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Need help for finding and killing sql process

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Top Forums Shell Programming and Scripting Need help for finding and killing sql process
# 1  
Old 05-19-2013
Need help for finding and killing sql process
hi, iam completely new to scripting. this may sound naive but i have spend lot of time figuring this out.

i want to make a script to find number of sql processes running. If the number of processes are more then 200, then pick out process IDs along with query it is executing, which are running from more then 60 seconds and kill them.

this is what I have tried but I am stuck at getting to read the value of count(*).

Code:
for TOTAL in $( mysql -uusername -ppassword information_schema -e "SELECT count(*) as TOTAL FROM processlist")
do
  echo -n "${TOTAL}"

if
[${TOTAL}>=200]

then
for ID in $( mysql -uusername -ppassword information_schema -e "SELECT ID FROM processlist where Info REGEXP 'insert into' AND Command='Query' AND State!='query end' AND TIME >= 60" )


do
  echo -n "Killing thread ${ID}..."
  mysqladmin kill ${ID}
  echo " Done"

done


Please help, I have spend a lot of hours but all in vain..
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mysql_fix_privilege_tables

MYSQL_FIX_PRIVILE(1)					       MySQL Database System					      MYSQL_FIX_PRIVILE(1)

NAME

       mysql_fix_privilege_tables - upgrade MySQL system tables

SYNOPSIS

       mysql_fix_privilege_tables --password=root_password

DESCRIPTION

	   Note
	   In MySQL 5.1.7, mysql_fix_privilege_tables was superseded by mysql_upgrade, which should be used instead. See mysql_upgrade(1).

       Some releases of MySQL introduce changes to the structure of the system tables in the mysql database to add new privileges or support new
       features. When you update to a new version of MySQL, you should update your system tables as well to make sure that their structure is up
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       mysql_fix_privilege_tables is an older script that previously was used to uprade the system tables in the mysql database after a MySQL
       upgrade.

       Before running mysql_fix_privilege_tables, make a backup of your mysql database.

       On Unix or Unix-like systems, update the system tables by running the mysql_fix_privilege_tables script:

	   shell> mysql_fix_privilege_tables

       You must run this script while the server is running. It attempts to connect to the server running on the local host as root. If your root
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       example, if your MySQL installation is located at C:Program FilesMySQLMySQL Server 5.1, the commands look like this:

	   C:> cd "C:Program FilesMySQLMySQL Server 5.1"
	   C:> binmysql -u root -p mysql
	   mysql> SOURCE share/mysql_fix_privilege_tables.sql

	   Note
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       The mysql command will prompt you for the root password; enter it when prompted.

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MySQL 5.1							    04/06/2010						      MYSQL_FIX_PRIVILE(1)