innodb_flush_log_at_trx_commit参数用来控制缓冲区中的数据写入到日志文件以级日志文件数据刷新到磁盘的操作机制.0表示每秒写日志文件,并刷硬盘;1表示每事务写日志文件,并刷硬盘;2表示每事务写日志,但不刷硬盘. sync_binlog=1是最安全但是性能损耗最大的设置,是差不多比sync_binlog=0时的写入性能差5倍左右. ...
In the mysql config file, innodb_flush_log_at_trx_commit is set to 2. However, the MySQL official document recommends to set it to 1, which helps keep InnoDB ACID Compliant. "For durability and consistency in a replication setup that uses InnoDB with transactions: Always set innodb_flush_...
Innodb_buffer_pool_size 总内存-(每个线程锁需要的内存*连接数)- 系统的保留内存 key_buffer_size (3).I/O相关配置参数 InnoDb存储引擎的I/O参数设置: Innodb_log_file_size Innodb_log_file_in_group Innodb_log_buffer_size Innodb_flush_log_at_trx_commit Innodb_flush_method = O_DIRECT Innodb_file_...
default_storage_engine = InnoDB innodb_autoinc_lock_mode = 2 innodb_force_primary_key = 1 innodb_doublewrite = 1 # Allow server to accept connections on all interfaces. bind-address = 0.0.0.0 # Optional settings wsrep_slave_threads = 4 innodb_flush_log_at_trx_commit = 0 wsrep_node_name...
--ignore-db-dirs=.rocksdb --plugin-load=$HA_ROCKSDB_SO --binlog_format=ROW --collation-server=latin1_bin --loose-rocksdb_flush_log_at_trx_commit=0 --plugin-maturity=unknown 0 comments on commit 99bcec2 Please sign in to comment. Footer...
►commit_node_t ►Commit_order_lock_graph ►Commit_order_manager ►Commit_order_trx_dependency_tracker ►Commit_stage_manager ►Common_interface ►Common_table_expr ►Common_table_expr_parser_state ►Communication_protocol_action ►Communication_stack_to_string ►Comp_creator ►Comp...
我一般用64M-512M,具体取决于服务器的空间。...设成0会更快一点,但安全方面比较差,即使MySQL挂了也可能会丢失事务的数据。而值2只会在整个操作系统挂了时才可能丢数据。...关于这个参数的解释: If the value of innodb_flush_log_at_trx_commit is 0, the log buffer is written out to the...
innodb_buffer_pool_size=2G;innodb_log_file_size=512M;innodb_thread_concurrency=8;innodb_flush_log_at_trx_commit=2;innodb_log_buffer_size=64M;innodb_file_per_table=1;innodb_data_file_path=ibdata1:12M:autoextend;innodb_write_io_threads=4;innodb_read_io_threads=4;innodb_io_capacity=200;...
log_direct_non_transactional_updates | OFF | | binlog_format | STATEMENT | | expire_logs_days | 10 | | general_log | OFF | | general_log_file | /var/run/mysqld/mysqld.log | | innodb_flush_log_at_trx_commit | 1 | | innodb_locks_unsafe_for_binlog | OFF | | innodb_log_...
innodb_flush_log_at_trx_commit...配置设定为0 (插入速度会有很大提高,但Sever断电时有丢失数据风险) 2. innodb_autoextend_increment 从8M修改为256M (减少tablespace自动扩展次数,...innodb_file_per_table=on & alter table table_name engine=innodb 将大表转变为独立表空并且进行分区,然后将不同分区下挂...