Announcement

Announcement Module
Collapse
No announcement yet.

help optimize mysql for IPB

Page Title Module
Move Remove Collapse
X
Conversation Detail Module
Collapse
  • Filter
  • Time
  • Show
Clear All
new posts

  • help optimize mysql for IPB

    Dear Sirs,

    I have an invision power board running in a powerful machine.

    These are my machine configuration ( its a dedicated)


    Intel Core i5-750
    4 x 2,66 GHz
    6 GB DDR3-RAM
    100mbit line

    Currently I am running apache2 and mysql only.

    The database size is somewhat around 750 MB and I have arround 500 - 600 users online.

    Can someone help me go through the my.cnf and tell me how i can optimize it even more.


    ## The MySQL database server configuration file.## You can copy this to one of:# - "/etc/mysql/my.cnf" to set global options,# - "~/.my.cnf" to set user-specific options.## One can use all long options that the program supports.# Run program with --help to get a list of available options and with# --print-defaults to see which it would actually understand and use.## For explanations see# http://dev.mysql.com/doc/mysql/en/server-system-variables.html# This will be passed to all mysql clients# It has been reported that passwords should be enclosed with ticks/quotes# escpecially if they contain "#" chars...# Remember to edit /etc/mysql/debian.cnf when changing the socket location.[client]port = 3306socket = /var/run/mysqld/mysqld.sock# Here is entries for some specific programs# The following values assume you have at least 32M ram# This was formally known as [safe_mysqld]. Both versions are currently parsed.[mysqld_safe]socket = /var/run/mysqld/mysqld.socknice = 0[mysqld]## * Basic Settings#user = mysqlpid-file = /var/run/mysqld/mysqld.pidsocket = /var/run/mysqld/mysqld.sockport = 3306basedir = /usrdatadir = /var/lib/mysqltmpdir = /tmplanguage = /usr/share/mysql/englishskip-external-locking## Instead of skip-networking the default is now to listen only on# localhost which is more compatible and is not less secure.bind-address = 127.0.0.1## * Fine Tuning#key_buffer = 164Mmax_allowed_packet = 16Mthread_stack = 128Kthread_cache_size = 8# This replaces the startup script and checks MyISAM tables if needed# the first time they are touchedmyisam-recover = BACKUP#max_connections = 100#table_cache = 64#thread_concurrency = 10## * Query Cache Configuration#query_cache_limit = 1Mquery_cache_size = 16M## * Logging and Replication## Both location gets rotated by the cronjob.# Be aware that this log type is a performance killer.#log = /var/log/mysql/mysql.log## Error logging goes to syslog. This is a Debian improvement ## Here you can see queries with especially long duration#log_slow_queries = /var/log/mysql/mysql-slow.log#long_query_time = 2#log-queries-not-using-indexes## The following can be used as easy to replay backup logs or for replication.# note: if you are setting up a replication slave, see README.Debian about# other settings you may need to change.#server-id = 1#log_bin = /var/log/mysql/mysql-bin.logexpire_logs_days = 10max_binlog_size = 100M#binlog_do_db = include_database_name#binlog_ignore_db = include_database_name## * BerkeleyDB## Using BerkeleyDB is now discouraged as its support will cease in 5.1.12.skip-bdb## * InnoDB## InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.# Read the manual for more InnoDB related options. There are many!# You might want to disable InnoDB to shrink the mysqld process by circa 100MB.#skip-innodb## * Security Features## Read the manual, too, if you want chroot!# chroot = /var/lib/mysql/## For generating SSL certificates I recommend the OpenSSL GUI "tinyca".## ssl-ca=/etc/mysql/cacert.pem# ssl-cert=/etc/mysql/server-cert.pem# ssl-key=/etc/mysql/server-key.pem[mysqldump]quickquote-namesmax_allowed_packet = 16M[mysql]#no-auto-rehash # faster start of mysql but no tab completition[isamchk]key_buffer = 16M## * NDB Cluster## See /usr/share/doc/mysql-server-*/README.Debian for more information.## The following configuration is read by the NDB Data Nodes (ndbd processes)# not from the NDB Management Nodes (ndb_mgmd processes).## [MYSQL_CLUSTER]# ndb-connectstring=127.0.0.1## * IMPORTANT: Additional settings that can override those from this file!# The files must end with '.cnf', otherwise they'll be ignored.#!includedir /etc/mysql/conf.d/

  • #2
    1. Are you experiencing any performance problems?
    And if you are are they CPU or I/O related?

    2. And what does the output from SHOW GLOBAL STATUS look like?

    3. Have you used the Slow Query Log to see if you have any queries that are in need of optimization?

    As you can understand we need more information about your system to say anything.

    Comment


    • #3
      Dear Sterin,

      I am noticing that my website gets pretty slow when their are arround 1000 users online - therefor i am looking into this issue )

      honestly - until u told me about show global status, i didnt know about it - here is the output


      +-----------------------------------+--------------+| Variable_name | Value |+-----------------------------------+--------------+| Aborted_clients | 4 || Aborted_connects | 1 || Binlog_cache_disk_use | 0 || Binlog_cache_use | 0 || Bytes_received | 1654659973 || Bytes_sent | 170333669894 || Com_admin_commands | 4 || Com_alter_db | 0 || Com_alter_table | 1 || Com_analyze | 0 || Com_backup_table | 0 || Com_begin | 0 || Com_call_procedure | 0 || Com_change_db | 453 || Com_change_master | 0 || Com_check | 0 || Com_checksum | 0 || Com_commit | 0 || Com_create_db | 0 || Com_create_function | 0 || Com_create_index | 0 || Com_create_table | 0 || Com_create_user | 0 || Com_dealloc_sql | 0 || Com_delete | 195778 || 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 | 2 || Com_grant | 0 || Com_ha_close | 0 || Com_ha_open | 0 || Com_ha_read | 0 || Com_help | 0 || Com_insert | 459777 || Com_insert_select | 0 || Com_kill | 2 || Com_load | 0 || Com_load_master_data | 0 || Com_load_master_table | 0 || Com_lock_tables | 0 || 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 | 1185993 || Com_set_option | 379522 || Com_show_binlog_events | 0 || Com_show_binlogs | 0 || Com_show_charsets | 0 || Com_show_collations | 0 || Com_show_column_types | 0 || Com_show_create_db | 0 || Com_show_create_table | 333 || Com_show_databases | 2 || Com_show_errors | 0 || Com_show_fields | 2788 || Com_show_grants | 0 || Com_show_innodb_status | 0 || Com_show_keys | 0 || Com_show_logs | 0 || Com_show_master_status | 0 || Com_show_ndb_status | 0 || Com_show_new_master | 0 || Com_show_open_tables | 0 || Com_show_privileges | 0 || Com_show_processlist | 92 || Com_show_slave_hosts | 0 || Com_show_slave_status | 0 || Com_show_status | 3 || Com_show_storage_engines | 0 || Com_show_tables | 5 || Com_show_triggers | 0 || Com_show_variables | 3 || Com_show_warnings | 0 || Com_slave_start | 0 || Com_slave_stop | 0 || Com_stmt_close | 0 || Com_stmt_execute | 0 || Com_stmt_fetch | 0 || Com_stmt_prepare | 0 || Com_stmt_reset | 0 || Com_stmt_send_long_data | 0 || Com_truncate | 111 || Com_unlock_tables | 0 || Com_update | 326288 || Com_update_multi | 0 || Com_xa_commit | 0 || Com_xa_end | 0 || Com_xa_prepare | 0 || Com_xa_recover | 0 || Com_xa_rollback | 0 || Com_xa_start | 0 || Compression | OFF || Connections | 380282 || Created_tmp_disk_tables | 3020 || Created_tmp_files | 20174 || Created_tmp_tables | 27134 || Delayed_errors | 0 || Delayed_insert_threads | 0 || Delayed_writes | 0 || Flush_commands | 1 || Handler_commit | 0 || Handler_delete | 141008 || Handler_discover | 0 || Handler_prepare | 0 || Handler_read_first | 78292 || Handler_read_key | 47838592 || Handler_read_next | 491309944 || Handler_read_prev | 5332472 || Handler_read_rnd | 3747665 || Handler_read_rnd_next | 841068351 || Handler_rollback | 0 || Handler_savepoint | 0 || Handler_savepoint_rollback | 0 || Handler_update | 2625769 || Handler_write | 1553222 || Innodb_buffer_pool_pages_data | 19 || Innodb_buffer_pool_pages_dirty | 0 || Innodb_buffer_pool_pages_flushed | 0 || Innodb_buffer_pool_pages_free | 493 || Innodb_buffer_pool_pages_latched | 0 || Innodb_buffer_pool_pages_misc | 0 || Innodb_buffer_pool_pages_total | 512 || Innodb_buffer_pool_read_ahead_rnd | 1 || Innodb_buffer_pool_read_ahead_seq | 0 || Innodb_buffer_pool_read_requests | 77 || Innodb_buffer_pool_reads | 12 || Innodb_buffer_pool_wait_free | 0 || Innodb_buffer_pool_write_requests | 0 || Innodb_data_fsyncs | 3 || Innodb_data_pending_fsyncs | 0 || Innodb_data_pending_reads | 0 || Innodb_data_pending_writes | 0 || Innodb_data_read | 2494464 || Innodb_data_reads | 25 || Innodb_data_writes | 3 || Innodb_data_written | 1536 || Innodb_dblwr_pages_written | 0 || Innodb_dblwr_writes | 0 || Innodb_log_waits | 0 || Innodb_log_write_requests | 0 || Innodb_log_writes | 1 || Innodb_os_log_fsyncs | 3 || Innodb_os_log_pending_fsyncs | 0 || Innodb_os_log_pending_writes | 0 || Innodb_os_log_written | 512 || Innodb_page_size | 16384 || Innodb_pages_created | 0 || Innodb_pages_read | 19 || Innodb_pages_written | 0 || Innodb_row_lock_current_waits | 0 || Innodb_row_lock_time | 0 || Innodb_row_lock_time_avg | 0 || Innodb_row_lock_time_max | 0 || Innodb_row_lock_waits | 0 || Innodb_rows_deleted | 0 || Innodb_rows_inserted | 0 || Innodb_rows_read | 0 || Innodb_rows_updated | 0 || Key_blocks_not_flushed | 0 || Key_blocks_unused | 136533 || Key_blocks_used | 62719 || Key_read_requests | 408167962 || Key_reads | 176574 || Key_write_requests | 2911314 || Key_writes | 2668143 || Last_query_cost | 0.000000 || Max_used_connections | 47 || Ndb_cluster_node_id | 0 || Ndb_config_from_host | || Ndb_config_from_port | 0 || Ndb_number_of_data_nodes | 0 || Not_flushed_delayed_rows | 0 || Open_files | 121 || Open_streams | 0 || Open_tables | 64 || Opened_tables | 9633 || Prepared_stmt_count | 0 || Qcache_free_blocks | 275 || Qcache_free_memory | 1126376 || Qcache_hits | 2323271 || Qcache_inserts | 1167565 || Qcache_lowmem_prunes | 54788 || Qcache_not_cached | 21030 || Qcache_queries_in_cache | 1601 || Qcache_total_blocks | 4074 || Questions | 5254715 || Rpl_status | NULL || Select_full_join | 41 || Select_full_range_join | 0 || Select_range | 336239 || Select_range_check | 0 || Select_scan | 22175 || Slave_open_temp_tables | 0 || Slave_retried_transactions | 0 || Slave_running | OFF || Slow_launch_threads | 0 || Slow_queries | 0 || Sort_merge_passes | 10590 || Sort_range | 57317 || Sort_rows | 266704390 || Sort_scan | 34008 || Ssl_accept_renegotiates | 0 || Ssl_accepts | 0 || Ssl_callback_cache_hits | 0 || Ssl_cipher | || Ssl_cipher_list | || Ssl_client_connects | 0 || Ssl_connect_renegotiates | 0 || Ssl_ctx_verify_depth | 0 || Ssl_ctx_verify_mode | 0 || Ssl_default_timeout | 0 || Ssl_finished_accepts | 0 || Ssl_finished_connects | 0 || Ssl_session_cache_hits | 0 || Ssl_session_cache_misses | 0 || Ssl_session_cache_mode | NONE || Ssl_session_cache_overflows | 0 || Ssl_session_cache_size | 0 || Ssl_session_cache_timeouts | 0 || Ssl_sessions_reused | 0 || Ssl_used_session_cache_entries | 0 || Ssl_verify_depth | 0 || Ssl_verify_mode | 0 || Ssl_version | || Table_locks_immediate | 3526421 || Table_locks_waited | 10945 || Tc_log_max_pages_used | 0 || Tc_log_page_size | 0 || Tc_log_page_waits | 0 || Threads_cached | 7 || Threads_connected | 1 || Threads_created | 359 || Threads_running | 1 || Uptime | 161692 || Uptime_since_flush_status | 161692 |+-----------------------------------+--------------+253 rows in set (0.00 sec)


      As i am using Invision power board software as forum, i dont do optimization in queries - correct me if i am wrong please.

      I do understand u need information ) I am really noob into this mysql / apache stuff - please ask me and i will give what ever required info. This is a learning process for me.

      thankyou for being kind answering my query )

      Comment

      Working...
      X