my.cnf for MySQL 5.5 on CentOS 5.5 recomandations

[Roni Alboim]

I have a dedicated server for MySQL with 12 core 32GB mem 10TB RAID-10 disk space, mainly inserts with few batch jobs once a day and I need to configure it, I came up with the following my.cnf:

[client]
password = [passwd]
port = 3306
socket = /var/lib/mysql/mysql.sock

datadir = /storage/mysql/data


[mysqld]
# innodb_force_recovery = 6
# innodb_rollback_on_timeout

event_scheduler = ON

skip-character-set-client-handshake
collation_server = utf8_unicode_ci
character_set_server = utf8

port = 3306
socket = /var/lib/mysql/mysql.sock
back_log = 50
max_connections = 2000
max_connect_errors = 4294967295
table_open_cache = 2048
max_allowed_packet = 32M
binlog_cache_size = 1M
max_heap_table_size = 64M
read_buffer_size = 4M
read_rnd_buffer_size = 16M
sort_buffer_size = 50M # Roni: 8M
join_buffer_size = 8M
thread_cache_size = 8
thread_concurrency = 24
query_cache_size = 64M
query_cache_limit = 2M
ft_min_word_len = 4
#memlock
default-storage-engine = MYISAM
thread_stack = 192K
transaction_isolation = REPEATABLE-READ
tmp_table_size = 64M
log-bin =mysql-bin
binlog_format =mixed
#log_slave_updates
#log
#log_warnings
slow_query_log
long_query_time = 100

lower_case_table_names = 1

#Time Outs
interactive_timeout =100
wait_timeout =100
connect_timeout =60

#*** MyISAM Specific options

key_buffer_size = 32M
bulk_insert_buffer_size = 64M
myisam_sort_buffer_size = 128M
myisam_max_sort_file_size = 10G
myisam_repair_threads = 1
myisam_recover


#skip-innodb

tmpdir =/storage/mysql/tmpdir

innodb_data_home_dir =/storage/mysql/data
innodb_log_group_home_dir =/storage/mysql

innodb_additional_mem_pool_size = 32M
innodb_buffer_pool_size = 8G
#innodb_data_file_path = ibdata1:10M:autoextend
innodb_data_home_dir = /storage/mysql/data
innodb_write_io_threads = 8
innodb_read_io_threads = 8
#innodb_force_recovery = 1
innodb_thread_concurrency = 16
innodb_flush_log_at_trx_commit = 2 # Roni: 1
#innodb_fast_shutdown
innodb_log_buffer_size = 20M # Roni: 8M
innodb_log_file_size = 1G # Roni: 256M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
innodb_flush_method = O_DIRECT # Roni: O_DSYNC
innodb_lock_wait_timeout = 120
innodb_file_per_table

[mysqldump]
quick
max_allowed_packet = 16M

[mysql]
no-auto-rehash

#safe-updates

[myisamchk]
key_buffer_size = 512M
sort_buffer_size = 512M
read_buffer = 64M # Roni: 8M
write_buffer = 64M # Roni: 8M

[mysqlhotcopy]
interactive-timeout

[mysqld_safe]
open-files-limit = 8192

any suggestions?

TX,

Roni