MongoDB data/db not found - node.js

I do gave this path for data/db
/usr/local/Cellar/mongodb/3.2.6/data/db
The following step was made in order to create a bound to mongodb folder
sudo mongod --directoryperdb --dbpath /usr/local/Cellar/mongodb/3.2.6/data/db --logpath /usr/local/Cellar/mongodb/3.2.6/log/mongodb.log --logappend -rest
When initialize sudo mongod in terminal the following error appears:
2016-06-08T14:45:06.970+0200 I CONTROL [initandlisten] MongoDB starting : pid=8107 port=27017 dbpath=/data/db 64-bit host=iMac-Krystyna-2.local
2016-06-08T14:45:06.970+0200 I CONTROL [initandlisten] db version v3.2.6
2016-06-08T14:45:06.970+0200 I CONTROL [initandlisten] git version: 05552b562c7a0b3143a729aaa0838e558dc49b25
2016-06-08T14:45:06.970+0200 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.2h 3 May 2016
2016-06-08T14:45:06.970+0200 I CONTROL [initandlisten] allocator: system
2016-06-08T14:45:06.970+0200 I CONTROL [initandlisten] modules: none
2016-06-08T14:45:06.970+0200 I CONTROL [initandlisten] build environment:
2016-06-08T14:45:06.970+0200 I CONTROL [initandlisten] distarch: x86_64
2016-06-08T14:45:06.970+0200 I CONTROL [initandlisten] target_arch: x86_64
2016-06-08T14:45:06.970+0200 I CONTROL [initandlisten] options: {}
2016-06-08T14:45:06.970+0200 I STORAGE [initandlisten] exception in initAndListen: 29 Data directory /data/db not found., terminating
2016-06-08T14:45:06.970+0200 I CONTROL [initandlisten] dbexit: rc: 100
Can you please explain what is wrong and maybe show some common practice in order to work correctly with MongoDB?

You need to create this directory as root
Either you need to use sudo , e.g. sudo mkdir -p /data/db
Or you need to do su - to become superuser, and then create the directory with mkdir -p /data/db

You can also give this command sudo mongod --dbpath=/var/lib/mongodb.
Open another terminal and run your mongod.

It worked for me.
try: sudo service mongod start

I had the same issue. This worked for me:
sudo mongod --dbpath ~/data/db

In my case, an incorrect conf file caused Mongo to use default settings (i.e. using /data/db as the storage path. Because /data/db doesn't exist, it complains.
Possible sources of incorrect config include:
(1) Unquoted strings. E.g. storage.dbPath should be "some/path"
(2) Incorrect bindIp. It seems an array of IPs is not supported.
So my fix was simply to use quoted strings in those places:
storage:
dbPath: "/some/path"
net:
bindIp: "127.0.0.1"
Note: My "/some/path" has permissions drwxr-xr-x (755) and is owned by mongodb/mongodb. And it works.

MongoDB try to find data/db folder under root directory of your system. try to create folder under /data/db.

Related

How to start Mongo Db after download. Command ./mongod not working

2018-10-08T15:49:48.157+0530 I CONTROL [main] Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols 'none'
2018-10-08T15:49:48.175+0530 I CONTROL [initandlisten] MongoDB starting : pid=65956 port=27017 dbpath=/data/db 64-bit host=Mayurs-MacBook-Air.local
2018-10-08T15:49:48.175+0530 I CONTROL [initandlisten] db version v4.0.2
2018-10-08T15:49:48.175+0530 I CONTROL [initandlisten] git version: fc1573ba18aee42f97a3bb13b67af7d837826b47
2018-10-08T15:49:48.175+0530 I CONTROL [initandlisten] allocator: system
2018-10-08T15:49:48.175+0530 I CONTROL [initandlisten] modules: none
2018-10-08T15:49:48.175+0530 I CONTROL [initandlisten] build environment:
2018-10-08T15:49:48.175+0530 I CONTROL [initandlisten] distarch:
x86_64
2018-10-08T15:49:48.175+0530 I CONTROL [initandlisten] target_arch: x86_64
2018-10-08T15:49:48.175+0530 I CONTROL [initandlisten] options: {}
2018-10-08T15:49:48.175+0530 I STORAGE [initandlisten] exception in initAndListen: NonExistentPath: Data directory /data/db not found., terminating
2018-10-08T15:49:48.176+0530 I CONTROL [initandlisten] now exiting
2018-10-08T15:49:48.176+0530 I CONTROL [initandlisten] shutting down with code:100
How can solve this?
In the default configuration, mongodb uses /data/db directory for storing its database files.
2018-10-08T15:49:48.175+0530 I STORAGE [initandlisten] exception in initAndListen: NonExistentPath: Data directory /data/db not found., terminating
This shows that the directory does not exist, so you have to create it.
Try:
sudo mkdir /data
sudo mkdir /data/db
sudo mkdir /data/logs
I'm not sure if the last command will be needed, but just fire it to be safe.
An alternative to this would be to find the mongo config file (I don't know where it is on macOs) and then change the /data/db path inside it to your desired location that exists.

When running Mongodb got NonExistentPath: Data directory /data/db not found., terminating

The error generated when executed sudo mongod executed
2018-09-13T20:56:08.259+0530 I CONTROL [initandlisten] MongoDB starting : pid=3419 port=27017 dbpath=/data/db 64-bit host=admin
2018-09-13T20:56:08.260+0530 I CONTROL [initandlisten] db version v3.6.7
2018-09-13T20:56:08.260+0530 I CONTROL [initandlisten] git version: 2628472127e9f1826e02c665c1d93880a204075e
2018-09-13T20:56:08.260+0530 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.1f 6 Jan 2014
2018-09-13T20:56:08.260+0530 I CONTROL [initandlisten] allocator:
tcmalloc
2018-09-13T20:56:08.260+0530 I CONTROL [initandlisten] modules: none
2018-09-13T20:56:08.260+0530 I CONTROL [initandlisten] build environment:
2018-09-13T20:56:08.260+0530 I CONTROL [initandlisten] distmod: ubuntu1404
2018-09-13T20:56:08.260+0530 I CONTROL [initandlisten] distarch: x86_64
2018-09-13T20:56:08.260+0530 I CONTROL [initandlisten] target_arch: x86_64
2018-09-13T20:56:08.260+0530 I CONTROL [initandlisten] options: {}
2018-09-13T20:56:08.312+0530 I STORAGE [initandlisten] exception in initAndListen: NonExistentPath: Data directory /data/db not found., terminating
2018-09-13T20:56:08.312+0530 I CONTROL [initandlisten] now exiting
2018-09-13T20:56:08.312+0530 I CONTROL [initandlisten] shutting down with code:100
I'm a beginner in MEAN stack application development and stuck with this error. Please help me. Thanks in advance
This solution solves my problem
Make a directory as
sudo mkdir -p /data/db
That will make a directory named as db and than try to start with commands
sudo mongod
If you get another error or problem with starting mongod, You may find problem as
Failed to set up listener: SocketException: Address already in use
If you find that another error than you have to kill the running process of mongod by typing to terminal as
ps ax | grep mongod
Find the mongod running port and kill the process.
sudo kill ps_number
Another way is to make a specefic port when starting mongod as
sudo mongod --port 27018
cd ~
mongod
All you need to do above step to prevent the error.
Don't run the mongod at different local disk location.
eg. My computer has two local disk:
1.) Local disk E: - drive : (When I run mongod on E: drive or on targeting any location on E local disk then I will get error message as)
Admin#DESKTOP-CJBHIMO MINGW64 /e/Full-Stack-Developer
$ mongod
...
{"t":{"$date":"2021-03-22T11:33:26.675+05:30"},"s":"E", "c":"STORAGE", "id":20557, "ctx":"initandlisten","msg":"DBException in initAndListen, terminating","attr":{"error":"NonExistentPath: Data directory E:\\data\\db\\ not found. Create the missing directory or specify another path using (1) the --dbpath command line option, or (2) by adding the 'storage.dbPath' option in the configuration file."}}
...
{"t":{"$date":"2021-03-22T11:33:26.677+05:30"},"s":"I", "c":"CONTROL", "id":23138, "ctx":"initandlisten","msg":"Shutting down","attr":{"exitCode":100}}
{"error":"NonExistentPath: Data directory E:\data\db\ not found.
2.) Local disk C: - drive : (When I run mongod on C: drive, which I recommend to use, cause, we mostly do the installation of mongodb on C: drive as per the instruction. If in your case, you installed on another drive, then run mongod on that drive's folder on hyper. Eg. as I run mongod on C:
Admin#DESKTOP-CJBHIMO MINGW64 ~/Desktop
$ mongod
{"t":{"$date":"2021-03-22T00:52:23.840-07:00"},"s":"I", "c":"STORAGE", "id":22270, "ctx":"initandlisten","msg":"Storage engine to use detected by data files","attr":{"dbpath":"C:/data/db/","storageEngine":"wiredTiger"}}
...
{"t":{"$date":"2021-03-22T11:34:59.300+05:30"},"s":"I", "c":"NETWORK", "id":23016, "ctx":"listener","msg":"Waiting for connections","attr":{"port":27017,"ssl":"off"}}
"msg":"Storage engine to use detected by data files","attr":{"dbpath":"C:/data/db/","storageEngine":"wiredTiger"}}
This whole example is based on windows 10. It runs successful on root directory cause it is inside C: disk. To get inside root directory :
Just run
sudo mkdir -p /data/db
On the machine running the mongoDB server
Before doing any of the other solutions see my answer here.
Maybe your conf file is being rejected due to outdated options or format changes.

MongoDB - shutting down with code:100

I've been trying to set up MongoDB on my Ubuntu 16.04.2 LTS (GNU/Linux 4.4.0-22-generic x86_64) VPS and I've been running into a few problems. I am running as a user on my server that has root access but not using the root account itself.
I started to notice the problem when I was executing db.createUser() on the admin database so I could add other users and I was getting this error:
not authorized to execute command
So I then proceeded to uninstall and install again using the tutorial as provided on the website: https://docs.mongodb.com/v3.2/tutorial/install-mongodb-on-ubuntu/
Now when I'm on stage 2 Verify that MongoDB has started successfully on the Run MongoDB Community Edition section, that is I look at my output from the file /var/log/mongodb/mongod.log, I get the following:
2017-04-14T14:23:09.309+0200 I CONTROL [main] ***** SERVER RESTARTED *****
2017-04-14T14:23:09.316+0200 I CONTROL [initandlisten] MongoDB starting : pid=9691 port=27017 dbpath=/var/lib/mongodb 64-bit host=vps338741
2017-04-14T14:23:09.316+0200 I CONTROL [initandlisten] db version v3.4.3
2017-04-14T14:23:09.316+0200 I CONTROL [initandlisten] git version: f07437fb5a6cca07c10bafa78365456eb1d6d5e1
2017-04-14T14:23:09.316+0200 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.2g 1 Mar 2016
2017-04-14T14:23:09.316+0200 I CONTROL [initandlisten] allocator: tcmalloc
2017-04-14T14:23:09.316+0200 I CONTROL [initandlisten] modules: none
2017-04-14T14:23:09.316+0200 I CONTROL [initandlisten] build environment:
2017-04-14T14:23:09.316+0200 I CONTROL [initandlisten] distmod: ubuntu1604
2017-04-14T14:23:09.316+0200 I CONTROL [initandlisten] distarch: x86_64
2017-04-14T14:23:09.316+0200 I CONTROL [initandlisten] target_arch: x86_64
2017-04-14T14:23:09.316+0200 I CONTROL [initandlisten] options: { config: "/etc/mongod.conf", net: { bindIp: "127.0.0.1", port: 27017 }, storage: { dbPath: "/var/lib/mongodb", journal: { enabled: true } }, systemLog: { destination: "file", logAppend: true, path: "/var/log/mongodb/mongod.log", quiet: true } }
2017-04-14T14:23:09.349+0200 I STORAGE [initandlisten]
2017-04-14T14:23:09.349+0200 I STORAGE [initandlisten] ** WARNING: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine
2017-04-14T14:23:09.349+0200 I STORAGE [initandlisten] ** See http://dochub.mongodb.org/core/prodnotes-filesystem
2017-04-14T14:23:09.349+0200 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=464M,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),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),
2017-04-14T14:23:09.366+0200 E STORAGE [initandlisten] WiredTiger error (2) [1492172589:366629][9691:0x7f1755946cc0], file:WiredTiger.wt, connection: /var/lib/mongodb/WiredTiger.wt: handle-open: open: No such file or directory
2017-04-14T14:23:09.367+0200 I - [initandlisten] Assertion: 28595:2: No such file or directory src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp 267
2017-04-14T14:23:09.367+0200 I STORAGE [initandlisten] exception in initAndListen: 28595 2: No such file or directory, terminating
2017-04-14T14:23:09.367+0200 I NETWORK [initandlisten] shutdown: going to close listening sockets...
2017-04-14T14:23:09.367+0200 I NETWORK [initandlisten] removing socket file: /tmp/mongodb-27017.sock
2017-04-14T14:23:09.367+0200 I NETWORK [initandlisten] shutdown: going to flush diaglog...
2017-04-14T14:23:09.367+0200 I CONTROL [initandlisten] now exiting
2017-04-14T14:23:09.367+0200 I CONTROL [initandlisten] shutting down with code:100
I've looked around and it is not the same error as found here, because that is to do with the fact there isn't an /data/db folder which I have. From that log I can see it is something to do with this line:
2017-04-14T14:23:09.366+0200 E STORAGE [initandlisten] WiredTiger error (2) [1492172589:366629][9691:0x7f1755946cc0], file:WiredTiger.wt, connection: /var/lib/mongodb/WiredTiger.wt: handle-open: open: No such file or directory
Which is true, when I go to /var/lib/mongodb and do ls -l it results with:
drwxr-xr-x 2 mongodb mongodb 4096 Apr 14 14:10 journal
-rw-r--r-- 1 mongodb mongodb 0 Apr 14 14:02 mongod.lock
-rw-r--r-- 1 mongodb mongodb 0 Apr 14 14:10 WiredTiger
-rw-r--r-- 1 mongodb mongodb 21 Apr 14 14:10 WiredTiger.lock
-rw-r--r-- 1 mongodb mongodb 1004 Apr 14 14:10 WiredTiger.turtle
But I don't know if I should manually create that file as not seen this problem elsewhere. I made sure that mongodb user has permissions on these files too as stated in the answer to this question, but still no luck.
I'm really at a loss as to what to do, any help would be very appreciated as this is my like fifth attempt at getting it working!
Thanks!
If you created the mkdir -p /data/db maybe there is a chance that you must start your server with the following command : sudo mongod
macOS/OSX : https://docs.mongodb.com/manual/tutorial/install-mongodb-on-os-x/
try :
sudo service mongod start ;
then run the mongodb with:
mongo
This is a known bug in MongoDB, check the report
Your problem is not that files are missing in general, it's that they go missing when you restart after a clean shutdown. Your problem is not related to the /data/db directory but more to WiredTiger.wt file that is missing after a restart.
Oct 1 20:00:44 alpha mongod.27017[1074]: [initandlisten] WiredTiger
(2) [1443729644:306783][1074:0x7fdba8fd4bc0], file:WiredTiger.wt,
connection: /data/db/WiredTiger.wt: No such file or directory
The bug report talks about the same thing.
Try:
I would suggest try and disable WiredTiger in the config file.
MongoDB Config Options
WiredTiger
UPDATE: To disable WiredTiger you have to change the storage.engine option in your mongo config file, by default mongod uses WiredTiger but you can also use InMemory LINK
Make a directory
sudo mkdir /data/db
Provide access to the directory
sudo chown -R $USER /data/db
Then run
mongod
If you get port already in use the stop mongod, it might be running in the background
sudo service mongod stop
If the last line is
waiting for connections on port 27017
then the mongod is working
This command helped me:
mongod --dbpath /data/db --repair
for me the 'answer' was to execute the following command (since service mongod start and just mongod failed)
sudo mongod --fork --port 27017 --replSet admin --logpath /data/log/mongo.log
I did not need to turn off wired tiger
Docker container:
In my case, I was using a docker container running
mongodb:
image: 'bitnami/mongodb:latest'
user: root
command: "chown -R $USER /bitnami/mongodb"
volumes:
- '/var/www/mongodb_data:/bitnami'
environment:
- MONGODB_USERNAME=bn_parse
- MONGODB_PASSWORD=3yfQexfqcc
- MONGODB_DATABASE=bitnami_parse
I migrated the docker host to other VPS/VM (aws is too expensive).
I added temporarily the command "chown -R $USER /bitnami/mongodb" to change the owner of that folder /bitnami/mongodb. It worked.
sudo mdkir data/db
sudo service mongod stop
sudo mongod
mongosh
this fixed it for me on ubuntu 22.04 after hours and hours of hunting down solutions

Mongodb not starting on ubuntu 14.04

I am trying to install and start mongodb locally:
I go through these steps (as shown in history):
1819 sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10
1820 echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.2 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list
1821 sudo apt-get update
1822 sudo apt-get install -y mongodb-org
1823 sudo service mongod start
But I get the following error log in /var/log/mongodb/mongodb.log
2016-01-05T22:51:21.869+0000 I CONTROL [main] ***** SERVER RESTARTED *****
2016-01-05T22:51:21.874+0000 I CONTROL [initandlisten] MongoDB starting : pid=5394 port=27017 dbpath=/var/lib/mongodb 64-bit host=ip-172-31-45-129
2016-01-05T22:51:21.874+0000 I CONTROL [initandlisten] db version v3.2.0
2016-01-05T22:51:21.874+0000 I CONTROL [initandlisten] git version: 45d947729a0315accb6d4f15a6b06be6d9c19fe7
2016-01-05T22:51:21.874+0000 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.1f 6 Jan 2014
2016-01-05T22:51:21.874+0000 I CONTROL [initandlisten] allocator: tcmalloc
2016-01-05T22:51:21.874+0000 I CONTROL [initandlisten] modules: none
2016-01-05T22:51:21.874+0000 I CONTROL [initandlisten] build environment:
2016-01-05T22:51:21.874+0000 I CONTROL [initandlisten] distmod: ubuntu1404
2016-01-05T22:51:21.874+0000 I CONTROL [initandlisten] distarch: x86_64
2016-01-05T22:51:21.874+0000 I CONTROL [initandlisten] target_arch: x86_64
2016-01-05T22:51:21.874+0000 I CONTROL [initandlisten] options: { config: "/etc/mongodb.conf", net: { bindIp: "127.0.0.1" }, storage: { dbPath: "/var/lib/mongodb", journal: { enabled: true } }, systemLog: { destination: "file", logAppend: true, path: "/var/log/mongodb/mongodb.log" } }
2016-01-05T22:51:21.895+0000 E NETWORK [initandlisten] Failed to unlink socket file /tmp/mongodb-27017.sock errno:1 Operation not permitted
2016-01-05T22:51:21.895+0000 I - [initandlisten] Fatal Assertion 28578
2016-01-05T22:51:21.895+0000 I - [initandlisten]
***aborting after fassert() failure
I previously had a mongodb installed which worked fine but stopped me from connecting to it after some changes I made to other services that were using mongodb. So I tried to remove that instance of mongodb and tried reinstalling, after which I am facing this issue.
I also try to look for the file: /tmp/mongodb-27017.sock but it does not exist on my system.
I had the same problem after installing MongoDB the same way, also got the error message 'Failed to unlink socket file /tmp/mongodb-27017.sock...'.
After doing a bit more digging I realised that the installation hadn't created the path /data/db, so here's what I did:
create the full path (the flag -p creates parent folders if they don't exist)
sudo mkdir -p /data/db
recursively change ownership of the folder /data/db to mongodb
sudo chown -R mongodb:mongodb /data/db
edit: if you're planning on running different instances of mongodb from different project folders, you, and not mongodb, should be the owner of the contents of /data/db, otherwise it will give you an error of the type exception in initAndListen: 98 Unable to create/open lock file: /data/db/mongod.lock
Remove the temporary socket file
sudo rm /tmp/mongodb-27017.sock
Initialise the mongod service
sudo service mongod start
After this it was running smoothly in my system. I could start it or stop it and it would not give me any more errors.
Hope this helps :)

Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused

while trying this mongo command in ubuntu
I am getting this error.
ritzysystem#ritzysystem-Satellite-L55-A:~$ mongo
MongoDB shell version: 2.6.1
connecting to: test
2014-10-06T12:59:35.802+0530 warning: Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused
2014-10-06T12:59:35.802+0530 Error: couldn't connect to server 127.0.0.1:27017 (127.0.0.1), connection attempt failed at src/mongo/shell/mongo.js:146
exception: connect failed
how can I rectify this is anyone had the same problem.
Run the following command :
sudo rm /var/lib/mongodb/mongod.lock
sudo service mongod restart
Connection refused to MongoDB errno 111
MacOS:
rm /usr/local/var/mongodb/mongod.lock
sudo service mongod restart
I had the same problem on Mac OS
Try to run sudo mongod and in a new terminal tab run mongo
thank you everyone I tried running mongo it was not running finally I found there was no space in my hard disc I emptied some of the space and finally re installed it the same installation procedure as followed to install as given in mongodb docs finally restarted the server and it is running.
https://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu
In my case the error was due to missing /data/db folder which the mongodb uses to store your data. Please type this command $sudo mongod in your terminal. If the error message is something like :
missing data/db folder error
Simply create the folder and you are good to go.
First,
Start MongoDB:
sudo service mongod start
Then, Run:
mongo
Probably you don't have space in your hard drive.
Check it by typing in the promt df -h
Please note that mongo might fail even with 3gb available in the corresponding partition. For details, you might want to check the log: cat /var/log/mongodb/mongod.log
Make sure you have run the MongoDB's Service before you want to connect the console.
run and start the server:
$ sudo mongod
then:
$ mongo
...
>
I had the same problem on my Mac, and I installed mongodb via homebrew. I solve this problem by the homebrew services command.
First start mongodb service:
$ brew services start mongodb
Start mongodb terminal
$ mongo
Stop mongodb service:
$ brew services stop mongodb
Do this:
sudo rm /var/lib/mongodb/mongod.lock
sudo service mongod restart
If you are on Ubuntu 16.04 which you can figure out by runnign this:
lsb_release -a
You need to Create a new file at /lib/systemd/system/mongod.service with the following contents:
[Unit]
Description=High-performance, schema-free document-oriented database
After=network.target
Documentation=https://docs.mongodb.org/manual
[Service]
User=mongodb
Group=mongodb
ExecStart=/usr/bin/mongod --quiet --config /etc/mongod.conf
[Install]
WantedBy=multi-user.target
In my case the problem was caused due to an apparent lost of permission over mongodb.lock file. I could solve the problem changing the permission with the following command :
sudo chown mongodb:mongodb /var/lib/mongodb/mongodb.lock
There follows my investigation:
I think except for disk space issuse, you should check the log in /var/log/mongodb to know the details for why mongodb start failed.
cat /var/log/mongodb/mongod.log
2016-06-26T15:26:26.642+0800 I CONTROL [main] ***** SERVER RESTARTED *****
2016-06-26T15:26:26.649+0800 I CONTROL [initandlisten] MongoDB starting : pid=8130 port=27017 dbpath=/var/lib/mongodb 64-bit host=hadoop-master
2016-06-26T15:26:26.649+0800 I CONTROL [initandlisten] db version v3.2.7
2016-06-26T15:26:26.649+0800 I CONTROL [initandlisten] git version: 4249c1d2b5999ebbf1fdf3bc0e0e3b3ff5c0aaf2
2016-06-26T15:26:26.649+0800 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.1f 6 Jan 2014
2016-06-26T15:26:26.649+0800 I CONTROL [initandlisten] allocator: tcmalloc
2016-06-26T15:26:26.649+0800 I CONTROL [initandlisten] modules: none
2016-06-26T15:26:26.649+0800 I CONTROL [initandlisten] build environment:
2016-06-26T15:26:26.649+0800 I CONTROL [initandlisten] distmod: ubuntu1404
2016-06-26T15:26:26.649+0800 I CONTROL [initandlisten] distarch: x86_64
2016-06-26T15:26:26.649+0800 I CONTROL [initandlisten] target_arch: x86_64
2016-06-26T15:26:26.649+0800 I CONTROL [initandlisten] options: { config: "/etc/mongod.conf", net: { bindIp: "127.0.0.1,192.168.3.10", port: 27017 }, storage: { dbPath: "/var/lib/mongodb", journal: { enabled: true } }, systemLog: { destination: "file", logAppend: true, path: "/var/log/mongodb/mongod.log" } }
2016-06-26T15:26:26.678+0800 E NETWORK [initandlisten] Failed to unlink socket file /tmp/mongodb-27017.sock errno:1 Operation not permitted
2016-06-26T15:26:26.678+0800 I - [initandlisten] Fatal Assertion 28578
2016-06-26T15:26:26.678+0800 I - [initandlisten]
***aborting after fassert() failure
So, here I need to rm all the files in the /tmp. That works fine for me.
For mongo v3.6.3+ (or 2019 versions)
rm /var/lib/mongodb/mongod.lock
service mongodb restart
I understand the question is with regards to Ubuntu.
But if you're getting the same error on a Mac and don't want $ sudo mongod running on a separate tab, you can do the following to fix the connection error, if you have Homebrew -
brew services start mongodb
Based on the answer from this thread - Cannot connect to mongodb errno:61 Connection refused
In my case bind_ip was not 127.0.0.1 in /etc/mongodb.conf file so change bind_ip to 127.0.0.1(it may be comma separated values so make sure 127.0.0.1 is one of them) Then restart your system to take effect.
Restart only to the those who are facing
$sudo service mongod restart
Failed to restart mongod.service: Unit mongod.service not found.
Follow this simple steps; (Works on MAC OS too)
Open terminal and run sudo mongod
Open a new terminal tab(Don't close step 1 tab) and run sudo mongo
That's all
is very simple, only delete a file /var/lib/mongodb/mongodb.lock. after only execute: mongo. finished
It is possible that the data directory for mongo specified in /etc/mongod.conf is not a valid path.
Try rechecking the path if it really exists sudo vi /etc/mongod.conf and check dbPath.
Just some thoughts on my case.
If you have changed the dbPath and logPath dirs to your custom values (say /data/mongodb/data, /data/mongodb/log), you must chown them to mongodb user, otherwise, the non-existent /data/db/ dir will be used.
sudo chown -R mongodb:mongodb /data/mongodb/
sudo service mongod restart
I have the same error with you, this is my case:
~# mongod
2018-07-15T05:27:08.265+0000 I JOURNAL [initandlisten] journal dir=/data/db/journal
2018-07-15T05:27:08.265+0000 I JOURNAL [initandlisten] recover : no journal files present, no recovery needed
2018-07-15T05:27:08.301+0000 I JOURNAL [durability] Durability thread started
2018-07-15T05:27:08.301+0000 I JOURNAL [journal writer] Journal writer thread started
2018-07-15T05:27:08.302+0000 I CONTROL [initandlisten] MongoDB starting : pid=26796 port=27017 dbpath=/data/db 64-bit host=ubuntu-s-2vcpu-4gb-sfo2-01
2018-07-15T05:27:08.302+0000 I CONTROL [initandlisten] ** WARNING: You are running this process as the root user, which is not recommended.
2018-07-15T05:27:08.302+0000 I CONTROL [initandlisten]
2018-07-15T05:27:08.302+0000 I CONTROL [initandlisten]
2018-07-15T05:27:08.302+0000 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2018-07-15T05:27:08.302+0000 I CONTROL [initandlisten] ** We suggest setting it to 'never'
2018-07-15T05:27:08.302+0000 I CONTROL [initandlisten]
2018-07-15T05:27:08.302+0000 I CONTROL [initandlisten] db version v3.0.6
2018-07-15T05:27:08.302+0000 I CONTROL [initandlisten] git version: 1ef45a23a4c5e3480ac919b28afcba3c615488f2
2018-07-15T05:27:08.302+0000 I CONTROL [initandlisten] build info: Linux build6.ny.cbi.10gen.cc 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49
2018-07-15T05:27:08.302+0000 I CONTROL [initandlisten] allocator: tcmalloc
2018-07-15T05:27:08.302+0000 I CONTROL [initandlisten] options: {}
2018-07-15T05:27:08.308+0000 I NETWORK [initandlisten] waiting for connections on port 27017
I type mongod to start the server, and I type control + c to exit to shell
then I type mongo and I got
~# mongo
MongoDB shell version: 3.0.6
connecting to: test
2018-07-15T05:05:02.738+0000 W NETWORK Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused
2018-07-15T05:05:02.739+0000 E QUERY Error: couldn't connect to server 127.0.0.1:27017 (127.0.0.1), connection attempt failed
at connect (src/mongo/shell/mongo.js:179:14)
at (connect):1:6 at src/mongo/shell/mongo.js:179
As you can see, my error info is same with you.
This is case mongod doesn't start with backend process, when I type control + c I quit mongod.
We can add --fork args to make the process daemon process.
# mongod --logpath /usr/local/mongodb/log.txt --fork
you have to set --logpath if you want to use --fork
then you will success to connect to mongo
I faced the same problem, so please check is there mongodb folder, firstly try to remove that folder
rm -rf /var/lib/mongodb/*
Now try to start mongo and if same problem then its mongodb lock file which prevent to start mongo, so please delete the mongo lock file
rm /var/lib/mongodb/mongod.lock
For forcefully rm -rf /var/lib/mongodb/mongod.lock
service mongodb restart if already in sudo mode
otherwise you need to use like sudo service mongod start
or you can start the server using fork method
mongod --fork --config /etc/mongod.conf
and for watching the same is it forked please check using the below command
ps aux | grep mongo
Mongo 3.*.* - OSX - 2017
From README
RUNNING
Change directory to mongodb-osx-x86_64-3.*.*/bin
To run a single server database:
$ mkdir /data/db
$ ./mongod
Go to new Terminal
$ # The mongo javascript shell connects to localhost and test database
$ # by default -Run the following command in new terminal
$ ./mongo
> help
I solved that simply by entering sudo mongo after mongod command.
I just removed mongo following the instructions here: https://docs.mongodb.com/manual/tutorial/install-mongodb-on-ubuntu/ And then I installed again following the instructions in the given link. Everything worked smoothly!
There are changes in mongod.conf file in the latest MongoDB v 3.6.5 +
Here is how I fixed this issue on mac os High Sierra v 10.12.3
Note: I assume that you have installed/upgrade MongoDB using homebrew
mongo --version
MongoDB shell version v3.6.5
git version: a20ecd3e3a174162052ff99913bc2ca9a839d618
OpenSSL version: OpenSSL 1.0.2o 27 Mar 2018
allocator: system modules: none build environment:
distarch: x86_64
target_arch: x86_64
find mongod.conf file
sudo find / -name mongod.conf`
/usr/local/etc/mongod.conf > first result .
open mongod.conf file
sudo vi /usr/local/etc/mongod.conf
edit in the file for remote access under net: section
port: 27017
bindIpAll: true
#bindIp: 127.0.0.1 // comment this out
restart mongodb
if you have installed using brew than
brew services stop mongodb
brew services start mongodb
otherwise, kill the process.
sudo kill -9 <procssID>
Issue was with the connection to the database, it could be due to several reasons.
For me it was low disk space on my server machine, and when mongo tries to connect it refuse because of low disk, check your server machine local storage with du -sh if you have low storage space, check your logs size and take step accordingly, issue may exist because of dbpath contradict in /etc/mongod.conf and server actually running dbpath with mongod
If you are facing such type of issue, please check my answer in the given link below.
https://stackoverflow.com/a/53057695/8247133
For those with Windows. I had the same problem on Windows.
Restarting Mongodb service solves this.
Following are the steps to restart on Windows:
i). Go To "Services" on Windows.
ii). Search for "MongoDB" in the list of services.
iii). Right click "start"/"restart" depending on your status.
iv). After the status turns to "running" check if issue is resolved by running "Mongo" or connecting your Mongo client.
For macOS many of the answers are already outdated according to official docs. Somehow the brew has changed and how we should install MongoDB, firstly uninstall it from your macOS (even though it might be not necessary) and then install it using these steps:
brew tap mongodb/brew
brew install mongodb-community#4.4
brew services start mongodb-community#4.4
Watch out for the 4.4 part, it'll change. If in the future it would break then refer to the official docs and install the version, which is suggested in the linked tutorial.

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