Thank for sharing

ERRATA on my last interaction:

SHOW VARIABLES LIKE ‘key%’ will show you all variables involved in maintain key_buffer_size internal system and SHOW STATUS LIKE ‘key%’ will show you MySQL key_buffer_size status variables what is the snapshot of key_buffer behavior.

Kill 20509 unauthenticated user 89.x.x.x:2501 None Connect Reading from net —

I have already added the skip-name-resolve, skip-host-cache, and skip-locking option to my.cnf. As a added measure I have already added the IP Address to the /etc/hosts and the privileges for the user and IP address has also been granted in the database already.

still problem is there can any abody please help

Please help.

Regards,
benhur

I think that you must fit key_buffer_size memory space with all its tables indexes, as much as you can. SHOW VARIABLES LIKE ‘key%’ will show you all key_buffer_size status variables and than you’ll have an idea as you can proceed to configure key_buffer variable. Attention to a point: increase arbitrarily key_buffer variable will cause bad performance. Study and adjust it better as possible. Max 4GB, ok?

Regards.

Think you

I really need your help on finding the solution for my problems. Fyi, i’m using 2 X quad core processor with 8gb of RAM. This server is a dedicated database server. So, my problems are, the mysql process always use 1 cpu core at 1 time and it used 100% of the cpu resource. I’am not sure why it happen like it. Below are my server ‘TOP’ status, as you can see cpu4 use 100% usage while others like at idle state.

top – 18:27:53 up 103 days, 7:14, 3 users, load average: 1.10, 1.07, 1.02
Tasks: 191 total, 1 running, 190 sleeping, 0 stopped, 0 zombie
Cpu0 : 0.0% us, 0.3% sy, 0.0% ni, 99.7% id, 0.0% wa, 0.0% hi, 0.0% si
Cpu1 : 0.0% us, 0.0% sy, 0.0% ni, 99.3% id, 0.7% wa, 0.0% hi, 0.0% si
Cpu2 : 0.3% us, 0.0% sy, 0.0% ni, 99.7% id, 0.0% wa, 0.0% hi, 0.0% si
Cpu3 : 0.0% us, 0.0% sy, 0.0% ni, 98.6% id, 1.4% wa, 0.0% hi, 0.0% si
Cpu4 : 100.0% us, 0.0% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.0% si
Cpu5 : 0.0% us, 0.0% sy, 0.0% ni, 100.0% id, 0.0% wa, 0.0% hi, 0.0% si
Cpu6 : 0.0% us, 0.0% sy, 0.0% ni, 100.0% id, 0.0% wa, 0.0% hi, 0.0% si
Cpu7 : 0.0% us, 0.0% sy, 0.0% ni, 99.7% id, 0.3% wa, 0.0% hi, 0.0% si
Mem: 8165752k total, 8077196k used, 88556k free, 493192k buffers
Swap: 4096532k total, 276k used, 4096256k free, 6326856k cached

PID USER PR NI %CPU TIME+ %MEM VIRT RES SHR S COMMAND
11395 mysql 16 0 100 39700:41 2.2 706m 172m 4764 S mysqld

Below is my.cnf configuration file

[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
skip-locking
key_buffer = 384M
max_allowed_packet = 1M
table_cache = 512
sort_buffer_size = 2M
read_buffer_size = 2M
read_rnd_buffer_size = 8M
myisam_sort_buffer_size = 64M
thread_cache_size = 8
query_cache_size = 32M
log_queries_not_using_indexes = On
log_slow_queries=/var/lib/mysql/log-slow-queries.log

innodb_data_home_dir = /var/lib/mysql/
#innodb_data_file_path = ibdata1:100M:autoextend
set-variable = innodb_buffer_pool_size=100M
set-variable = innodb_additional_mem_pool_size=10M
innodb_flush_log_at_trx_commit=1

#skip-innodb
skip-name-resolve
# Try number of CPU’s*2 for thread_concurrency
thread_concurrency = 16
set-variable=max_connections=2000

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

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

[isamchk]
key_buffer = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M

[myisamchk]
key_buffer = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M

[mysqlhotcopy]
interactive-timeout