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Thread: /dev/md1 full

  1. #1

    /dev/md1 full

    my site is down. It couldn't connect to MySQL DB, so I checked in Terminal and did a df

    the result is:

    Filesystem 1K-blocks Used Available Use% Mounted on
    rootfs 20317384 19341420 0 100% /
    devtmpfs 4038764 200 4038564 1% /dev
    tmpfs 4048600 0 4048600 0% /dev/shm
    /dev/md1 20317384 19341420 0 100% /
    /dev/md3 948224680 19758540 880678420 3% /home

    As you can see, MD1 is full. How can I make space here?

    It's using ZPanel / Joomla 2.5x and I can access the site through SFTP and Terminal.


  2. #2
    Join Date
    Mar 2003
    You need to check the partition and see what is eating up. Usually these are logs.
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  3. #3
    If the log files are eating up the space, you can just crop the file keeping the last 100 or 1000 lines.

  4. #4
    Join Date
    May 2006
    Quote Originally Posted by supportbureau View Post
    If the log files are eating up the space, you can just crop the file keeping the last 100 or 1000 lines.
    Be careful if the logs we are talking about are mysql binglogs (as that usually happens)... don't "crop" but use the official mysql commands to trim them...
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  5. #5
    Your / partition is full. It seems that mySQL data are also stored in the same partition. You will not be able to start MySQL service until you free the space in / partition. It seems that server was configured with default partition settings. You have lots of space in /home but / partition has only 20 GB.
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  6. #6
    Join Date
    Mar 2005
    root cause - Bad decision made when server was deployed on how the filesystem was set up.

    Yep, disk is full, need to free up space.

    There are a lot of posts about this exact same issue if you search might get you started...
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  7. #7
    you can change mysql directory

    Stop MySQL using the following command:

    sudo /etc/init.d/mysql stop
    Copy the existing data directory (default located in /var/lib/mysql) using the following command:

    sudo cp -R -p /var/lib/mysql /newpath
    edit the MySQL configuration file with the following command:

    gedit /etc/mysql/my.cnf
    Look for the entry for datadir, and change the path (which should be /var/lib/mysql) to the new data directory.

    In the terminal, enter the command:

    sudo gedit /etc/apparmor.d/usr.sbin.mysqld
    Look for lines beginning with /var/lib/mysql. Change /var/lib/mysql in the lines with the new path.

    Save and close the file.
    Restart the AppArmor profiles with the command:

    sudo /etc/init.d/apparmor reload
    Restart MySQL with the command:

    sudo /etc/init.d/mysql restart
    Now login to MySQL, and you can access the same databases you had before.

  8. #8
    First you need to check for log files size. If that doesn't help, best option would be move your mysql data directory to another partition which is having more space.

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