Mongod Service start exits with code 100
Solution 1
You may still have some problems with the permissions in your data directory. Especially if you have run mongod from the terminal to start with.
I find that the data files are created under root not the mongodb user when you run from the terminal. To fix ..
sudo chown -R mongodb:mongodb /var/lib/mongodb/*
Solution 2
rm /var/lib/mongodb/mongod.lock
systemctl restart mongod
systemctl status mongod
Try this!
Solution 3
Remove the mongod.lock
file under 'dbath'
, and it should start without issues.
Solution 4
I know it's quite late, but maybe this will help someone in need.
I checked the /var/log/mongodb and found this:
Failed to unlink socket file /tmp/mongodb-27017.sock Operation not permitted
I guess that permission is set to root, not mongodb because I used sudo to start mongod. (Maybe someone can help clarifying this)
So the solution is to delete that /tmp/mongodb-27017.sock
and restart the service again. At least that worked for me. (Sorry for my bad English)
https://mkyong.com/mongodb/mongodb-failed-to-unlink-socket-file-tmpmongodb-27017/
Jankapunkt
License Note All my code provided on this network is, unless the respective website or it's owners states otherwise, licensed as MIT. If there will be an awesome answer, I will link it here. I am working as a scientific employee at the University of Bremen educational department and also study for Phd there. My current technology stack is fullstack js applications using Meteor, Blaze, React, MongoDB, Bootstrap. Me on codewars:
Updated on December 01, 2021Comments
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Jankapunkt over 2 years
Problem
My mongo service does not start anymore:
root@machine ~ # service mongod start root@machine ~ # service mongod status ● mongod.service - High-performance, schema-free document-oriented database Loaded: loaded (/lib/systemd/system/mongod.service; enabled; vendor preset: enabled) Active: failed (Result: exit-code) since Tue 2017-08-15 12:03:51 CEST; 2s ago Docs: https://docs.mongodb.org/manual Process: 26942 ExecStart=/usr/bin/mongod --config /etc/mongod.conf (code=exited, status=100) Main PID: 26942 (code=exited, status=100) Aug 15 12:03:50 machine systemd[1]: Started High-performance, schema-free document-oriented database. Aug 15 12:03:51 machine systemd[1]: mongod.service: Main process exited, code=exited, status=100/n/a Aug 15 12:03:51 machine systemd[1]: mongod.service: Unit entered failed state. Aug 15 12:03:51 machine systemd[1]: mongod.service: Failed with result 'exit-code'.
Where exit code 100 is blurry defined as:
Returned by mongod when the process throws an uncaught exception.
What I did
First, I have installed my mongodb (3.4.7) on Ubuntu 16.04.2 LTS via the official guide.
Starting and stopping the service worked fine. So I continued to enable authentication (again via the official guide).
Then I added the service to be able to run on server startup.
root@machine ~ # systemctl enable mongod.service
mongod.conf
I also edited my config file, which is passed a yaml linter:
# Where and how to store data. storage: dbPath: /var/lib/mongodb journal: enabled: true # engine: mmapv1 # mmapv1: # wiredTiger: # where to write logging data. systemLog: destination: file logAppend: true path: /var/log/mongodb/mongod.log # network interfaces net: port: 27017 bindIp: 127.0.0.1 #processManagement: security: authorization: enabled
The ownership of the file is
root@machine ~ # ls -la /etc/ | grep mongo -rw-r--r-- 1 root root 599 Aug 15 11:42 mongod.conf
DbPath
I know there are issues with the dbpath so this is what
/var/lib/mongodb
has in terms of ownership:root@ machine ~ # ls -la /var/lib/ | grep mongo drwxr-xr-x 4 mongodb mongodb 4096 Aug 15 11:54 mongodb
Service List
When listing all services via
service --status-all
there is no entry for any mongo related service.Somebody has a clue what could cause the issue?
UPDATE
As suggested I ran the following command (with a slight modification):
root@machine ~ /usr/bin/mongod --verbose --config /etc/mongod.conf & [1] 28495
When I get it right, this is a direct execute of the binary. This allows me now to at least login into mongo shell:
root@machine ~ # mongo MongoDB shell version v3.4.7 connecting to: mongodb://127.0.0.1:27017 MongoDB server version: 3.4.7 >
However, the service status is still remaining failed with exit code 100.
UPDATE UPDATE
When typing
root@machine ~ # /usr/bin/mongod --verbose
I receive the following error:
2017-08-15T13:45:40.973+0200 I CONTROL [initandlisten] MongoDB starting : pid=28642 port=27017 dbpath=/data/db 64-bit host=machine 2017-08-15T13:45:40.973+0200 I CONTROL [initandlisten] db version v3.4.7 2017-08-15T13:45:40.973+0200 I CONTROL [initandlisten] git version: cf38c1b8a0a8dca4a11737581beafef4fe120bcd 2017-08-15T13:45:40.973+0200 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.2g 1 Mar 2016 2017-08-15T13:45:40.973+0200 I CONTROL [initandlisten] allocator: tcmalloc 2017-08-15T13:45:40.973+0200 I CONTROL [initandlisten] modules: none 2017-08-15T13:45:40.973+0200 I CONTROL [initandlisten] build environment: 2017-08-15T13:45:40.973+0200 I CONTROL [initandlisten] distmod: ubuntu1604 2017-08-15T13:45:40.973+0200 I CONTROL [initandlisten] distarch: x86_64 2017-08-15T13:45:40.973+0200 I CONTROL [initandlisten] target_arch: x86_64 2017-08-15T13:45:40.973+0200 I CONTROL [initandlisten] options: { systemLog: { verbosity: 1 } } 2017-08-15T13:45:40.973+0200 D - [initandlisten] User Assertion: 29:Data directory /data/db not found. src/mongo/db/service_context_d.cpp 98 2017-08-15T13:45:40.973+0200 I STORAGE [initandlisten] exception in initAndListen: 29 Data directory /data/db not found., terminating 2017-08-15T13:45:40.973+0200 I NETWORK [initandlisten] shutdown: going to close listening sockets... 2017-08-15T13:45:40.973+0200 I NETWORK [initandlisten] shutdown: going to flush diaglog... 2017-08-15T13:45:40.973+0200 I CONTROL [initandlisten] now exiting 2017-08-15T13:45:40.973+0200 I CONTROL [initandlisten] shutting down with code:100