reset master;
reset slave all;
半同步复制
主主复制
GTID
[mysqld]
read_only
super_read_only
select @@server_id;
set global general_log=ON;
MHA+Mycat
PXC
MGR
TiDB
mysqlslap -a -uroot -p123456
mysqlslap -a -c 100 -uroot -p123456
mysqlslap -a --concurrency=50,100 --number-of-queries 1000 --iterations=5 --engine=myisam,innodb --debug-info -uroot -p123456
mysqlslap -a --concurrency=50,100 --number-of-queries 1000 --iterations=5 --engine=myisam,innodb -uroot -p123456
last
lastb
last -x
dmesg
cat /var/lib/dmesg
journatctl
