Comments on: What to tune in MySQL Server after installation

By: aftab

aftab — Wed, 14 Oct 2009 02:17:57 +0000

im running my chat server at centos with 3.5 gb ram , i observered there are round about 100 queries per second can you please guess some important parameteres and their values for my server that can increase speed of mysql .. currently it is going slower and slower as the users increasing

By: john

john — Wed, 07 Oct 2009 19:51:11 +0000

http://blog.taragana.com/index.php/archive/one-mysql-configuration-tip-that-can-dramatically-improve-mysql-performance/

try this

max_write_lock_count = 1

By: Wagner Bianchi

Wagner Bianchi — Thu, 10 Sep 2009 02:26:05 +0000

D’you consider “misc” like what, when treat about the functions of innodb_additional_mem_pool_size? I’ve used this variable to tune server to alocate dictionary cache…is this true?

By: MySQL Newbie

MySQL Newbie — Thu, 02 Jul 2009 19:14:18 +0000

Thanks Kuber !

By: Kuber Shrestha

Kuber Shrestha — Wed, 01 Jul 2009 07:37:00 +0000

These are mysql configuration and it is found in my.ini or my.cnf which is the base of mysql configuration.
in linux you can view this file in this location
/etc/my.cnf

By: MySQL Newbie

MySQL Newbie — Tue, 30 Jun 2009 18:32:40 +0000

Kuber,
If I may ask you a basic question please ?
How do you get these stats ? I mean from where ? (I am a newbie-:)

Hope some expert helps you with your question !

Regards,

By: Kuber Shrestha

Kuber Shrestha — Tue, 30 Jun 2009 05:16:22 +0000

Please Anyone suggest me how to increase the performance of my MYSQL server. Day by day the number of slow queries are increasing on!….

Threads: 1 Questions: 10163302 Slow queries: 149 Opens: 149457 Flush tables: 1 Open tables: 64 Queries per second avg: 1.615

max_connections=255
query_cache_size=8M
table_cache=510
tmp_table_size=13M
thread_cache_size=12
myisam_max_sort_file_size=100G
myisam_max_extra_sort_file_size=100G
myisam_sort_buffer_size=8M
key_buffer_size=64M
read_buffer_size=1M
read_rnd_buffer_size=1M
sort_buffer_size=203K
innodb_additional_mem_pool_size=2M
innodb_flush_log_at_trx_commit=1
innodb_log_buffer_size=1M
innodb_buffer_pool_size=200M
innodb_log_file_size=10M
innodb_thread_concurrency=8

By: MySQL Newbie

MySQL Newbie — Mon, 29 Jun 2009 21:49:40 +0000

For example, I found this link on google http://www.mysql.com/why-mysql/performance/
But it has so many articles and documents within and so was not sure what would be the right start and best bet from a time line perspective.

Thanks again !

By: MySQL Newbie

MySQL Newbie — Mon, 29 Jun 2009 21:43:43 +0000

Hi Peter,

These tips definately sound great from the number of responses that you have got ! I am not really a DBA but have been using oracle for 8+ years now, I am more of a BI engineer who knows to use SQL and write fairly complex queries.
I am very intrested in learning MySQL and perfromance tunning in MySQL from a reporting standpoint, ie to optimise the database (datawarehouse) for reporting.
Would you be kind enough to provide me with a starting point ? some website which starts with the basics of tunning ? (once again I am not a DBA but am a BI engineer)

(I am able to google and get way too many links and get easily lost -:)

Thanks in Advance !

By: kuber shrestha

kuber shrestha — Mon, 22 Jun 2009 08:35:19 +0000

I am using Mysql server version 4.1.20
and i in my server there are almost 10 databases but 2 databases running frequently. One has 40 tables and other has 120 tables. and they contains 133478 rows in each table.

Mysql configuration is as follows:::

[root@crm ~]$ vi /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1

[mysql.server]
user=mysql
basedir=/var/lib

[mysqld_safe]
err-log=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

My Problem is that, day by day i see that the number of slow queries is increasing on.

mysql> \s
————–
mysql Ver 14.7 Distrib 4.1.20, for redhat-linux-gnu (i686) using readline 4.3

Connection id: 303745
Current database: office_new
Current user: root@localhost
SSL: Not in use
Current pager: stdout
Using outfile: ”
Using delimiter: ;
Server version: 4.1.20
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: latin1
Db characterset: latin1
Client characterset: latin1
Conn. characterset: latin1
UNIX socket: /var/lib/mysql/mysql.sock
Uptime: 72 days 19 hours 45 min 58 sec

Threads: 1 Questions: 10163302 Slow queries: 149 Opens: 149457 Flush tables: 1 Open tables: 64 Queries per second avg: 1.615
————–

Please suggest me how to increase the performance of my server???? There are almost 20-30 user’s online each time.

Please suggest me

My email address is kuberstha@subisu.net.np