mysql监控利器之innotop

安装innotop下载地址：https://github.com/innotop/innotop/releases1、安装依赖 yum install -y perl-TermReadKey2、安装# tar zxf innotop-1.11.4.tar.gz# cd innotop# perl Makefile.PL#make install
perl Makefile.PL 编译错误解决： Can't locate ExtUtils/MakeMaker.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at Makefile.PL line 1. BEGIN failed--compilatio
解决：yum install perl-ExtUtils-Embed -y[root@bj-ksy-p1-kf_master-01 ntupload]# yum install perl-Time-HiRes
错误2：[root@bj-ksy-p1-kf_master-01 ntupload]# innotop -urootCan't locate Time/HiRes.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at /usr/local/bin/innotop line 1417.BEGIN failed--compilation aborted at /usr/local/bin/innotop line 1417.[root@bj-ksy-p1-kf_master-01 ntupload]# innotop --helpCan't locate Time/HiRes.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at /usr/local/bin/innotop line 1417.解决办法：

一、监控1、连接innotop -uroot -proot -h127.0.0.1
2、输入？，则进入帮助页面
3、第一部分为可切换的模式-输入相应的大写字母第二部分可进行的操作-输入相应的小写字母第三部分 其他-配置类操作
4、Q Query Listinnodb中最常用的模式，输入大写Q，进入该模式的视图页面。[RO] Query List (? for help) localhost, 17d, 10.47 QPS, 58/1/59 con/run/cac thds, 5.6.29-logWhen Load Cxns QPS Slow Se/In/Up/De% QCacheHit KCacheHit BpsIn BpsOutNow 0.05 58 10.47 0 32/ 0/ 0/ 0 0.00% 100.00% 5.60k 20.38kTotal 0.00 7.81k 14.99 11.01k 36/ 2/ 2/ 0 0.00% 99.99% 2.55k 20.79kCmd ID State User Host DB Time Query参数详解Load 是负载QPS (Query Per Second) 表示每秒的查询率Slow 代表慢查询的个数Se/In/Up/De%: 查询/插入/更新/删除的比例QCacheHit:查询缓冲的命中率KCacheHit:索引的命中率BpsIn （bytes Per Second in） 每秒输入的字节数BpsOut（bytes Per Second Out）每秒输出的字节数在这个页面，可输入e、f、o等键e键 : 按e并输入thread ID,就能显示该SQL的执行计划f键 : 显示当前正在运行的完整SQL语句o键 : 显示当前SQL被mysql内部优化后的SQLB InnoDB Buffers
模式显示有关InnoDB Buffer Pool，页面统计，插入缓冲，自适应哈希索引。使用的是show innodb status的数据。____________________________ Buffer Pool _____________________________Size Free Bufs Pages Dirty Pages Hit Rate Memory Add'l Pool63.99k 13207 48854 0 1000 / 1000 1.02G 0____________________ Page Statistics _____________________Reads Writes Created Reads/Sec Writes/Sec Creates/Sec21299 240690 29436 0.00 0.61 0.00______________________ Insert Buffers ______________________Inserts Merged Recs Merges Size Free List Len Seg. Size 0 0 1 1316 1318__________________ Adaptive Hash Index __________________Size Cells Used Node Heap Bufs Hash/Sec Non-Hash/Sec2.26M 3467 0.04 139.75Buffer PoolSize : 某sql使用Buffer Pool的大小Free Bufs : Innodb_buffer_pool_pages_free的值,空页数;Pages: Innodb_buffer_pool_pages_data的值, 包含数据的页数(脏或干净)Dirty Pages : Innodb_buffer_pool_pages_dirty的值,当前的脏页数Hit Rate: 命中率Memory : Innodb_buffer_pool_size 的值.Add'l Pool : innodb_additional_mem_pool_size的值Page StatisticsReads : Innodb_pages_read 的值,读取的页数Writes : Innodb_pages_written 的值,写入的页数Created : Innodb_pages_created 的值,创建的页数Reads/Sec : 每秒读取的页数Writes/Sec : 每秒写入的页数Creates/Sec : 每秒创建的页数Insert BuffersInserts : 表示执行insert 次数Merged Recs : 表示执行 insert 索引树合并的次数Merges: insert 语句合并的次数Size: 写缓冲的大小Free List Len : 空闲列表长度Seg. Size: 　段块大小Adaptive Hash Index 自适应哈希索引Size: 哈希索引占用大小Cells Used:Node Heap Bufs:Hash/Sec: 每秒哈希索引量Non-Hash/Sec: 每秒非哈希索引的量D InoDB Deadlocks
显示innodb产生的死锁,和产生死锁的语句。______________________ Deadlock Transactions ______________________ID Timestring User Host Victim Time Undo LStrcts Query Text____________________ Deadlock Locks ____________________ID Waiting Mode DB Table Index Special Ins Intent参数详解：ID:连接线程ID号Timestring : 死锁发生的时间User: 用户名Host:主机Victim:Yes表示这个死锁SQL被强行终止了.No表示这个SQL正在执行Time : 这条SQL的运行时间Undo ： 回滚LStrcts： 不知道是什么的缩写Query Text : 死锁执行的SQLI InnoDB I/O Info
显示InnoDB的I / O统计，包括I / O线程，挂起的I / O，文件I / O，日志统计_________________________ I/O Threads __________________________Thread Purpose Thread Status 0 insert buffer thread waiting for completed aio requests 1 log thread waiting for completed aio requests 2 read thread waiting for completed aio requests 3 read thread waiting for completed aio requests 4 read thread waiting for completed aio requests 5 read thread waiting for completed aio requests 6 write thread waiting for completed aio requests 7 write thread waiting for completed aio requests 8 write thread waiting for completed aio requests 9 write thread waiting for completed aio requests____________________________ Pending I/O _____________________________Async Rds Async Wrt IBuf Async Rds Sync I/Os Log Flushes Log I/Os 0 0 0 0________________________ File I/O Misc _________________________OS Reads OS Writes OS fsyncs Reads/Sec Writes/Sec Bytes/Sec 22142 1163454 982096 0.00 0.00 0_____________________ Log Statistics ______________________Sequence No. Flushed To Last Checkpoint IO Done IO/Sec20178545268 20178545268 20178545268 870538 0.00Pending I/O 挂起的IOAsync Rds : Asynchronous Reads 异步读Async Wrt: : Asynchronous Write 异步写IBuf Async Rds: : Innodb Buffer Asynchronous Reads 缓冲池的异步读Sync I/Os: : Asynchronous Input/Output:的异步Log Flushes : log FlushesLog I/Os : Input/Output 异步写入/读出日志File I/O Misc(文件IO)OS Reads: 系统I./O的读OS Writes: 系统.I/O的写OS fsyncs: 系统文件同步Reads/Sec: 每秒多少次读Writes/Sec: 每秒多少次写Bytes/Sec: 每秒多少字节的输入输出Log Statistics(日志统计)Sequence No: Innodb buffer 里面的 LSN 号Flushed To: 刷新到事务日志的LSN号Last Checkpoint:: LSN的检查点IO Done: 多少I/O已经完成IO/Sec: 每秒I/O次数