xenial (1) mysqldiskusage.1.gz

Provided by: mysql-utilities_1.6.1-2_all bug

NAME

       mysqldiskusage - Show Database Disk Usage

SYNOPSIS

       mysqldiskusage [options] db ...

DESCRIPTION

       This utility displays disk space usage for one or more databases. The utility optionally displays disk
       usage for the binary log, slow query log, error log, general query log, relay log, and InnoDB
       tablespaces. The default is to show only database disk usage.

       If the command line lists no databases, the utility shows the disk space usage for all databases.

       Sizes displayed without a unit indicator such as MB are in bytes.

       The utility determines the the location of the data directory by requesting it from the server. For a
       local server, the utility obtains size information directly from files in the data directory and InnoDB
       home directory. In this case, you must have file system access to read those directories. Disk space
       usage shown includes the sum of all storage engine- specific files such as the .MYI and .MYD files for
       MyISAM and the tablespace files for InnoDB.

       If the file system read fails, or if the server is not local, the utility cannot determine exact file
       sizes. It is limited to information that can be obtained from the system tables, which therefore should
       be considered an estimate. For information read from the server, the account used to connect to the
       server must have the appropriate permissions to read any objects accessed during the operation.

       If information requested requires file system access but is not available that way, the utility prints a
       message that the information is not accessible. This occurs, for example, if you request log usage but
       the server is not local and the log files cannot be examined directly.

       To specify how to display output, use one of the following values with the --format option:

       •   grid (default)

           Display output in grid or table format like that of the mysql monitor.

       •   csv

           Display output in comma-separated values format.

       •   tab

           Display output in tab-separated format.

       •   vertical

           Display output in single-column format like that of the \G command for the mysql monitor.

       To turn off the headers for csv or tab display format, specify the --no-headers option.
             OPTIONS

       mysqldiskusage accepts the following command-line options:

       •   --help

           Display a help message and exit.

       •   --all, -a

           Display all disk usage. This includes usage for databases, logs, and InnoDB tablespaces.

       •   --binlog, -b

           Display binary log usage.

       •   --empty, -m

           Include empty databases.

       •   --format=<format>, -f<format>

           Specify the output display format. Permitted format values are grid, csv, tab, and vertical. The
           default is grid.

       •   --innodb, -i

           Display InnoDB tablespace usage. This includes information about the shared InnoDB tablespace as well
           as .idb files for InnoDB tables with their own tablespace.

       •   --logs, -l

           Display general query log, error log, and slow query log usage.

       •   --no-headers, -h

           Do not display column headers. This option applies only for csv and tab output.

       •   --quiet, -q

           Suppress informational messages.

       •   --relaylog, -r

           Display relay log usage.

       •   --server=<server>

           Connection information for the server in the format: <user>[:<passwd>]@<host>[:<port>][:<socket>] or
           <login-path>[:<port>][:<socket>].

       •   --verbose, -v

           Specify how much information to display. Use this option multiple times to increase the amount of
           information. For example, -v = verbose, -vv = more verbose, -vvv = debug.

       •   --version

           Display version information and exit.

       For the --format option, the permitted values are not case sensitive. In addition, values may be
       specified as any unambiguous prefix of a valid value. For example, --format=g specifies the grid format.
       An error occurs if a prefix matches more than one valid value.
             NOTES

       You must provide connection parameters (user, host, password, and so forth) for an account that has the
       appropriate privileges for all objects accessed during the operation.

       The path to the MySQL client tools should be included in the PATH environment variable in order to use
       the authentication mechanism with login-paths. This will allow the utility to use the my_print_defaults
       tools which is required to read the login-path values from the login configuration file (.mylogin.cnf).
             EXAMPLES

       To show only the disk space usage for the employees and test databases in grid format (the default), use
       this command:

           $ mysqldiskusage --server=root@localhost employees test
           # Source on localhost: ... connected.
           # Database totals:
           +------------+--------------+
           | db_name    |       total  |
           +------------+--------------+
           | employees  | 205,979,648  |
           | test       |       4,096  |
           +------------+--------------+
           Total database disk usage = 205,983,744 bytes or 196.00 MB
           #...done.

       To see all disk usage for the server in CSV format, use this command:

           $ mysqldiskusage --server=root@localhost --format=csv -a -vv
           # Source on localhost: ... connected.
           # Database totals:
           db_name,db_dir_size,data_size,misc_files,total
           test1,0,0,0,0
           db3,0,0,0,0
           db2,0,0,0,0
           db1,0,0,0,0
           backup_test,19410,1117,18293,19410
           employees,242519463,205979648,242519463,448499111
           mysql,867211,657669,191720,849389
           t1,9849,1024,8825,9849
           test,56162,4096,52066,56162
           util_test_a,19625,2048,17577,19625
           util_test_b,17347,0,17347,17347
           util_test_c,19623,2048,17575,19623
           Total database disk usage = 449,490,516 bytes or 428.00 MB
           # Log information.
           # The general_log is turned off on the server.
           # The slow_query_log is turned off on the server.
           # binary log information:
           Current binary log file = ./mysql-bin.000076
           log_file,size
           /data/mysql-bin.000076,125
           /data/mysql-bin.000077,125
           /data/mysql-bin.000078,556
           /data/mysql-bin.000079,168398223
           /data/mysql-bin.index,76
           Total size of binary logs = 168,399,105 bytes or 160.00 MB
           # Server is not an active slave - no relay log information.
           # InnoDB tablespace information:
           InnoDB_file,size,type,specificaton
           /data/ib_logfile0,5242880,log file,
           /data/ib_logfile1,5242880,log file,
           /data/ibdata1,220200960,shared tablespace,ibdata1:210M
           /data/ibdata2,10485760,shared tablespace,ibdata2:10M:autoextend
           /data/employees/departments.ibd,114688,file tablespace,
           /data/employees/dept_emp.ibd,30408704,file tablespace,
           /data/employees/dept_manager.ibd,131072,file tablespace,
           /data/employees/employees.ibd,23068672,file tablespace,
           /data/employees/salaries.ibd,146800640,file tablespace,
           /data/employees/titles.ibd,41943040,file tablespace,
           Total size of InnoDB files = 494,125,056 bytes or 471.00 MB
           #...done.

SEE ALSO

       For more information, please refer to the MySQL Utilities section of the MySQL Workbench Reference
       Manual, which is available online at http://dev.mysql.com/doc/workbench/en/.

AUTHOR

       Oracle Corporation (http://dev.mysql.com/).