NAME

oak-kill-slow-queries: terminate long running queries

SYNOPSIS

Kill queries running longer than 60 seconds:

oak-kill-slow-queries –slow-query-seconds=60

Kill queries running longer than 60 seconds provided they’re not invoked by user ‘root’:

oak-kill-slow-queries –slow-query-seconds=60 –skip-root

Kill queries running longer than 60 seconds provided they’re not invoked by user ‘myuser’:

oak-kill-slow-queries –slow-query-seconds=60 –skip-user=myuser

Kill any query running longer than 60 seconds and which was invoked by user ‘myuser’

oak-kill-slow-queries –slow-query-seconds=60 –filter-user=myuser

Same as above; doesn’t perform the KILL, just prints out the statement:

oak-kill-slow-queries –slow-query-seconds=60 –filter-user=myuser –print-only

Same as above, short form; verbose:

oak-kill-slow-queries -l 60 -f myuser –print-only -v

Same as above, provide connection parameters, prompt for password:

oak-kill-slow-queries –user=root –ask-pass –socket=/tmp/mysql.sock -l 60 -f myuser

Same as above, use defaults file:

oak-kill-slow-queries –defaults-file=/home/myuser/.my-oak.cnf -l 10 -f myuser

DESCRIPTION

Terminate long running queries: this utility can terminate queries based on running time and invoking user. It utilizes MySQL’s KILL QUERY command, which requires the SUPER privilege.

Queries can be terminated per given user, or can be skipped per given user. Only the queries get killed, the connections itself is not affected. Expect exceptions/errors on your client when the queries are killed.

OPTIONS

–ask-pass

Prompt for password.

–defaults-file=DEFAULTS_FILE

Read from MySQL configuration file. Overrides –user, –password, –socket, –port.

Configuration needs to be in the following format:

[client]
user=my_user
password=my_pass
socket=/tmp/mysql.sock
port=3306

-f FILTER_USER, –filter-user=FILTER_USER

Only kill queries by by given user. Do not kill queries by other users

-H HOST, –host=HOST

MySQL host (default: localhost)

-l SLOW_QUERY_SECONDS, –slow-query-seconds=SLOW_QUERY_SECONDS

Number of seconds after which a query is considered slow

-k SKIP_USER, –skip-user=SKIP_USER

Do not kill queries invoked by given user

-p PASSWORD, –password=PASSWORD

MySQL password

-P PORT, –port=PORT

TCP/IP port (default: 3306)

–print-only

Do not execute. Only print statement

-r, –skip-root

Do not kill queries by ‘root’ (same as –skip-user=root)

-S SOCKET, –socket=SOCKET

MySQL socket file. Only applies when host is localhost

-u USER, –user=USER

MySQL user

-v, –verbose

Print user friendly messages

ENVIRONMENT

Requires MySQL 5.0 or newer, python 2.3 or newer.

python-mysqldb must be installed in order to use this tool. You can

apt-get install python-mysqldb

or

yum install mysql-python

SEE ALSO

LICENSE

This tool is released under the BSD license.

Copyright (c) 2008, Shlomi Noach
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
* Neither the name of the organization nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

AUTHOR

Shlomi Noach