Mysql 8.0 OCP认证考试原题题库整理(CUUG内部资料)-第5题
Choose four.
A newly deployed replication master database has a 10/90 read to write ratio.
The complete dataset is currently 28G but will never fluctuate beyond +-10%.
The database storage system consists of two locally attached PCI- E Enterprise grade disks (mounted as /data1 and /data2)
The server is dedicated to this MySQL Instance.
System memory capacity is 64G.
The my.cnf file contents are displayed here:
[mysqld]
datadir=/data1/
innodb_buffer_pool_size=28G
innodb_log_file_size=150M
Which four changes provide the most performance improvement, without sacrificing data integrity?
A) innodb-doublewrite=off
B) innodb_log_group_home_dir=/data2/
C) innodb_log_file_size=1G
D) innodb_undo_directory=/dev/shm
E) log-bin=/data2/
F) innodb_flush_log_at_trx_commit=0
G) sync_binlog=0
H) innodb_buffer_pool_size=32G
I) disable-log-bin
