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【已解决】Mac中运行自动处理工具报错:pymongo.errors.ServerSelectionTimeoutError localhost 27017 Errno 61 Connection refused

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折腾:
【未解决】测试万妖绘卷相关安卓游戏20210122
期间,重启Mac后运行报错:
raceback (most recent call last):
  File "crawlerStart.py", line 200, in <module>
    scheduler.checkAuthority()
  File "/Users/xxx/dev/xxx/crawler/appAutoCrawler/AppCrawler/src/common/DevicesMethods.py", line 4875, in checkAuthority
    result = MongoDBDAO.find_one("forecast","authority",{"num": serialNumber})
  File "/Users/xxx/dev/xxx/crawler/appAutoCrawler/AppCrawler/utils/mongo_dao.py", line 35, in find_one
    return DB.find_one(query, *args, **kwargs)
  File "/Users/xxx/dev/xxx/crawler/appAutoCrawler/AppCrawler/venv/lib/python3.8/site-packages/pymongo/collection.py", line 1273, in find_one
    for result in cursor.limit(-1):
  File "/Users/xxx/dev/xxx/crawler/appAutoCrawler/AppCrawler/venv/lib/python3.8/site-packages/pymongo/cursor.py", line 1156, in next
    if len(self.__data) or self._refresh():
  File "/Users/xxx/dev/xxx/crawler/appAutoCrawler/AppCrawler/venv/lib/python3.8/site-packages/pymongo/cursor.py", line 1050, in _refresh
    self.__session = self.__collection.database.client._ensure_session()
  File "/Users/xxx/dev/xxx/crawler/appAutoCrawler/AppCrawler/venv/lib/python3.8/site-packages/pymongo/mongo_client.py", line 1810, in _ensure_session
    return self.__start_session(True, causal_consistency=False)
  File "/Users/xxx/dev/xxx/crawler/appAutoCrawler/AppCrawler/venv/lib/python3.8/site-packages/pymongo/mongo_client.py", line 1763, in __start_session
    server_session = self._get_server_session()
  File "/Users/xxx/dev/xxx/crawler/appAutoCrawler/AppCrawler/venv/lib/python3.8/site-packages/pymongo/mongo_client.py", line 1796, in _get_server_session
    return self._topology.get_server_session()
  File "/Users/xxx/dev/xxx/crawler/appAutoCrawler/AppCrawler/venv/lib/python3.8/site-packages/pymongo/topology.py", line 482, in get_server_session
    self._select_servers_loop(
  File "/Users/xxx/dev/xxx/crawler/appAutoCrawler/AppCrawler/venv/lib/python3.8/site-packages/pymongo/topology.py", line 208, in _select_servers_loop
    raise ServerSelectionTimeoutError(
pymongo.errors.ServerSelectionTimeoutError: localhost:27017: [Errno 61] Connection refused
感觉是此处MongoDB后天没有 运行?
但是要去搞清楚,如何启动MongoDB服务。
如何确保Mac启动时,自动启动MongoDB服务。
参考之前的:
【已解决】给Win中VMWare中macOS安装MongoDB和恢复MongoDB数据
去试试:
brew services enable mongodb-community
brew services start mongodb-community
不过先去看看 是不是更新了MongoDB的版本了
 ~  brew info mongodb-community
mongodb/brew/mongodb-community: stable 4.4.3
High-performance, schema-free, document-oriented database
https://www.mongodb.com/
/usr/local/Cellar/mongodb-community/4.4.3 (11 files, 156.8MB) *
  Built from source on 2021-01-18 at 16:35:41
From: https://github.com/mongodb/homebrew-brew/blob/HEAD/Formula/mongodb-community.rb
==> Dependencies
Recommended: mongodb-database-tools ✔
==> Options
--without-mongodb-database-tools
    Build without mongodb-database-tools support
==> Caveats
To have launchd start mongodb/brew/mongodb-community now and restart at login:
  brew services start mongodb/brew/mongodb-community
Or, if you don't want/need a background service you can just run:
  mongod --config /usr/local/etc/mongod.conf
结果:
~  brew services enable mongodb-community
Usage: brew services [subcommand]


Manage background services with macOS' launchctl(1) daemon manager.


If sudo is passed, operate on /Library/LaunchDaemons (started at boot).
Otherwise, operate on ~/Library/LaunchAgents (started at login).


[sudo] brew services [list]:
    List all managed services for the current user (or root).


[sudo] brew services run (formula|--all):
    Run the service formula without registering to launch at login (or boot).


[sudo] brew services start (formula|--all):
    Start the service formula immediately and register it to launch at login
(or boot).


[sudo] brew services stop (formula|--all):
    Stop the service formula immediately and unregister it from launching at
login (or boot).


[sudo] brew services restart (formula|--all):
    Stop (if necessary) and start the service formula immediately and register
it to launch at login (or boot).


[sudo] brew services cleanup:
    Remove all unused services.


      --all                        Run subcommand on all services.
  -d, --debug                      Display any debugging information.
  -q, --quiet                      Make some output more quiet.
  -v, --verbose                    Make some output more verbose.
  -h, --help                       Show this message.


Error: Invalid usage: unknown subcommand: enable
没有enable。
mac mongodb-community enable
mac mongodb-community start after boot
Installing MongoDB on Mac (Catalina and non-Catalina) | Zell Liew
说是:
brew services start mongodb-community
中start是:自动开机运行?
而run:
brew services run mongodb-community
只是单次运行?
去start看看
突然注意到:
[sudo] brew services start (formula|--all):
    Start the service formula immediately and register it to launch at login
(or boot).
意思是就是:启动,并且注册服务到开机启动。是我们希望的。
去启动:
~  brew services start mongodb-community
Service `mongodb-community` already started, use `brew services restart mongodb-community` to restart.
竟然说是已经启动过了。
那代码中为何不对。
重启试试:
 brew services restart mongodb-community
Stopping `mongodb-community`... (might take a while)
==> Successfully stopped `mongodb-community` (label: homebrew.mxcl.mongodb-community)
==> Successfully started `mongodb-community` (label: homebrew.mxcl.mongodb-community)
再去运行代码,结果:好像卡死了??
问题依旧。
https://docs.mongodb.com/manual/tutorial/install-mongodb-on-os-x
node.js – Installing and Running MongoDB on OSX – Stack Overflow
macos – Start / Stop MongoDB with Homebrew – Stack Overflow
macos – How to start a mongodb service on mac OS X? – Stack Overflow
mac pymongo.errors.ServerSelectionTimeoutError localhost 27017 Errno 61 Connection refused
macos – Cannot connect to mongodb errno:61 Connection refused – Stack Overflow
brew services start mongodb
的确没有:
 ~  brew services start mongodb
Error: No available formula with the name "mongodb".
去看看当前mongodb状态:
~  brew services
Name              Status  User  Plist
mongodb-community error   xxx /Users/xxx/Library/LaunchAgents/homebrew.mxcl.mongodb-community.plist
发现是error
python – Pymongo keeps refusing the connection at 27017 – Stack Overflow
mongodb – mongo errno:61 Connection refused on OSX Yosemite – Stack Overflow
mongodb – pymongo.errors.ConnectionFailure: [Errno 61] Connection refused – Stack Overflow
macos – Cannot connect to MongoDB errno:61 – Stack Overflow
Pymongo.errors.serverselectiontimeouterror: localhost:27017: [errno 61] connection refused – Kodlogs
mac mongodb-community status error
homebrew – brew services start mongodb-community@4.2 Error: Unknown command: services – Stack Overflow
database – Problem using and running brew services start mongodb-community@4.2 – Stack Overflow
去看看mongodb的log
homebrew – brew mongodb-community: can’t connect to localhost database – Stack Overflow
homebrew – brew services start mongodb-community@4.0 fails – uninitialized constant – Stack Overflow
mongod --config /usr/local/etc/mongod.conf
找到:
配置文件:
/usr/local/etc/mongod.conf
去看看
~  cat /usr/local/etc/mongod.conf
systemLog:
  destination: file
  path: /usr/local/var/log/mongodb/mongo.log
  logAppend: true
storage:
  dbPath: /usr/local/var/mongodb
net:
  bindIp: 127.0.0.1
去看看db的path:
~  ll /usr/local/var/mongodb
total 1175952
-rwxr-xr-x   1 xxx  CORP\Domain Users    45B  6 18  2019 WiredTiger
-rwxr-xr-x   1 xxx  CORP\Domain Users    21B  6 24  2019 WiredTiger.lock
-rw-------   1 xxx  admin               1.2K  1 22 11:32 WiredTiger.turtle
-rwxr-xr-x   1 xxx  CORP\Domain Users   276K  1 22 11:32 WiredTiger.wt
-rw-------   1 xxx  admin               4.0K  1 22 11:32 WiredTigerLAS.wt
-rwxr-xr-x   1 xxx  CORP\Domain Users    44K  1 22 11:32 _mdb_catalog.wt
-rw-------   1 xxx  admin                36K  6  3  2020 collection-0--1086966650214792146.wt
。。。
是有数据的。
然后去解决:
【已解决】Mac中MongoDB报错:initandlisten Failed to start up WiredTiger under any compatibility version This may be due to an unsupported upgrade or downgrade
此处是:
brew uninstall mongodb-community
brew install mongodb-community@4.2
brew services start mongodb-community@4.2
至少是启动了mongodb。
去试试代码能否运行。
可以了。
【总结】
此处,之前brew不知道何时update或upgrade,导致了
之前的 4.2.1版的 mongodb-community@4.2 被升级到最新的 4.4.3的mongodb-community
导致后续无法正常启动mongodb服务了。
解决办法:
卸载(目前新的,不能用的):
brew uninstall mongodb-community
重新安装旧的:
brew install mongodb-community@4.2
启动服务:
单次启动是:
brew services run mongodb-community@4.2
启动,并设置为开机启动:
brew services start mongodb-community@4.2
即可。
相关帖子回复:
macos – MongoDB-Community not starting on Mac and giving errors – Stack Overflow
mongodb – Upgrading older mongo database after unintentional mongo version upgrade – Stack Overflow
docker – MongoDB keeps crashing due to WiredTiger related error – Stack Overflow

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