After mariaDB 10.0 to 10.1 upgrade, mysql can no longer write tmpdir












3















I ordered a new server that came with mariaDB 10.0 installed. I edited /etc/my.cnf to change the tmpdir to /home/mysql_tmp_dir (owned by mysql:mysql). All worked fine.



Did upgrade to mariaDB 10.1.37 and the tmpdir can no longer be written to:



[ERROR] mysqld: Can't create/write to file '/home/mysql_tmp_dir/ibV9SvJP' (Errcode: 13 "Permission denied")



This of course caused all kinds of problems, mainly that innodb engine was unable to load.



Commenting tmpdir out to revert to the default and restarting temporarily resolved the issue. But, I am at a loss as to why this happened and how to resolve it.



I need a larger tmpdir, otherwise it fills up when optimizing large databases, which of course causes mysql to lock up until space is freed.










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  • Get your admin to place more temporary space in a proper place in the filesystem. /home is not a proper place for temp files, and many other things will not be able to write here either.

    – Michael Hampton
    2 hours ago
















3















I ordered a new server that came with mariaDB 10.0 installed. I edited /etc/my.cnf to change the tmpdir to /home/mysql_tmp_dir (owned by mysql:mysql). All worked fine.



Did upgrade to mariaDB 10.1.37 and the tmpdir can no longer be written to:



[ERROR] mysqld: Can't create/write to file '/home/mysql_tmp_dir/ibV9SvJP' (Errcode: 13 "Permission denied")



This of course caused all kinds of problems, mainly that innodb engine was unable to load.



Commenting tmpdir out to revert to the default and restarting temporarily resolved the issue. But, I am at a loss as to why this happened and how to resolve it.



I need a larger tmpdir, otherwise it fills up when optimizing large databases, which of course causes mysql to lock up until space is freed.










share|improve this question







New contributor




vicos is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





















  • Get your admin to place more temporary space in a proper place in the filesystem. /home is not a proper place for temp files, and many other things will not be able to write here either.

    – Michael Hampton
    2 hours ago














3












3








3








I ordered a new server that came with mariaDB 10.0 installed. I edited /etc/my.cnf to change the tmpdir to /home/mysql_tmp_dir (owned by mysql:mysql). All worked fine.



Did upgrade to mariaDB 10.1.37 and the tmpdir can no longer be written to:



[ERROR] mysqld: Can't create/write to file '/home/mysql_tmp_dir/ibV9SvJP' (Errcode: 13 "Permission denied")



This of course caused all kinds of problems, mainly that innodb engine was unable to load.



Commenting tmpdir out to revert to the default and restarting temporarily resolved the issue. But, I am at a loss as to why this happened and how to resolve it.



I need a larger tmpdir, otherwise it fills up when optimizing large databases, which of course causes mysql to lock up until space is freed.










share|improve this question







New contributor




vicos is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












I ordered a new server that came with mariaDB 10.0 installed. I edited /etc/my.cnf to change the tmpdir to /home/mysql_tmp_dir (owned by mysql:mysql). All worked fine.



Did upgrade to mariaDB 10.1.37 and the tmpdir can no longer be written to:



[ERROR] mysqld: Can't create/write to file '/home/mysql_tmp_dir/ibV9SvJP' (Errcode: 13 "Permission denied")



This of course caused all kinds of problems, mainly that innodb engine was unable to load.



Commenting tmpdir out to revert to the default and restarting temporarily resolved the issue. But, I am at a loss as to why this happened and how to resolve it.



I need a larger tmpdir, otherwise it fills up when optimizing large databases, which of course causes mysql to lock up until space is freed.







mariadb






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asked 3 hours ago









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vicos is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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Check out our Code of Conduct.













  • Get your admin to place more temporary space in a proper place in the filesystem. /home is not a proper place for temp files, and many other things will not be able to write here either.

    – Michael Hampton
    2 hours ago



















  • Get your admin to place more temporary space in a proper place in the filesystem. /home is not a proper place for temp files, and many other things will not be able to write here either.

    – Michael Hampton
    2 hours ago

















Get your admin to place more temporary space in a proper place in the filesystem. /home is not a proper place for temp files, and many other things will not be able to write here either.

– Michael Hampton
2 hours ago





Get your admin to place more temporary space in a proper place in the filesystem. /home is not a proper place for temp files, and many other things will not be able to write here either.

– Michael Hampton
2 hours ago










1 Answer
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In earlier 10.1 release MariaDB added some systemd hardening, one of those was the setting to protect the homedir,



Try this



awk '/Protect/' /usr/lib/systemd/system/mariadb.service


If you see ProtectHome=true, you can either move the tmpdir somewhere else, or add



// File: /etc/systemd/system/mariadb.service.d/protecthome.conf
[Service]
ProtectHome=false


Related links




  • https://jira.mariadb.org/browse/MDEV-10298

  • https://jira.mariadb.org/browse/MDEV-10399






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    1 Answer
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    active

    oldest

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    active

    oldest

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    1














    In earlier 10.1 release MariaDB added some systemd hardening, one of those was the setting to protect the homedir,



    Try this



    awk '/Protect/' /usr/lib/systemd/system/mariadb.service


    If you see ProtectHome=true, you can either move the tmpdir somewhere else, or add



    // File: /etc/systemd/system/mariadb.service.d/protecthome.conf
    [Service]
    ProtectHome=false


    Related links




    • https://jira.mariadb.org/browse/MDEV-10298

    • https://jira.mariadb.org/browse/MDEV-10399






    share|improve this answer




























      1














      In earlier 10.1 release MariaDB added some systemd hardening, one of those was the setting to protect the homedir,



      Try this



      awk '/Protect/' /usr/lib/systemd/system/mariadb.service


      If you see ProtectHome=true, you can either move the tmpdir somewhere else, or add



      // File: /etc/systemd/system/mariadb.service.d/protecthome.conf
      [Service]
      ProtectHome=false


      Related links




      • https://jira.mariadb.org/browse/MDEV-10298

      • https://jira.mariadb.org/browse/MDEV-10399






      share|improve this answer


























        1












        1








        1







        In earlier 10.1 release MariaDB added some systemd hardening, one of those was the setting to protect the homedir,



        Try this



        awk '/Protect/' /usr/lib/systemd/system/mariadb.service


        If you see ProtectHome=true, you can either move the tmpdir somewhere else, or add



        // File: /etc/systemd/system/mariadb.service.d/protecthome.conf
        [Service]
        ProtectHome=false


        Related links




        • https://jira.mariadb.org/browse/MDEV-10298

        • https://jira.mariadb.org/browse/MDEV-10399






        share|improve this answer













        In earlier 10.1 release MariaDB added some systemd hardening, one of those was the setting to protect the homedir,



        Try this



        awk '/Protect/' /usr/lib/systemd/system/mariadb.service


        If you see ProtectHome=true, you can either move the tmpdir somewhere else, or add



        // File: /etc/systemd/system/mariadb.service.d/protecthome.conf
        [Service]
        ProtectHome=false


        Related links




        • https://jira.mariadb.org/browse/MDEV-10298

        • https://jira.mariadb.org/browse/MDEV-10399







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 3 hours ago









        Ryan GibbonsRyan Gibbons

        958920




        958920






















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