1MARIADB-DUMPSLOW(1)         MariaDB Database System        MARIADB-DUMPSLOW(1)
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NAME

6       mariadb-dumpslow - Summarize slow query log files (mysqldumpslow is now
7       a symlink to mariadb-dumpslow)
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SYNOPSIS

10       mysqldumpslow [options] [log_file ...]
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DESCRIPTION

13       The MariaDB slow query log contains information about queries that take
14       a long time to execute.  mysqldumpslow parses MariaDB slow query log
15       files and prints a summary of their contents.
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17       Normally, mysqldumpslow groups queries that are similar except for the
18       particular values of number and string data values. It “abstracts”
19       these values to N and ´S´ when displaying summary output. The -a and -n
20       options can be used to modify value abstracting behavior.
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22       Invoke mysqldumpslow like this:
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24           shell> mysqldumpslow [options] [log_file ...]
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26       mysqldumpslow supports the following options.
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28       •   --help
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30           Display a help message and exit.
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32       •   -a
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34           Do not abstract all numbers to N and strings to ´S´.
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36       •   --debug, -d
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38           Run in debug mode.
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40       •   -g pattern
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42           Consider only queries that match the (grep-style) pattern.
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44       •   -h host_name
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46           Host name of MariaDB server for *-slow.log file name. The value can
47           contain a wildcard. The default is * (match all).
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49       •   -i name
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51           Name of server instance (if using mysql.server startup script).
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53       •   -l
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55           Do not subtract lock time from total time.
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57       •   -n N
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59           Abstract numbers with at least N digits within names.
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61       •   -r
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63           Reverse the sort order.
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65       •   -s sort_type
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67           How to sort the output. The value of sort_type should be chosen
68           from the following list:
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70           •   t, aa: Sort by rows affected or average rows affected
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72           •   l, ae: Sort by rows examined or aggregate rows examined
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74           •   l, at: Sort by query time or average query time
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76           •   l, al: Sort by lock time or average lock time
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78           •   s, as: Sort by rows sent or average rows sent
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80           •   c: Sort by count
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82       •   -t N
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84           Display only the first N queries in the output.
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86       •   --verbose, -v
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88           Verbose mode. Print more information about what the program does.
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90       Example of usage:
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92           shell> mysqldumpslow
93           Reading mysql slow query log from /usr/local/mysql/data/mysqld51-apple-slow.log
94           Count: 1  Time=4.32s (4s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
95            insert into t2 select * from t1
96           Count: 3  Time=2.53s (7s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
97            insert into t2 select * from t1 limit N
98           Count: 3  Time=2.13s (6s)  Lock=0.00s (0s)  Rows=0.0 (0), root[root]@localhost
99            insert into t1 select * from t1
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102       Copyright 2007-2008 MySQL AB, 2008-2010 Sun Microsystems, Inc.,
103       2010-2019 MariaDB Foundation
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105       This documentation is free software; you can redistribute it and/or
106       modify it only under the terms of the GNU General Public License as
107       published by the Free Software Foundation; version 2 of the License.
108
109       This documentation is distributed in the hope that it will be useful,
110       but WITHOUT ANY WARRANTY; without even the implied warranty of
111       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
112       General Public License for more details.
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114       You should have received a copy of the GNU General Public License along
115       with the program; if not, write to the Free Software Foundation, Inc.,
116       51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA or see
117       http://www.gnu.org/licenses/.
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119

SEE ALSO

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

125       MariaDB Foundation (http://www.mariadb.org/).
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129MariaDB 10.5                     27 June 2019              MARIADB-DUMPSLOW(1)
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