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Mysqladmin command

From NetworkStuff


Mysql.svg

A CLI command available on most platforms with MySQL installed; used to administer a MySQL server.

Contents

Preferences-desktop-font-v2-22.png Usage Syntax

mysqladmin [options]

Common options include;

  • create db_name - create a database with the specified db_name
  • debug - write debug information to the error log
  • variables - display the MySQL server system variables and their values
  • password password - change the password of the current user account to the specified password
  • processlist - display a list of active server threads
  • reload - reload the grant tables
  • refresh - flush all tables and close and open log files
  • shutdown - stop the MySQL server
  • status - display the MySQL server status
  • version - display MySQL server version information
  • ' -
  • ' -

Vm-power-on-medium.png Usage Examples

Security-high-medium.png Security Considerations

Accessories-text-editor-v2-medium.png Usage Notes

Accessories-text-editor-v2-medium.png Linux Usage Notes

With most Linux or Unix commands;

  • Non root users may need to prefix commands with the sudo command, for example: sudo chmod 644 *
  • Brief help can be displayed using the -h or --help parameter, for example: chmod --help
  • A full command manual can be displayed using the man command followed by the command name, for example: man chmod
  • Sometimes 'info' pages are used instead of or to provide more information than man pages; for example: info chmod
  • Version information can normally be display using the -v, -V or --version parameter, for example: chmod --version. However, this paramater is also frequently used to display verbose output.

Utilities-terminal-medium-v2.png Typical Output

mysqladmin version;

mysqladmin  Ver 8.41 Distrib 5.0.37, for redhat-linux-gnu on i686
Copyright (C) 2000-2006 MySQL AB
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL license

Server version          5.0.37
Protocol version        10
Connection              Localhost via UNIX socket
UNIX socket             /var/lib/mysql/mysql.sock
Uptime:                 101 days 20 hours 48 min 15 sec

Threads: 1  Questions: 885523  Slow queries: 11  Opens: 4735  Flush tables: 1  Open tables: 70  Queries per second avg: 0.101

mysqladmin status;

Uptime: 8801236  Threads: 1  Questions: 885522  Slow queries: 11  Opens: 4735  Flush tables: 1  Open tables: 70  Queries per second avg: 0.101

mysqladmin variables;

+---------------------------------+----------------------------------------------------------+
 | Variable_name                   | Value                                                    |
 +---------------------------------+----------------------------------------------------------+
 | auto_increment_increment        | 1                                                        |
 | auto_increment_offset           | 1                                                        |
 | automatic_sp_privileges         | ON                                                       |
 | back_log                        | 50                                                       |
 | basedir                         | /usr/                                                    |
 | bdb_cache_size                  | 8388600                                                  |
 | bdb_home                        | /var/lib/mysql/                                          |
 | bdb_log_buffer_size             | 35840                                                    |
 | bdb_logdir                      |                                                          |
 | bdb_max_lock                    | 10000                                                    |
 | bdb_shared_data                 | OFF                                                      |
 | bdb_tmpdir                      | /tmp/                                                    |
 | binlog_cache_size               | 32768                                                    |
 | 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                 | 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                                                     |
 | div_precision_increment         | 4                                                        |
 | engine_condition_pushdown       | OFF                                                      |
 | 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                        | YES                                                      |
 | have_blackhole_engine           | NO                                                       |
 | have_compress                   | YES                                                      |
 | have_crypt                      | YES                                                      |
 | have_csv                        | NO                                                       |
 | have_dynamic_loading            | YES                                                      |
 | have_example_engine             | NO                                                       |
 | have_federated_engine           | NO                                                       |
 | have_geometry                   | YES                                                      |
 | have_innodb                     | YES                                                      |
 | have_isam                       | NO                                                       |
 | have_merge_engine               | YES                                                      |
 | have_ndbcluster                 | NO                                                       |
 | have_openssl                    | DISABLED                                                 |
 | 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         | 20971520                                                 |
 | 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_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_rollback_on_timeout      | OFF                                                      |
 | innodb_support_xa               | ON                                                       |
 | innodb_sync_spin_loops          | 20                                                       |
 | innodb_table_locks              | ON                                                       |
 | innodb_thread_concurrency       | 8                                                        |
 | innodb_thread_sleep_delay       | 10000                                                    |
 | interactive_timeout             | 28800                                                    |
 | join_buffer_size                | 131072                                                   |
 | key_buffer_size                 | 8388600                                                  |
 | 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                                                      |
 | lc_time_names                   | en_US                                                    |
 | license                         | GPL                                                      |
 | local_infile                    | ON                                                       |
 | locked_in_memory                | OFF                                                      |
 | log                             | OFF                                                      |
 | log_bin                         | OFF                                                      |
 | log_bin_trust_function_creators | OFF                                                      |
 | log_error                       |                                                          |
 | log_queries_not_using_indexes   | OFF                                                      |
 | log_slave_updates               | OFF                                                      |
 | log_slow_queries                | OFF                                                      |
 | log_warnings                    | 1                                                        |
 | long_query_time                 | 10                                                       |
 | low_priority_updates            | OFF                                                      |
 | lower_case_file_system          | OFF                                                      |
 | lower_case_table_names          | 0                                                        |
 | max_allowed_packet              | 1048576                                                  |
 | 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_prepared_stmt_count         | 16382                                                    |
 | max_relay_log_size              | 0                                                        |
 | max_seeks_for_key               | 4294967295                                               |
 | max_sort_length                 | 1024                                                     |
 | max_sp_recursion_depth          | 0                                                        |
 | max_tmp_tables                  | 32                                                       |
 | max_user_connections            | 0                                                        |
 | max_write_lock_count            | 4294967295                                               |
 | multi_range_count               | 256                                                      |
 | myisam_data_pointer_size        | 6                                                        |
 | myisam_max_sort_file_size       | 2147483647                                               |
 | myisam_recover_options          | OFF                                                      |
 | myisam_repair_threads           | 1                                                        |
 | myisam_sort_buffer_size         | 8388608                                                  |
 | myisam_stats_method             | nulls_unequal                                            |
 | net_buffer_length               | 16384                                                    |
 | net_read_timeout                | 30                                                       |
 | net_retry_count                 | 10                                                       |
 | net_write_timeout               | 60                                                       |
 | new                             | OFF                                                      |
 | old_passwords                   | ON                                                       |
 | open_files_limit                | 1024                                                     |
 | optimizer_prune_level           | 1                                                        |
 | optimizer_search_depth          | 62                                                       |
 | pid_file                        | /var/run/mysqld/mysqld.pid                               |
 | port                            | 3306                                                     |
 | preload_buffer_size             | 32768                                                    |
 | profiling                       | OFF                                                      |
 | profiling_history_size          | 15                                                       |
 | protocol_version                | 10                                                       |
 | query_alloc_block_size          | 8192                                                     |
 | query_cache_limit               | 1048576                                                  |
 | query_cache_min_res_unit        | 4096                                                     |
 | query_cache_size                | 10485760                                                 |
 | query_cache_type                | ON                                                       |
 | query_cache_wlock_invalidate    | OFF                                                      |
 | query_prealloc_size             | 8192                                                     |
 | range_alloc_block_size          | 2048                                                     |
 | read_buffer_size                | 131072                                                   |
 | read_only                       | OFF                                                      |
 | read_rnd_buffer_size            | 262144                                                   |
 | relay_log_purge                 | ON                                                       |
 | relay_log_space_limit           | 0                                                        |
 | rpl_recovery_rank               | 0                                                        |
 | secure_auth                     | OFF                                                      |
 | server_id                       | 0                                                        |
 | skip_external_locking           | ON                                                       |
 | skip_networking                 | OFF                                                      |
 | skip_show_database              | OFF                                                      |
 | slave_compressed_protocol       | OFF                                                      |
 | slave_load_tmpdir               | /tmp/                                                    |
 | slave_net_timeout               | 3600                                                     |
 | slave_skip_errors               | OFF                                                      |
 | slave_transaction_retries       | 10                                                       |
 | slow_launch_time                | 2                                                        |
 | socket                          | /var/lib/mysql/mysql.sock                                |
 | sort_buffer_size                | 2097144                                                  |
 | sql_big_selects                 | ON                                                       |
 | sql_mode                        |                                                          |
 | sql_notes                       | ON                                                       |
 | sql_warnings                    | OFF                                                      |
 | ssl_ca                          |                                                          |
 | ssl_capath                      |                                                          |
 | ssl_cert                        |                                                          |
 | ssl_cipher                      |                                                          |
 | ssl_key                         |                                                          |
 | storage_engine                  | MyISAM                                                   |
 | sync_binlog                     | 0                                                        |
 | sync_frm                        | ON                                                       |
 | system_time_zone                | GMT                                                      |
 | table_cache                     | 70                                                       |
 | table_lock_wait_timeout         | 50                                                       |
 | table_type                      | MyISAM                                                   |
 | thread_cache_size               | 4                                                        |
 | thread_stack                    | 196608                                                   |
 | time_format                     | %H:%i:%s                                                 |
 | time_zone                       | SYSTEM                                                   |
 | timed_mutexes                   | OFF                                                      |
 | tmp_table_size                  | 33554432                                                 |
 | tmpdir                          | /tmp/                                                    |
 | transaction_alloc_block_size    | 8192                                                     |
 | transaction_prealloc_size       | 4096                                                     |
 | tx_isolation                    | REPEATABLE-READ                                          |
 | updatable_views_with_limit      | YES                                                      |
 | version                         | 5.0.37                                                   |
 | version_bdb                     | Sleepycat Software: Berkeley DB 4.1.24: (March  5, 2007) |
 | version_comment                 | Source distribution                                      |
 | version_compile_machine         | i686                                                     |
 | version_compile_os              | redhat-linux-gnu                                         |
 | wait_timeout                    | 28800                                                    |
 +---------------------------------+----------------------------------------------------------+

Insert-object-medium.png Installation

Mysqladmin can be installed or upgraded as follows, depending on your platform;

   * Ubuntu: apt-get install mysql-client
   * Fedora Core: yum install mysql-client
   * FreeBSD: pkg_add -v -r mysql-client

Folder-medium.png Related Files

The mysqladmin executable is normally found here: /usr/bin/mysqladmin

Icemon-medium.png Related Commands

Use the mysql command to launch the MySQL shell, used to administer and query MySQL databases

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