Comments on: Take a look at mk-query-digest http://ronaldbradford.com/blog/take-a-look-at-mk-query-digest-2009-10-08/ Expert times and information on MySQL Thu, 09 May 2013 15:50:26 +0000 hourly 1 http://wordpress.org/?v=3.0.4 By: [Thanks Percona] Percona/MySQL响应时间统计 - 一个故事@MySQL DBA http://ronaldbradford.com/blog/take-a-look-at-mk-query-digest-2009-10-08/comment-page-1/#comment-12659 [Thanks Percona] Percona/MySQL响应时间统计 - 一个故事@MySQL DBA Mon, 19 Sep 2011 13:03:05 +0000 http://ronaldbradford.com/blog/?p=2185#comment-12659 [...] "响应时间"（Response time，后面简称RT）在数据库应用中，特别是OLTP的场景，可以说非常重要，不过，MySQL官方版本中一直没有加上这个统计功能。最早，社区开始尝试tcmdump+perl脚本的方式查看RT，后来告警一点用tcpdump+mk-query-digest，再后来Ignacio Nin和Baron Schwartz完成了tcprstat。 [...] [...] "响应时间"（Response time，后面简称RT）在数据库应用中，特别是OLTP的场景，可以说非常重要，不过，MySQL官方版本中一直没有加上这个统计功能。最早，社区开始尝试tcmdump+perl脚本的方式查看RT，后来告警一点用tcpdump+mk-query-digest，再后来Ignacio Nin和Baron Schwartz完成了tcprstat。 [...]

]]> By: Sean Mcwen http://ronaldbradford.com/blog/take-a-look-at-mk-query-digest-2009-10-08/comment-page-1/#comment-12650 Sean Mcwen Sun, 04 Sep 2011 11:37:57 +0000 http://ronaldbradford.com/blog/?p=2185#comment-12650 cat `ls -r tcpdump.* | tail -1` | ./mk-query-digest –type tcpdump –limit 50 cat `ls -r tcpdump.* | tail -1` | ./mk-query-digest –type tcpdump –limit 50

]]> By: Diagnosing MySQL performance bottlenecks with Maatkit – Nexcess Blog http://ronaldbradford.com/blog/take-a-look-at-mk-query-digest-2009-10-08/comment-page-1/#comment-11542 Diagnosing MySQL performance bottlenecks with Maatkit – Nexcess Blog Sun, 06 Mar 2011 00:09:46 +0000 http://ronaldbradford.com/blog/?p=2185#comment-11542 [...] query log or full query log) or to look through a tcpdump log, which you can see how to do here or here. Since we’re really just looking to analyse a single query, most of those would be overkill, [...] [...] query log or full query log) or to look through a tcpdump log, which you can see how to do here or here. Since we’re really just looking to analyse a single query, most of those would be overkill, [...]

]]> By: Ronald Bradford http://ronaldbradford.com/blog/take-a-look-at-mk-query-digest-2009-10-08/comment-page-1/#comment-9775 Ronald Bradford Sat, 13 Nov 2010 20:21:25 +0000 http://ronaldbradford.com/blog/?p=2185#comment-9775 tcpdump -i any port 3306 -s 65535 -x -nn -q -tttt -c 1000 > /tmp/sample.tcp ./mk-query-digest --type tcpdump /tmp/sample.tcp | more tcpdump -i any port 3306 -s 65535 -x -nn -q -tttt -c 1000 > /tmp/sample.tcp
./mk-query-digest –type tcpdump /tmp/sample.tcp | more

]]> By: What do MySQL Consultants do? | MySQL Expert | MySQL Performance | MySQL Consulting http://ronaldbradford.com/blog/take-a-look-at-mk-query-digest-2009-10-08/comment-page-1/#comment-7026 What do MySQL Consultants do? | MySQL Expert | MySQL Performance | MySQL Consulting Thu, 08 Jul 2010 16:18:43 +0000 http://ronaldbradford.com/blog/?p=2185#comment-7026 [...] Check out my post on using mk-query-digest. [...] [...] Check out my post on using mk-query-digest. [...]

]]> By: Ronald Bradford http://ronaldbradford.com/blog/take-a-look-at-mk-query-digest-2009-10-08/comment-page-1/#comment-6995 Ronald Bradford Wed, 07 Jul 2010 22:21:12 +0000 http://ronaldbradford.com/blog/?p=2185#comment-6995 cat `ls -r tcpdump.* | tail -1` | ./mk-query-digest --type tcpdump --limit 50 cat `ls -r tcpdump.* | tail -1` | ./mk-query-digest –type tcpdump –limit 50

]]> By: Ronald Bradford http://ronaldbradford.com/blog/take-a-look-at-mk-query-digest-2009-10-08/comment-page-1/#comment-6976 Ronald Bradford Wed, 07 Jul 2010 17:23:56 +0000 http://ronaldbradford.com/blog/?p=2185#comment-6976 sudo tcpdump -i any port 3306 -s 65535 -x -nn -q -tttt -c 1000 > tcpdump.`date +%y%m%d.%H%M%S`.txt cat tcpdump.100707.192313.txt | ./mk-query-digest --type tcpdump --limit 5 sudo tcpdump -i any port 3306 -s 65535 -x -nn -q -tttt -c 1000 > tcpdump.`date +%y%m%d.%H%M%S`.txt
cat tcpdump.100707.192313.txt | ./mk-query-digest –type tcpdump –limit 5

]]> By: tcpdump errors on FreeBSD for mk-query-digest | MySQL Expert | MySQL Performance | MySQL Consulting http://ronaldbradford.com/blog/take-a-look-at-mk-query-digest-2009-10-08/comment-page-1/#comment-3626 tcpdump errors on FreeBSD for mk-query-digest | MySQL Expert | MySQL Performance | MySQL Consulting Fri, 28 May 2010 19:50:41 +0000 http://ronaldbradford.com/blog/?p=2185#comment-3626 [...] I use this tcpdump command for MySQL query analysis with mk-query-digest, I found recently that it didn’t work on [...] [...] I use this tcpdump command for MySQL query analysis with mk-query-digest, I found recently that it didn’t work on [...]

]]> By: Baron http://ronaldbradford.com/blog/take-a-look-at-mk-query-digest-2009-10-08/comment-page-1/#comment-910 Baron Thu, 08 Oct 2009 14:40:06 +0000 http://ronaldbradford.com/blog/?p=2185#comment-910 Hi Ronald, I've looked into a named pipe or fifo -- the problem is, writes are blocking :-( Hi Ronald,

I’ve looked into a named pipe or fifo — the problem is, writes are blocking :-(

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