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Question

MySQL drops out every few days?

  • Posted September 26, 2012

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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Kamal Nasser • October 5, 2015

@talaviram MySQL is most likely crashing because it’s running out of memory. You can add swap to your droplet which should help with that:

If MySQL still crashes with a swapfile, you might have to upgrade your droplet to a plan with more RAM.

talaviram • October 5, 2015

same here :) fails after a few days providing the “Error establishing a database connection”

technext • September 6, 2014

I am getting the same problem! My Server Mysql stop working few times a day

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Ed Heltzel • November 20, 2014

Swap fixed my issues

fabiorosabm • February 14, 2014

I had same problem, setting up the swap fixed it for me.

nurudinjauhari • February 3, 2014

How to HARD REBOOT?

damian • July 23, 2013

Setting up the swap fixed it for me.

ryan1 • October 4, 2012

Thanks :) And good to know that search is in the pipeline.

Moisey Uretsky • October 4, 2012

Here are the links to the articles on how to add Swap in both Ubuntu and CentOS <br> <br>https://www.digitalocean.com/community/articles/how-to-add-swap-on-ubuntu-12-04 <br> <br>https://www.digitalocean.com/community/articles/how-to-add-swap-on-centos-6 <br> <br>Thanks for the suggestion on search for the community, it’s already in the works along with auto-search for users when you open up a ticket which will display articles and forum entries which may have info on how to solve an issue. <br>

ryan1 • October 4, 2012

Sorry for the late reply. It seems to be working after a hard reboot. <br> <br>Silvio - Thanks for the advice but unfortunately the logs where empty. <br> <br>Raiyu - The Community section REALLY needs a Search function, it becomes to time consuming to navigate and find answers. Can you please provide the link to the add swap article?

iwan.buetti • October 3, 2012

I have the same problem, i tryied to resize the VPS from 500mb to 1000mb, but MySQL refuses to start…

Moisey Uretsky • September 26, 2012

Your virtual server is most likely running out of resources you can resize to a larger server or add swap. <br> <br>We added articles on how to add swap to the community section.

silvio • September 26, 2012

Hey, <br>Try to start it again and then check your logs: <br> <br>tail /var/log/mysql.err <br>tail /var/log/mysql.log <br>dmesg | grep mysql <br> <br>It should say what’s wrong, and why it’s not starting :)