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 5.2.5, \(lqThe Slow Query Log\(rq). mysqldumpslow parses MySQL 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 \(lqabstracts\(rq 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.
o
| o |
--help
Display a help message and exit. |
o
| o |
-a
Do not abstract all numbers to N and strings to 'S'. |
o
| o |
--debug,
-d
Run in debug mode. |
o
| o |
-g pattern
Consider only queries that match the (grep-style) pattern. |
o
| 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
| o |
-i name
Name of server instance (if using mysql.server startup script). |
o
| o |
-l
Do not subtract lock time from total time. |
o
| o |
-n N
Abstract numbers with at least N digits within names. |
o
| o |
-r
Reverse the sort order. |
o
| o |
-s sort_type
How to sort the output. The value of sort_type should be chosen from the following list:
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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 © 1997, 2010, Oracle and/or its affiliates. All rights reserved.
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/.
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/).
