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High memory used by MySQL
Posted by: Damian Kolany
Date: February 12, 2020 02:45AM

Hi everyone.
I faced an issue with increasing memory on my server becouse of my mysql.
He never stop eating my RAM :) and he need one day sometimes few days to eat all. That's why
i need to make restart from time to time otherwise OOM killer will do it for me ...

I read many topics about it, but still without success.
Please for any advice in this case, below more technical details.

Im using virtual machine with ubuntu 18.04 on board.
( it's production server )

RAM: 16GB
CPU: 16-core
SWAP: 4GB
vm.swappiness = 60

Distributor ID: Ubuntu
Description: Ubuntu 18.04.4 LTS
Release: 18.04
Codename: bionic

mysql Ver 14.14 Distrib 5.7.29, for Linux (x86_64) using EditLine wrapper

[client]
port=3306
socket=/var/run/mysqld/mysqld.sock

[mysqld_safe]
socket=/var/run/mysqld/mysqld.sock

[mysqld]
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
lc-messages-dir=/usr/share/mysql
log_error=/var/log/mysql/error.log
#general_log=on
#general_log_file=/var/log/mysql/query.log

symbolic-links=0

skip-external-locking
key_buffer_size = 100M
max_allowed_packet = 100M
open_files_limit = 5000
table_open_cache = 2048
table_definition_cache = 2048
sort_buffer_size = 512K
read_buffer_size = 512K
read_rnd_buffer_size = 4M
myisam_sort_buffer_size = 64M
thread_cache_size = 50
query_cache_size = 0
tmp_table_size = 128M
join_buffer_size = 512K
query_cache_type = 0
innodb_file_per_table = 1
innodb_log_files_in_group = 2
innodb_log_file_size = 650M
innodb_flush_log_at_trx_commit = 1
innodb_file_per_table = 1
innodb_buffer_pool_size = 6G
innodb_buffer_pool_instances = 2
innodb_lock_wait_timeout = 600
max_heap_table_size = 128M
max_connections=200
max_user_connections=200
wait_timeout=600
interactive_timeout=500
long_query_time= 5


sql_mode = STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION


!includedir /etc/mysql/conf.d/


free -m
total used free shared buff/cache available
Mem: 16038 14758 253 5 1027 954
Swap: 4095 1260 2835


top -b
top - 08:01:28 up 304 days, 18:45, 9 users, load average: 2.74, 1.29, 0.83
Tasks: 282 total, 2 running, 174 sleeping, 0 stopped, 4 zombie
%Cpu(s): 5.6 us, 0.4 sy, 0.0 ni, 92.9 id, 1.1 wa, 0.0 hi, 0.1 si, 0.0 st
KiB Mem : 16423680 total, 158976 free, 15008160 used, 1256544 buff/cache
KiB Swap: 4194300 total, 2808044 free, 1386256 used. 1083244 avail Mem

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
20323 mysql 20 0 20.553g 0.013t 5460 S 105.9 87.2 597:59.94 mysqld
23760 root 20 0 8792 2528 2288 R 94.1 0.0 0:29.23 zip
23874 root 20 0 44668 4060 3336 R 5.9 0.0 0:00.02 top
1 root 20 0 225680 5320 3252 S 0.0 0.0 317:39.18 systemd


show global status


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Value: 2
Variable_name: Aborted_connects
Value: 0
Variable_name: Binlog_cache_disk_use
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Variable_name: Binlog_cache_use
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Variable_name: Binlog_stmt_cache_disk_use
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Variable_name: Com_create_index
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Variable_name: Com_create_table
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Variable_name: Com_create_trigger
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Variable_name: Com_help
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Variable_name: Com_insert_select
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Variable_name: Com_install_plugin
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Variable_name: Locked_connects
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Variable_name: Performance_schema_thread_classes_lost
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Variable_name: Performance_schema_users_lost
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Variable_name: Queries
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Variable_name: Slave_open_temp_tables
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Variable_name: Sort_range
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Variable_name: Sort_rows
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Variable_name: Sort_scan
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Variable_name: Ssl_accept_renegotiates
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Variable_name: Ssl_accepts
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Variable_name: Ssl_callback_cache_hits
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Variable_name: Ssl_cipher
Value:
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Value:
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Variable_name: Ssl_ctx_verify_depth
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Variable_name: Ssl_server_not_after
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Value:
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Variable_name: Tc_log_max_pages_used
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Variable_name: Threads_running
Value: 2
Variable_name: Uptime
Value: 87645
Variable_name: Uptime_since_flush_status
Value: 87645


+--------+---------+---------+---------+
| engine | data | indexes | total |
+--------+---------+---------+---------+
| InnoDB | 2.99 GB | 1.84 GB | 4.82 GB |
| MyISAM | 0.12 GB | 0.04 GB | 0.16 GB |
| CSV | 0.00 GB | 0.00 GB | 0.00 GB |
| MEMORY | 0.00 GB | 0.00 GB | 0.00 GB |
| TOTALS | 3.10 GB | 1.88 GB | 4.98 GB |
+--------+---------+---------+---------+
5 rows in set (0.27 sec)


show variables

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Value: ON
Variable_name: auto_increment_increment
Value: 1
Variable_name: auto_increment_offset
Value: 1
Variable_name: autocommit
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Variable_name: automatic_sp_privileges
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Variable_name: binlog_cache_size
Value: 32768
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Value: CRC32
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Variable_name: binlog_error_action
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Value: 32768
Variable_name: binlog_transaction_dependency_history_size
Value: 25000
Variable_name: binlog_transaction_dependency_tracking
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Variable_name: block_encryption_mode
Value: aes-128-ecb
Variable_name: bulk_insert_buffer_size
Value: 8388608
Variable_name: character_set_client
Value: utf8
Variable_name: character_set_connection
Value: utf8
Variable_name: character_set_database
Value: latin1
Variable_name: character_set_filesystem
Value: binary
Variable_name: character_set_results
Value: utf8
Variable_name: character_set_server
Value: latin1
Variable_name: character_set_system
Value: utf8
Variable_name: character_sets_dir
Value: /usr/share/mysql/charsets/
Variable_name: check_proxy_users
Value: OFF
Variable_name: collation_connection
Value: utf8_general_ci
Variable_name: collation_database
Value: latin1_swedish_ci
Variable_name: collation_server
Value: latin1_swedish_ci
Variable_name: completion_type
Value: NO_CHAIN
Variable_name: concurrent_insert
Value: AUTO
Variable_name: connect_timeout
Value: 10
Variable_name: core_file
Value: OFF
Variable_name: datadir
Value: /var/lib/mysql/
Variable_name: date_format
Value: %Y-%m-%d
Variable_name: datetime_format
Value: %Y-%m-%d %H:%i:%s
Variable_name: default_authentication_plugin
Value: mysql_native_password
Variable_name: default_password_lifetime
Value: 0
Variable_name: default_storage_engine
Value: InnoDB
Variable_name: default_tmp_storage_engine
Value: InnoDB
Variable_name: default_week_format
Value: 0
Variable_name: delay_key_write
Value: ON
Variable_name: delayed_insert_limit
Value: 100
Variable_name: delayed_insert_timeout
Value: 300
Variable_name: delayed_queue_size
Value: 1000
Variable_name: disabled_storage_engines
Value:
Variable_name: disconnect_on_expired_password
Value: ON
Variable_name: div_precision_increment
Value: 4
Variable_name: end_markers_in_json
Value: OFF
Variable_name: enforce_gtid_consistency
Value: OFF
Variable_name: eq_range_index_dive_limit
Value: 200
Variable_name: error_count
Value: 0
Variable_name: event_scheduler
Value: OFF
Variable_name: expire_logs_days
Value: 0
Variable_name: explicit_defaults_for_timestamp
Value: OFF
Variable_name: external_user
Value: root
Variable_name: flush
Value: OFF
Variable_name: flush_time
Value: 0
Variable_name: foreign_key_checks
Value: ON
Variable_name: ft_boolean_syntax
Variable_name: ft_max_word_len
Value: 84
Variable_name: ft_min_word_len
Value: 4
Variable_name: ft_query_expansion_limit
Value: 20
Variable_name: ft_stopword_file
Value: (built-in)
Variable_name: general_log
Value: OFF
Variable_name: group_concat_max_len
Value: 1024
Variable_name: gtid_executed_compression_period
Value: 1000
Variable_name: gtid_mode
Value: OFF
Variable_name: gtid_next
Value: AUTOMATIC
Variable_name: gtid_owned
Value:
Variable_name: gtid_purged
Value:
Variable_name: have_compress
Value: YES
Variable_name: have_crypt
Value: YES
Variable_name: have_dynamic_loading
Value: YES
Variable_name: have_geometry
Value: YES
Variable_name: have_openssl
Value: YES
Variable_name: have_profiling
Value: YES
Variable_name: have_query_cache
Value: YES
Variable_name: have_rtree_keys
Value: YES
Variable_name: have_ssl
Value: YES
Variable_name: have_statement_timeout
Value: YES
Variable_name: have_symlink
Value: DISABLED
Variable_name: host_cache_size
Value: 328
Variable_name: identity
Value: 0
Variable_name: ignore_builtin_innodb
Value: OFF
Variable_name: ignore_db_dirs
Value:
Variable_name: init_connect
Value:
Variable_name: init_file
Value:
Variable_name: init_slave
Value:
Variable_name: innodb_adaptive_flushing
Value: ON
Variable_name: innodb_adaptive_flushing_lwm
Value: 10
Variable_name: innodb_adaptive_hash_index
Value: ON
Variable_name: innodb_adaptive_hash_index_parts
Value: 8
Variable_name: innodb_adaptive_max_sleep_delay
Value: 150000
Variable_name: innodb_api_bk_commit_interval
Value: 5
Variable_name: innodb_api_disable_rowlock
Value: OFF
Variable_name: innodb_api_enable_binlog
Value: OFF
Variable_name: innodb_api_enable_mdl
Value: OFF
Variable_name: innodb_api_trx_level
Value: 0
Variable_name: innodb_autoextend_increment
Value: 64
Variable_name: innodb_autoinc_lock_mode
Value: 1
Variable_name: innodb_buffer_pool_chunk_size
Value: 134217728
Variable_name: innodb_buffer_pool_dump_at_shutdown
Value: ON
Variable_name: innodb_buffer_pool_dump_now
Value: OFF
Variable_name: innodb_buffer_pool_dump_pct
Value: 25
Variable_name: innodb_buffer_pool_filename
Value: ib_buffer_pool
Variable_name: innodb_buffer_pool_instances
Value: 2
Variable_name: innodb_buffer_pool_load_abort
Value: OFF
Variable_name: innodb_buffer_pool_load_at_startup
Value: ON
Variable_name: innodb_buffer_pool_load_now
Value: OFF
Variable_name: innodb_buffer_pool_size
Value: 6442450944
Variable_name: innodb_change_buffer_max_size
Value: 25
Variable_name: innodb_change_buffering
Value: all
Variable_name: innodb_checksum_algorithm
Value: crc32
Variable_name: innodb_checksums
Value: ON
Variable_name: innodb_cmp_per_index_enabled
Value: OFF
Variable_name: innodb_commit_concurrency
Value: 0
Variable_name: innodb_compression_failure_threshold_pct
Value: 5
Variable_name: innodb_compression_level
Value: 6
Variable_name: innodb_compression_pad_pct_max
Value: 50
Variable_name: innodb_concurrency_tickets
Value: 5000
Variable_name: innodb_data_file_path
Value: ibdata1:12M:autoextend
Variable_name: innodb_data_home_dir
Value:
Variable_name: innodb_deadlock_detect
Value: ON
Variable_name: innodb_default_row_format
Value: dynamic
Variable_name: innodb_disable_sort_file_cache
Value: OFF
Variable_name: innodb_doublewrite
Value: ON
Variable_name: innodb_fast_shutdown
Value: 1
Variable_name: innodb_file_format
Value: Barracuda
Variable_name: innodb_file_format_check
Value: ON
Variable_name: innodb_file_format_max
Value: Barracuda
Variable_name: innodb_file_per_table
Value: ON
Variable_name: innodb_fill_factor
Value: 100
Variable_name: innodb_flush_log_at_timeout
Value: 1
Variable_name: innodb_flush_log_at_trx_commit
Value: 1
Variable_name: innodb_flush_method
Value:
Variable_name: innodb_flush_neighbors
Value: 1
Variable_name: innodb_flush_sync
Value: ON
Variable_name: innodb_flushing_avg_loops
Value: 30
Variable_name: innodb_force_load_corrupted
Value: OFF
Variable_name: innodb_force_recovery
Value: 0
Variable_name: innodb_ft_aux_table
Value:
Variable_name: innodb_ft_cache_size
Value: 8000000
Variable_name: innodb_ft_enable_diag_print
Value: OFF
Variable_name: innodb_ft_enable_stopword
Value: ON
Variable_name: innodb_ft_max_token_size
Value: 84
Variable_name: innodb_ft_min_token_size
Value: 3
Variable_name: innodb_ft_num_word_optimize
Value: 2000
Variable_name: innodb_ft_result_cache_limit
Value: 2000000000
Variable_name: innodb_ft_server_stopword_table
Value:
Variable_name: innodb_ft_sort_pll_degree
Value: 2
Variable_name: innodb_ft_total_cache_size
Value: 640000000
Variable_name: innodb_ft_user_stopword_table
Value:
Variable_name: innodb_io_capacity
Value: 200
Variable_name: innodb_io_capacity_max
Value: 2000
Variable_name: innodb_large_prefix
Value: ON
Variable_name: innodb_lock_wait_timeout
Value: 600
Variable_name: innodb_locks_unsafe_for_binlog
Value: OFF
Variable_name: innodb_log_buffer_size
Value: 16777216
Variable_name: innodb_log_checksums
Value: ON
Variable_name: innodb_log_compressed_pages
Value: ON
Variable_name: innodb_log_file_size
Value: 681574400
Variable_name: innodb_log_files_in_group
Value: 2
Variable_name: innodb_log_group_home_dir
Value: ./
Variable_name: innodb_log_write_ahead_size
Value: 8192
Variable_name: innodb_lru_scan_depth
Value: 1024
Variable_name: innodb_max_dirty_pages_pct
Value: 75.000000
Variable_name: innodb_max_dirty_pages_pct_lwm
Value: 0.000000
Variable_name: innodb_max_purge_lag
Value: 0
Variable_name: innodb_max_purge_lag_delay
Value: 0
Variable_name: innodb_max_undo_log_size
Value: 1073741824
Variable_name: innodb_monitor_disable
Value:
Variable_name: innodb_monitor_enable
Value:
Variable_name: innodb_monitor_reset
Value:
Variable_name: innodb_monitor_reset_all
Value:
Variable_name: innodb_numa_interleave
Value: OFF
Variable_name: innodb_old_blocks_pct
Value: 37
Variable_name: innodb_old_blocks_time
Value: 1000
Variable_name: innodb_online_alter_log_max_size
Value: 134217728
Variable_name: innodb_open_files
Value: 2048
Variable_name: innodb_optimize_fulltext_only
Value: OFF
Variable_name: innodb_page_cleaners
Value: 2
Variable_name: innodb_page_size
Value: 16384
Variable_name: innodb_print_all_deadlocks
Value: OFF
Variable_name: innodb_purge_batch_size
Value: 300
Variable_name: innodb_purge_rseg_truncate_frequency
Value: 128
Variable_name: innodb_purge_threads
Value: 4
Variable_name: innodb_random_read_ahead
Value: OFF
Variable_name: innodb_read_ahead_threshold
Value: 56
Variable_name: innodb_read_io_threads
Value: 4
Variable_name: innodb_read_only
Value: OFF
Variable_name: innodb_replication_delay
Value: 0
Variable_name: innodb_rollback_on_timeout
Value: OFF
Variable_name: innodb_rollback_segments
Value: 128
Variable_name: innodb_sort_buffer_size
Value: 1048576
Variable_name: innodb_spin_wait_delay
Value: 6
Variable_name: innodb_stats_auto_recalc
Value: ON
Variable_name: innodb_stats_include_delete_marked
Value: OFF
Variable_name: innodb_stats_method
Value: nulls_equal
Variable_name: innodb_stats_on_metadata
Value: OFF
Variable_name: innodb_stats_persistent
Value: ON
Variable_name: innodb_stats_persistent_sample_pages
Value: 20
Variable_name: innodb_stats_sample_pages
Value: 8
Variable_name: innodb_stats_transient_sample_pages
Value: 8
Variable_name: innodb_status_output
Value: OFF
Variable_name: innodb_status_output_locks
Value: OFF
Variable_name: innodb_strict_mode
Value: ON
Variable_name: innodb_support_xa
Value: ON
Variable_name: innodb_sync_array_size
Value: 1
Variable_name: innodb_sync_spin_loops
Value: 30
Variable_name: innodb_table_locks
Value: ON
Variable_name: innodb_temp_data_file_path
Value: ibtmp1:12M:autoextend
Variable_name: innodb_thread_concurrency
Value: 0
Variable_name: innodb_thread_sleep_delay
Value: 10000
Variable_name: innodb_tmpdir
Value:
Variable_name: innodb_undo_directory
Value: ./
Variable_name: innodb_undo_log_truncate
Value: OFF
Variable_name: innodb_undo_logs
Value: 128
Variable_name: innodb_undo_tablespaces
Value: 0
Variable_name: innodb_use_native_aio
Value: ON
Variable_name: innodb_version
Value: 5.7.29
Variable_name: innodb_write_io_threads
Value: 4
Variable_name: insert_id
Value: 0
Variable_name: interactive_timeout
Value: 500
Variable_name: internal_tmp_disk_storage_engine
Value: InnoDB
Variable_name: join_buffer_size
Value: 524288
Variable_name: keep_files_on_create
Value: OFF
Variable_name: key_buffer_size
Value: 104857600
Variable_name: key_cache_age_threshold
Value: 300
Variable_name: key_cache_block_size
Value: 1024
Variable_name: key_cache_division_limit
Value: 100
Variable_name: keyring_operations
Value: ON
Variable_name: large_files_support
Value: ON
Variable_name: large_page_size
Value: 0
Variable_name: large_pages
Value: OFF
Variable_name: last_insert_id
Value: 0
Variable_name: lc_messages
Value: en_US
Variable_name: lc_messages_dir
Value: /usr/share/mysql/
Variable_name: lc_time_names
Value: en_US
Variable_name: license
Value: GPL
Variable_name: local_infile
Value: ON
Variable_name: lock_wait_timeout
Value: 31536000
Variable_name: locked_in_memory
Value: OFF
Variable_name: log_bin
Value: OFF
Variable_name: log_bin_basename
Value:
Variable_name: log_bin_index
Value:
Variable_name: log_bin_trust_function_creators
Value: OFF
Variable_name: log_bin_use_v1_row_events
Value: OFF
Variable_name: log_builtin_as_identified_by_password
Value: OFF
Variable_name: log_error
Value: /var/log/mysql/error.log
Variable_name: log_error_verbosity
Value: 3
Variable_name: log_output
Value: FILE
Variable_name: log_queries_not_using_indexes
Value: OFF
Variable_name: log_slave_updates
Value: OFF
Variable_name: log_slow_admin_statements
Value: OFF
Variable_name: log_slow_slave_statements
Value: OFF
Variable_name: log_statements_unsafe_for_binlog
Value: ON
Variable_name: log_syslog
Value: OFF
Variable_name: log_syslog_facility
Value: daemon
Variable_name: log_syslog_include_pid
Value: ON
Variable_name: log_syslog_tag
Value:
Variable_name: log_throttle_queries_not_using_indexes
Value: 0
Variable_name: log_timestamps
Value: UTC
Variable_name: log_warnings
Value: 2
Variable_name: long_query_time
Value: 5.000000
Variable_name: low_priority_updates
Value: OFF
Variable_name: lower_case_file_system
Value: OFF
Variable_name: lower_case_table_names
Value: 0
Variable_name: master_info_repository
Value: FILE
Variable_name: master_verify_checksum
Value: OFF
Variable_name: max_allowed_packet
Value: 104857600
Variable_name: max_binlog_cache_size
Value: 18446744073709547520
Variable_name: max_binlog_size
Value: 1073741824
Variable_name: max_binlog_stmt_cache_size
Value: 18446744073709547520
Variable_name: max_connect_errors
Value: 100
Variable_name: max_connections
Value: 200
Variable_name: max_delayed_threads
Value: 20
Variable_name: max_digest_length
Value: 1024
Variable_name: max_error_count
Value: 64
Variable_name: max_execution_time
Value: 0
Variable_name: max_heap_table_size
Value: 134217728
Variable_name: max_insert_delayed_threads
Value: 20
Variable_name: max_join_size
Value: 18446744073709551615
Variable_name: max_length_for_sort_data
Value: 1024
Variable_name: max_points_in_geometry
Value: 65536
Variable_name: max_prepared_stmt_count
Value: 16382
Variable_name: max_relay_log_size
Value: 0
Variable_name: max_seeks_for_key
Value: 18446744073709551615
Variable_name: max_sort_length
Value: 1024
Variable_name: max_sp_recursion_depth
Value: 0
Variable_name: max_tmp_tables
Value: 32
Variable_name: max_user_connections
Value: 200
Variable_name: max_write_lock_count
Value: 18446744073709551615
Variable_name: metadata_locks_cache_size
Value: 1024
Variable_name: metadata_locks_hash_instances
Value: 8
Variable_name: min_examined_row_limit
Value: 0
Variable_name: multi_range_count
Value: 256
Variable_name: myisam_data_pointer_size
Value: 6
Variable_name: myisam_max_sort_file_size
Value: 9223372036853727232
Variable_name: myisam_mmap_size
Value: 18446744073709551615
Variable_name: myisam_recover_options
Value: OFF
Variable_name: myisam_repair_threads
Value: 1
Variable_name: myisam_sort_buffer_size
Value: 67108864
Variable_name: myisam_stats_method
Value: nulls_unequal
Variable_name: myisam_use_mmap
Value: OFF
Variable_name: mysql_native_password_proxy_users
Value: OFF
Variable_name: net_buffer_length
Value: 16384
Variable_name: net_read_timeout
Value: 30
Variable_name: net_retry_count
Value: 10
Variable_name: net_write_timeout
Value: 60
Variable_name: new
Value: OFF
Variable_name: ngram_token_size
Value: 2
Variable_name: offline_mode
Value: OFF
Variable_name: old
Value: OFF
Variable_name: old_alter_table
Value: OFF
Variable_name: old_passwords
Value: 0
Variable_name: open_files_limit
Value: 5000
Variable_name: optimizer_prune_level
Value: 1
Variable_name: optimizer_search_depth
Value: 62
Variable_name: optimizer_switch
Value: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on,index_condition_pushdown=on,mrr=on,mrr_cost_based=on,block_nested_loop=on,batched_key_access=off,materialization=on,semijoin=on,loosescan=on,firstmatch=on,duplicateweedout=on,subquery_materialization_cost_based=on,use_index_extensions=on,condition_fanout_filter=on,derived_merge=on
Variable_name: optimizer_trace
Value: enabled=off,one_line=off
Variable_name: optimizer_trace_features
Value: greedy_search=on,range_optimizer=on,dynamic_range=on,repeated_subselect=on
Variable_name: optimizer_trace_limit
Value: 1
Variable_name: optimizer_trace_max_mem_size
Value: 16384
Variable_name: optimizer_trace_offset
Value: -1
Variable_name: parser_max_mem_size
Value: 18446744073709551615
Variable_name: performance_schema
Value: ON
Variable_name: performance_schema_accounts_size
Value: -1
Variable_name: performance_schema_digests_size
Value: 10000
Variable_name: performance_schema_events_stages_history_long_size
Value: 10000
Variable_name: performance_schema_events_stages_history_size
Value: 10
Variable_name: performance_schema_events_statements_history_long_size
Value: 10000
Variable_name: performance_schema_events_statements_history_size
Value: 10
Variable_name: performance_schema_events_transactions_history_long_size
Value: 10000
Variable_name: performance_schema_events_transactions_history_size
Value: 10
Variable_name: performance_schema_events_waits_history_long_size
Value: 10000
Variable_name: performance_schema_events_waits_history_size
Value: 10
Variable_name: performance_schema_hosts_size
Value: -1
Variable_name: performance_schema_max_cond_classes
Value: 80
Variable_name: performance_schema_max_cond_instances
Value: -1
Variable_name: performance_schema_max_digest_length
Value: 1024
Variable_name: performance_schema_max_file_classes
Value: 80
Variable_name: performance_schema_max_file_handles
Value: 32768
Variable_name: performance_schema_max_file_instances
Value: -1
Variable_name: performance_schema_max_index_stat
Value: -1
Variable_name: performance_schema_max_memory_classes
Value: 320
Variable_name: performance_schema_max_metadata_locks
Value: -1
Variable_name: performance_schema_max_mutex_classes
Value: 210
Variable_name: performance_schema_max_mutex_instances
Value: -1
Variable_name: performance_schema_max_prepared_statements_instances
Value: -1
Variable_name: performance_schema_max_program_instances
Value: -1
Variable_name: performance_schema_max_rwlock_classes
Value: 50
Variable_name: performance_schema_max_rwlock_instances
Value: -1
Variable_name: performance_schema_max_socket_classes
Value: 10
Variable_name: performance_schema_max_socket_instances
Value: -1
Variable_name: performance_schema_max_sql_text_length
Value: 1024
Variable_name: performance_schema_max_stage_classes
Value: 150
Variable_name: performance_schema_max_statement_classes
Value: 193
Variable_name: performance_schema_max_statement_stack
Value: 10
Variable_name: performance_schema_max_table_handles
Value: -1
Variable_name: performance_schema_max_table_instances
Value: -1
Variable_name: performance_schema_max_table_lock_stat
Value: -1
Variable_name: performance_schema_max_thread_classes
Value: 50
Variable_name: performance_schema_max_thread_instances
Value: -1
Variable_name: performance_schema_session_connect_attrs_size
Value: 512
Variable_name: performance_schema_setup_actors_size
Value: -1
Variable_name: performance_schema_setup_objects_size
Value: -1
Variable_name: performance_schema_users_size
Value: -1
Variable_name: pid_file
Value: /run/mysqld/mysqld.pid
Variable_name: plugin_dir
Value: /usr/lib/mysql/plugin/
Variable_name: port
Value: 3306
Variable_name: preload_buffer_size
Value: 32768
Variable_name: profiling
Value: OFF
Variable_name: profiling_history_size
Value: 15
Variable_name: protocol_version
Value: 10
Variable_name: proxy_user
Value:
Variable_name: pseudo_slave_mode
Value: OFF
Variable_name: pseudo_thread_id
Value: 274058
Variable_name: query_alloc_block_size
Value: 8192
Variable_name: query_cache_limit
Value: 1048576
Variable_name: query_cache_min_res_unit
Value: 4096
Variable_name: query_cache_size
Value: 0
Variable_name: query_cache_type
Value: OFF
Variable_name: query_cache_wlock_invalidate
Value: OFF
Variable_name: query_prealloc_size
Value: 8192
Variable_name: rand_seed1
Value: 0
Variable_name: rand_seed2
Value: 0
Variable_name: range_alloc_block_size
Value: 4096
Variable_name: range_optimizer_max_mem_size
Value: 8388608
Variable_name: rbr_exec_mode
Value: STRICT
Variable_name: read_buffer_size
Value: 524288
Variable_name: read_only
Value: OFF
Variable_name: read_rnd_buffer_size
Value: 4194304
Variable_name: relay_log
Value:
Variable_name: relay_log_info_file
Value: relay-log.info
Variable_name: relay_log_info_repository
Value: FILE
Variable_name: relay_log_purge
Value: ON
Variable_name: relay_log_recovery
Value: OFF
Variable_name: relay_log_space_limit
Value: 0
Variable_name: report_host
Value:
Variable_name: report_password
Value:
Variable_name: report_port
Value: 3306
Variable_name: report_user
Value:
Variable_name: require_secure_transport
Value: OFF
Variable_name: rpl_stop_slave_timeout
Value: 31536000
Variable_name: secure_auth
Value: ON
Variable_name: secure_file_priv
Value: /var/lib/mysql-files/
Variable_name: server_id
Value: 0
Variable_name: server_id_bits
Value: 32
Variable_name: server_uuid
Value: 7f8a0e28-5dec-11e9-a9a5-005056110343
Variable_name: session_track_gtids
Value: OFF
Variable_name: session_track_schema
Value: ON
Variable_name: session_track_state_change
Value: OFF
Variable_name: session_track_system_variables
Value: time_zone,autocommit,character_set_client,character_set_results,character_set_connection
Variable_name: session_track_transaction_info
Value: OFF
Variable_name: sha256_password_auto_generate_rsa_keys
Value: ON
Variable_name: sha256_password_private_key_path
Value: private_key.pem
Variable_name: sha256_password_proxy_users
Value: OFF
Variable_name: sha256_password_public_key_path
Value: public_key.pem
Variable_name: show_compatibility_56
Value: OFF
Variable_name: show_create_table_verbosity
Value: OFF
Variable_name: show_old_temporals
Value: OFF
Variable_name: skip_external_locking
Value: ON
Variable_name: skip_name_resolve
Value: OFF
Variable_name: skip_networking
Value: OFF
Variable_name: skip_show_database
Value: OFF
Variable_name: slave_allow_batching
Value: OFF
Variable_name: slave_checkpoint_group
Value: 512
Variable_name: slave_checkpoint_period
Value: 300
Variable_name: slave_compressed_protocol
Value: OFF
Variable_name: slave_exec_mode
Value: STRICT
Variable_name: slave_load_tmpdir
Value: /tmp
Variable_name: slave_max_allowed_packet
Value: 1073741824
Variable_name: slave_net_timeout
Value: 60
Variable_name: slave_parallel_type
Value: DATABASE
Variable_name: slave_parallel_workers
Value: 0
Variable_name: slave_pending_jobs_size_max
Value: 16777216
Variable_name: slave_preserve_commit_order
Value: OFF
Variable_name: slave_rows_search_algorithms
Value: TABLE_SCAN,INDEX_SCAN
Variable_name: slave_skip_errors
Value: OFF
Variable_name: slave_sql_verify_checksum
Value: ON
Variable_name: slave_transaction_retries
Value: 10
Variable_name: slave_type_conversions
Value:
Variable_name: slow_launch_time
Value: 2
Variable_name: slow_query_log
Value: OFF
Variable_name: socket
Value: /var/run/mysqld/mysqld.sock
Variable_name: sort_buffer_size
Value: 524288
Variable_name: sql_auto_is_null
Value: OFF
Variable_name: sql_big_selects
Value: ON
Variable_name: sql_buffer_result
Value: OFF
Variable_name: sql_log_bin
Value: ON
Variable_name: sql_log_off
Value: OFF
Variable_name: sql_mode
Value: STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
Variable_name: sql_notes
Value: ON
Variable_name: sql_quote_show_create
Value: ON
Variable_name: sql_safe_updates
Value: OFF
Variable_name: sql_select_limit
Value: 18446744073709551615
Variable_name: sql_slave_skip_counter
Value: 0
Variable_name: sql_warnings
Value: OFF
Variable_name: ssl_ca
Value: ca.pem
Variable_name: ssl_capath
Value:
Variable_name: ssl_cert
Value: server-cert.pem
Variable_name: ssl_cipher
Value:
Variable_name: ssl_crl
Value:
Variable_name: ssl_crlpath
Value:
Variable_name: ssl_key
Value: server-key.pem
Variable_name: stored_program_cache
Value: 256
Variable_name: super_read_only
Value: OFF
Variable_name: sync_binlog
Value: 1
Variable_name: sync_frm
Value: ON
Variable_name: sync_master_info
Value: 10000
Variable_name: sync_relay_log
Value: 10000
Variable_name: sync_relay_log_info
Value: 10000
Variable_name: system_time_zone
Value: UTC
Variable_name: table_definition_cache
Value: 2048
Variable_name: table_open_cache
Value: 2048
Variable_name: table_open_cache_instances
Value: 16
Variable_name: thread_cache_size
Value: 50
Variable_name: thread_handling
Value: one-thread-per-connection
Variable_name: thread_stack
Value: 262144
Variable_name: time_format
Value: %H:%i:%s
Variable_name: time_zone
Value: SYSTEM
Variable_name: timestamp
Value: 1581496656.165970
Variable_name: tls_version
Value: TLSv1,TLSv1.1,TLSv1.2
Variable_name: tmp_table_size
Value: 134217728
Variable_name: tmpdir
Value: /tmp
Variable_name: transaction_alloc_block_size
Value: 8192
Variable_name: transaction_allow_batching
Value: OFF
Variable_name: transaction_isolation
Value: REPEATABLE-READ
Variable_name: transaction_prealloc_size
Value: 4096
Variable_name: transaction_read_only
Value: OFF
Variable_name: transaction_write_set_extraction
Value: OFF
Variable_name: tx_isolation
Value: REPEATABLE-READ
Variable_name: tx_read_only
Value: OFF
Variable_name: unique_checks
Value: ON
Variable_name: updatable_views_with_limit
Value: YES
Variable_name: version
Value: 5.7.29-0ubuntu0.18.04.1
Variable_name: version_comment
Value: (Ubuntu)
Variable_name: version_compile_machine
Value: x86_64
Variable_name: version_compile_os
Value: Linux
Variable_name: wait_timeout
Value: 500
Variable_name: w

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