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Path: /data/config/mysql/ [ Home ]
File: generate_list_of_tables_per_db.sh
#!/bin/bash

# @Nicolas.Marguglio

# This script generates a text file with the list of tables on each db

set -o errexit
set -o pipefail

OUTPUTDIR=/data/config/mysql

[[ ! -d $OUTPUTDIR ]] && {
  echo "Unable to change dir to $OUTPUTDIR"
  exit 1
}

mkdir -p "${OUTPUTDIR}"/locks

# No user serviceable code below this line.

# Hostname/Filename needed with this format by:
# Provision/Modules/Unix/MySQL/DiskGenerate.pm:load_usage_mysql_five
hostname="$(hostname -s)"
hostname="$(egrep -o 'mysql[vc]?[0-9]+' <<< "${hostname}")"

dbdirs=()
mycnfs=()

case $hostname in

    mysqlv*)

        source /etc/conf.d/mysqld 

        [[ -z $DBDIR ]] && {
            echo "Unable to determine \$DBDIR from /etc/conf.d/mysqld"
            exit 1
        }

        dbdirs=( "$DBDIR" )

        ;;

    virt*|mysql*|vux)

        mycnfs=( /etc/my.*.cnf )
        dbdirs=( $(egrep -h -m1 '^datadir' ${mycnfs[@]} | tr -d ' \t' | cut -f2 -d'=') )

        ;;

    *)
        echo 'This is to be run only on mysql servers.'
        exit 1
        ;;

esac

for dbdir in ${dbdirs[@]}; do

    [[ ! -d $dbdir ]] && {
        echo "Unable to change dir to $dbdir"
        exit 1
    }

    # when we only have one datadir on the server, it is a mysqlV instance
    if [[ ${#dbdirs[@]} -eq 1 ]]; then
        suffix="${hostname}"
    else
        suffix=mysqlcluster"${dbdir//[[:alpha:]\/]}"
    fi
    
    (
        [[ ${#dbdirs[@]} -eq 1 ]] || flock -x -n 9 || exit 1

        cd "$dbdir" && {
	 find . -mindepth 2 -maxdepth 2 -type f -name '*MYD' -o -name '*ibd' \
            | sed -e 's/\.\///' \
	    | sed 's/....$//' > "${OUTPUTDIR}"/list_tables_"${suffix}"
        }

    ) 9>"${OUTPUTDIR}"/locks/list_tables_"${suffix}"

done