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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 5.2.5, “The Slow Query Log”).
       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 “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 MySQL server for *-slow.log file name. The value can
	   contain a wildcare. 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.

       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
       Sun Microsystems, Inc. (http://www.mysql.com/).

MySQL 5.1			  04/06/2010		      MYSQLDUMPSLOW(1)
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