optimize mysql
am 12.01.2010 16:35:33 von madunix
I need your recommendation, I have the following config file need to
be optimized, can any one recommend any modification on this file,
lately mysql went slow with update procedure
# Example MySQL config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MySQL plays
# an important part, or systems up to 128M where MySQL is used together with
# other programs (such as a web server)
#
# You can copy this file to
# /etc/my.cnf to set global options,
# mysql-data-dir/my.cnf to set server-specific options (in this
# installation this directory is /var/lib/mysql) or
# ~/.my.cnf to set user-specific options.
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.
# The following options will be passed to all MySQL clients
[client]
#password = your_password
port = 3306
socket = /var/lib/mysql/mysql.sock
# Here follows entries for some specific programs
# The MySQL server
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
skip-locking
key_buffer = 16M
max_allowed_packet = 1M
table_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
############################Added by ashakhshir for logging##################
#long_query_time=5
#log-slow-queries=/var/log/slowQueryLog.log
#log-queries-not-using-indexes
############################################################ ###############
# Don't listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the "enable-named-pipe" option) will render mysqld useless!
#
#skip-networking
# Replication Master Server (default)
# binary logging is required for replication
log-bin
# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
server-id = 1
# Replication Slave (comment out master section to use this)
#
# To configure this host as a replication slave, you can choose between
# two methods :
#
# 1) Use the CHANGE MASTER TO command (fully described in our manual) -
# the syntax is:
#
# CHANGE MASTER TO MASTER_HOST=, MASTER_PORT=,
# MASTER_USER=, MASTER_PASSWORD= ;
#
# where you replace , , by quoted strings and
# by the master's port number (3306 by default).
#
# Example:
#
# CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
# MASTER_USER='joe', MASTER_PASSWORD='secret';
#
# OR
#
# 2) Set the variables below. However, in case you choose this method, then
# start replication for the first time (even unsuccessfully, for example
# if you mistyped the password in master-password and the slave fails to
# connect), the slave will create a master.info file, and any later
# change in this file to the variables' values below will be ignored and
# overridden by the content of the master.info file, unless you shutdown
# the slave server, delete master.info and restart the slaver server.
# For that reason, you may want to leave the lines below untouched
# (commented) and instead use CHANGE MASTER TO (see above)
#
# required unique id between 2 and 2^32 - 1
# (and different from the master)
# defaults to 2 if master-host is set
# but will not function as a slave if omitted
#server-id = 2
#
# The replication master for this slave - required
#master-host =
#
# The username the slave will use for authentication when connecting
# to the master - required
#master-user =
#
# The password the slave will authenticate with when connecting to
# the master - required
#master-password =
#
# The port the master is listening on.
# optional - defaults to 3306
#master-port =
#
# binary logging - not required for slaves, but recommended
#log-bin
# Point the following paths to different dedicated disks
#tmpdir = /tmp/
#log-update = /path-to-dedicated-directory/hostname
# Uncomment the following if you are using BDB tables
#bdb_cache_size = 4M
#bdb_max_lock = 10000
# Uncomment the following if you are using InnoDB tables
#innodb_data_home_dir = /var/lib/mysql/
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = /var/lib/mysql/
#innodb_log_arch_dir = /var/lib/mysql/
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
#innodb_buffer_pool_size = 16M
#innodb_additional_mem_pool_size = 2M
# Set .._log_file_size to 25 % of buffer pool size
#innodb_log_file_size = 5M
#innodb_log_buffer_size = 8M
#innodb_flush_log_at_trx_commit = 1
#innodb_lock_wait_timeout = 50
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates
[isamchk]
key_buffer = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M
[myisamchk]
key_buffer = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
the hardware config :
#uname
Linux 2.6.12-1.1381_FC3smp #1 SMP
#cat /proc/meminfo
MemTotal: 2074720 kB
MemFree: 90720 kB
Buffers: 132028 kB
Cached: 1529892 kB
SwapCached: 0 kB
Active: 1493560 kB
Inactive: 315772 kB
HighTotal: 1179392 kB
HighFree: 4712 kB
LowTotal: 895328 kB
LowFree: 86008 kB
SwapTotal: 4096564 kB
SwapFree: 4096388 kB
Dirty: 1068 kB
Writeback: 0 kB
Mapped: 160488 kB
Slab: 157484 kB
CommitLimit: 5133924 kB
Committed_AS: 244964 kB
PageTables: 2392 kB
VmallocTotal: 114680 kB
VmallocUsed: 3928 kB
VmallocChunk: 110140 kB
HugePages_Total: 0
HugePages_Free: 0
Hugepagesize: 2048 kB
#cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 1
cpu MHz : 3192.527
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
fdiv_bug : no
# free
total used free shared buffers cached
Mem: 2074720 2003292 71428 0 132028 1530672
-/+ buffers/cache: 340592 1734128
Swap: 4096564 176 4096388
Thanks
--
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe: http://lists.mysql.com/mysql?unsub=gcdmg-mysql-2@m.gmane.org
Re: optimize mysql
am 12.01.2010 17:15:25 von mos
Some other info you can post to the list to help us zero in on the problem:
1) What is the SQL used to update the tables
2) What is the table structure? "Show Create Table mytablex"
3) How long does it take for how many rows?
4) How busy is the CPU when the updates are occuring?
5) Show Status -- After updates have completed
6) Show Variables
Mike
At 09:35 AM 1/12/2010, madunix wrote:
>I need your recommendation, I have the following config file need to
>be optimized, can any one recommend any modification on this file,
>lately mysql went slow with update procedure
>
># Example MySQL config file for medium systems.
>#
># This is for a system with little memory (32M - 64M) where MySQL plays
># an important part, or systems up to 128M where MySQL is used together with
># other programs (such as a web server)
>#
># You can copy this file to
># /etc/my.cnf to set global options,
># mysql-data-dir/my.cnf to set server-specific options (in this
># installation this directory is /var/lib/mysql) or
># ~/.my.cnf to set user-specific options.
>#
># In this file, you can use all long options that a program supports.
># If you want to know which options a program supports, run the program
># with the "--help" option.
>
># The following options will be passed to all MySQL clients
>[client]
>#password = your_password
>port = 3306
>socket = /var/lib/mysql/mysql.sock
>
># Here follows entries for some specific programs
>
># The MySQL server
>[mysqld]
>port = 3306
>socket = /var/lib/mysql/mysql.sock
>skip-locking
>key_buffer = 16M
>max_allowed_packet = 1M
>table_cache = 64
>sort_buffer_size = 512K
>net_buffer_length = 8K
>read_buffer_size = 256K
>read_rnd_buffer_size = 512K
>myisam_sort_buffer_size = 8M
>############################Added by ashakhshir for logging##################
>#long_query_time=5
>#log-slow-queries=/var/log/slowQueryLog.log
>#log-queries-not-using-indexes
>########################################################### ################
>
># Don't listen on a TCP/IP port at all. This can be a security enhancement,
># if all processes that need to connect to mysqld run on the same host.
># All interaction with mysqld must be made via Unix sockets or named pipes.
># Note that using this option without enabling named pipes on Windows
># (via the "enable-named-pipe" option) will render mysqld useless!
>#
>#skip-networking
>
># Replication Master Server (default)
># binary logging is required for replication
>log-bin
>
># required unique id between 1 and 2^32 - 1
># defaults to 1 if master-host is not set
># but will not function as a master if omitted
>server-id = 1
>
># Replication Slave (comment out master section to use this)
>#
># To configure this host as a replication slave, you can choose between
># two methods :
>#
># 1) Use the CHANGE MASTER TO command (fully described in our manual) -
># the syntax is:
>#
># CHANGE MASTER TO MASTER_HOST=, MASTER_PORT=,
># MASTER_USER=, MASTER_PASSWORD= ;
>#
># where you replace , , by quoted strings and
># by the master's port number (3306 by default).
>#
># Example:
>#
># CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
># MASTER_USER='joe', MASTER_PASSWORD='secret';
>#
># OR
>#
># 2) Set the variables below. However, in case you choose this method, then
># start replication for the first time (even unsuccessfully, for example
># if you mistyped the password in master-password and the slave fails to
># connect), the slave will create a master.info file, and any later
># change in this file to the variables' values below will be ignored and
># overridden by the content of the master.info file, unless you shutdown
># the slave server, delete master.info and restart the slaver server.
># For that reason, you may want to leave the lines below untouched
># (commented) and instead use CHANGE MASTER TO (see above)
>#
># required unique id between 2 and 2^32 - 1
># (and different from the master)
># defaults to 2 if master-host is set
># but will not function as a slave if omitted
>#server-id = 2
>#
># The replication master for this slave - required
>#master-host =
>#
># The username the slave will use for authentication when connecting
># to the master - required
>#master-user =
>#
># The password the slave will authenticate with when connecting to
># the master - required
>#master-password =
>#
># The port the master is listening on.
># optional - defaults to 3306
>#master-port =
>#
># binary logging - not required for slaves, but recommended
>#log-bin
>
># Point the following paths to different dedicated disks
>#tmpdir = /tmp/
>#log-update = /path-to-dedicated-directory/hostname
>
># Uncomment the following if you are using BDB tables
>#bdb_cache_size = 4M
>#bdb_max_lock = 10000
>
># Uncomment the following if you are using InnoDB tables
>#innodb_data_home_dir = /var/lib/mysql/
>#innodb_data_file_path = ibdata1:10M:autoextend
>#innodb_log_group_home_dir = /var/lib/mysql/
>#innodb_log_arch_dir = /var/lib/mysql/
># You can set .._buffer_pool_size up to 50 - 80 %
># of RAM but beware of setting memory usage too high
>#innodb_buffer_pool_size = 16M
>#innodb_additional_mem_pool_size = 2M
># Set .._log_file_size to 25 % of buffer pool size
>#innodb_log_file_size = 5M
>#innodb_log_buffer_size = 8M
>#innodb_flush_log_at_trx_commit = 1
>#innodb_lock_wait_timeout = 50
>
>[mysqldump]
>quick
>max_allowed_packet = 16M
>
>[mysql]
>no-auto-rehash
># Remove the next comment character if you are not familiar with SQL
>#safe-updates
>
>[isamchk]
>key_buffer = 20M
>sort_buffer_size = 20M
>read_buffer = 2M
>write_buffer = 2M
>
>[myisamchk]
>key_buffer = 20M
>sort_buffer_size = 20M
>read_buffer = 2M
>write_buffer = 2M
>
>[mysqlhotcopy]
>interactive-timeout
>
>
>
>
>the hardware config :
>#uname
>Linux 2.6.12-1.1381_FC3smp #1 SMP
>
>#cat /proc/meminfo
>MemTotal: 2074720 kB
>MemFree: 90720 kB
>Buffers: 132028 kB
>Cached: 1529892 kB
>SwapCached: 0 kB
>Active: 1493560 kB
>Inactive: 315772 kB
>HighTotal: 1179392 kB
>HighFree: 4712 kB
>LowTotal: 895328 kB
>LowFree: 86008 kB
>SwapTotal: 4096564 kB
>SwapFree: 4096388 kB
>Dirty: 1068 kB
>Writeback: 0 kB
>Mapped: 160488 kB
>Slab: 157484 kB
>CommitLimit: 5133924 kB
>Committed_AS: 244964 kB
>PageTables: 2392 kB
>VmallocTotal: 114680 kB
>VmallocUsed: 3928 kB
>VmallocChunk: 110140 kB
>HugePages_Total: 0
>HugePages_Free: 0
>Hugepagesize: 2048 kB
>
>#cat /proc/cpuinfo
>processor : 0
>vendor_id : GenuineIntel
>cpu family : 15
>model : 4
>model name : Intel(R) Xeon(TM) CPU 3.20GHz
>stepping : 1
>cpu MHz : 3192.527
>cache size : 1024 KB
>physical id : 0
>siblings : 2
>core id : 0
>cpu cores : 1
>fdiv_bug : no
>
>
># free
>total used free shared buffers cached
>Mem: 2074720 2003292 71428 0 132028 1530672
>-/+ buffers/cache: 340592 1734128
>Swap: 4096564 176 4096388
>
>Thanks
>
>--
>MySQL General Mailing List
>For list archives: http://lists.mysql.com/mysql
>To unsubscribe: http://lists.mysql.com/mysql?unsub=mos99@fastmail.fm
--
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe: http://lists.mysql.com/mysql?unsub=gcdmg-mysql-2@m.gmane.org
Re: optimize mysql
am 14.01.2010 18:53:36 von madunix
its a linux server fedora with 2GB ram, insert mostly used through the
update, no load or on cpu during that time
mysql> show status;
+----------------------------+------------+
| Variable_name | Value |
+----------------------------+------------+
| Aborted_clients | 16 |
| Aborted_connects | 7 |
| Binlog_cache_disk_use | 1 |
| Binlog_cache_use | 1 |
| Bytes_received | 327786682 |
| Bytes_sent | 2078650970 |
| Com_admin_commands | 9725 |
| Com_alter_db | 0 |
| Com_alter_table | 0 |
| Com_analyze | 0 |
| Com_backup_table | 0 |
| Com_begin | 0 |
| Com_change_db | 65467 |
| Com_change_master | 0 |
| Com_check | 0 |
| Com_checksum | 0 |
| Com_commit | 1 |
| Com_create_db | 0 |
| Com_create_function | 0 |
| Com_create_index | 0 |
| Com_create_table | 0 |
| Com_dealloc_sql | 0 |
| Com_delete | 41271 |
| Com_delete_multi | 0 |
| Com_do | 0 |
| Com_drop_db | 0 |
| Com_drop_function | 0 |
| Com_drop_index | 0 |
| Com_drop_table | 0 |
| Com_drop_user | 0 |
| Com_execute_sql | 0 |
| Com_flush | 0 |
| Com_grant | 0 |
| Com_ha_close | 0 |
| Com_ha_open | 0 |
| Com_ha_read | 0 |
| Com_help | 0 |
| Com_insert | 42096 |
| Com_insert_select | 36 |
| Com_kill | 0 |
| Com_load | 0 |
| Com_load_master_data | 0 |
| Com_load_master_table | 0 |
| Com_lock_tables | 6 |
| Com_optimize | 0 |
| Com_preload_keys | 0 |
| Com_prepare_sql | 0 |
| Com_purge | 0 |
| Com_purge_before_date | 0 |
| Com_rename_table | 0 |
| Com_repair | 0 |
| Com_replace | 0 |
| Com_replace_select | 0 |
| Com_reset | 0 |
| Com_restore_table | 0 |
| Com_revoke | 0 |
| Com_revoke_all | 0 |
| Com_rollback | 0 |
| Com_savepoint | 0 |
| Com_select | 2597515 |
| Com_set_option | 625 |
| Com_show_binlog_events | 0 |
| Com_show_binlogs | 0 |
| Com_show_charsets | 1 |
| Com_show_collations | 0 |
| Com_show_column_types | 0 |
| Com_show_create_db | 9 |
| Com_show_create_table | 818 |
| Com_show_databases | 3 |
| Com_show_errors | 0 |
| Com_show_fields | 482 |
| Com_show_grants | 0 |
| Com_show_innodb_status | 8386 |
| Com_show_keys | 0 |
| Com_show_logs | 0 |
| Com_show_master_status | 3 |
| Com_show_new_master | 0 |
| Com_show_open_tables | 0 |
| Com_show_privileges | 0 |
| Com_show_processlist | 2 |
| Com_show_slave_hosts | 3 |
| Com_show_slave_status | 0 |
| Com_show_status | 8385 |
| Com_show_storage_engines | 0 |
| Com_show_tables | 493 |
| Com_show_variables | 19 |
| Com_show_warnings | 0 |
| Com_slave_start | 0 |
| Com_slave_stop | 0 |
| Com_stmt_prepare | 0 |
| Com_stmt_execute | 0 |
| Com_stmt_send_long_data | 0 |
| Com_stmt_reset | 0 |
| Com_stmt_close | 0 |
| Com_truncate | 0 |
| Com_unlock_tables | 6 |
| Com_update | 30723 |
| Com_update_multi | 0 |
| Connections | 65423 |
| Created_tmp_disk_tables | 2027 |
| Created_tmp_files | 431 |
| Created_tmp_tables | 647863 |
| Delayed_errors | 0 |
| Delayed_insert_threads | 0 |
| Delayed_writes | 0 |
| Flush_commands | 1 |
| Handler_commit | 4 |
| Handler_delete | 12585 |
| Handler_discover | 0 |
| Handler_read_first | 6257964 |
| Handler_read_key | 36366165 |
| Handler_read_next | 574201726 |
| Handler_read_prev | 47151 |
| Handler_read_rnd | 5037081 |
| Handler_read_rnd_next | 2842816956 |
| Handler_rollback | 53758 |
| Handler_update | 309674 |
| Handler_write | 311112976 |
| Key_blocks_not_flushed | 0 |
| Key_blocks_unused | 10532 |
| Key_blocks_used | 4170 |
| Key_read_requests | 5615280 |
| Key_reads | 6087 |
| Key_write_requests | 68041 |
| Key_writes | 47094 |
| Max_used_connections | 25 |
| Not_flushed_delayed_rows | 0 |
| Open_files | 685 |
| Open_streams | 0 |
| Open_tables | 512 |
| Opened_tables | 762 |
| Qcache_free_blocks | 0 |
| Qcache_free_memory | 0 |
| Qcache_hits | 0 |
| Qcache_inserts | 0 |
| Qcache_lowmem_prunes | 0 |
| Qcache_not_cached | 0 |
| Qcache_queries_in_cache | 0 |
| Qcache_total_blocks | 0 |
| Questions | 2864857 |
| Rpl_status | NULL |
| Select_full_join | 4241 |
| Select_full_range_join | 0 |
| Select_range | 3206 |
| Select_range_check | 0 |
| Select_scan | 1331873 |
| Slave_open_temp_tables | 0 |
| Slave_running | OFF |
| Slave_retried_transactions | 0 |
| Slow_launch_threads | 0 |
| Slow_queries | 51 |
| Sort_merge_passes | 0 |
| Sort_range | 130473 |
| Sort_rows | 5904253 |
| Sort_scan | 788547 |
| Table_locks_immediate | 2946519 |
| Table_locks_waited | 236 |
| Threads_cached | 0 |
| Threads_connected | 1 |
| Threads_created | 65422 |
| Threads_running | 1 |
| Uptime | 84823 |
+----------------------------+------------+
162 rows in set (0.00 sec)
mysql>
mysql> show variables;
+---------------------------------+------------------------- -----------------+
| Variable_name | Value |
+---------------------------------+------------------------- -----------------+
| back_log | 50 |
| basedir | / |
| binlog_cache_size | 32768 |
| bulk_insert_buffer_size | 8388608 |
| character_set_client | latin1 |
| character_set_connection | latin1 |
| character_set_database | latin1 |
| character_set_results | latin1 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
| collation_connection | latin1_swedish_ci |
| collation_database | latin1_swedish_ci |
| collation_server | latin1_swedish_ci |
| concurrent_insert | ON |
| connect_timeout | 5 |
| datadir | /var/lib/mysql/ |
| date_format | %Y-%m-%d |
| datetime_format | %Y-%m-%d %H:%i:%s |
| default_week_format | 0 |
| delay_key_write | ON |
| delayed_insert_limit | 100 |
| delayed_insert_timeout | 300 |
| delayed_queue_size | 1000 |
| expire_logs_days | 0 |
| flush | OFF |
| flush_time | 0 |
| ft_boolean_syntax | + -><()~*:""&| |
| ft_max_word_len | 84 |
| ft_min_word_len | 4 |
| ft_query_expansion_limit | 20 |
| ft_stopword_file | (built-in) |
| group_concat_max_len | 1024 |
| have_archive | NO |
| have_bdb | NO |
| have_blackhole_engine | NO |
| have_compress | YES |
| have_crypt | YES |
| have_csv | NO |
| have_example_engine | NO |
| have_geometry | YES |
| have_innodb | YES |
| have_isam | NO |
| have_ndbcluster | NO |
| have_openssl | NO |
| have_query_cache | YES |
| have_raid | NO |
| have_rtree_keys | YES |
| have_symlink | YES |
| init_connect | |
| init_file | |
| init_slave | |
| innodb_additional_mem_pool_size | 1048576 |
| innodb_autoextend_increment | 8 |
| innodb_buffer_pool_awe_mem_mb | 0 |
| innodb_buffer_pool_size | 8388608 |
| innodb_data_file_path | ibdata1:10M:autoextend |
| innodb_data_home_dir | |
| innodb_fast_shutdown | ON |
| innodb_file_io_threads | 4 |
| innodb_file_per_table | OFF |
| innodb_flush_log_at_trx_commit | 1 |
| innodb_flush_method | |
| innodb_force_recovery | 0 |
| innodb_lock_wait_timeout | 50 |
| innodb_locks_unsafe_for_binlog | OFF |
| innodb_log_arch_dir | |
| innodb_log_archive | OFF |
| innodb_log_buffer_size | 1048576 |
| innodb_log_file_size | 5242880 |
| innodb_log_files_in_group | 2 |
| innodb_log_group_home_dir | ./ |
| innodb_max_dirty_pages_pct | 90 |
| innodb_max_purge_lag | 0 |
| innodb_mirrored_log_groups | 1 |
| innodb_open_files | 300 |
| innodb_table_locks | ON |
| innodb_thread_concurrency | 8 |
| interactive_timeout | 28800 |
| join_buffer_size | 131072 |
| key_buffer_size | 16777216 |
| key_cache_age_threshold | 300 |
| key_cache_block_size | 1024 |
| key_cache_division_limit | 100 |
| language | /usr/share/mysql/english/ |
| large_files_support | ON |
| license | GPL |
| local_infile | ON |
| locked_in_memory | OFF |
| log | OFF |
| log_bin | ON |
| log_error | |
| log_slave_updates | OFF |
| log_slow_queries | ON |
| log_update | OFF |
| log_warnings | 1 |
| long_query_time | 4 |
| low_priority_updates | OFF |
| lower_case_file_system | OFF |
| lower_case_table_names | 0 |
| max_allowed_packet | 1047552 |
| max_binlog_cache_size | 4294967295 |
| max_binlog_size | 1073741824 |
| max_connect_errors | 10 |
| max_connections | 100 |
| max_delayed_threads | 20 |
| max_error_count | 64 |
| max_heap_table_size | 16777216 |
| max_insert_delayed_threads | 20 |
| max_join_size | 4294967295 |
| max_length_for_sort_data | 1024 |
| max_relay_log_size | 0 |
| max_seeks_for_key | 4294967295 |
| max_sort_length | 1024 |
| max_tmp_tables | 32 |
| max_user_connections | 0 |
| max_write_lock_count | 4294967295 |
| myisam_data_pointer_size | 4 |
| myisam_max_extra_sort_file_size | 2147483648 |
| myisam_max_sort_file_size | 2147483647 |
| myisam_recover_options | OFF |
| myisam_repair_threads | 1 |
| myisam_sort_buffer_size | 8388608 |
| net_buffer_length | 8192 |
| net_read_timeout | 30 |
| net_retry_count | 10 |
| net_write_timeout | 60 |
| new | OFF |
| old_passwords | OFF |
| open_files_limit | 1134 |
| pid_file | /var/lib/mysql/com.pid |
| port | 3306 |
| preload_buffer_size | 32768 |
| protocol_version | 10 |
| query_alloc_block_size | 8192 |
| query_cache_limit | 1048576 |
| query_cache_min_res_unit | 4096 |
| query_cache_size | 0 |
| query_cache_type | ON |
| query_cache_wlock_invalidate | OFF |
| query_prealloc_size | 8192 |
| range_alloc_block_size | 2048 |
| read_buffer_size | 258048 |
| read_only | OFF |
| read_rnd_buffer_size | 520192 |
| relay_log_purge | ON |
| relay_log_space_limit | 0 |
| rpl_recovery_rank | 0 |
| secure_auth | OFF |
| server_id | 1 |
| skip_external_locking | ON |
| skip_networking | OFF |
| skip_show_database | OFF |
| slave_net_timeout | 3600 |
| slave_transaction_retries | 0 |
| slow_launch_time | 2 |
| socket | /var/lib/mysql/mysql.sock |
| sort_buffer_size | 524280 |
| sql_mode | |
| storage_engine | MyISAM |
| sql_notes | OFF |
| sql_warnings | OFF |
| sync_binlog | 0 |
| sync_replication | 0 |
| sync_replication_slave_id | 0 |
| sync_replication_timeout | 0 |
| sync_frm | ON |
| system_time_zone | EET |
| table_cache | 512 |
| table_type | MyISAM |
| thread_cache_size | 0 |
| thread_stack | 126976 |
| time_format | %H:%i:%s |
| time_zone | SYSTEM |
| tmp_table_size | 33554432 |
| tmpdir | |
| transaction_alloc_block_size | 8192 |
| transaction_prealloc_size | 4096 |
| tx_isolation | REPEATABLE-READ |
| version | 4.1.14-standard-log |
| version_comment | MySQL Community Edition - Standard (GPL) |
| version_compile_machine | i686 |
| version_compile_os | pc-linux-gnu |
| wait_timeout | 28800 |
+---------------------------------+------------------------- -----------------+
184 rows in set (0.00 sec)
mysql>
[root@/]# free -m
total used free shared buffers cached
Mem: 2026 1796 229 0 126 1362
-/+ buffers/cache: 307 1718
Swap: 4000 0 4000
[root /]#
# Example MySQL config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MySQL plays
# an important part, or systems up to 128M where MySQL is used together with
# other programs (such as a web server)
#
# You can copy this file to
# /etc/my.cnf to set global options,
# mysql-data-dir/my.cnf to set server-specific options (in this
# installation this directory is /var/lib/mysql) or
# ~/.my.cnf to set user-specific options.
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.
# The following options will be passed to all MySQL clients
[client]
#password = your_password
port = 3306
socket = /var/lib/mysql/mysql.sock
# Here follows entries for some specific programs
# The MySQL server
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
skip-locking
key_buffer = 16M
max_allowed_packet = 1M
table_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
# Don't listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the "enable-named-pipe" option) will render mysqld useless!
#
#skip-networking
# Replication Master Server (default)
# binary logging is required for replication
log-bin
# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
server-id = 1
# Replication Slave (comment out master section to use this)
#
# To configure this host as a replication slave, you can choose between
# two methods :
#
# 1) Use the CHANGE MASTER TO command (fully described in our manual) -
# the syntax is:
#
# CHANGE MASTER TO MASTER_HOST=, MASTER_PORT=,
# MASTER_USER=, MASTER_PASSWORD= ;
#
# where you replace , , by quoted strings and
# by the master's port number (3306 by default).
#
# Example:
#
# CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
# MASTER_USER='joe', MASTER_PASSWORD='secret';
#
# OR
#
# 2) Set the variables below. However, in case you choose this method, then
# start replication for the first time (even unsuccessfully, for example
# if you mistyped the password in master-password and the slave fails to
# connect), the slave will create a master.info file, and any later
# change in this file to the variables' values below will be ignored and
# overridden by the content of the master.info file, unless you shutdown
# the slave server, delete master.info and restart the slaver server.
# For that reason, you may want to leave the lines below untouched
# (commented) and instead use CHANGE MASTER TO (see above)
#
# required unique id between 2 and 2^32 - 1
# (and different from the master)
# defaults to 2 if master-host is set
# but will not function as a slave if omitted
#server-id = 2
#
# The replication master for this slave - required
#master-host =
#
# The username the slave will use for authentication when connecting
# to the master - required
#master-user =
#
# The password the slave will authenticate with when connecting to
# the master - required
#master-password =
#
# The port the master is listening on.
# optional - defaults to 3306
#master-port =
#
# binary logging - not required for slaves, but recommended
#log-bin
# Point the following paths to different dedicated disks
#tmpdir = /tmp/
#log-update = /path-to-dedicated-directory/hostname
# Uncomment the following if you are using BDB tables
#bdb_cache_size = 4M
#bdb_max_lock = 10000
# Uncomment the following if you are using InnoDB tables
#innodb_data_home_dir = /var/lib/mysql/
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = /var/lib/mysql/
#innodb_log_arch_dir = /var/lib/mysql/
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
#innodb_buffer_pool_size = 16M
#innodb_additional_mem_pool_size = 2M
# Set .._log_file_size to 25 % of buffer pool size
#innodb_log_file_size = 5M
#innodb_log_buffer_size = 8M
#innodb_flush_log_at_trx_commit = 1
#innodb_lock_wait_timeout = 50
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates
[isamchk]
key_buffer = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M
[myisamchk]
key_buffer = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
--
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe: http://lists.mysql.com/mysql?unsub=gcdmg-mysql-2@m.gmane.org