MongoDB automatically updated to 3.6 after doing a system update and was no longer compatible with my old dataset. So I downgraded to 3.4 again, however now the mongo instance won't start at all and exits with error code 100. Any help would be appreciated.
There were a series of issues piggybacking on one another here, but I sorted this out.
Firstly I reverted from 3.6 to 3.4 by uninstalling Mongo:
sudo service mongod stop
sudo apt-get purge mongodb-org*
Then I installed the specific version of Mongo:
apt-get install mongodb-org=3.4.1 mongodb-org-server=3.4.1 mongodb-org-shell=3.4.1 mongodb-org-mongos=3.4.1 mongodb-org-tools=3.4.10
Then I deleted the .lock files:
rm -rf /path/to/mongod.lock
rm -rf /path/to/WiredTiger.lock
Next you have to grant permissions to Mongo again:
sudo systemctl enable mongod
(Make sure the dbpath is correct in /etc/mongod.conf. If you want to make any changes to the mongod.service file, do it now, and remember to run systemctl daemon-reload to set the changes.)
Then finish updating permissions:
sudo chown -R mongodb:mongodb /var/lib/mongodb
sudo chown -R mongodb:mongodb /var/log/mongodb
Now service mongod start or sudo systemctl mongod start should work.
Here are links to some of the resources I found helpful:
Installing Mongo on Ubunut
Uninstalling MongoDB
Installing a specific version of Mongo
Setting Mongo file permissions
Related
I have tried the following steps to install and setup mongodb in my mac from here https://docs.mongodb.com/manual/tutorial/install-mongodb-on-os-x/ but I got the following error when running the final "mongo" command in my terminal:
Error Message - Zsh: Command Not found : mongo
This error msg occurred after trying to install mongodb 4.2 using brew
sudo chown -R $(whoami) $(brew --prefix)/*
then
brew tap mongodb/brew
then
brew install mongodb-community#4.2
and
brew services start mongodb-community#4.2
or
mongod --config /usr/local/etc/mongod.conf
then
ps aux | grep -v grep | grep mongod
and
mongo
running brew services start mongodb-community#4.2 returns:
Successfully started `mongodb-community#4.2` (label: homebrew.mxcl.mongodb-community#4.2)
running ps aux | grep -v grep | grep mongod returns:
9081 0.2 0.5 5528024 41856 ?? S 3:01pm 0:01.48 /usr/local/opt/mongodb-community#4.2/bin/mongod --config /usr/local/etc/mongod.conf
7613 0.0 0.1 4298832 5600 s000 T 2:47pm 0:00.08 vim /usr/local/etc/mongod.conf
running mongod --config /usr/local/etc/mongod.conf returns:
zsh: command not found: mongod
There are also no mongo files in my /usr/local/bin directory after using these commands
I created a data/db folder in my /usr/local/bin directory using the following commands:
sudo mkdir -p /usr/local/bin/data/db
sudo chown -R `id -un` /usr/local/bin/data/db
Running "brew update" returns:
brew update
Updated 1 tap (homebrew/cask).
==> Updated Casks
brave-browser
brew install mongodb-community-shell
Fixed the problem for me.
Solved it by manually installing the mongodb community files and db tools using the website instead. Then copying them into /usr/local/bin. Then ignoring the app permissions whenever calling mongo or related commands in the terminal through System Preferences > Security & Privacy > General.
After googling I found out that mongoimport and the other features have to be installed separately: https://www.mongodb.com/try/download/database-tools
Followed by copying those bin files after extracting them into the same /usr/local/bin directory
Not sure why its' not working through homebrew though
This worked for me, I was having same issue on mongodb-community#4.4
brew reinstall mongodb-community#4.4
On terminal something like this will appear during reinstallation.
copy highlighted path with echo
echo 'export PATH="/opt/homebrew/opt/mongodb-community#4.4/bin:$PATH"' >> ~/.zshrc
Now open another terminal and start mongodb services
brew services restart mongodb/brew/mongodb-community#4.4
write mongo on terminal and here we fly
If you installed the mongodb via Homebrew. Need to add the mongo path in your bash_profile.
Edit the bash_profile vi ~/.bash_profile
Add the below line in EOF export PATH=$PATH:/usr/local/opt/mongodb-community#4.2/bin
After the edit bash_profile. Close all terminals and open them again. mongo command start works.
In addition to #ramesh-babu-t-b 's answer, https://stackoverflow.com/a/68407530/1279516, the issue could also be that your MongoDB installation did add mongod to your path, but the installation happened within the current shell session, and so your shell doesn't have the updates to the PATH variable yet.
In this case, only his last step is still necessary - Open a new console window and retry the mongod command.
I am experiencing the following problem using mongodb.
This is the error, when I check the status:
Screenshot of the error (mongodb.service, status 14)
Screenshot of code in the mongod.config file
Screenshot of the log file
I have tried uninstalling mongodb following every step from the website and install everything again and when I check the status I still get the same error. I have posted the screenshot of the error.
I am using MacBook pro if this matters.
Would really appreciate, if someone can help me fix this.
By changing the owner to monogdb user of
/var/lib/mongodb and /tmp/mongodb-27017.lock has worked for me.
sudo chown -R mongodb:mongodb /var/lib/mongodb
sudo chown mongodb:mongodb /tmp/mongodb-27017.sock
It seems from the log you have a unclean shutdown before. Or, it could also indicates that mongod is already running.
First, make sure mongod is not running already
ps aux | grep mongod
If it's not, remove the file:
rm /tmp/mongodb-27017.sock
Then try systemctl start mongod to start MongoDB again.
After rebooting in the command line,it fixed to problem,don’t know why after stopping mongo and uninstalling and installing it didn’t fix the problem, but after reboot everything is working fine.
This worked for me on Ubuntu 18.04
Go to the TMP directory: cd /tmp
Check if you have the mongodb sock file: ls *.sock
Change the user:group permission: chown mongodb:mongodb <YOUR_SOCK>
Start MongoDB: sudo service mongod start
Check the MongoDB status: sudo service mongod status
If this does not work you can try
sudo reboot
Please see here : https://medium.com/#gabrielpires/mongodb-ubuntu-16-04-code-exited-status-14-aws-lightsail-problem-417ffc78cb11
I had a similar issue and even though the permissions were all okay, the service failed to start. I had a look at the mongodb log
sudo tail -40 /var/log/mongodb/mongod.log
It said that the database was shutdown unexpectedly and needed to be repaired. I ran
sudo mongod --repair --config /etc/mongod.conf
This fixed the database, but now changed the permissions. You will need to do the chown steps again.
sudo chown -R mongodb:mongodb /var/lib/mongodb
sudo chown mongodb:mongodb /tmp/mongodb-27017.sock
Start the mongod service. It would be up & running now.
Same happended with CentOS Stream 8
the user for mongodb service is mongo and group is also mongo
sudo chown mongod:mongod /tmp/mongodb-27017.sock
Resolved, after checking the logfile, showing mongodb-27017.sock failed to start.
I have a similar issue. Was a SELinux blocking the normal execution.
So, I did:
# ausearch -c 'mongod' --raw | audit2allow -M my-mongod
# semodule -X 300 -i my-mongod.pp
and then:
$ sudo systemctl start mongod
and check:
sudo systemctl status mongod
chown -R mongodb:mongodb /var/lib/mongodb
chown mongodb:mongodb /tmp/mongodb-27017.sock
I'm trying to install Adminer from Ubuntu repository using:
sudo apt install adminer
Installation works fine but can't find the file /etc/adminer/apache.conf to use with Apache server. The folder /etc/adminer/ is empty and can't find it anywhere with find command.
Any help?
Thanks in advance.
In the next few steps, I'll show you how I installed adminer for Ubuntu 18.04.1 LTS .
After installation with apt package manager change into the adminer directory.
cd /usr/share/adminer
There you will find a file called compile.php.
Run the following command and the adminer-X.X.X.php (X.X.X for your version) file will be created.
sudo php compile.php
Create the apache adminer configuration file.
sudo echo "Alias /adminer.php /usr/share/adminer/adminer-X.X.X.php" | sudo tee /etc/apache2/conf-available/adminer.conf
Now you'll need to activate the configuration.
cd /etc/apache2/conf-available/
sudo a2enconf adminer.conf
Reload your apache webserver.
sudo systemctl reload apache2.
Test in your browser of choice (localhost/adminer.php)
This source was really helpful:
https://www.linuxhelp.com/how-to-install-adminer-on-ubuntu-16-04/
Install Apache:
sudo apt-get install apache2
Install PHP:
sudo apt-get install php libapache2-mod-php php-mysql
Install Adminer:
sudo wget "http://www.adminer.org/latest.php" -O /var/www/html/adminer.php
Once the installation completes, restart Apache.
sudo service apache2 restart
At this point, the setup is complete. You can access Adminer at the following address.
http://[SERVER_IP]/adminer.php
When I try to run mongod from the terminal, I get the following error:
2014-07-02T23:56:24.797-0700 [initandlisten] ERROR: listen(): bind() failed errno:48 Address already in use for socket: 0.0.0.0:27017
2014-07-02T23:56:24.797-0700 [initandlisten] ERROR: addr already in use
I recently realize that I have two versions of MongoDB on my Mac, and think this may be the source for the above error. (Plus, I do not need two version.) I tried Googling, but was not able to find clear directions on how I can uninstall. I have development version 2.7.0 AND 2.6.3.
Thanks so much in advance for the help!
Run the following commands to remove mongodb from the launch/startup and to uninstall it using Homebrew:
# See if mongo is in the launch/startup list
launchctl list | grep mongo
# Remove mongodb from the launch/startup
launchctl remove homebrew.mxcl.mongodb
# Kill the mongod process just in case it's running
pkill -f mongod
# Now you can safely remove mongodb using Homebrew
brew uninstall mongodb
Just double-check in /usr/local/bin/ to make sure that the mongodb commands are removed.
For uninstalling the community version, i found that the command brew uninstall mongodb-community worked for me
Nitin Jadhav version worked for me, brew uninstall mongodb kept given me Error: No such keg: /usr/local/Cellar/mongodb. I was removing a mongodb-community.
use cd /usr/local/Cellar then run ls -a and then run rm -rf mongodb-community to remove it
I would suggest navigating into your /usr/local/Cellar and run an ls -a, I had a community version of mongo installed that wasn't being picked up by the command given above. If you find any mongo versions there just rm -rf each instance
For those having this error in osx:
brew uninstall mongodb Error: No such keg: /usr/local/Cellar/mongodb
execute brew list | grep mongo
for example, it could show something like:
mongodb-community#4.2
mongodb-database-tools
mongosh
remove them with brew uninstall mongodb-community#4.2 mongodb-database-tools mongosh
Also execute launchctl remove homebrew.mxcl.mongodb as #anuvrat-tiku says in his answer.
By mistake I have applied the command,
sudo rm -rf /etc/init.d/apache2 restart
after that i can't run apache2
How can I solve this?
Do as below:
sudo apt-get purge apache2
sudo apt-get install apache2
sudo service apache2 start
If Apache2 is installed as part of a system package (e.g. with Debian apt-get), then you should be able to get it back by removing and reinstalling the package (I hesitate to say use e.g. the reinstall option because I don't think that touches config files). You could also fetch the source package and find the init.d file in that and copy it back.