mongo - 无法连接到服务器127.0.0.1:27017

Question

我来自riak和redis,我从未遇到过这项服务的问题,或者进行互动.

这是mongo普遍存在的问题,而且相当无能为力.重启没有帮助.我是mongo的新手.

mongo
MongoDB shell version: 2.2.1
connecting to: test
Fri Nov  9 16:44:06 Error: couldn't connect to server 127.0.0.1:27017 src/mongo/shell/mongo.js:91
exception: connect failed

这就是我在日志中看到的.

 now open)
Fri Nov  9 16:44:34 [conn47] end connection 10.29.16.208:5306 (1 connection now open)
Fri Nov  9 16:45:04 [initandlisten] connection accepted from 10.29.16.208:5307 #48 (2 connections now open)
Fri Nov  9 16:45:04 [conn48] end connection 10.29.16.208:5307 (1 connection now open)
Fri Nov  9 16:45:04 [initandlisten] connection accepted from 10.29.16.208:5308 #49 (2 connections now open)
Fri Nov  9 16:45:04 [conn49] end connection 10.29.16.208:5308 (1 connection now open)
Fri Nov  9 16:45:34 [initandlisten] connection accepted from 10.29.16.208:5316 #50 (2 connections now open)
Fri Nov  9 16:45:34 [conn50] end connection 10.29.16.208:5316 (1 connection now open)
Fri Nov  9 16:45:34 [initandlisten] connection accepted from 10.29.16.208:5317 #51 (2 connections now open)
Fri Nov  9 16:45:34 [conn51] end connection 10.29.16.208:5317 (1 connection now open)
Fri Nov  9 16:46:04 [initandlisten] connection accepted from 10.29.16.208:5320 #52 (2 connections now open)
Fri Nov  9 16:46:04 [conn52] end connection 10.29.16.208:5320 (1 connection now open)
Fri Nov  9 16:46:04 [initandlisten] connection accepted from 10.29.16.208:5321 #53 (2 connections now open)
Fri Nov  9 16:46:04 [conn53] end connection 10.29.16.208:5321 (1 conn

Answer 1

通常这是因为你在尝试启动mongo shell之前没有启动mongod进程.

启动mongod服务器

mongod

打开另一个终端窗口

启动mongo shell

mongo

Answer 2

解决.

这个问题可以通过下面提到的4个步骤来解决

1)删除.lock文件

sudo rm /var/lib/mongodb/mongod.lock 

2)修复mongodb

mongod –repair

3)启动mongod服务器

sudo service mongod start 

4)启动mongo客户端

mongo

有关详细信息,请查看http://shakthydoss.com/error-couldnt-connect-to-server-127-0-0-127017-srcmongoshellmongo-js-exception-connect-failed/

http://shakthydoss.com/technical/error-couldnt-connect-to-server-127-0-0-127017-srcmongoshellmongo-js-exception-connect-failed/

Answer 3

如果mongo shell无法与mongod服务器通信,您将看到此错误.

这可能是因为地址错误(主机或IP)或者它没有运行.有一点需要注意的是,提供的日志跟踪不包括您的"星期五9月16日16:44:06" mongo timestamp.

你能:

1. 提供用于启动mongod进程的命令行参数(如果有)
2. 在mongo shell启动尝试期间提供mongod启动时的日志文件活动以及日志？
3. 确认您的mongod进程是在与mongo shell相同的机器上启动的吗？

Answer 4

仅当您要修复数据文件而不保留原始文件时,此方法才有效

要找到dbpath驻留的位置--vim /etc/mongodb.conf

检查选项dbpath =

(我有dbpath =/var/lib/mongodb)

默认值:/data/db /

典型位置包括:/ srv/mongodb,/ var/lib/mongodb或/ opt/mongodb.

更换的/ var/lib中/ MongoDB的与您的DBPATH

sudo rm /var/lib/mongodb/mongod.lock
sudo mongod --dbpath /var/lib/mongodb/ --repair
sudo mongod --dbpath /var/lib/mongodb/ --journal

(确保你让终端在你的线路上运行,不要按'Ctrl + c'或退出它.)在另一个窗口中输入命令启动mongo.

希望这对你有用!对于那些想要修复您的数据文件同时保留原始文件 mongo恢复

Answer 5

苹果系统

检查状态

brew services list

就像是：

Name    Status  User Plist
mongodb stopped  

启动它

brew services start mongodb

再试一遍

mongo 要么 mongo --port 27017

Answer 6

Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException: Error connecting to 127.0.0.1:27017 :: caused by :: No connection could be made because the target machine actively refused it.

这个错误是因为 Mongo Server 被关闭了

简单按照以下步骤

1. 打开任务管理器
2. 前往 >服务
3. 查找MongoDB
4. 右键单击并选择开始

Answer 7

就我而言:

首先,我打开配置文件

sudo vi /etc/mongodb.conf

像这样评论IP和端口

#bind_ip = 127.0.0.1
#port = 27017

然后重启mongodb

sudo service mongodb restart
sudo service mongod restart

最后,它的工作:D

finn@Finn ~ $ mongo
MongoDB shell version: 2.4.9
connecting to: test
> exit

Answer 8

确保您的mongo正在运行.我通过尝试修复mongodb来解决这个问题,在那里我发现没有创建db运行所需的目录.它显示了这个错误

键入:mongod,它将显示错误

exception in initAndListen: 29 Data directory /data/db not found., terminating

发生错误,因为dbpath /data/db/(默认配置)不存在.您需要创建数据文件夹并为其设置权限.

然后我通过命令在我的系统上创建一个文件夹

sudo mkdir -p/data/db / 和 sudo chown id -u/ data/db

然后我再次运行mongo并且它有效.

Answer 9

有点迟到的答案,但我遇到了同样的问题

以下是帮助我的步骤.

1. 转到C:\
2. 创建"数据"文件夹
3. 在"数据"中创建"db"文件夹
4. 开放式终端(CMD) - >转到EX:" c:\MongoDB\Server\3.4\bin"
5. 输入mongod =>这将启动mongo服务器(保持打开状态)

运行GUI,EX"robomongo"

要么

打开新终端(CMD) - >转到EX:" c:\MongoDB\Server\3.4\bin"输入"mongo"命令

Answer 10

经过大量搜索后，我遇到了同样的问题，我通过以下方法解决了这个问题：

sudo service mongodb stop 

sudo rm /var/lib/mongodb/mongod.lock 

sudo mongod --repair --dbpath /var/lib/mongodb 

sudo mongod --fork --logpath /var/lib/mongodb/mongodb.log --dbpath /var/lib/mongodb 

sudo service mongodb start

Answer 11

我也有同样的问题，然后我通过这两行代码得到了解决。希望能帮助到你

systemctl start mongod
systemctl enable mongod

Answer 12

如果以上所有解决方案均不起作用：转到服务（start>search>services）并启动mongodb服务。然后，在cmd提示符下，进入bin后，键入:/>mongo

Answer 13

要与 mongo 连接，我们必须首先启动 'mongod' 服务。您可以看到以下输出：

$ mongod
2017-03-05T00:31:39.055+0530 I CONTROL  [initandlisten] MongoDB starting : pid=1481 port=27017 dbpath=/data/db 64-bit host=Prabhu-Nandans-Mac.local
2017-03-05T00:31:39.056+0530 I CONTROL  [initandlisten] db version v3.4.2
2017-03-05T00:31:39.056+0530 I CONTROL  [initandlisten] git version: 3f76e40c105fc223b3e5aac3e20dcd026b83b38b
2017-03-05T00:31:39.056+0530 I CONTROL  [initandlisten] OpenSSL version: OpenSSL 1.0.2k  26 Jan 2017
2017-03-05T00:31:39.056+0530 I CONTROL  [initandlisten] allocator: system
2017-03-05T00:31:39.056+0530 I CONTROL  [initandlisten] modules: none
2017-03-05T00:31:39.056+0530 I CONTROL  [initandlisten] build environment:
2017-03-05T00:31:39.056+0530 I CONTROL  [initandlisten]     distarch: x86_64
2017-03-05T00:31:39.056+0530 I CONTROL  [initandlisten]     target_arch: x86_64
2017-03-05T00:31:39.056+0530 I CONTROL  [initandlisten] options: {}
2017-03-05T00:31:39.056+0530 W -        [initandlisten] Detected unclean shutdown - /data/db/mongod.lock is not empty.
2017-03-05T00:31:39.057+0530 I -        [initandlisten] Detected data files in /data/db created by the 'wiredTiger' storage engine, so setting the active storage engine to 'wiredTiger'.
2017-03-05T00:31:39.057+0530 W STORAGE  [initandlisten] Recovering data from the last clean checkpoint.
2017-03-05T00:31:39.057+0530 I STORAGE  [initandlisten] wiredtiger_open config: create,cache_size=3584M,session_max=20000,eviction=(threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),
2017-03-05T00:31:39.620+0530 I CONTROL  [initandlisten] 
2017-03-05T00:31:39.620+0530 I CONTROL  [initandlisten] ** WARNING: Access control is not enabled for the database.
2017-03-05T00:31:39.620+0530 I CONTROL  [initandlisten] **          Read and write access to data and configuration is unrestricted.
2017-03-05T00:31:39.620+0530 I CONTROL  [initandlisten] 
2017-03-05T00:31:39.620+0530 I CONTROL  [initandlisten] 
2017-03-05T00:31:39.620+0530 I CONTROL  [initandlisten] ** WARNING: soft rlimits too low. Number of files is 256, should be at least 1000
2017-03-05T00:31:39.643+0530 I FTDC     [initandlisten] Initializing full-time diagnostic data capture with directory '/data/db/diagnostic.data'
2017-03-05T00:31:39.643+0530 I NETWORK  [thread1] waiting for connections on port 27017
2017-03-05T00:31:40.008+0530 I FTDC     [ftdc] Unclean full-time diagnostic data capture shutdown detected, found interim file, some metrics may have been lost. OK
2017-03-05T00:32:03.832+0530 I NETWORK  [thread1] connection accepted from 127.0.0.1:49806 #1 (1 connection now open)
2017-03-05T00:32:03.833+0530 I NETWORK  [conn1] received client metadata from 127.0.0.1:49806 conn1: { application: { name: "MongoDB Shell" }, driver: { name: "MongoDB Internal Client", version: "3.4.2" }, os: { type: "Darwin", name: "Mac OS X", architecture: "x86_64", version: "16.4.0" } }
2017-03-05T00:32:08.376+0530 I -        [conn1] end connection 127.0.0.1:49806 (1 connection now open)

之后打开另一个终端并输入“mongo”。

以下是您可以看到的输出：

$ mongo
MongoDB shell version v3.4.2
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 3.4.2

你的问题解决了:)

Answer 14

我是Windows用户，我于2018年11月安装了MongoDB，但我不想设置data / db目录。但是几天后，当我打开时，收到一条错误消息：

MongoDB shell version v4.0.4
connecting to: mongodb://127.0.0.1:27017
2018-12-05T20:42:40.108+0530 E QUERY    [js] Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException: Error connecting to 127.0.0.1:27017 :: caused by :: No connection could be made because the target machine actively refused it. :
connect@src/mongo/shell/mongo.js:257:13
@(connect):1:6
exception: connect failed

然后，我尝试使用以上所有答案进行修复，但没有成功。当我尝试运行mongod时说

MongoDB starting : pid=12220 port=27017 dbpath=C:\data\db\ 64-bit host=bla

我试图通过文件系统并使用cmd更改db路径（到程序文件），但是这些没有用。

对我有用的解决方案是：

打开任务管理器（ctrl + shift + esc）-> 服务选项卡，状态为MongoDB的行已停止。然后，我右键单击并单击开始，然后一切正常：)。