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Thread: fails to umount

  1. #1
    Join Date
    Mar 2015

    Question fails to umount

    Hi guys,

    I have the latest version running, everything works fine except zrm will not umount the mounted snapshot after its done copying data over.

    ZRM run log:

    dailyrun:backup:INFO: Mounting snapshot
    dailyrun:backup:INFO: /usr/share/mysql-zrm/plugins/ --action mount --dev /dev/VolGroup00/zrmHOOQMIqyZI --directory /backup/mysql/dailyrun/20150302105307/ZRM_MOUNTS/zrmHOOQMIqyZI --fstype ext3 --host db

    dailyrun:backup:INFO: Start copying data from remote.
    dailyrun:backup:INFO: Unmounting
    dailyrun:backup:INFO: /usr/share/mysql-zrm/plugins/ --action umount --directory /backup/mysql/dailyrun/20150302105307/ZRM_MOUNTS/zrmHOOQMIqyZI --host db
    copy-plugin returned error

    dailyrun:backup:WARNING: umount failed. Command used is /usr/share/mysql-zrm/plugins/ --action umount --directory /backup/mysql/dailyrun/20150302105307/ZRM_MOUNTS/zrmHOOQMIqyZI --host db

    mount on "db" server:

    /dev/mapper/VolGroup00-zrmHOOQMIqyZI 59G 50G 5.7G 90% /backup/mysql/dailyrun/20150302105307/ZRM_MOUNTS/zrmHOOQMIqyZI

    sudoers on "db" server:

    mysql ALL = NOPASSWD:/bin/mount, NOPASSWD:/bin/umount, NOPASSWD:/bin/df, NOPASSWD:/usr/sbin/lvdisplay, NOPASSWD:/usr/sbin/lvcreate, NOPASSWD:/usr/sbin/lvremove

    This backup runs nightly and it happens every time, I have to manually logon to db server umount and remove the snapshot.

    CentOS 5.x


  2. #2


    I face the same error. This happens with bigger backups ~8Gb. Smaller backups are working.

    Another system with the same settings is working fine.

    SLES 11

    BACKUP SUMMARY:Backup Type = CopyBackup Level = 0
    MySQL Version = 5.5.30-log
    Host = sitecu
    Databases backed up in raw mode using snapshot = kpi
    Retention policy = 10D
    Compress = No
    Encrypted = No
    STATISTICS:Size of backup = 8.41 GB
    Time taken for backup = 00:19:33
    Time duration for which read locks were held = 00:00:02
    Time taken for flushing database pages to disk = 00:00:00
    WARNINGS:umount failed. Command used is /usr/share/mysql-zrm/plugins/ --action umount --directory /var/lib/mysql-zrm/sitecu-kpi_full/20140821080001/ZRM_MOUNTS/zrmRVyhQGXO1d --host sitecuOutput of command: 'remove-snapshot' is [ - Permission denied (publickey,keyboard-interactive).
    - Could not create directory /tmp/XEZ4LuoDVj on host sitecu at /usr/share/mysql-zrm/plugins/ line 430. - copy-plugin returned error - ] remove snapshot failed. Command used is /usr/share/mysql-zrm/plugins/ --action remove-snapshot --host sitecu --dev \"/dev/vg1/zrmRVyhQGXO1d\" --directory \"/var/lib/mysql-zrm/sitecu-kpi_full/20140821080001/ZRM_MOUNTS/zrmRVyhQGXO1d\" > /tmp/6uduz6N3vp 2>&1

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