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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, 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 02110-1301 USA or see
   http://www.gnu.org/licenses/.

AUTHOR

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

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