个错误。我有正确的 MONGODB_URI（在另一个应用上可以正常工作）。

【问题讨论】：

    标签： node.js mongodb heroku mongoose keystonejs


    【解决方案1】：

    该错误 (failed to connect to server) 直接来自 Mongoose，因此这是数据库连接的问题。原因可能是……

    网络

    Atlas 默认阻止所有流量；对于 Heroku 部署，您需要通过配置 access list 来打开它。在这种情况下，它应该包含类似0.0.0.0/32 的内容以允许所有 IP。 （我知道你说过可以从另一个应用程序访问数据库，但仍然值得检查。）

    授权

    URI 是否包含用户名密码？它应该是……

    mongodb+srv://<username>:<password>@cluster-1z703hln.tt6wq.mongodb.net/my-app?retryWrites=true&w=majority

    .. 或类似，不是 Atlas 为 CLI 建议的较短形式，例如。

    mongodb+srv://cluster-1z703hln.tt6wq.mongodb.net/my-app

    当您尝试从开发机器上的mongo 客户端连接时会发生什么？它可能会提供更有用的错误消息。

    【讨论】：

    • 谢谢。网络 - 是的，它已经配置为使用 0.0.0.0/0 访问数据库以允许所有 IP。 Auth - 是的，URI 格式正确，UN & PW 正确。用于访问另一个应用程序的相同。唯一的区别是，先前的错误之一建议删除 +srv。所以它以 mongodb:// 开头 - 我之前遇到过这个问题，在删除 +srv 之后，它才让连接到数据库。
    • @billgajen 你的意思是0.0.0.0/32 对吗？ 0.0.0.0/0 将阻止一切。除此之外，我没有想法。您是否尝试在您的开发机器上从 Mongo 客户端（如 mongo cli）进行连接？
    • 嗨@molomby，最后这个答案帮助解决了这个问题：stackoverflow.com/questions/59778351/…。谢谢
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