我想在我的Rails应用程序中使用MongoDB。
错误并不少见，但没有一条建议对我有用。
我已经使用自制软件安装了mongodb，然后按照相同步骤进行操作
brew更新
brew install mongodb
sudo mkdir -p / data / db
sudo chmod 777 / data / db
brew tap homebrew / services
我使用brew services start mongodb启动我的mongodb服务器并获得以下响应
2018-02-08T12:27:59.072+0530 I CONTROL [initandlisten] MongoDB starting : pid=39164 port=27017 dbpath=/data/db 64-bit host=C168s-iMac.local
2018-02-08T12:27:59.072+0530 I CONTROL [initandlisten] db version v3.6.2
2018-02-08T12:27:59.072+0530 I CONTROL [initandlisten] git version: 489d177dbd0f0420a8ca04d39fd78d0a2c539420
2018-02-08T12:27:59.072+0530 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.2n 7 Dec 2017
2018-02-08T12:27:59.072+0530 I CONTROL [initandlisten] allocator: system
2018-02-08T12:27:59.072+0530 I CONTROL [initandlisten] modules: none
2018-02-08T12:27:59.072+0530 I CONTROL [initandlisten] build environment:
2018-02-08T12:27:59.072+0530 I CONTROL [initandlisten] distarch: x86_64
2018-02-08T12:27:59.072+0530 I CONTROL [initandlisten] target_arch: x86_64
2018-02-08T12:27:59.072+0530 I CONTROL [initandlisten] options: {}
2018-02-08T12:27:59.089+0530 I - [initandlisten] Detected data files in /data/db created by the 'wiredTiger' storage engine, so setting the active storage engine to 'wiredTiger'.
2018-02-08T12:27:59.089+0530 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=3584M,session_max=20000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),statistics_log=(wait=0),verbose=(recovery_progress),
2018-02-08T12:28:01.222+0530 I STORAGE [initandlisten] WiredTiger message [1518073081:222686][39164:0x7fffa9db0340], txn-recover: Main recovery loop: starting at 2/18944
2018-02-08T12:28:01.330+0530 I STORAGE [initandlisten] WiredTiger message [1518073081:330012][39164:0x7fffa9db0340], txn-recover: Recovering log 2 through 3
2018-02-08T12:28:01.442+0530 I STORAGE [initandlisten] WiredTiger message [1518073081:442109][39164:0x7fffa9db0340], txn-recover: Recovering log 3 through 3
2018-02-08T12:28:02.563+0530 I CONTROL [initandlisten]
2018-02-08T12:28:02.563+0530 I CONTROL [initandlisten] ** WARNING: Access control is not enabled for the database.
2018-02-08T12:28:02.563+0530 I CONTROL [initandlisten] ** Read and write access to data and configuration is unrestricted.
2018-02-08T12:28:02.563+0530 I CONTROL [initandlisten]
2018-02-08T12:28:02.563+0530 I CONTROL [initandlisten] ** WARNING: This server is bound to localhost.
2018-02-08T12:28:02.563+0530 I CONTROL [initandlisten] ** Remote systems will be unable to connect to this server.
2018-02-08T12:28:02.563+0530 I CONTROL [initandlisten] ** Start the server with --bind_ip <address> to specify which IP
2018-02-08T12:28:02.563+0530 I CONTROL [initandlisten] ** addresses it should serve responses from, or with --bind_ip_all to
2018-02-08T12:28:02.563+0530 I CONTROL [initandlisten] ** bind to all interfaces. If this behavior is desired, start the
2018-02-08T12:28:02.563+0530 I CONTROL [initandlisten] ** server with --bind_ip 127.0.0.1 to disable this warning.
2018-02-08T12:28:02.563+0530 I CONTROL [initandlisten]
2018-02-08T12:28:02.563+0530 I CONTROL [initandlisten]
2018-02-08T12:28:02.563+0530 I CONTROL [initandlisten] ** WARNING: soft rlimits too low. Number of files is 256, should be at least 1000
2018-02-08T12:28:02.572+0530 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory '/data/db/diagnostic.data'
2018-02-08T12:28:02.572+0530 I NETWORK [initandlisten] waiting for connections on port 27017
2018-02-08T12:28:09.302+0530 I NETWORK [listener] connection accepted from 127.0.0.1:51073 #1 (1 connection now open)
2018-02-08T12:28:09.302+0530 I NETWORK [conn1] received client metadata from 127.0.0.1:51073 conn: { application: { name: "MongoDB Shell" }, driver: { name: "MongoDB Internal Client", version: "3.6.2" }, os: { type: "Darwin", name: "Mac OS X", architecture: "x86_64", version: "17.2.0" } }
除此之外，我也开始使用mongo
cd / usr / local / bin 的mongod
按预期开始。
我在没有ActiveRecord的情况下创建了我的rails应用，并使用了mongiod gem。接下来，我使用rails g mongoid:config创建了配置文件，并在Mongoid.load! './config/mongoid.yml'文件中添加了application.rb，以便加载配置文件。
mongoid.yml的内容是
development:
clients:
default:
database: mongo_db_demo_development
hosts:
- localhost:27017
test:
clients:
default:
database: mongo_db_demo_test
hosts:
- localhost:27017
options:
read:
mode: :primary
max_pool_size: 1
我为Person创建了我的脚手架，并使用include Mongoid::Document按预期创建了模型。我继续使用人的索引作为root_path。
当我运行rails服务器时，我收到以下错误
ActionView :: Template :: Error（没有服务器匹配首选项：＃using server_selection_timeout = 30 and local_threshold = 0.015）：
我知道它是rails的一个例外，但现在似乎无法解决它几个小时。
我提到this教程开始。奇怪的是，我成功地设置了应用程序访问它，第二天它没有任何更改就崩溃了。我可以访问图书的新页面/books/new，但似乎无法保存，因此很明显应用程序无法访问数据库。
我已经卸载mongodb两次想知道安装是否有问题，但似乎无法弄清楚什么是错误的。
我知道有许多类似的问题，但没有解决我的问题。我不明白我错过了什么，出错了。任何帮助表示赞赏。
由于
更新
我在某种程度上能够运行另一个有活动记录和mongodb的项目。 Here是一样的。我成功地将数据保存到post模型，证明mongod和mongo正在运行并且设置正确完成。这意味着我在我的应用程序配置中遗漏了一些东西但是，我不知道。