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Thread: mysqldump: Couldn't execute 'SELECT /*!40001 SQL_NO_CACHE */ ....

  1. #1

    Question mysqldump: Couldn't execute 'SELECT /*!40001 SQL_NO_CACHE */ ....

    I am running a simple pre-backup script to dump all my DBs to files:

    for D in $FINALDIR $TEMPDIR; do
      if [ ! -d "$D" ]; then
        mkdir "$D"
        chown bacula:bacula "$D"
        chmod 775 "$D"
    rm "$TEMPDIR"/* >/dev/null 2>&1
    # Dump each DB in separate file
    for I in $(mysql -u$USER -p$PASS -e 'show databases' -s --skip-column-names); do mysqldump -u$USER -p$PASS --skip-dump-date --single-transaction --lock-tables $I > "$TEMPDIR"/$I.sql; done 2>"$LOG"
    rsync -lIc --remove-source-files "$TEMPDIR"/* "$FINALDIR"
    rm "$TEMPDIR"/* >/dev/null 2>&1
    Everything works and the DBs are dumped. However in the log file I get:

    mysqldump: Couldn't execute 'SELECT /*!40001 SQL_NO_CACHE */ * FROM `PROFILING`': The 'SHOW PROFILE' feature is disabled; you need MariaDB built with 'enable-profiling' to have it working (1289)
    and because of this error I cannot use this script as a RunBeforeJob in Bacula. It fails the backup job because it returns a bad exit code.

    Is there a way to fix this without having to build MariaDB from source? All I need is a proper backup of the DBs.

  2. #2
    Join Date
    Jun 2008
    West Yorkshire, UK

    Default Re: mysqldump: Couldn't execute 'SELECT /*!40001 SQL_NO_CACHE */ ....

    Not sure how many databases you wish to backup but an alternative script would be a list of separate databases created with a series of mysqldump commands - unless, of course, that means you get the same error with each dump.

  3. #3

    Default Re: mysqldump: Couldn't execute 'SELECT /*!40001 SQL_NO_CACHE */ ....

    I want to backup all databases automatically.

    Anyway I found a workaround. I simply added 'exit 0' to the end of the script and now Bacula proceeds without problem.

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