Re: High memory usage on mysql slave server

[Santosh Bhabal]

mysql> show global status;
+-----------------------------------------------+-------------+
| Variable_name | Value |
+-----------------------------------------------+-------------+
| Aborted_clients | 0 |
| Aborted_connects | 0 |
| Binlog_cache_disk_use | 0 |
| Binlog_cache_use | 0 |
| Binlog_stmt_cache_disk_use | 0 |
| Binlog_stmt_cache_use | 0 |
| Bytes_received | 621483716 |
| Bytes_sent | 40816574197 |
| Com_admin_commands | 1 |
| 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_alter_user | 0 |
| Com_analyze | 0 |
| Com_begin | 1019795 |
| Com_binlog | 0 |
| Com_call_procedure | 2 |
| Com_change_db | 261 |
| Com_change_master | 0 |
| Com_check | 0 |
| Com_checksum | 0 |
| Com_commit | 1019789 |
| Com_create_db | 0 |
| Com_create_event | 0 |
| Com_create_function | 0 |
| Com_create_index | 0 |
| Com_create_procedure | 2 |
| 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 | 2 |
| Com_delete | 78 |
| 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 | 2 |
| 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 | 2 |
| Com_flush | 0 |
| Com_get_diagnostics | 0 |
| Com_grant | 0 |
| Com_ha_close | 0 |
| Com_ha_open | 0 |
| Com_ha_read | 0 |
| Com_help | 0 |
| Com_insert | 592466 |
| Com_insert_select | 0 |
| Com_install_plugin | 0 |
| Com_kill | 0 |
| Com_load | 0 |
| Com_lock_tables | 0 |
| Com_optimize | 0 |
| Com_preload_keys | 0 |
| Com_prepare_sql | 2 |
| Com_purge | 0 |
| Com_purge_before_date | 0 |
| Com_release_savepoint | 6 |
| Com_rename_table | 0 |
| Com_rename_user | 0 |
| Com_repair | 0 |
| Com_replace | 0 |
| Com_replace_select | 0 |
| Com_reset | 0 |
| Com_resignal | 0 |
| Com_revoke | 0 |
| Com_revoke_all | 0 |
| Com_rollback | 631 |
| Com_rollback_to_savepoint | 242 |
| Com_savepoint | 6 |
| Com_select | 693 |
| Com_set_option | 2092 |
| Com_signal | 0 |
| Com_show_binlog_events | 0 |
| Com_show_binlogs | 0 |
| Com_show_charsets | 0 |
| Com_show_collations | 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 | 349 |
| Com_show_create_trigger | 6 |
| Com_show_databases | 5 |
| 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 | 328 |
| Com_show_function_code | 0 |
| Com_show_function_status | 0 |
| Com_show_grants | 0 |
| Com_show_keys | 0 |
| Com_show_master_status | 0 |
| Com_show_open_tables | 0 |
| Com_show_plugins | 0 |
| Com_show_privileges | 0 |
| Com_show_procedure_code | 0 |
| Com_show_procedure_status | 0 |
| Com_show_processlist | 0 |
| Com_show_profile | 0 |
| Com_show_profiles | 0 |
| Com_show_relaylog_events | 0 |
| Com_show_slave_hosts | 0 |
| Com_show_slave_status | 105 |
| Com_show_status | 841 |
| Com_show_storage_engines | 0 |
| Com_show_table_status | 244 |
| Com_show_tables | 11 |
| Com_show_triggers | 242 |
| Com_show_variables | 646 |
| Com_show_warnings | 0 |
| Com_slave_start | 0 |
| Com_slave_stop | 0 |
| Com_stmt_close | 67 |
| Com_stmt_execute | 67 |
| Com_stmt_fetch | 0 |
| Com_stmt_prepare | 67 |
| Com_stmt_reprepare | 0 |
| Com_stmt_reset | 0 |
| Com_stmt_send_long_data | 0 |
| Com_truncate | 0 |
| Com_uninstall_plugin | 0 |
| Com_unlock_tables | 6 |
| Com_update | 427245 |
| 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 |
| Connection_errors_accept | 0 |
| Connection_errors_internal | 0 |
| Connection_errors_max_connections | 0 |
| Connection_errors_peer_address | 0 |
| Connection_errors_select | 0 |
| Connection_errors_tcpwrap | 0 |
| Connections | 665 |
| Created_tmp_disk_tables | 767 |
| Created_tmp_files | 8 |
| Created_tmp_tables | 3412 |
| Delayed_errors | 0 |
| Delayed_insert_threads | 0 |
| Delayed_writes | 0 |
| Flush_commands | 1 |
| Handler_commit | 1720800 |
| Handler_delete | 153318 |
| Handler_discover | 0 |
| Handler_external_lock | 2344488 |
| Handler_mrr_init | 0 |
| Handler_prepare | 0 |
| Handler_read_first | 2909 |
| Handler_read_key | 1375956 |
| Handler_read_last | 0 |
| Handler_read_next | 65760953 |
| Handler_read_prev | 0 |
| Handler_read_rnd | 180189 |
| Handler_read_rnd_next | 228391781 |
| Handler_rollback | 0 |
| Handler_savepoint | 6 |
| Handler_savepoint_rollback | 242 |
| Handler_update | 1253400 |
| Handler_write | 1839506 |
| Innodb_buffer_pool_dump_status | not started |
| Innodb_buffer_pool_load_status | not started |
| Innodb_buffer_pool_pages_data | 689435 |
| Innodb_buffer_pool_bytes_data | 11295703040 |
| Innodb_buffer_pool_pages_dirty | 3649 |
| Innodb_buffer_pool_bytes_dirty | 59785216 |
| Innodb_buffer_pool_pages_flushed | 222149 |
| Innodb_buffer_pool_pages_free | 65548 |
| Innodb_buffer_pool_pages_misc | 31417 |
| Innodb_buffer_pool_pages_total | 786400 |
| Innodb_buffer_pool_read_ahead_rnd | 0 |
| Innodb_buffer_pool_read_ahead | 2391199 |
| Innodb_buffer_pool_read_ahead_evicted | 0 |
| Innodb_buffer_pool_read_requests | 309002951 |
| Innodb_buffer_pool_reads | 304424 |
| Innodb_buffer_pool_wait_free | 0 |
| Innodb_buffer_pool_write_requests | 7704691 |
| Innodb_data_fsyncs | 968176 |
| Innodb_data_pending_fsyncs | 0 |
| Innodb_data_pending_reads | 0 |
| Innodb_data_pending_writes | 0 |
| Innodb_data_read | 44537384960 |
| Innodb_data_reads | 2718399 |
| Innodb_data_writes | 1105291 |
| Innodb_data_written | 8169699328 |
| Innodb_dblwr_pages_written | 222149 |
| Innodb_dblwr_writes | 77267 |
| Innodb_have_atomic_builtins | ON |
| Innodb_log_waits | 0 |
| Innodb_log_write_requests | 1173054 |
| Innodb_log_writes | 803495 |
| Innodb_os_log_fsyncs | 805803 |
| Innodb_os_log_pending_fsyncs | 0 |
| Innodb_os_log_pending_writes | 0 |
| Innodb_os_log_written | 889161728 |
| Innodb_page_size | 16384 |
| Innodb_pages_created | 9450 |
| Innodb_pages_read | 2718341 |
| Innodb_pages_written | 222149 |
| 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 | 434693 |
| Innodb_rows_read | 285648678 |
| Innodb_rows_updated | 496272 |
| Innodb_num_open_files | 51 |
| Innodb_truncated_status_writes | 0 |
| Innodb_available_undo_logs | 128 |
| Key_blocks_not_flushed | 0 |
| Key_blocks_unused | 3997 |
| Key_blocks_used | 2701 |
| Key_read_requests | 1551796 |
| Key_reads | 2641 |
| Key_write_requests | 396231 |
| Key_writes | 214664 |
| Last_query_cost | 0.000000 |
| Last_query_partial_plans | 0 |
| Max_used_connections | 2 |
| Not_flushed_delayed_rows | 0 |
| Open_files | 170 |
| Open_streams | 0 |
| Open_table_definitions | 185 |
| Open_tables | 188 |
| Opened_files | 5649 |
| Opened_table_definitions | 185 |
| Opened_tables | 195 |
| Performance_schema_accounts_lost | 0 |
| Performance_schema_cond_classes_lost | 0 |
| Performance_schema_cond_instances_lost | 0 |
| Performance_schema_digest_lost | 0 |
| Performance_schema_file_classes_lost | 0 |
| Performance_schema_file_handles_lost | 0 |
| Performance_schema_file_instances_lost | 0 |
| Performance_schema_hosts_lost | 0 |
| Performance_schema_locker_lost | 0 |
| Performance_schema_mutex_classes_lost | 0 |
| Performance_schema_mutex_instances_lost | 0 |
| Performance_schema_rwlock_classes_lost | 0 |
| Performance_schema_rwlock_instances_lost | 0 |
| Performance_schema_session_connect_attrs_lost | 0 |
| Performance_schema_socket_classes_lost | 0 |
| Performance_schema_socket_instances_lost | 0 |
| Performance_schema_stage_classes_lost | 0 |
| Performance_schema_statement_classes_lost | 0 |
| Performance_schema_table_handles_lost | 0 |
| Performance_schema_table_instances_lost | 0 |
| Performance_schema_thread_classes_lost | 0 |
| Performance_schema_thread_instances_lost | 0 |
| Performance_schema_users_lost | 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 | 2430543 |
| Questions | 7384 |
| Select_full_join | 18 |
| Select_full_range_join | 0 |
| Select_range | 7 |
| Select_range_check | 0 |
| Select_scan | 2639 |
| Slave_heartbeat_period | 1800.000 |
| Slave_last_heartbeat | |
| Slave_open_temp_tables | 0 |
| Slave_received_heartbeats | 0 |
| Slave_retried_transactions | 0 |
| Slave_running | ON |
| Slow_launch_threads | 0 |
| Slow_queries | 26 |
| Sort_merge_passes | 1 |
| Sort_range | 0 |
| Sort_rows | 29455 |
| Sort_scan | 74 |
| 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_server_not_after | |
| Ssl_server_not_before | |
| 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 | 1170116 |
| Table_locks_waited | 0 |
| Table_open_cache_hits | 1172596 |
| Table_open_cache_misses | 195 |
| Table_open_cache_overflows | 0 |
| Tc_log_max_pages_used | 0 |
| Tc_log_page_size | 0 |
| Tc_log_page_waits | 0 |
| Threads_cached | 1 |
| Threads_connected | 1 |
| Threads_created | 2 |
| Threads_running | 1 |
| Uptime | 62876 |
| Uptime_since_flush_status | 62876 |
+-----------------------------------------------+-------------+
341 rows in set (0.00 sec)

mysql>