mysqlsla的安装与使用

爱被打了一巴掌 2022-06-15 05:14 66阅读 0赞

author：skate  
time：2012/02/17  
  
**mysqlsla的安装与使用**  
  
1.下载 mysqlsla  
\[root@localhost tmp\]\# wget http://hackmysql.com/scripts/mysqlsla-2.03.tar.gz  
\--19:45:45--  http://hackmysql.com/scripts/mysqlsla-2.03.tar.gz  
Resolving hackmysql.com... 64.13.232.157  
Connecting to hackmysql.com|64.13.232.157|:80... connected.  
HTTP request sent, awaiting response... 200 OK  
Length: 33674 (33K) \[application/x-tar\]  
Saving to: \`mysqlsla-2.03.tar.gz.2'  
  
100%\[===========================================================================================>\] 33,674      50.2K/s   in 0.7s     
  
19:45:47 (50.2 KB/s) - \`mysqlsla-2.03.tar.gz.2' saved \[33674/33674\]  
  
2.解压  
\[root@localhost tmp\]\# tar -zxvf mysqlsla-2.03.tar.gz  
mysqlsla-2.03/  
mysqlsla-2.03/Changes  
mysqlsla-2.03/INSTALL  
mysqlsla-2.03/README  
mysqlsla-2.03/Makefile.PL  
mysqlsla-2.03/bin/  
mysqlsla-2.03/bin/mysqlsla  
mysqlsla-2.03/META.yml  
mysqlsla-2.03/lib/  
mysqlsla-2.03/lib/mysqlsla.pm  
mysqlsla-2.03/MANIFEST  
\[root@localhost tmp\]\# cd mysqlsla-2.03  
\[root@localhost mysqlsla-2.03\]\# ls  
bin  Changes  INSTALL  lib  Makefile.PL  MANIFEST  META.yml  README  
  
3.执行perl脚本检查包依赖关系  
\[root@localhost mysqlsla-2.03\]\# perl Makefile.PL  
Checking if your kit is complete...  
Looks good  
Writing Makefile for mysqlsla  
  
4.安装  
\[root@localhost mysqlsla-2.03\]\# make && make install;  
cp lib/mysqlsla.pm blib/lib/mysqlsla.pm  
cp bin/mysqlsla blib/script/mysqlsla  
/usr/bin/perl "-MExtUtils::MY" -e "MY->fixin(shift)" blib/script/mysqlsla  
Manifying blib/man3/mysqlsla.3pm  
Installing /usr/lib/perl5/site\_perl/5.8.8/mysqlsla.pm  
Installing /usr/share/man/man3/mysqlsla.3pm  
Installing /usr/bin/mysqlsla  
Writing /usr/lib/perl5/site\_perl/5.8.8/i386-linux-thread-multi/auto/mysqlsla/.packlist  
Appending installation info to /usr/lib/perl5/5.8.8/i386-linux-thread-multi/perllocal.pod  
\[root@localhost mysqlsla-2.03\]\#  
  
5.简单使用  
  
语法：  
 Slow log: mysqlsla -lt slow slow.log  
 General log: mysqlsla -lt general general.log  
 Binary log: mysqlbinlog bin.log | mysqlsla -lt binary -  
  
这里以slow log为例：  
  
\[root@localhost mysqlsla-2.03\]\# mysqlsla -lt slow /tmp/127\_slow.log | more  
Report for slow logs: /tmp/127\_slow.log  
24 queries total, 6 unique  
Sorted by 't\_sum'  
Grand Totals: Time 16 s, Lock 1 s, Rows sent 18, Rows Examined 2.10M  
  
  
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ 001 \_\_\_  
Count         : 18  (75.00%)  
Time          : 15 s total, 833.333 ms avg, 0 to 8 s max  (93.75%)  
  95% of Time : 7 s total, 411.765 ms avg, 0 to 4 s max  
Lock Time (s) : 0 total, 0 avg, 0 to 0 max  (0.00%)  
  95% of Lock : 0 total, 0 avg, 0 to 0 max  
Rows sent     : 0 avg, 0 to 0 max  (0.00%)  
Rows examined : 116.51k avg, 8 to 1.05M max  (99.99%)  
Database      :  
Users         :  
        root@localhost  : 100.00% (18) of query, 100.00% (24) of all users  
  
Query abstract:  
INSERT INTO t2 SELECT \* FROM t2;  
  
Query sample:  
insert into t2 select \* from t2;  
........  
  
选项说明：  
总查询次数 (queries total)， 去重后的sql数量 (unique)  
输出报表的内容排序(sorted by)  
最重大的慢sql统计信息, 包括 平均执行时间, 等待锁时间, 结果行的总数, 扫描的行总数.  
Count, sql的执行次数及占总的slow log数量的百分比.  
Time, 执行时间, 包括总时间, 平均时间, 最小, 最大时间, 时间占到总慢sql时间的百分比.  
95% of Time, 去除最快和最慢的sql, 覆盖率占95%的sql的执行时间.  
Lock Time, 等待锁的时间.  
95% of Lock , 95%的慢sql等待锁时间.  
Rows sent, 结果行统计数量, 包括平均, 最小, 最大数量.  
Rows examined, 扫描的行数量.  
Database, 属于哪个数据库  
Users, 哪个用户,IP, 占到所有用户执行的sql百分比  
Query abstract, 抽象后的sql语句  
Query sample, sql语句  
  
  
mysqlsla常用参数说明：  
  
1) -log-type (-lt) type logs:  
通过这个参数来制定log的类型，主要有slow, general, binary, msl, udl,分析slow log时通过制定为slow.  
  
2) -sort:  
制定使用什么参数来对分析结果进行排序，默认是按照t\_sum来进行排序。  
t\_sum:按总时间排序  
c\_sum:按总次数排序  
c\_sum\_p: sql语句执行次数占总执行次数的百分比。  
  
3) -top:  
显示sql的数量，默认是10,表示按规则取排序的前多少条  
  
4) –statement-filter (-sf) \[+-\]\[TYPE\]:  
过滤sql语句的类型，比如select、update、drop.  
\[TYPE\]有SELECT, CREATE, DROP, UPDATE, INSERT，例如"+SELECT,INSERT"，不出现的默认是-，即不包括。  
  
5) db：要处理哪个库的日志：  
  
例如，只取backup库的select语句、按c\_sum\_p排序的前2条记录  
  
\[root@localhost mysqlsla-2.03\]\# mysqlsla -lt slow -sort c\_sum\_p  -sf  "+select" -db backup -top 2  /tmp/127\_slow.log  
Report for slow logs: /tmp/127\_slow.log  
4 queries total, 3 unique  
Sorted by 'c\_sum\_p'  
Grand Totals: Time 1 s, Lock 1 s, Rows sent 18, Rows Examined 195  
  
  
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ 001 \_\_\_  
Count         : 2  (50.00%)  
Time          : 0 total, 0 avg, 0 to 0 max  (0.00%)  
Lock Time (s) : 0 total, 0 avg, 0 to 0 max  (0.00%)  
Rows sent     : 1 avg, 1 to 1 max  (11.11%)  
Rows examined : 86 avg, 77 to 94 max  (87.69%)  
Database      :  
Users         :  
        root@localhost  : 100.00% (2) of query, 100.00% (4) of all users  
  
Query abstract:  
SELECT SUM(format(duration,N)) AS duration FROM information\_schema.profiling WHERE query\_id=N;  
  
Query sample:  
select sum(format(duration,6)) as duration from information\_schema.profiling where query\_id=7;  
  
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ 002 \_\_\_  
Count         : 1  (25.00%)  
Time          : 1 s total, 1 s avg, 1 s to 1 s max  (100.00%)  
Lock Time (s) : 1 s total, 1 s avg, 1 s to 1 s max  (100.00%)  
Rows sent     : 4 avg, 4 to 4 max  (22.22%)  
Rows examined : 12 avg, 12 to 12 max  (6.15%)  
Database      :  
Users         :  
        root@localhost  : 100.00% (1) of query, 100.00% (4) of all users  
  
Query abstract:  
SELECT \* FROM tt WHERE a=N;  
  
Query sample:  
select \* from tt where a=2;  
\[root@localhost mysqlsla-2.03\]\#

\[root@localhost mysqlsla-2.03\]\#

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