MYSQLDUMPSLOW(1)                                      MariaDB Database System                                      MYSQLDUMPSLOW(1)

NAME
       mysqldumpslow - Summarize slow query log files

SYNOPSIS
       mysqldumpslow [options] [log_file ...]

DESCRIPTION
       The MariaDB slow query log contains information about queries that take a long time to execute.  mysqldumpslow parses
       MariaDB slow query log files and prints a summary of their contents.

       Normally, mysqldumpslow groups queries that are similar except for the particular values of number and string data values.
       It “abstracts” these values to N and ´S´ when displaying summary output. The -a and -n options can be used to modify value
       abstracting behavior.

       Invoke mysqldumpslow like this:

           shell> mysqldumpslow [options] [log_file ...]

       mysqldumpslow supports the following options.

       •   --help

           Display a help message and exit.

       •   -a

           Do not abstract all numbers to N and strings to ´S´.

       •   --debug, -d

           Run in debug mode.

       •   -g pattern

           Consider only queries that match the (grep-style) pattern.

       •   -h host_name

           Host name of MariaDB server for *-slow.log file name. The value can contain a wildcard. The default is * (match all).

       •   -i name

           Name of server instance (if using mysql.server startup script).

       •   -l

           Do not subtract lock time from total time.

       •   -n N

           Abstract numbers with at least N digits within names.

       •   -r

           Reverse the sort order.

       •   -s sort_type

           How to sort the output. The value of sort_type should be chosen from the following list:

           •   t, aa: Sort by rows affected or average rows affected

           •   l, ae: Sort by rows examined or aggregate rows examined

           •   l, at: Sort by query time or average query time

           •   l, al: Sort by lock time or average lock time

           •   s, as: Sort by rows sent or average rows sent

           •   c: Sort by count

       •   -t N

           Display only the first N queries in the output.

       •   --verbose, -v

           Verbose mode. Print more information about what the program does.

       Example of usage:

           shell> mysqldumpslow
           Reading mysql slow query log from /usr/local/mysql/data/mysqld51-apple-slow.log
           Count: 1  Time=4.32s (4s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
            insert into t2 select * from t1
           Count: 3  Time=2.53s (7s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
            insert into t2 select * from t1 limit N
           Count: 3  Time=2.13s (6s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
            insert into t1 select * from t1

COPYRIGHT
       Copyright 2007-2008 MySQL AB, 2008-2010 Sun Microsystems, Inc., 2010-2015 MariaDB Foundation

       This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public
       License as published by the Free Software Foundation; version 2 of the License.

       This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
       warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software
       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA or see http://www.gnu.org/licenses/.

SEE ALSO
       For more information, please refer to the MariaDB Knowledge Base, available online at https://mariadb.com/kb/

AUTHOR
       MariaDB Foundation (http://www.mariadb.org/).

MariaDB 10.3                                                 9 May 2017                                            MYSQLDUMPSLOW(1)

Usage: mysqldumpslow [ OPTS... ] [ LOGS... ]

Parse and summarize the MySQL slow query log. Options are

  --verbose    verbose
  --debug      debug
  --help       write this text to standard output

  -v           verbose
  -d           debug
  -s ORDER     what to sort by (aa, ae, al, ar, at, a, c, e, l, r, t), 'at' is default
                aa: average rows affected
                ae: aggregated rows examined
                al: average lock time
                ar: average rows sent
                at: average query time
                 a: rows affected
                 c: count
                 e: rows examined 
                 l: lock time
                 r: rows sent
                 t: query time  
  -r           reverse the sort order (largest last instead of first)
  -t NUM       just show the top n queries
  -a           don't abstract all numbers to N and strings to 'S'
  -n NUM       abstract numbers with at least n digits within names
  -g PATTERN   grep: only consider stmts that include this string
  -h HOSTNAME  hostname of db server for *-slow.log filename (can be wildcard),
               default is '*', i.e. match all
  -i NAME      name of server instance (if using mysql.server startup script)
  -l           don't subtract lock time from total time