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    Backup errors: "No such file or directory", "Too many levels of symbolic links", "File removed before we read it"

    • Article Type: General
    • Product: Aleph
    • Product Version: 20

    Problem Symptoms:
    Multiple error messages of the following types appear in the /exlibris/backup/logs directory for the user_data backup or other backups:

    1. rm: cannot remove `/exlibris/aleph/a22_1/tmp/demo_libs': No such file or directory
    2. tar: exlibris/aleph/u22_1/alephe/www_f_eng.... : Cannot stat: Too many levels of symbolic links
    3. tar: exlibris/aleph/u22_1/alephe/apache/htdocs/exlibris/aleph/u22_1/alephe/www_f_eng/icon: File removed before we read it

    tar: Exiting with failure status due to previous errors
    tar command failed {status=1}

    Cause:
    1 and 3 These are occurring when the script is attempting to read temporary non-essential files. There may be other jobs running simultaneously which are changing or deleting those files

    2- Cannot stat: Too many levels of symbolic links.
    This temp directory contains an endless symbolic loop. This is not a problem for the backup.

    Resolution:
    **The Aleph system should be shut down before performing backups in order to avoid these warnings.** (Note: this should not be necessary for the hot backup.)

    Additional Information

    The messages are seen in response to the following command: grep -v '^exlibris\/' user_data_a5_Detail_*log*

    Category: System Management (500)


    • Article last edited: 12/12/2014
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