mysql 主要性能指标

Posted 2020-09-16

1.mysql connections->threads cached->threads cached
mysql connections->threads cached->threads connected(已用连接数,连接池)
mysql connections->threads cached->connections per second
2.表缓存，已经打开的表数
3.已经打开的文件数
4.QPS/TPS
show status like ‘queries‘
QPS：Query per second，每秒查询量
show status like ‘com_commit‘
TPS：Transaction per second，每秒事物量
TPS = (Com_commit + Com_rollback) / Seconds
5.DML persecond图标
对应mysql innodb rows 
6.Transaction Persecond(mysql innodb transactions)
commit/rollback
7.innodb (mysql innodb buffer pool)
innodb buffer pool reads
innodb buffer pool pages flushed
8.key buffer
key buffer read rate
key buffer write rate
key blocks used rate
9.network
bytes_received,bytes_sent
10.aborted
aborted_clients,aborted_connects
11.MySQL InnoDB, MySQL InnoDB Buffer Pool
database pages    InnoDB Buffer Pool Pages Data
free pages    InnoDB Buffer Pool Pages Free
modified pages   InnoDB Rows Modified per second
12.MySQL Performance
MySQLTransactions Handler
handler commit  InnoDB Transaction Committing
handler rollback  InnoDB Transaction Rolling Back
handler savepoint 
handler savepoint rollback
InnoDB Last Checkpoint at per second (MySQL InnoDB, MySQL InnoDB Log File)
13.MySQLProcesslist


具体如下

show processlist;
show full processlist;
show open tables;
show status like ‘%lock%’
show engine innodb status\G;
show variables like ‘%timeout%’;
1.线程池
thread_cache_size = 32
thread_stack = 512K
#innodb_file_io_threads = 8
innodb_thread_concurrency = 16
#thread_stack = 192K
#thread_concurrency = 128

尤其注意以下监控项
MySQL InnoDB Buffer Pool
pool size 
database pages    InnoDB Buffer Pool Pages Data
free pages     InnoDB Buffer Pool Pages Free
modified pages
UserParameter=MySQL.pool-size,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh gq
UserParameter=MySQL.modified-pages,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh gt
UserParameter=MySQL.free-pages,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh gr
UserParameter=MySQL.database-pages,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh gs
 
MySQLTransactions Handler
handler commit  InnoDB Transaction Committing
handler rollback  InnoDB Transaction Rolling Back
handler savepoint 
handler savepoint rollback
 
 
UserParameter=MySQL.Handler-rollback,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh mw
UserParameter=MySQL.modified-pages,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh gt
UserParameter=MySQL.Handler-savepoint-rollback,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh my
UserParameter=MySQL.Handler-savepoint,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh mx
UserParameter=MySQL.Handler-commit,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh mm
 
MySQLProcesslist
UserParameter=MySQL.State-updating,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh mi
UserParameter=MySQL.State-freeing-items,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh lt
UserParameter=MySQL.State-other,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh ml
UserParameter=MySQL.State-none,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh mk
UserParameter=MySQL.State-init,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh lu
UserParameter=MySQL.State-sorting-result,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh mg
UserParameter=MySQL.State-statistics,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh mh
UserParameter=MySQL.State-copying-to-tmp-table,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh lr
UserParameter=MySQL.State-end,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh ls
UserParameter=MySQL.State-login,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh lw
UserParameter=MySQL.State-reading-from-net,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh ly
UserParameter=MySQL.State-locked,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh lv
UserParameter=MySQL.State-sending-data,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh lz
UserParameter=MySQL.State-preparing,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh lx
UserParameter=MySQL.State-writing-to-net,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh mj
UserParameter=MySQL.State-closing-tables,/var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh lq
 
 
5.6
last("mysql.innodb[Innodb_node_heap_buffers]",0)*last("mysql.status[innodb_page_size]",0)  (MySQL InnoDB)
last("Qcache_used_blocks",0)/last("mysql.status[Qcache_queries_in_cache]",0)  (MySQL Query Cache)
last("Qcache_used_memory",0)/last("Qcache_used_blocks",0)
(MySQL Query Cache)
last("mysql.status[Qcache_total_blocks]",0)-last("mysql.status[Qcache_used_blocks]",0) (MySQL Query Cache)

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