?
Solved

Mysql performance

Posted on 2011-02-25
3
Medium Priority
?
402 Views
Last Modified: 2012-08-14
I am having many problems with the performance of mySQL. I need to restart it about every 6 to 7 hours. I am attaching an export of the show status result if it could do any help:

Thanks!!
"Aborted_clients"	"340"
"Aborted_connects"	"2"
"Binlog_cache_disk_use"	"0"
"Binlog_cache_use"	"0"
"Bytes_received"	"119"
"Bytes_sent"	"372"
"Com_admin_commands"	"0"
"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"	"0"
"Com_alter_tablespace"	"0"
"Com_analyze"	"0"
"Com_backup_table"	"0"
"Com_begin"	"0"
"Com_binlog"	"0"
"Com_call_procedure"	"0"
"Com_change_db"	"0"
"Com_change_master"	"0"
"Com_check"	"0"
"Com_checksum"	"0"
"Com_commit"	"0"
"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"	"0"
"Com_create_trigger"	"0"
"Com_create_udf"	"0"
"Com_create_user"	"0"
"Com_create_view"	"0"
"Com_dealloc_sql"	"0"
"Com_delete"	"0"
"Com_delete_multi"	"0"
"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"	"0"
"Com_drop_trigger"	"0"
"Com_drop_user"	"0"
"Com_drop_view"	"0"
"Com_empty_query"	"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_install_plugin"	"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_release_savepoint"	"0"
"Com_rename_table"	"0"
"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"	"0"
"Com_rollback_to_savepoint"	"0"
"Com_savepoint"	"0"
"Com_select"	"0"
"Com_set_option"	"2"
"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"	"0"
"Com_show_create_trigger"	"0"
"Com_show_databases"	"1"
"Com_show_engine_logs"	"0"
"Com_show_engine_mutex"	"0"
"Com_show_engine_status"	"0"
"Com_show_events"	"0"
"Com_show_errors"	"0"
"Com_show_fields"	"0"
"Com_show_function_status"	"0"
"Com_show_grants"	"0"
"Com_show_keys"	"0"
"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"	"0"
"Com_show_profile"	"0"
"Com_show_profiles"	"0"
"Com_show_slave_hosts"	"0"
"Com_show_slave_status"	"0"
"Com_show_status"	"1"
"Com_show_storage_engines"	"0"
"Com_show_table_status"	"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_reprepare"	"0"
"Com_stmt_reset"	"0"
"Com_stmt_send_long_data"	"0"
"Com_truncate"	"0"
"Com_uninstall_plugin"	"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"	"387478"
"Created_tmp_disk_tables"	"0"
"Created_tmp_files"	"5"
"Created_tmp_tables"	"1"
"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"	"15"
"Handler_rollback"	"0"
"Handler_savepoint"	"0"
"Handler_savepoint_rollback"	"0"
"Handler_update"	"0"
"Handler_write"	"14"
"Innodb_buffer_pool_pages_data"	"35"
"Innodb_buffer_pool_pages_dirty"	"0"
"Innodb_buffer_pool_pages_flushed"	"0"
"Innodb_buffer_pool_pages_free"	"989"
"Innodb_buffer_pool_pages_misc"	"0"
"Innodb_buffer_pool_pages_total"	"1024"
"Innodb_buffer_pool_read_ahead_rnd"	"1"
"Innodb_buffer_pool_read_ahead_seq"	"0"
"Innodb_buffer_pool_read_requests"	"109"
"Innodb_buffer_pool_reads"	"12"
"Innodb_buffer_pool_wait_free"	"0"
"Innodb_buffer_pool_write_requests"	"0"
"Innodb_data_fsyncs"	"3"
"Innodb_data_pending_fsyncs"	"0"
"Innodb_data_pending_reads"	"0"
"Innodb_data_pending_writes"	"0"
"Innodb_data_read"	"2756608"
"Innodb_data_reads"	"45"
"Innodb_data_writes"	"3"
"Innodb_data_written"	"1536"
"Innodb_dblwr_pages_written"	"0"
"Innodb_dblwr_writes"	"0"
"Innodb_log_waits"	"0"
"Innodb_log_write_requests"	"0"
"Innodb_log_writes"	"1"
"Innodb_os_log_fsyncs"	"3"
"Innodb_os_log_pending_fsyncs"	"0"
"Innodb_os_log_pending_writes"	"0"
"Innodb_os_log_written"	"512"
"Innodb_page_size"	"16384"
"Innodb_pages_created"	"0"
"Innodb_pages_read"	"35"
"Innodb_pages_written"	"0"
"Innodb_row_lock_current_waits"	"0"
"Innodb_row_lock_time"	"0"
"Innodb_row_lock_time_avg"	"0"
"Innodb_row_lock_time_max"	"0"
"Innodb_row_lock_waits"	"0"
"Innodb_rows_deleted"	"0"
"Innodb_rows_inserted"	"0"
"Innodb_rows_read"	"0"
"Innodb_rows_updated"	"0"
"Key_blocks_not_flushed"	"2801"
"Key_blocks_unused"	"0"
"Key_blocks_used"	"14347"
"Key_read_requests"	"498674751"
"Key_reads"	"821584"
"Key_write_requests"	"85264551"
"Key_writes"	"2379957"
"Last_query_cost"	"10.499000"
"Max_used_connections"	"24"
"Not_flushed_delayed_rows"	"0"
"Open_files"	"64"
"Open_streams"	"0"
"Open_table_definitions"	"26"
"Open_tables"	"39"
"Opened_files"	"47210"
"Opened_table_definitions"	"0"
"Opened_tables"	"0"
"Prepared_stmt_count"	"0"
"Qcache_free_blocks"	"0"
"Qcache_free_memory"	"0"
"Qcache_hits"	"0"
"Qcache_inserts"	"0"
"Qcache_lowmem_prunes"	"0"
"Qcache_not_cached"	"0"
"Qcache_queries_in_cache"	"0"
"Qcache_total_blocks"	"0"
"Queries"	"1458252"
"Questions"	"4"
"Rpl_status"	"NULL"
"Select_full_join"	"0"
"Select_full_range_join"	"0"
"Select_range"	"0"
"Select_range_check"	"0"
"Select_scan"	"1"
"Slave_open_temp_tables"	"0"
"Slave_retried_transactions"	"0"
"Slave_running"	"OFF"
"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"	"648579"
"Table_locks_waited"	"37690"
"Tc_log_max_pages_used"	"0"
"Tc_log_page_size"	"0"
"Tc_log_page_waits"	"0"
"Threads_cached"	"0"
"Threads_connected"	"12"
"Threads_created"	"387477"
"Threads_running"	"11"
"Uptime"	"133884"
"Uptime_since_flush_status"	"133884"

Open in new window

0
Comment
Question by:infodigger
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 70

Accepted Solution

by:
Jason C. Levine earned 2000 total points
ID: 34985636
Hi infodigger,

The problem will most likely be in your mySQL queries.  You will need to analyze your application to see if there is a query that takes up undue resources and concentrate on fixing that.
0
 

Author Closing Comment

by:infodigger
ID: 34986133
Thanks!
0
 
LVL 111

Expert Comment

by:Ray Paseur
ID: 34992103
Learn about EXPLAIN SELECT - it will be very helpful.  Best regards, ~Ray
0

Featured Post

Use Case: Protecting a Hybrid Cloud Infrastructure

Microsoft Azure is rapidly becoming the norm in dynamic IT environments. This document describes the challenges that organizations face when protecting data in a hybrid cloud IT environment and presents a use case to demonstrate how Acronis Backup protects all data.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When table data gets too large to manage or queries take too long to execute the solution is often to buy bigger hardware or assign more CPUs and memory resources to the machine to solve the problem. However, the best, cheapest and most effective so…
In this blog post, we’ll look at how using thread_statistics can cause high memory usage.
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
In this video, Percona Solutions Engineer Barrett Chambers discusses some of the basic syntax differences between MySQL and MongoDB. To learn more check out our webinar on MongoDB administration for MySQL DBA: https://www.percona.com/resources/we…
Suggested Courses

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question