So I have followed the tutorial to Install Wordpress, Nginx, PHP, and Varnish on Ubuntu 12.04. The process was smooth and easily installed, so no problems there.
The issue is every few days the MySQL connect drops out and when I run the command: $ sudo service mysql start
I get a the following message: $ start: Job failed to start
The other issues is when it first happened, I looked into setting up a script to run in cron every 5 minutes.
# CHECK DATABASE STATUS
# launch-mysql.sh
ps auxw | grep mysql | grep -v grep > /dev/null
if [ $? != 0 ]
then
sudo service mysql start > /dev/null
fi
Then added this to $ cron -e
*/5 * * * * ~/launch-mysql.sh
But that is not working either, any thoughts or help would be greatly appreciated.
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Hello all,
When facing with an MySQL issue on your Droplet. Here’s a quick guide to help you troubleshoot the problem:
Check MySQL logs for errors:
Inspect the MySQL error logs for any issues or failures that may have occurred. Usually you can find the log at
/var/log/mysql/error.log. If there are any specific error messages, you can further act upon themCheck system logs for process termination:
Sometimes, the MySQL process may be killed by the system due to resource constraints. To check if this happened, inspect the system logs:
If you find such messages, it’s an indication that your Droplet is running out of resources, and you may need to upgrade your Droplet or optimize your MySQL configuration.
Configure swap space:
If your Droplet is running out of memory, configuring swap space can help alleviate the issue. Swap space acts as a temporary storage location for data when your system runs out of RAM.
You can find more about how to add SWAP to your Droplet here:
https://www.digitalocean.com/community/tutorial_collections/how-to-add-swap-space
Hope that helps!
Heya,
I’ll recommend to follow all the steps listed by KFSys in order to fix any errors on your droplet. Then you can create a simple bash script to check if MySQL is running and if not to restart it.
Run this script every 5 minutes using a cron job like this one:
Hope that this helps!
Swap fixed my issues