1MYSQLDUMPSLOW(1)            MariaDB Database System           MYSQLDUMPSLOW(1)
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NAME

6       mysqldumpslow - Summarize slow query log files
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SYNOPSIS

9       mysqldumpslow [options] [log_file ...]
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DESCRIPTION

12       The MariaDB slow query log contains information about queries that take
13       a long time to execute.  mysqldumpslow parses MariaDB slow query log
14       files and prints a summary of their contents.
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16       Normally, mysqldumpslow groups queries that are similar except for the
17       particular values of number and string data values. It “abstracts”
18       these values to N and ´S´ when displaying summary output. The -a and -n
19       options can be used to modify value abstracting behavior.
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21       Invoke mysqldumpslow like this:
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23           shell> mysqldumpslow [options] [log_file ...]
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25       mysqldumpslow supports the following options.
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27       •   --help
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29           Display a help message and exit.
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31       •   -a
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33           Do not abstract all numbers to N and strings to ´S´.
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35       •   --debug, -d
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37           Run in debug mode.
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39       •   -g pattern
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41           Consider only queries that match the (grep-style) pattern.
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43       •   -h host_name
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45           Host name of MariaDB server for *-slow.log file name. The value can
46           contain a wildcard. The default is * (match all).
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48       •   -i name
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50           Name of server instance (if using mysql.server startup script).
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52       •   -l
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54           Do not subtract lock time from total time.
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56       •   -n N
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58           Abstract numbers with at least N digits within names.
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60       •   -r
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62           Reverse the sort order.
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64       •   -s sort_type
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66           How to sort the output. The value of sort_type should be chosen
67           from the following list:
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69           •   t, aa: Sort by rows affected or average rows affected
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71           •   l, ae: Sort by rows examined or aggregate rows examined
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73           •   l, at: Sort by query time or average query time
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75           •   l, al: Sort by lock time or average lock time
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77           •   s, as: Sort by rows sent or average rows sent
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79           •   c: Sort by count
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81       •   -t N
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83           Display only the first N queries in the output.
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85       •   --verbose, -v
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87           Verbose mode. Print more information about what the program does.
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89       Example of usage:
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91           shell> mysqldumpslow
92           Reading mysql slow query log from /usr/local/mysql/data/mysqld51-apple-slow.log
93           Count: 1  Time=4.32s (4s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
94            insert into t2 select * from t1
95           Count: 3  Time=2.53s (7s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
96            insert into t2 select * from t1 limit N
97           Count: 3  Time=2.13s (6s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
98            insert into t1 select * from t1
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101       Copyright 2007-2008 MySQL AB, 2008-2010 Sun Microsystems, Inc.,
102       2010-2019 MariaDB Foundation
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104       This documentation is free software; you can redistribute it and/or
105       modify it only under the terms of the GNU General Public License as
106       published by the Free Software Foundation; version 2 of the License.
107
108       This documentation is distributed in the hope that it will be useful,
109       but WITHOUT ANY WARRANTY; without even the implied warranty of
110       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
111       General Public License for more details.
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113       You should have received a copy of the GNU General Public License along
114       with the program; if not, write to the Free Software Foundation, Inc.,
115       51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA or see
116       http://www.gnu.org/licenses/.
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SEE ALSO

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

124       MariaDB Foundation (http://www.mariadb.org/).
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128MariaDB 10.5                     27 June 2019                 MYSQLDUMPSLOW(1)
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