mysqldumpslow - Summarize slow query log files
mysqldumpslow [options] [log_file ...]
MYSQLDUMPSLOW(1) MySQL Database System MYSQLDUMPSLOW(1)
NAME
mysqldumpslow - Summarize slow query log files
SYNOPSIS
mysqldumpslow [options] [log_file ...]
DESCRIPTION
The MySQL slow query log contains information about queries that take a
long time to execute (see Section 5.4.5, "The Slow Query Log").
mysqldumpslow parses MySQL slow query log files and summarizes 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. To modify
value abstracting behavior, use the -a and -n options.
Invoke mysqldumpslow like this:
mysqldumpslow [options] [log_file ...]
Example output with no options given:
Reading mysql slow query log from /usr/local/mysql/data/mysqld57-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
mysqldumpslow supports the following options.
o --help Display a help message and exit.
o -a
Do not abstract all numbers to N and strings to 'S'.
o --debug, -d Run in debug mode.
This option is available only if MySQL was built using WITH_DEBUG.
MySQL release binaries provided by Oracle are not built using this
option.
o -g pattern
Consider only queries that match the (grep-style) pattern.
o -h host_name
Host name of MySQL server for *-slow.log file name. The value can
contain a wildcard. The default is * (match all).
o -i name
Name of server instance (if using mysql.server startup script).
o -l
Do not subtract lock time from total time.
o -n N
Abstract numbers with at least N digits within names.
o -r
Reverse the sort order.
o -s sort_type
How to sort the output. The value of sort_type should be chosen
from the following list:
o t, at: Sort by query time or average query time
o l, al: Sort by lock time or average lock time
o r, ar: Sort by rows sent or average rows sent
o c: Sort by count
By default, mysqldumpslow sorts by average query time (equivalent
to -s at).
o -t N
Display only the first N queries in the output.
o --verbose, -v Verbose mode. Print more information about what the
program does.
COPYRIGHT
Copyright (C) 1997, 2022, Oracle and/or its affiliates.
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/.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+-------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-------------------+
|Availability | database/mysql-57 |
+---------------+-------------------+
|Stability | Uncommitted |
+---------------+-------------------+
SEE ALSO
For more information, please refer to the MySQL Reference Manual, which
may already be installed locally and which is also available online at
http://dev.mysql.com/doc/.
AUTHOR
Oracle Corporation (http://dev.mysql.com/).
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from
https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-
boost-5.7.38.tar.gz.
Further information about this software can be found on the open source
community website at https://dev.mysql.com/.
MySQL 5.7 03/21/2022 MYSQLDUMPSLOW(1)