| cpu load 100% [message #2331] |
Wed, 05 December 2007 12:41  |
 mesti
Messages: 7
Registered: December 2007 |
Junior Member |
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I have a debian server with mysql 4.1
1 gb ddr2 ram, intel 3.200 cpu
cpu load always 100%
mysql> SHOW GLOBAL VARIABLES;
+---------------------------------+------------------------------+
| Variable_name | Value |
+---------------------------------+------------------------------+
| back_log | 50 |
| basedir | /usr/ |
| binlog_cache_size | 32768 |
| bulk_insert_buffer_size | 8388608 |
| character_set_client | latin1 |
| character_set_connection | latin1 |
| character_set_database | latin1 |
| character_set_results | latin1 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
| collation_connection | latin1_swedish_ci |
| collation_database | latin1_swedish_ci |
| collation_server | latin1_swedish_ci |
| concurrent_insert | ON |
| connect_timeout | 5 |
| datadir | /var/lib/mysql/ |
| date_format | %Y-%m-%d |
| datetime_format | %Y-%m-%d %H:%i:%s |
| default_week_format | 0 |
| delay_key_write | ON |
| delayed_insert_limit | 100 |
| delayed_insert_timeout | 300 |
| delayed_queue_size | 1000 |
| expire_logs_days | 5 |
| 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 | YES |
| have_bdb | NO |
| have_blackhole_engine | NO |
| have_compress | YES |
| have_crypt | YES |
| have_csv | YES |
| have_example_engine | NO |
| have_geometry | YES |
| have_innodb | YES |
| have_isam | YES |
| have_ndbcluster | DISABLED |
| have_openssl | NO |
| have_query_cache | YES |
| have_raid | NO |
| have_rtree_keys | YES |
| have_symlink | YES |
| init_connect | |
| init_file | |
| init_slave | |
| innodb_additional_mem_pool_size | 1048576 |
| innodb_autoextend_increment | 8 |
| innodb_buffer_pool_awe_mem_mb | 0 |
| innodb_buffer_pool_size | 8388608 |
| innodb_data_file_path | ibdata1:10M:autoextend |
| innodb_data_home_dir | |
| innodb_fast_shutdown | ON |
| innodb_file_io_threads | 4 |
| innodb_file_per_table | OFF |
| innodb_flush_log_at_trx_commit | 1 |
| innodb_flush_method | |
| innodb_force_recovery | 0 |
| innodb_lock_wait_timeout | 50 |
| innodb_locks_unsafe_for_binlog | OFF |
| innodb_log_arch_dir | |
| innodb_log_archive | OFF |
| innodb_log_buffer_size | 1048576 |
| innodb_log_file_size | 5242880 |
| innodb_log_files_in_group | 2 |
| innodb_log_group_home_dir | ./ |
| innodb_max_dirty_pages_pct | 90 |
| innodb_max_purge_lag | 0 |
| innodb_mirrored_log_groups | 1 |
| innodb_open_files | 300 |
| innodb_table_locks | ON |
| innodb_thread_concurrency | 8 |
| interactive_timeout | 28800 |
| join_buffer_size | 131072 |
| key_buffer_size | 33554432 |
| key_cache_age_threshold | 300 |
| key_cache_block_size | 1024 |
| key_cache_division_limit | 100 |
| language | /usr/share/mysql/english/ |
| large_files_support | ON |
| license | GPL |
| local_infile | ON |
| locked_in_memory | OFF |
| log | OFF |
| log_bin | ON |
| log_error | |
| log_slave_updates | OFF |
| log_slow_queries | OFF |
| log_update | OFF |
| log_warnings | 1 |
| long_query_time | 4 |
| low_priority_updates | OFF |
| lower_case_file_system | OFF |
| lower_case_table_names | 0 |
| max_allowed_packet | 1073740800 |
| max_binlog_cache_size | 4294967295 |
| max_binlog_size | 104857600 |
| max_connect_errors | 10 |
| max_connections | 300 |
| max_delayed_threads | 20 |
| max_error_count | 64 |
| max_heap_table_size | 16777216 |
| max_insert_delayed_threads | 20 |
| max_join_size | 18446744073709551615 |
| max_length_for_sort_data | 1024 |
| max_relay_log_size | 0 |
| max_seeks_for_key | 4294967295 |
| max_sort_length | 1024 |
| max_tmp_tables | 32 |
| max_user_connections | 0 |
| max_write_lock_count | 4294967295 |
| myisam_data_pointer_size | 4 |
| myisam_max_extra_sort_file_size | 2147483648 |
| myisam_max_sort_file_size | 2147483647 |
| myisam_recover_options | OFF |
| myisam_repair_threads | 1 |
| myisam_sort_buffer_size | 8388608 |
| myisam_stats_method | nulls_unequal |
| ndb_autoincrement_prefetch_sz | 32 |
| ndb_force_send | ON |
| ndb_use_exact_count | ON |
| ndb_use_transactions | OFF |
| net_buffer_length | 16384 |
| net_read_timeout | 30 |
| net_retry_count | 10 |
| net_write_timeout | 60 |
| new | OFF |
| old_passwords | OFF |
| open_files_limit | 1510 |
| pid_file | /var/run/mysqld/mysqld.pid |
| port | 3306 |
| preload_buffer_size | 32768 |
| protocol_version | 10 |
| query_alloc_block_size | 8192 |
| query_cache_limit | 16777216 |
| query_cache_min_res_unit | 4096 |
| query_cache_size | 102400 |
| 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 | 1 |
| skip_external_locking | ON |
| skip_networking | OFF |
| skip_show_database | OFF |
| slave_net_timeout | 3600 |
| slave_transaction_retries | 0 |
| slow_launch_time | 2 |
| socket | /var/run/mysqld/mysqld.sock |
| sort_buffer_size | 2097144 |
| sql_mode | |
| sql_notes | ON |
| sql_warnings | ON |
| storage_engine | MyISAM |
| sync_binlog | 0 |
| sync_frm | ON |
| sync_replication | 0 |
| sync_replication_slave_id | 0 |
| sync_replication_timeout | 0 |
| system_time_zone | CET |
| table_cache | 512 |
| table_type | MyISAM |
| thread_cache_size | 8 |
| thread_stack | 262144 |
| time_format | %H:%i:%s |
| time_zone | SYSTEM |
| tmp_table_size | 33554432 |
| tmpdir | /tmp |
| transaction_alloc_block_size | 8192 |
| transaction_prealloc_size | 4096 |
| tx_isolation | REPEATABLE-READ |
| version | 4.1.15-Debian_0.dotdeb.4-log |
| version_comment | Source distribution |
| version_compile_machine | i386 |
| version_compile_os | pc-linux-gnu |
| wait_timeout | 28800 |
+---------------------------------+------------------------------+
189 rows in set (0.01 sec)
my.cnf:
# * Basic Settings
#
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
language = /usr/share/mysql/english
skip-external-locking
#
# localhost which is more compatible and is not less secure.
#bind-address = 127.0.0.1
#
# * Fine Tuning
#
key_buffer = 32M
max_allowed_packet = 1G
thread_stack = 256K
thread_cache_size = 8
max_connections = 300
table_cache = 512
thread_concurrency = 20
#
# * Query Cache Configuration
#
query_cache_limit = 16M
query_cache_size = 100K
#
# * 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 = 4
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.log
# WARNING: Using expire_logs_days without bin_log crashes the server! See README.Debian!
expire_logs_days = 5
max_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]
quick
quote-names
max_allowed_packet = 612M
[mysql]
#no-auto-rehash # faster start of mysql but no tab completition
[isamchk]
key_buffer = 128M
please help..
sorry for bad english.....
[Updated on: Wed, 05 December 2007 14:07]
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| Re: cpu load 100% [message #2334 is a reply to message #2331 ] |
Wed, 05 December 2007 16:06  |
mesti
Messages: 7
Registered: December 2007 |
Junior Member |
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mysql> SHOW STATUS ;
+----------------------------+------------+
| Variable_name | Value |
+----------------------------+------------+
| Aborted_clients | 3540 |
| Aborted_connects | 2 |
| Binlog_cache_disk_use | 0 |
| Binlog_cache_use | 0 |
| Bytes_received | 49348886 |
| Bytes_sent | 2512562367 |
| Com_admin_commands | 5252 |
| Com_alter_db | 0 |
| Com_alter_table | 0 |
| Com_analyze | 0 |
| Com_backup_table | 0 |
| Com_begin | 0 |
| Com_change_db | 18806 |
| 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_dealloc_sql | 0 |
| Com_delete | 767 |
| Com_delete_multi | 0 |
| Com_do | 0 |
| Com_drop_db | 0 |
| Com_drop_function | 0 |
| Com_drop_index | 0 |
| Com_drop_table | 0 |
| Com_drop_user | 0 |
| Com_execute_sql | 0 |
| Com_flush | 0 |
| Com_grant | 0 |
| Com_ha_close | 0 |
| Com_ha_open | 0 |
| Com_ha_read | 0 |
| Com_help | 0 |
| Com_insert | 3926 |
| Com_insert_select | 0 |
| Com_kill | 0 |
| Com_load | 0 |
| Com_load_master_data | 0 |
| Com_load_master_table | 0 |
| Com_lock_tables | 4 |
| Com_optimize | 7 |
| 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 | 265725 |
| Com_set_option | 428 |
| Com_show_binlog_events | 0 |
| Com_show_binlogs | 1 |
| Com_show_charsets | 13 |
| Com_show_collations | 13 |
| Com_show_column_types | 0 |
| Com_show_create_db | 0 |
| Com_show_create_table | 372 |
| Com_show_databases | 13 |
| Com_show_errors | 0 |
| Com_show_fields | 248 |
| Com_show_grants | 7 |
| 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 | 0 |
| Com_show_slave_hosts | 0 |
| Com_show_slave_status | 0 |
| Com_show_status | 2 |
| Com_show_storage_engines | 0 |
| Com_show_tables | 395 |
| Com_show_variables | 35 |
| Com_show_warnings | 0 |
| Com_slave_start | 0 |
| Com_slave_stop | 0 |
| Com_stmt_close | 0 |
| Com_stmt_execute | 0 |
| Com_stmt_prepare | 0 |
| Com_stmt_reset | 0 |
| Com_stmt_send_long_data | 0 |
| Com_truncate | 0 |
| Com_unlock_tables | 4 |
| Com_update | 34342 |
| Com_update_multi | 3481 |
| Connections | 13117 |
| Created_tmp_disk_tables | 13 |
| Created_tmp_files | 9 |
| Created_tmp_tables | 24347 |
| Delayed_errors | 0 |
| Delayed_insert_threads | 0 |
| Delayed_writes | 0 |
| Flush_commands | 1 |
| Handler_commit | 0 |
| Handler_delete | 2366 |
| Handler_discover | 0 |
| Handler_read_first | 9433 |
| Handler_read_key | 565826 |
| Handler_read_next | 33616984 |
| Handler_read_prev | 14422 |
| Handler_read_rnd | 1588681 |
| Handler_read_rnd_next | 987408255 |
| Handler_rollback | 0 |
| Handler_update | 105713 |
| Handler_write | 65458 |
| Key_blocks_not_flushed | 0 |
| Key_blocks_unused | 52225 |
| Key_blocks_used | 5765 |
| Key_read_requests | 4927747 |
| Key_reads | 21262 |
| Key_write_requests | 61873 |
| Key_writes | 39608 |
| Max_used_connections | 242 |
| Not_flushed_delayed_rows | 0 |
| Open_files | 398 |
| Open_streams | 0 |
| Open_tables | 234 |
| Opened_tables | 712 |
| Qcache_free_blocks | 2 |
| Qcache_free_memory | 137312 |
| Qcache_hits | 230520 |
| Qcache_inserts | 224278 |
| Qcache_lowmem_prunes | 143039 |
| Qcache_not_cached | 41170 |
| Qcache_queries_in_cache | 54 |
| Qcache_total_blocks | 116 |
| Questions | 570348 |
| Rpl_status | NULL |
| Select_full_join | 57 |
| Select_full_range_join | 0 |
| Select_range | 5734 |
| Select_range_check | 0 |
| Select_scan | 39636 |
| Slave_open_temp_tables | 0 |
| Slave_retried_transactions | 0 |
| Slave_running | OFF |
| Slow_launch_threads | 27 |
| Slow_queries | 39979 |
| Sort_merge_passes | 3 |
| Sort_range | 6516 |
| Sort_rows | 1761065 |
| Sort_scan | 25291 |
| Table_locks_immediate | 366575 |
| Table_locks_waited | 2787 |
| Threads_cached | 0 |
| Threads_connected | 107 |
| Threads_created | 1053 |
| Threads_running | 3 |
| Uptime | 4214 |
+----------------------------+------------+
163 rows in set (0.00 sec)
my DB is 300mb
[Updated on: Wed, 05 December 2007 16:16]
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| Re: cpu load 100% [message #2543 is a reply to message #2542 ] |
Thu, 24 January 2008 21:53 |
MarkRose
Messages: 94
Registered: January 2008 |
Member |
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MySQL is unable to use any indexes. Can you show us the slow query, please?
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