本工具在5.5 5.6 5.7中测试通过
源码我放在百度云盘了
http://pan.baidu.com/s/1mhIeKp6
源码一共5个文件
conmysql.c main.c findv.c other.c type.h
如果源码编译使用如下方法
1、建立一个MYSQL用户用于监控，不需要什么权限只要能够show global status 即可
mysql> create user mmon@'localhost' identified by 'test123';
Query OK, 0 rows affected (0.30 sec)
这样就可以了
2、找到你的MYSQL库文件
一般在你的安装目录lib 目录下
如/mysqldata/mysql5.7/lib
export LD_LIBRARY_PATH=/mysqldata/mysql5.7/lib
3、编译源文件
原版
gcc conmysql.c main.c findv.c other.c -L/mysqldata/mysql5.7/lib -L/mysqldata/mysql5.7/lib -lmysqlclient -I/mysqldata/mysql5.7/include -o mmon -W -fPIC
percona
gcc conmysql.c main.c findv.c other.c -L/dbdata/mysql3307/lib -lperconaserverclient -I/dbdata/mysql3307/include -o mmon -W -fPIC
4、帮助
[root@testmy mysqlmon]# ./mmon -help
Welcome use this mon tool!
This mon tool is calc status delta!
Author:gaopeng QQ:22389860
This mon tool is calc status delta, interval time is paramter -l define default is 10 seconds
but cant's less than 3 seconds
-t define how many times defualt is 1440 times
If -10 appear means is that no values find!
Usage::./mmon -h -u -p -P/-s [-l] [-t]
-h:host
-u:username
-p:password
-P:port
-s:socket
-l:interval time of seconds
-t:how many times
-l 是时间间隔默认是10秒，指定时间最小为3秒，小于3秒会报错。
-t 是你想采样的此时默认是1440次，不能小于1.
5、使用
./mmon -h=localhost -u=test11 -p=gelc123 -s=/mysqldata/mysql5.7/mysqld3307.sock -l=5 -t=3
按ctrl+c 即可以退出
注意-p=lc1\$23 这里的特殊字符用一下转义\
输出为：
Welcome use this mon tool!
This mon tool is calc status delta!
Author:gaopeng QQ:22389860
Your input paramter is: -h,localhost
Your input paramter is: -u,mmontest
Your input paramter is: -p,Lc123
Your input paramter is: -s,/dbdata/mysql5800/mysql.sock
Your input paramter is: -l,5
Your input paramter is: -t,3
Parameter counter is: 5
Mmonitor:host is:localhost,user is:mmontest,passwd is:gelc123,socket is:/dbdata/mysql5800/mysql.sock,port is 0
Mmonitor:Connect mysql server success
Mmonitor:status rows : 402,field : 2
------------------------------------------MMON--------------------------------------------
SysTime: Mon Sep 12 12:25:28 2016
Uptime:2312561 Connections:1 Aborted_clients:0 Max_used_connections:44
--------------------------------------MYSQLINFO-------------------------------------------
Threads_connected:12 Threads_running:1 Qcache_free_memory:1031328
Qcache_hits:0 Qcache_not_cached:0 Qcache_inserts:0
Handler_read_first:0 Handler_read_key71 Handler_read_next0
Handler_read_last:0 Handler_read_prev:0 Handler_read_rnd:71
Handler_read_rnd_next:403
Sort_rows:0 Select_full_join:0 Select_scan:1
Com_commit:177 Com_rollback:0
Handler_commit:455 Handler_rollback:0
U:70 D:1 I:207 S:0 S/(U+D+I+S)(%):0.00
TIM(temp table in mem lager)(%):100.00 SOD(sort on disk small)(%):0.00
TOH(table open hint lager)(%):100.00 BOD(binglog on disk samll)(%):0.00
--------------------------------------INNODBINFO------------------------------------------
Innodb_row_lock_time:0 Innodb_row_lock_waits:0
Innodb_log_writes:181 Innodb_log_waits:0
Innodb_buffer_pool_wait_free:0 Innodb_buffer_pool_pages_misc:380
Innodb_buffer_pool_pages_flushed:84
Innodb_dblwr_pages_written:84 Innodb_dblwr_writes:8
Innodb_os_log_pending_fsyncs:0 Innodb_os_log_pending_writes:0
Innodb_os_log_written:384512
Innodb_data_reads:21 Innodb_data_read:344064
Innodb_data_writes:273 Innodb_data_written:3137024
Innodb_buffer_pool_bytes_data:32071745536
U(rows):70 D(rows):1 I(rows):273 S(rows):71
BPH(buffer cache hint)(%):100.00 BFP(free buffer pct)(%):0.42
BDP(dirty buffer pct)(%):0.68
---------------------------------------TOTALINFO------------------------------------------
Bytes_received:283146 Bytes_sent:11968
QPS:55 TPS:55 IOPS:96
---------------------------------------ENDL-----------------------------------------------
大部分保留了原有的status名字而没有使用简写，目的在于大家能够更快在文档中找到相应的解释
明白其中的含义。
关于指标问题，任何show global status中的都可以非常简单加入到工具中，可以联系我加入。
部分错误码
Mmonitor(16):connect mysql server error
Mmonitor(15):mysql port is number type!" ??
Mmonitor:(14)parameters must -h -u -p -P -s [-l] "
Mmonitor:(13)parameter len must>=4"
Mmonitor(12):miss -parameter= ="
Mmonitor(11):use only -u -h -p -P -s [-l]"
Mmonitor(10):miss -parameter= -"
Mmonitor(17):data global status failed no pri?
Mmonitor(18):fetch data failed!"
Mmonitor(21): cycle is number type!"
Mmonitor(22): Mmonitor cycle must lager than 3 sec!
关于内存泄露：
通过工具 valgrind 检测
==5999== HEAP SUMMARY:
==5999== in use at exit: 51,863 bytes in 718 blocks
==5999== total heap usage: 18,489 allocs, 17,771 frees, 2,250,709 bytes allocated
==5999==
==5999== LEAK SUMMARY:
==5999== definitely lost: 0 bytes in 0 blocks
==5999== indirectly lost: 0 bytes in 0 blocks
==5999== possibly lost: 34,651 bytes in 17 blocks
==5999== still reachable: 17,212 bytes in 701 blocks
==5999== suppressed: 0 bytes in 0 blocks
==5999== Rerun with --leak-check=full to see details of leaked memory
==5999==
==5999== For counts of detected and suppressed errors, rerun with: -v
可以看到没有内存泄露
==5999== possibly lost: 34,651 bytes in 17 blocks
==5999== still reachable: 17,212 bytes in 701 blocks
可以写shell脚本
是我固定非配的一点内存CTRL+C后释放
如果写脚本可以如下：
export LD_LIBRARY_PATH=/dbdata/mysql3307/lib
DATE_TAG=`date +%Y%m%d`
int=1
while(( $int<=288 ))
do
/root/mmon/mmon -h=localhost -u=mmontest -p=gelc123 -s=/dbdata/mysql5800/mysql.sock -l=60 -t=5 >>/root/mmon/mmon_${DATE_TAG}.log
let "int++"
done
代表每次抽取为1分钟 会采样288*5=1440 次就是 刚好一天的。
1 00 * * * /root/mmon.sh
然后这样挂载脚本，就可以每天1分钟采样一次记录下所有的信息变化。