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Calculating number of Connection to MySQL

Terminal - Calculating number of Connection to MySQL
mysql -u root -p -e"show processlist;"|awk '{print $3}'|awk -F":" '{print $1}'|sort|uniq -c
2011-12-22 05:37:36
User: prasadwani
Functions: awk uniq
0
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Calculating number of Connection to MySQL

This command will help you to find how many number of connection are made to given mysql and what are the different hosts connected to it with number of connection they are making.

Show sample output | Add to favourites | Report as malicious

Alternatives

There are 3 alternatives - vote for the best!

Terminal - Alternatives
mysql -u root -p -BNe "select host,count(host) from processlist group by host;" information_schema
2011-12-22 10:35:23
User: flatcap
Tags: mysql
4
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Display the number of connections to a MySQL Database

Count the number of active connections to a MySQL database.

The MySQL command "show processlist" gives a list of all the active clients.

However, by using the processlist table, in the information_schema database, we can sort and count the results within MySQL.

Show sample output | Comments (0) | Add to favourites | Report as malicious
mysql -NBe 'show global status like "Threads_connected";' | cut -f2
2012-01-06 17:23:25
User: Jubal
Functions: cut
Tags: mysql
1
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Calculating number of Connection to MySQL
Comments (0) | Add to favourites | Report as malicious
mysql -u root -p -N -e"show processlist\G;" | egrep "Host\:" | awk -F: '{ print $2 }' | sort | uniq -c
2011-12-22 09:04:07
User: zuck
Functions: awk egrep sort uniq
Tags: mysql
0
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Calculating number of Connection to MySQL
Comments (0) | Add to favourites | Report as malicious

Know a better way?

If you can do better, submit your command here.

What others think

MySQL keeps the number of connections in the Thread_connected status variable; see more here: http://dev.mysql.com/doc/refman/5.0/en/server-status-variables.html#statvar_Threads_connected.

(Even if you really want to count the connections yourself, the use of two awk processes, sort and uniq is rather excessive.)

Comment by Jubal 71 weeks and 6 days ago
mysql -uroot gamification_development -e "show global status;" | grep Connections
Comment by mcandre 4 weeks and 1 day ago
mysql -u root -e "show global status like 'connections';"
Comment by mcandre 4 weeks and 1 day ago
mysql -u root -e "SHOW STATUS LIKE '%conn%';"
Comment by mcandre 4 weeks and 1 day ago

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