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Re: Table freeze when size exceeds innodb buffer pool size
Posted by: newbie Shai
Date: September 27, 2017 01:05PM

Dear Peter,

For the final query I got error when I tried to run this.
show global table status;
then I tried show global status;

I would like to learn based on these 3 output what could we learn and further optimise any mysql system?

Variable_name Value
Aborted_clients 53
Aborted_connects 6
Binlog_cache_disk_use 0
Binlog_cache_use 0
Bytes_received 12109221041
Bytes_sent 14099691509
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 15
Com_alter_tablespace 0
Com_analyze 0
Com_backup_table 0
Com_begin 0
Com_binlog 0
Com_call_procedure 0
Com_change_db 3075
Com_change_master 0
Com_check 0
Com_checksum 0
Com_commit 3302814
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 5922746
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 63474
Com_rollback_to_savepoint 0
Com_savepoint 0
Com_select 37636305
Com_set_option 5320259
Com_show_authors 0
Com_show_binlog_events 0
Com_show_binlogs 48
Com_show_charsets 0
Com_show_collations 419316
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 757
Com_show_create_trigger 0
Variable_name Value
Com_show_databases 113
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 1100
Com_show_function_status 0
Com_show_grants 48
Com_show_keys 344
Com_show_master_status 48
Com_show_new_master 0
Com_show_open_tables 0
Com_show_plugins 44
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 48
Com_show_status 3
Com_show_storage_engines 0
Com_show_table_status 1792
Com_show_tables 46389
Com_show_triggers 0
Com_show_variables 419464
Com_show_warnings 1
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 21509263
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 428308
Created_tmp_disk_tables 1128
Created_tmp_files 5
Created_tmp_tables 889690
Delayed_errors 0
Delayed_insert_threads 0
Delayed_writes 0
Flush_commands 1
Handler_commit 64576938
Handler_delete 0
Handler_discover 0
Handler_prepare 0
Handler_read_first 17818
Handler_read_key 127528716
Handler_read_next 6117004066
Handler_read_prev 957754869
Handler_read_rnd 1350374
Handler_read_rnd_next 1115408667
Handler_rollback 5676
Handler_savepoint 0
Handler_savepoint_rollback 0
Handler_update 21468590
Handler_write 71736657
Innodb_buffer_pool_pages_data 626394
Innodb_buffer_pool_pages_dirty 90
Innodb_buffer_pool_pages_flushed 7487086
Innodb_buffer_pool_pages_free 734766
Innodb_buffer_pool_pages_misc 15096
Innodb_buffer_pool_pages_total 1376256
Innodb_buffer_pool_read_ahead_rnd 5
Innodb_buffer_pool_read_ahead_seq 5938
Innodb_buffer_pool_read_requests 13423493396
Innodb_buffer_pool_reads 166543
Innodb_buffer_pool_wait_free 0
Innodb_buffer_pool_write_requests 196024932
Innodb_data_fsyncs 17104275
Innodb_data_pending_fsyncs 0
Innodb_data_pending_reads 0
Innodb_data_pending_writes 0
Innodb_data_read 7296143360
Innodb_data_reads 179387
Innodb_data_writes 21863681
Innodb_data_written 269506016256
Innodb_dblwr_pages_written 7487086
Innodb_dblwr_writes 152835
Innodb_log_waits 0
Innodb_log_write_requests 40118188
Innodb_log_writes 16298581
Innodb_os_log_fsyncs 16385222
Innodb_os_log_pending_fsyncs 0
Innodb_os_log_pending_writes 0
Variable_name Value
Innodb_os_log_written 24123085824
Innodb_page_size 16384
Innodb_pages_created 278808
Innodb_pages_read 445188
Innodb_pages_written 7487086
Innodb_row_lock_current_waits 0
Innodb_row_lock_time 5707547
Innodb_row_lock_time_avg 1309
Innodb_row_lock_time_max 120932
Innodb_row_lock_waits 4358
Innodb_rows_deleted 0
Innodb_rows_inserted 9979177
Innodb_rows_read 7847321639
Innodb_rows_updated 21468557
Key_blocks_not_flushed 0
Key_blocks_unused 6694
Key_blocks_used 0
Key_read_requests 0
Key_reads 0
Key_write_requests 0
Key_writes 0
Last_query_cost 0.000000
Max_used_connections 57
Not_flushed_delayed_rows 0
Open_files 47
Open_streams 0
Open_table_definitions 35
Open_tables 64
Opened_files 4727
Opened_table_definitions 79
Opened_tables 18625
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 75075704
Questions 75075704
Rpl_status NULL
Select_full_join 0
Select_full_range_join 0
Select_range 289007
Select_range_check 0
Select_scan 907314
Slave_open_temp_tables 0
Slave_retried_transactions 0
Slave_running OFF
Slow_launch_threads 0
Slow_queries 20084
Sort_merge_passes 0
Sort_range 316605
Sort_rows 54661893
Sort_scan 1860
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 62579590
Table_locks_waited 108
Tc_log_max_pages_used 0
Tc_log_page_size 0
Tc_log_page_waits 0
Threads_cached 0
Threads_connected 21
Threads_created 428307
Threads_running 1
Uptime 898882
Uptime_since_flush_status 898882

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