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Mysql super slow - Help me analyze my MySQL installation
Posted by: Timothy Martens ()
Date: August 30, 2013 03:43PM

Sometimes mysql seems to get bogged down and just plain old slow...to the point we can't work.

We have 2 tables constantly accessed whith over 20 million rows of data. These cause long running queries of 5-15 seconds. If this seems long to you let me know. This particular query is two tables being joined. I can get more info on this if requested.

Things slow to a crawl for no good reason that I can see.

In top the load average is .61 .50 .58
The CPU hums at arounds 20%
The memory reads: Mem: 33020856k total, 32783552k used, 237304k free, 455040k buffers

nothing jumps out at in in the processlist.

php/apache on another box looks fine...except extreme wait times for apache. (500+ seconds.)

show processlist looks fine for the most part a few long running queries but everything was par for the course.


Wondering if you guys can help me tweak some of the DB settings.


mysql> show global variables;
+-----------------------------------------+-------------------------------------------------------------------------------------------+
| Variable_name                           | Value                                                                                     |
+-----------------------------------------+-------------------------------------------------------------------------------------------+
| auto_increment_increment                | 1                                                                                         |
| auto_increment_offset                   | 1                                                                                         |
| autocommit                              | ON                                                                                        |
| automatic_sp_privileges                 | ON                                                                                        |
| back_log                                | 50                                                                                        |
| basedir                                 | /usr/                                                                                     |
| big_tables                              | OFF                                                                                       |
| binlog_cache_size                       | 32768                                                                                     |
| binlog_direct_non_transactional_updates | OFF                                                                                       |
| binlog_format                           | MIXED                                                                                     |
| bulk_insert_buffer_size                 | 8388608                                                                                   |
| character_set_client                    | latin1                                                                                    |
| character_set_connection                | latin1                                                                                    |
| character_set_database                  | latin1                                                                                    |
| character_set_filesystem                | binary                                                                                    |
| 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                                                                         |
| completion_type                         | 0                                                                                         |
| concurrent_insert                       | 1                                                                                         |
| connect_timeout                         | 10                                                                                        |
| 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                                                                                      |
| div_precision_increment                 | 4                                                                                         |
| engine_condition_pushdown               | ON                                                                                        |
| error_count                             | 0                                                                                         |
| event_scheduler                         | OFF                                                                                       |
| expire_logs_days                        | 14                                                                                        |
| flush                                   | OFF                                                                                       |
| flush_time                              | 0                                                                                         |
| foreign_key_checks                      | ON                                                                                        |
| ft_boolean_syntax                       | + -><()~*:""&|                                                                            |
| ft_max_word_len                         | 84                                                                                        |
| ft_min_word_len                         | 4                                                                                         |
| ft_query_expansion_limit                | 20                                                                                        |
| ft_stopword_file                        | (built-in)                                                                                |
| general_log                             | OFF                                                                                       |
| general_log_file                        | /var/run/mysqld/mysqld.log                                                                |
| group_concat_max_len                    | 1024                                                                                      |
| have_community_features                 | YES                                                                                       |
| have_compress                           | YES                                                                                       |
| have_crypt                              | YES                                                                                       |
| have_csv                                | YES                                                                                       |
| have_dynamic_loading                    | YES                                                                                       |
| have_geometry                           | YES                                                                                       |
| have_innodb                             | YES                                                                                       |
| have_ndbcluster                         | NO                                                                                        |
| have_openssl                            | DISABLED                                                                                  |
| have_partitioning                       | YES                                                                                       |
| have_query_cache                        | YES                                                                                       |
| have_rtree_keys                         | YES                                                                                       |
| have_ssl                                | DISABLED                                                                                  |
| have_symlink                            | YES                                                                                       |
| hostname                                | AIRDB01                                                                                   |
| identity                                | 0                                                                                         |
| ignore_builtin_innodb                   | OFF                                                                                       |
| init_connect                            |                                                                                           |
| init_file                               |                                                                                           |
| init_slave                              |                                                                                           |
| innodb_adaptive_hash_index              | ON                                                                                        |
| innodb_additional_mem_pool_size         | 1048576                                                                                   |
| innodb_autoextend_increment             | 8                                                                                         |
| innodb_autoinc_lock_mode                | 1                                                                                         |
| innodb_buffer_pool_size                 | 3221225472                                                                                |
| innodb_checksums                        | ON                                                                                        |
| innodb_commit_concurrency               | 0                                                                                         |
| innodb_concurrency_tickets              | 500                                                                                       |
| innodb_data_file_path                   | ibdata1:10M:autoextend                                                                    |
| innodb_data_home_dir                    |                                                                                           |
| innodb_doublewrite                      | ON                                                                                        |
| innodb_fast_shutdown                    | 1                                                                                         |
| 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_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_rollback_on_timeout              | OFF                                                                                       |
| innodb_stats_on_metadata                | ON                                                                                        |
| innodb_support_xa                       | ON                                                                                        |
| innodb_sync_spin_loops                  | 20                                                                                        |
| innodb_table_locks                      | ON                                                                                        |
| innodb_thread_concurrency               | 8                                                                                         |
| innodb_thread_sleep_delay               | 10000                                                                                     |
| innodb_use_legacy_cardinality_algorithm | ON                                                                                        |
| insert_id                               | 0                                                                                         |
| interactive_timeout                     | 28800                                                                                     |
| join_buffer_size                        | 524288                                                                                    |
| keep_files_on_create                    | OFF                                                                                       |
| key_buffer_size                         | 2097152                                                                                   |
| key_cache_age_threshold                 | 300                                                                                       |
| key_cache_block_size                    | 1024                                                                                      |
| key_cache_division_limit                | 100                                                                                       |
| language                                | /usr/share/mysql/english/                                                                 |
| large_files_support                     | ON                                                                                        |
| large_page_size                         | 0                                                                                         |
| large_pages                             | OFF                                                                                       |
| last_insert_id                          | 0                                                                                         |
| lc_time_names                           | en_US                                                                                     |
| license                                 | GPL                                                                                       |
| local_infile                            | ON                                                                                        |
| locked_in_memory                        | OFF                                                                                       |
| log                                     | OFF                                                                                       |
| log_bin                                 | ON                                                                                        |
| log_bin_trust_function_creators         | OFF                                                                                       |
| log_bin_trust_routine_creators          | OFF                                                                                       |
| log_error                               |                                                                                           |
| log_output                              | FILE                                                                                      |
| log_queries_not_using_indexes           | OFF                                                                                       |
| log_slave_updates                       | OFF                                                                                       |
| log_slow_queries                        | ON                                                                                        |
| log_warnings                            | 1                                                                                         |
| long_query_time                         | 5.000000                                                                                  |
| low_priority_updates                    | OFF                                                                                       |
| lower_case_file_system                  | OFF                                                                                       |
| lower_case_table_names                  | 0                                                                                         |
| max_allowed_packet                      | 16777216                                                                                  |
| max_binlog_cache_size                   | 18446744073709547520                                                                      |
| max_binlog_size                         | 209715200                                                                                 |
| max_connect_errors                      | 10                                                                                        |
| max_connections                         | 151                                                                                       |
| max_delayed_threads                     | 20                                                                                        |
| max_error_count                         | 64                                                                                        |
| max_heap_table_size                     | 67108864                                                                                  |
| max_insert_delayed_threads              | 20                                                                                        |
| max_join_size                           | 18446744073709551615                                                                      |
| max_length_for_sort_data                | 1024                                                                                      |
| max_prepared_stmt_count                 | 16382                                                                                     |
| max_relay_log_size                      | 0                                                                                         |
| max_seeks_for_key                       | 18446744073709551615                                                                      |
| max_sort_length                         | 1024                                                                                      |
| max_sp_recursion_depth                  | 0                                                                                         |
| max_tmp_tables                          | 32                                                                                        |
| max_user_connections                    | 0                                                                                         |
| max_write_lock_count                    | 18446744073709551615                                                                      |
| min_examined_row_limit                  | 0                                                                                         |
| multi_range_count                       | 256                                                                                       |
| myisam_data_pointer_size                | 6                                                                                         |
| myisam_max_sort_file_size               | 9223372036853727232                                                                       |
| myisam_mmap_size                        | 18446744073709551615                                                                      |
| myisam_recover_options                  | BACKUP                                                                                    |
| myisam_repair_threads                   | 1                                                                                         |
| myisam_sort_buffer_size                 | 8388608                                                                                   |
| myisam_stats_method                     | nulls_unequal                                                                             |
| myisam_use_mmap                         | OFF                                                                                       |
| net_buffer_length                       | 16384                                                                                     |
| net_read_timeout                        | 30                                                                                        |
| net_retry_count                         | 10                                                                                        |
| net_write_timeout                       | 60                                                                                        |
| new                                     | OFF                                                                                       |
| old                                     | OFF                                                                                       |
| old_alter_table                         | OFF                                                                                       |
| old_passwords                           | OFF                                                                                       |
| open_files_limit                        | 2209                                                                                      |
| optimizer_prune_level                   | 1                                                                                         |
| optimizer_search_depth                  | 62                                                                                        |
| optimizer_switch                        | index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on |
| pid_file                                | /var/run/mysqld/mysqld.pid                                                                |
| plugin_dir                              | /usr/lib/mysql/plugin                                                                     |
| port                                    | 3306                                                                                      |
| preload_buffer_size                     | 32768                                                                                     |
| profiling                               | OFF                                                                                       |
| profiling_history_size                  | 15                                                                                        |
| protocol_version                        | 10                                                                                        |
| pseudo_thread_id                        | 0                                                                                         |
| query_alloc_block_size                  | 8192                                                                                      |
| query_cache_limit                       | 1048576                                                                                   |
| query_cache_min_res_unit                | 4096                                                                                      |
| query_cache_size                        | 67108864                                                                                  |
| query_cache_type                        | ON                                                                                        |
| query_cache_wlock_invalidate            | OFF                                                                                       |
| query_prealloc_size                     | 8192                                                                                      |
| rand_seed1                              |                                                                                           |
| rand_seed2                              |                                                                                           |
| range_alloc_block_size                  | 4096                                                                                      |
| read_buffer_size                        | 524288                                                                                    |
| read_only                               | OFF                                                                                       |
| read_rnd_buffer_size                    | 262144                                                                                    |
| relay_log                               |                                                                                           |
| relay_log_index                         |                                                                                           |
| relay_log_info_file                     | relay-log.info                                                                            |
| relay_log_purge                         | ON                                                                                        |
| relay_log_space_limit                   | 0                                                                                         |
| report_host                             |                                                                                           |
| report_password                         |                                                                                           |
| report_port                             | 3306                                                                                      |
| report_user                             |                                                                                           |
| rpl_recovery_rank                       | 0                                                                                         |
| secure_auth                             | OFF                                                                                       |
| secure_file_priv                        |                                                                                           |
| server_id                               | 1                                                                                         |
| skip_external_locking                   | ON                                                                                        |
| skip_name_resolve                       | ON                                                                                        |
| skip_networking                         | OFF                                                                                       |
| skip_show_database                      | OFF                                                                                       |
| slave_compressed_protocol               | OFF                                                                                       |
| slave_exec_mode                         | STRICT                                                                                    |
| slave_load_tmpdir                       | /tmp                                                                                      |
| slave_net_timeout                       | 3600                                                                                      |
| slave_skip_errors                       | OFF                                                                                       |
| slave_transaction_retries               | 10                                                                                        |
| slow_launch_time                        | 2                                                                                         |
| slow_query_log                          | ON                                                                                        |
| slow_query_log_file                     | /var/log/mysql/mysql-slow.log                                                             |
| socket                                  | /var/run/mysqld/mysqld.sock                                                               |
| sort_buffer_size                        | 2097144                                                                                   |
| sql_auto_is_null                        | ON                                                                                        |
| sql_big_selects                         | ON                                                                                        |
| sql_big_tables                          | OFF                                                                                       |
| sql_buffer_result                       | OFF                                                                                       |
| sql_log_bin                             | ON                                                                                        |
| sql_log_off                             | OFF                                                                                       |
| sql_log_update                          | ON                                                                                        |
| sql_low_priority_updates                | OFF                                                                                       |
| sql_max_join_size                       | 18446744073709551615                                                                      |
| sql_mode                                |                                                                                           |
| sql_notes                               | ON                                                                                        |
| sql_quote_show_create                   | ON                                                                                        |
| sql_safe_updates                        | OFF                                                                                       |
| sql_select_limit                        | 18446744073709551615                                                                      |
| sql_slave_skip_counter                  |                                                                                           |
| sql_warnings                            | OFF                                                                                       |
| ssl_ca                                  |                                                                                           |
| ssl_capath                              |                                                                                           |
| ssl_cert                                |                                                                                           |
| ssl_cipher                              |                                                                                           |
| ssl_key                                 |                                                                                           |
| storage_engine                          | InnoDB                                                                                    |
| sync_binlog                             | 0                                                                                         |
| sync_frm                                | ON                                                                                        |
| system_time_zone                        | EDT                                                                                       |
| table_definition_cache                  | 256                                                                                       |
| table_lock_wait_timeout                 | 50                                                                                        |
| table_open_cache                        | 1024                                                                                      |
| table_type                              | InnoDB                                                                                    |
| thread_cache_size                       | 8                                                                                         |
| thread_handling                         | one-thread-per-connection                                                                 |
| thread_stack                            | 196608                                                                                    |
| time_format                             | %H:%i:%s                                                                                  |
| time_zone                               | SYSTEM                                                                                    |
| timed_mutexes                           | OFF                                                                                       |
| timestamp                               | 1377897406                                                                                |
| tmp_table_size                          | 67108864                                                                                  |
| tmpdir                                  | /tmp                                                                                      |
| transaction_alloc_block_size            | 8192                                                                                      |
| transaction_prealloc_size               | 4096                                                                                      |
| tx_isolation                            | REPEATABLE-READ                                                                           |
| unique_checks                           | ON                                                                                        |
| updatable_views_with_limit              | YES                                                                                       |
| version                                 | 5.1.49-3-log                                                                              |
| version_comment                         | (Debian)                                                                                  |
| version_compile_machine                 | x86_64                                                                                    |
| version_compile_os                      | debian-linux-gnu                                                                          |
| wait_timeout                            | 28800                                                                                     |
| warning_count                           | 0                                                                                         |
+-----------------------------------------+-------------------------------------------------------------------------------------------+
274 rows in set (0.00 sec)



mysql> show global status;
+-----------------------------------+------------------+
| Variable_name                     | Value            |
+-----------------------------------+------------------+
| Aborted_clients                   | 728              |
| Aborted_connects                  | 29793            |
| Binlog_cache_disk_use             | 69987            |
| Binlog_cache_use                  | 58947027         |
| Bytes_received                    | 1936245439294    |
| Bytes_sent                        | 4908486142476    |
| Com_admin_commands                | 113              |
| Com_assign_to_keycache            | 0                |
| Com_alter_db                      | 0                |
| Com_alter_db_upgrade              | 0                |
| Com_alter_event                   | 0                |
| Com_alter_function                | 0                |
| Com_alter_procedure               | 0                |
| Com_alter_server                  | 0                |
| Com_alter_table                   | 41               |
| Com_alter_tablespace              | 0                |
| Com_analyze                       | 0                |
| Com_backup_table                  | 0                |
| Com_begin                         | 1391904          |
| Com_binlog                        | 0                |
| Com_call_procedure                | 0                |
| Com_change_db                     | 29244436         |
| Com_change_master                 | 0                |
| Com_check                         | 0                |
| Com_checksum                      | 0                |
| Com_commit                        | 1388399          |
| Com_create_db                     | 0                |
| Com_create_event                  | 0                |
| Com_create_function               | 0                |
| Com_create_index                  | 0                |
| Com_create_procedure              | 0                |
| Com_create_server                 | 0                |
| Com_create_table                  | 22               |
| Com_create_trigger                | 0                |
| Com_create_udf                    | 0                |
| Com_create_user                   | 0                |
| Com_create_view                   | 0                |
| Com_dealloc_sql                   | 0                |
| Com_delete                        | 104              |
| Com_delete_multi                  | 93933            |
| Com_do                            | 0                |
| Com_drop_db                       | 0                |
| Com_drop_event                    | 0                |
| Com_drop_function                 | 0                |
| Com_drop_index                    | 0                |
| Com_drop_procedure                | 0                |
| Com_drop_server                   | 0                |
| Com_drop_table                    | 2                |
| Com_drop_trigger                  | 0                |
| Com_drop_user                     | 0                |
| Com_drop_view                     | 0                |
| Com_empty_query                   | 0                |
| Com_execute_sql                   | 0                |
| Com_flush                         | 104              |
| Com_grant                         | 0                |
| Com_ha_close                      | 0                |
| Com_ha_open                       | 0                |
| Com_ha_read                       | 0                |
| Com_help                          | 0                |
| Com_insert                        | 49875775         |
| Com_insert_select                 | 1                |
| Com_install_plugin                | 0                |
| Com_kill                          | 39               |
| 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_release_savepoint             | 0                |
| Com_rename_table                  | 1                |
| Com_rename_user                   | 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                      | 3505             |
| Com_rollback_to_savepoint         | 0                |
| Com_savepoint                     | 0                |
| Com_select                        | 1751973799       |
| Com_set_option                    | 28301146         |
| Com_show_authors                  | 0                |
| Com_show_binlog_events            | 0                |
| Com_show_binlogs                  | 0                |
| Com_show_charsets                 | 0                |
| Com_show_collations               | 0                |
| Com_show_column_types             | 0                |
| Com_show_contributors             | 0                |
| Com_show_create_db                | 0                |
| Com_show_create_event             | 0                |
| Com_show_create_func              | 0                |
| Com_show_create_proc              | 0                |
| Com_show_create_table             | 382              |
| Com_show_create_trigger           | 1                |
| Com_show_databases                | 100              |
| Com_show_engine_logs              | 0                |
| Com_show_engine_mutex             | 0                |
| Com_show_engine_status            | 3                |
| Com_show_events                   | 0                |
| Com_show_errors                   | 0                |
| Com_show_fields                   | 1393684          |
| Com_show_function_status          | 0                |
| Com_show_grants                   | 0                |
| Com_show_keys                     | 14               |
| Com_show_master_status            | 0                |
| Com_show_new_master               | 0                |
| Com_show_open_tables              | 0                |
| Com_show_plugins                  | 0                |
| Com_show_privileges               | 0                |
| Com_show_procedure_status         | 0                |
| Com_show_processlist              | 4053             |
| Com_show_profile                  | 0                |
| Com_show_profiles                 | 0                |
| Com_show_slave_hosts              | 0                |
| Com_show_slave_status             | 0                |
| Com_show_status                   | 3928             |
| Com_show_storage_engines          | 0                |
| Com_show_table_status             | 399              |
| Com_show_tables                   | 30841            |
| Com_show_triggers                 | 382              |
| Com_show_variables                | 90               |
| 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_reprepare                | 0                |
| Com_stmt_reset                    | 0                |
| Com_stmt_send_long_data           | 0                |
| Com_truncate                      | 0                |
| Com_uninstall_plugin              | 0                |
| Com_unlock_tables                 | 6                |
| Com_update                        | 69818074         |
| Com_update_multi                  | 7333171          |
| 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                       | 29274640         |
| Created_tmp_disk_tables           | 50635504         |
| Created_tmp_files                 | 4297671          |
| Created_tmp_tables                | 208065975        |
| Delayed_errors                    | 0                |
| Delayed_insert_threads            | 0                |
| Delayed_writes                    | 0                |
| Flush_commands                    | 1                |
| Handler_commit                    | 2003106566       |
| Handler_delete                    | 999786           |
| Handler_discover                  | 0                |
| Handler_prepare                   | 245301008        |
| Handler_read_first                | 1152625905       |
| Handler_read_key                  | 66481095352      |
| Handler_read_next                 | 233388318536     |
| Handler_read_prev                 | 223737789041     |
| Handler_read_rnd                  | 789866066        |
| Handler_read_rnd_next             | 5824352344435    |
| Handler_rollback                  | 17834            |
| Handler_savepoint                 | 0                |
| Handler_savepoint_rollback        | 0                |
| Handler_update                    | 77314679         |
| Handler_write                     | 108567358520     |
| Innodb_buffer_pool_pages_data     | 192052           |
| Innodb_buffer_pool_pages_dirty    | 1050             |
| Innodb_buffer_pool_pages_flushed  | 238086928        |
| Innodb_buffer_pool_pages_free     | 0                |
| Innodb_buffer_pool_pages_misc     | 4556             |
| Innodb_buffer_pool_pages_total    | 196608           |
| Innodb_buffer_pool_read_ahead_rnd | 827081402        |
| Innodb_buffer_pool_read_ahead_seq | 51120764         |
| Innodb_buffer_pool_read_requests  | 2589498330994    |
| Innodb_buffer_pool_reads          | 50414245778      |
| Innodb_buffer_pool_wait_free      | 0                |
| Innodb_buffer_pool_write_requests | 1280450349       |
| Innodb_data_fsyncs                | 129644192        |
| Innodb_data_pending_fsyncs        | 0                |
| Innodb_data_pending_reads         | 0                |
| Innodb_data_pending_writes        | 0                |
| Innodb_data_read                  | 1428388511731712 |
| Innodb_data_reads                 | 60117712496      |
| Innodb_data_writes                | 354694233        |
| Innodb_data_written               | 7979408238080    |
| Innodb_dblwr_pages_written        | 238086928        |
| Innodb_dblwr_writes               | 2886033          |
| Innodb_log_waits                  | 526              |
| Innodb_log_write_requests         | 298650239        |
| Innodb_log_writes                 | 122917409        |
| Innodb_os_log_fsyncs              | 123916257        |
| Innodb_os_log_pending_fsyncs      | 0                |
| Innodb_os_log_pending_writes      | 0                |
| Innodb_os_log_written             | 177279212032     |
| Innodb_page_size                  | 16384            |
| Innodb_pages_created              | 3761864          |
| Innodb_pages_read                 | 87182366357      |
| Innodb_pages_written              | 238086928        |
| Innodb_row_lock_current_waits     | 0                |
| Innodb_row_lock_time              | 193192537        |
| Innodb_row_lock_time_avg          | 15759            |
| Innodb_row_lock_time_max          | 51977            |
| Innodb_row_lock_waits             | 12259            |
| Innodb_rows_deleted               | 999786           |
| Innodb_rows_inserted              | 54307171         |
| Innodb_rows_read                  | 6144467128576    |
| Innodb_rows_updated               | 76956722         |
| Key_blocks_not_flushed            | 0                |
| Key_blocks_unused                 | 1674             |
| Key_blocks_used                   | 46               |
| Key_read_requests                 | 518851704        |
| Key_reads                         | 30               |
| Key_write_requests                | 269177212        |
| Key_writes                        | 0                |
| Last_query_cost                   | 0.000000         |
| Max_used_connections              | 152              |
| Not_flushed_delayed_rows          | 0                |
| Open_files                        | 30               |
| Open_streams                      | 0                |
| Open_table_definitions            | 396              |
| Open_tables                       | 1024             |
| Opened_files                      | 218509101        |
| Opened_table_definitions          | 2409             |
| Opened_tables                     | 9464             |
| Prepared_stmt_count               | 0                |
| Qcache_free_blocks                | 1688             |
| Qcache_free_memory                | 5690480          |
| Qcache_hits                       | 1131383165       |
| Qcache_inserts                    | 1467374969       |
| Qcache_lowmem_prunes              | 828236185        |
| Qcache_not_cached                 | 284490723        |
| Qcache_queries_in_cache           | 25911            |
| Qcache_total_blocks               | 53757            |
| Queries                           | 3101485759       |
| Questions                         | 3101485759       |
| Rpl_status                        | NULL             |
| Select_full_join                  | 167419523        |
| Select_full_range_join            | 2660             |
| Select_range                      | 18248067         |
| Select_range_check                | 199742           |
| Select_scan                       | 350527793        |
| Slave_open_temp_tables            | 0                |
| Slave_retried_transactions        | 0                |
| Slave_running                     | OFF              |
| Slow_launch_threads               | 0                |
| Slow_queries                      | 567591           |
| Sort_merge_passes                 | 3061715          |
| Sort_range                        | 15722255         |
| Sort_rows                         | 1118691936       |
| Sort_scan                         | 207029788        |
| 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             | 6056896210       |
| Table_locks_waited                | 72               |
| Tc_log_max_pages_used             | 0                |
| Tc_log_page_size                  | 0                |
| Tc_log_page_waits                 | 11               |
| Threads_cached                    | 3                |
| Threads_connected                 | 10               |
| Threads_created                   | 163005           |
| Threads_running                   | 5                |
| Uptime                            | 8961459          |
| Uptime_since_flush_status         | 8961459          |
+-----------------------------------+------------------+
291 rows in set (0.00 sec)

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Subject Views Written By Posted
Mysql super slow - Help me analyze my MySQL installation 396 Timothy Martens 08/30/2013 03:43PM
Re: Mysql super slow - Help me analyze my MySQL installation 298 Rick James 09/01/2013 10:46AM


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