Is the status information correct? > mysql Ver 14.12 Distrib 5.0.27, for Win32 (ia32) Are you using some sort of vm? Kyong
On Mon, Sep 21, 2009 at 12:23 PM, Lawrence Robertson <lawrobert...@yahoo.com> wrote: > Hi. > > We have some MySql servers in a circular replication, and one of the servers > is having some performance issues for some weeks. I tried with mysqlcheck and > nothing is wrong. I'm logging the slow queries and there's nothing wrong. > > The complete database in this server is like 1GB when it's GZipped. And > almost 10GB in the /var/lib/mysql directories, without bin-logs or ibdata > files. It's a CentOS 4.4 Linux and a MySql 5.0.27 server. > > > Here is my STATUS, SHOW STATUS, SHOW VARIABLES and TOP output. Hope it's > useful. > > mysql> status > -------------- > mysql Ver 14.12 Distrib 5.0.27, for Win32 (ia32) > > Connection id: 30 > Current database: > Current user: r...@192.168.0.142 > SSL: Not in use > Using delimiter: ; > Server version: 5.0.26-standard-log > Protocol version: 10 > Connection: 192.168.0.19 via TCP/IP > Server characterset: latin1 > Db characterset: latin1 > Client characterset: latin1 > Conn. characterset: latin1 > TCP port: 6419 > Uptime: 17 min 46 sec > > Threads: 17 Questions: 314 Slow queries: 0 Opens: 37 Flush tables: 1 > Open t > ables: 31 Queries per second avg: 0.295 > -------------- > > > mysql> show status; > +-----------------------------------+-----------+ > | Variable_name | Value | > +-----------------------------------+-----------+ > | Aborted_clients | 2 | > | Aborted_connects | 0 | > | Binlog_cache_disk_use | 0 | > | Binlog_cache_use | 0 | > | Bytes_received | 782 | > | Bytes_sent | 14389 | > | Com_admin_commands | 0 | > | Com_alter_db | 0 | > | Com_alter_table | 0 | > | Com_analyze | 0 | > | Com_backup_table | 0 | > | Com_begin | 0 | > | Com_change_db | 0 | > | 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 | 0 | > | 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 | 0 | > | Com_insert_select | 0 | > | Com_kill | 0 | > | Com_load | 0 | > | Com_load_master_data | 0 | > | Com_load_master_table | 0 | > | Com_lock_tables | 0 | > | Com_optimize | 0 | > | Com_preload_keys | 0 | > | Com_prepare_sql | 0 | > | Com_purge | 0 | > | Com_purge_before_date | 0 | > | Com_rename_table | 0 | > | Com_repair | 0 | > | Com_replace | 0 | > | Com_replace_select | 0 | > | Com_reset | 0 | > | Com_restore_table | 0 | > | Com_revoke | 0 | > | Com_revoke_all | 0 | > | Com_rollback | 0 | > | Com_savepoint | 0 | > | Com_select | 8 | > | Com_set_option | 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_create_db | 0 | > | Com_show_create_table | 0 | > | Com_show_databases | 0 | > | Com_show_errors | 0 | > | Com_show_fields | 0 | > | Com_show_grants | 0 | > | Com_show_innodb_status | 0 | > | Com_show_keys | 0 | > | Com_show_logs | 0 | > | Com_show_master_status | 0 | > | Com_show_ndb_status | 0 | > | Com_show_new_master | 0 | > | Com_show_open_tables | 0 | > | Com_show_privileges | 0 | > | Com_show_processlist | 0 | > | Com_show_slave_hosts | 0 | > | Com_show_slave_status | 0 | > | Com_show_status | 7 | > | Com_show_storage_engines | 0 | > | Com_show_tables | 0 | > | Com_show_triggers | 0 | > | Com_show_variables | 0 | > | Com_show_warnings | 0 | > | Com_slave_start | 0 | > | Com_slave_stop | 0 | > | Com_stmt_close | 0 | > | Com_stmt_execute | 0 | > | Com_stmt_fetch | 0 | > | Com_stmt_prepare | 0 | > | Com_stmt_reset | 0 | > | Com_stmt_send_long_data | 0 | > | Com_truncate | 0 | > | Com_unlock_tables | 0 | > | Com_update | 0 | > | Com_update_multi | 0 | > | Com_xa_commit | 0 | > | Com_xa_end | 0 | > | Com_xa_prepare | 0 | > | Com_xa_recover | 0 | > | Com_xa_rollback | 0 | > | Com_xa_start | 0 | > | Compression | OFF | > | Connections | 47 | > | Created_tmp_disk_tables | 0 | > | Created_tmp_files | 5 | > | Created_tmp_tables | 3 | > | Delayed_errors | 0 | > | Delayed_insert_threads | 0 | > | Delayed_writes | 0 | > | Flush_commands | 1 | > | Handler_commit | 0 | > | Handler_delete | 0 | > | Handler_discover | 0 | > | Handler_prepare | 0 | > | Handler_read_first | 0 | > | Handler_read_key | 0 | > | Handler_read_next | 0 | > | Handler_read_prev | 0 | > | Handler_read_rnd | 0 | > | Handler_read_rnd_next | 492 | > | Handler_rollback | 0 | > | Handler_savepoint | 0 | > | Handler_savepoint_rollback | 0 | > | Handler_update | 0 | > | Handler_write | 620 | > | Innodb_buffer_pool_pages_data | 161 | > | Innodb_buffer_pool_pages_dirty | 0 | > | Innodb_buffer_pool_pages_flushed | 18 | > | Innodb_buffer_pool_pages_free | 48991 | > | Innodb_buffer_pool_pages_latched | 2 | > | Innodb_buffer_pool_pages_misc | 0 | > | Innodb_buffer_pool_pages_total | 49152 | > | Innodb_buffer_pool_read_ahead_rnd | 1 | > | Innodb_buffer_pool_read_ahead_seq | 0 | > | Innodb_buffer_pool_read_requests | 325529426 | > | Innodb_buffer_pool_reads | 102 | > | Innodb_buffer_pool_wait_free | 0 | > | Innodb_buffer_pool_write_requests | 22 | > | Innodb_data_fsyncs | 29 | > | Innodb_data_pending_fsyncs | 0 | > | Innodb_data_pending_reads | 0 | > | Innodb_data_pending_writes | 0 | > | Innodb_data_read | 4820992 | > | Innodb_data_reads | 133 | > | Innodb_data_writes | 37 | > | Innodb_data_written | 598016 | > | Innodb_dblwr_pages_written | 18 | > | Innodb_dblwr_writes | 5 | > | Innodb_log_waits | 0 | > | Innodb_log_write_requests | 2 | > | Innodb_log_writes | 7 | > | Innodb_os_log_fsyncs | 14 | > | Innodb_os_log_pending_fsyncs | 0 | > | Innodb_os_log_pending_writes | 0 | > | Innodb_os_log_written | 4608 | > | Innodb_page_size | 16384 | > | Innodb_pages_created | 0 | > | Innodb_pages_read | 161 | > | Innodb_pages_written | 18 | > | Innodb_row_lock_current_waits | 0 | > | Innodb_row_lock_time | 0 | > | Innodb_row_lock_time_avg | 0 | > | Innodb_row_lock_time_max | 0 | > | Innodb_row_lock_waits | 0 | > | Innodb_rows_deleted | 0 | > | Innodb_rows_inserted | 0 | > | Innodb_rows_read | 2795 | > | Innodb_rows_updated | 0 | > | Key_blocks_not_flushed | 0 | > | Key_blocks_unused | 646466 | > | Key_blocks_used | 252 | > | Key_read_requests | 1912 | > | Key_reads | 252 | > | Key_write_requests | 155 | > | Key_writes | 123 | > | Last_query_cost | 0.000000 | > | Max_used_connections | 19 | > | Not_flushed_delayed_rows | 0 | > | Open_files | 68 | > | Open_streams | 0 | > | Open_tables | 31 | > | Opened_tables | 0 | > | Qcache_free_blocks | 1 | > | Qcache_free_memory | 67032416 | > | Qcache_hits | 52 | > | Qcache_inserts | 36 | > | Qcache_lowmem_prunes | 0 | > | Qcache_not_cached | 31 | > | Qcache_queries_in_cache | 36 | > | Qcache_total_blocks | 79 | > | Questions | 324 | > | Rpl_status | NULL | > | Select_full_join | 0 | > | Select_full_range_join | 0 | > | Select_range | 0 | > | Select_range_check | 0 | > | Select_scan | 3 | > | Slave_open_temp_tables | 0 | > | Slave_retried_transactions | 0 | > | Slave_running | ON | > | Slow_launch_threads | 0 | > | Slow_queries | 0 | > | Sort_merge_passes | 0 | > | Sort_range | 0 | > | Sort_rows | 0 | > | Sort_scan | 0 | > | 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 | 193 | > | Table_locks_waited | 0 | > | Tc_log_max_pages_used | 0 | > | Tc_log_page_size | 0 | > | Tc_log_page_waits | 0 | > | Threads_cached | 2 | > | Threads_connected | 17 | > | Threads_created | 19 | > | Threads_running | 10 | > | Uptime | 1109 | > +-----------------------------------+-----------+ > 245 rows in set (0.00 sec) > > mysql> show variables; > +---------------------------------+------------------------------------------+ > | Variable_name | Value | > +---------------------------------+------------------------------------------+ > | auto_increment_increment | 1 | > | auto_increment_offset | 1 | > | automatic_sp_privileges | ON | > | back_log | 50 | > | basedir | / | > | binlog_cache_size | 32768 | > | bulk_insert_buffer_size | 8388608 | > | character_set_client | latin1 | > | character_set_connection | latin1 | > | character_set_database | latin1 | > | character_set_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 | YES | > | have_bdb | NO | > | 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 | 41943040 | > | innodb_autoextend_increment | 8 | > | innodb_buffer_pool_awe_mem_mb | 0 | > | innodb_buffer_pool_size | 805306368 | > | innodb_checksums | ON | > | innodb_commit_concurrency | 0 | > | innodb_concurrency_tickets | 500 | > | innodb_data_file_path | ibdata1:512M;ibdata2:10M:autoextend | > | innodb_data_home_dir | /var/lib/mysql/ | > | innodb_doublewrite | ON | > | innodb_fast_shutdown | 1 | > | innodb_file_io_threads | 4 | > | innodb_file_per_table | ON | > | 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 | /var/lib/mysql/ | > | innodb_log_archive | OFF | > | innodb_log_buffer_size | 33554432 | > | innodb_log_file_size | 536870912 | > | innodb_log_files_in_group | 2 | > | innodb_log_group_home_dir | /var/lib/mysql/ | > | innodb_max_dirty_pages_pct | 90 | > | innodb_max_purge_lag | 0 | > | innodb_mirrored_log_groups | 1 | > | innodb_open_files | 300 | > | 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 | 805306368 | > | 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 | ON | > | log_bin_trust_function_creators | OFF | > | log_error | | > | log_queries_not_using_indexes | OFF | > | log_slave_updates | ON | > | log_slow_queries | ON | > | log_warnings | 1 | > | long_query_time | 1 | > | low_priority_updates | OFF | > | lower_case_file_system | OFF | > | lower_case_table_names | 0 | > | max_allowed_packet | 1047552 | > | max_binlog_cache_size | 18446744073709551615 | > | max_binlog_size | 52428800 | > | max_connect_errors | 10 | > | max_connections | 200 | > | 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_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 | > | multi_range_count | 256 | > | myisam_data_pointer_size | 6 | > | myisam_max_sort_file_size | 9223372036854775807 | > | myisam_recover_options | OFF | > | myisam_repair_threads | 1 | > | myisam_sort_buffer_size | 134217728 | > | 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 | 1234 | > | optimizer_prune_level | 1 | > | optimizer_search_depth | 62 | > | pid_file | /var/lib/mysql/server6419.pid | > | port | 6419 | > | preload_buffer_size | 32768 | > | prepared_stmt_count | 0 | > | protocol_version | 10 | > | 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 | > | range_alloc_block_size | 2048 | > | read_buffer_size | 4190208 | > | read_only | OFF | > | read_rnd_buffer_size | 16773120 | > | relay_log_purge | ON | > | relay_log_space_limit | 0 | > | rpl_recovery_rank | 0 | > | secure_auth | OFF | > | server_id | 19 | > | 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 | 4194296 | > | 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 | CDT | > | table_cache | 512 | > | table_lock_wait_timeout | 50 | > | table_type | MyISAM | > | thread_cache_size | 8 | > | thread_stack | 262144 | > | 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 | 5.0.26-standard-log | > | version_comment | MySQL Community Edition - Standard (GPL) | > | version_compile_machine | x86_64 | > | version_compile_os | unknown-linux-gnu | > | wait_timeout | 28800 | > +---------------------------------+------------------------------------------+ > 220 rows in set (0.00 sec) > > [r...@server6419 ~]# top > top - 14:06:21 up 1:58, 3 users, load average: 0.93, 0.97, 0.89 > Tasks: 108 total, 2 running, 106 sleeping, 0 stopped, 0 zombie > Cpu(s): 49.9% us, 0.2% sy, 0.0% ni, 49.9% id, 0.0% wa, 0.0% hi, 0.0% si > Mem: 2048128k total, 1356920k used, 691208k free, 41012k buffers > Swap: 2031608k total, 0k used, 2031608k free, 844688k cached > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 4812 mysql 16 0 1844m 246m 3900 S 100 12.3 23:44.19 mysqld > 3214 root 16 0 18572 5832 1264 S 0 0.3 0:01.53 hald > 1 root 16 0 4756 548 456 S 0 0.0 0:00.51 init > 2 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0 > 3 root 34 19 0 0 0 S 0 0.0 0:00.00 ksoftirqd/0 > 4 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/1 > 5 root 34 19 0 0 0 S 0 0.0 0:00.00 ksoftirqd/1 > > > Thanks a lot! > > -- > MySQL General Mailing List > For list archives: http://lists.mysql.com/mysql > To unsubscribe: http://lists.mysql.com/mysql?unsub=kykim...@gmail.com > >
