本文主要提供基于DBFS之上构建MySQL 5.7数据库的配置文件my.cnf参考。

MySQL 5.7配置文件说明：

目录说明，“/mnt/dbfs/v-bp196g0zi82d0pqte8r9/”为用户DBFS服务挂载目录。可根据用户具体挂载目录进行更改。

此配置文件中，已经关闭MySQL Double Write Buffer。

此配置文件中，与内存、连接数等相关的配置项，用户可根据具体情况做更改。

此配置文件仅做参考，不做强制要求。

MySQL 5.7配置文件如下： [mysqld_safe]

pid-file=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/run/mysqld.pid

malloc-lib=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/mysql-5.7.26/lib/libjemalloc.so

[mysql]

port=3307

prompt=\\u@\\d \\r:\\m:\\s>

default-character-set=utf8mb4

no-auto-rehash

[client]

port=3307

socket=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/run/mysql.sock

[mysqld]

#dir

core-file

basedir=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/mysql-5.7.26

datadir=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/data

tmpdir=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/tmp

lc_messages_dir=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/mysql-5.7.26/share

log-error=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/log/alert.log

slow_query_log_file=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/log/slow.log

general_log_file=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/log/general.log

socket=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/run/mysql.sock

# close 5.6 variables for 5.5

binlog_checksum=none

log_bin_use_v1_row_events=on

explicit_defaults_for_timestamp=OFF

binlog_row_image=FULL

binlog_rows_query_log_events=OFF

binlog_stmt_cache_size=32768

#innodb

innodb_data_home_dir=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/data

innodb_log_group_home_dir=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/data

innodb_data_file_path=ibdata1:1G;ibdata2:1G:autoextend

innodb_buffer_pool_instances=4

innodb_log_files_in_group=4

innodb_log_file_size=1G

innodb_log_buffer_size=200M

innodb_flush_log_at_trx_commit=1

innodb_max_dirty_pages_pct=60

innodb_io_capacity_max=10000

innodb_io_capacity=6000

innodb_thread_concurrency=32

innodb_read_io_threads=8

innodb_write_io_threads=8

innodb_open_files=615350

innodb_file_format=Barracuda

innodb_file_per_table=1

innodb_flush_method=O_DIRECT

innodb_change_buffering=none

innodb_adaptive_flushing=1

innodb_old_blocks_time=1000

innodb_stats_on_metadata=0

innodb_use_native_aio=1

innodb_lock_wait_timeout=5

innodb_rollback_on_timeout=0

innodb_purge_threads=4

innodb_strict_mode=1

transaction-isolation=READ-COMMITTED

innodb_disable_sort_file_cache=ON

innodb_lru_scan_depth=2048

innodb_flush_neighbors=0

innodb_sync_array_size=16

innodb_print_all_deadlocks

innodb_checksum_algorithm=CRC32

innodb_max_dirty_pages_pct_lwm=10

innodb_buffer_pool_size=8G

innodb_read_ahead_threshold=0

innodb_doublewrite=off

#myisam

concurrent_insert=2

delayed_insert_timeout=300

#replication

master-info-file=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/log/master.info

relay-log=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/log/relaylog

relay_log_info_file=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/log/relay-log.info

relay-log-index=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/log/mysqld-relay-bin.index

slave_load_tmpdir=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/tmp

slave_type_conversions="ALL_NON_LOSSY"

slave_net_timeout=4

skip-slave-start=OFF

sync_master_info=10000

sync_relay_log_info=10000

master_info_repository=TABLE

relay_log_info_repository=TABLE

relay_log_recovery=0

slave_exec_mode=STRICT

slave_parallel_type=DATABASE

slave-parallel-workers=32

#binlog

log-bin=/mnt/dbfs/v-bp196g0zi82d0pqte8r9/my3307/log/mysql-bin

server_id=195697006

binlog_cache_size=32K

max_binlog_cache_size=2G

max_binlog_size=500M

max_relay_log_size=500M

relay_log_purge=OFF

binlog-format=ROW

sync_binlog=1

sync_relay_log=10000

log-slave-updates=0

expire_logs_days=0

rpl_stop_slave_timeout=300

slave_checkpoint_group=1024

slave_checkpoint_period=300

slave_pending_jobs_size_max=1073741824

slave_rows_search_algorithms='TABLE_SCAN,INDEX_SCAN'

slave_sql_verify_checksum=OFF

master_verify_checksum=OFF

#gtid

gtid_mode=OFF

enforce_gtid_consistency=OFF

#server

default-storage-engine=INNODB

character-set-server=utf8mb4

lower_case_table_names=1

skip-external-locking

open_files_limit=615350

safe-user-create

local-infile=1

sql_mode='NO_ENGINE_SUBSTITUTION'

performance_schema=0

log_slow_admin_statements=1

log_warnings=3

long_query_time=1

slow_query_log=1

general_log=0

query_cache_type=0

query_cache_limit=1M

query_cache_min_res_unit=1K

table_definition_cache=32768

metadata_locks_hash_instances=256

metadata_locks_cache_size=32768

eq_range_index_dive_limit=200

table_open_cache_instances=16

table_open_cache=32768

thread_stack=512K

binlog_cache_size=32K

net_buffer_length=16384

thread_cache_size=256

read_rnd_buffer_size=128K

sort_buffer_size=256K

join_buffer_size=128K

read_buffer_size=128K

port=3307

skip-name-resolve

skip-ssl

max_connections=10000

max_user_connections=8000

max_connect_errors=65536

max_allowed_packet=1G

connect_timeout=8

net_read_timeout=30

net_write_timeout=60

back_log=1024

log_queries_not_using_indexes=0

log_timestamps=SYSTEM