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Search Results for: mysql profiling production

What stopped MySQL? Tracing back signals sent to MySQL

Have you ever had a case where you needed to find a process which sent a HUP/KILL/TERM or other signal to your database? Let me rephrase. Did you ever have to find which process messed …

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MySQL server memory usage troubleshooting tips

There are many blog posts already written on topics related to “MySQL server memory usage,” but nevertheless there are some who still get confused when troubleshooting issues associated with memory usage for MySQL. As a …

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MySQL QA Team Benchmarks for MySQL 5.1.30

As you might have seen MySQL QA Team has published their benchmarks for MySQL 5.0.72 and 5.1.30. It is interesting to compare with results I posted previously

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MySQL Stored Procedures problems and use practices

To be honest I’m not a big fan of Stored Procedures, At least not in the form they are currently implemented in MySQL 5.0 Only SQL as a Language Which is ancient ugly for algorithmic …

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MySQL Releases first real Community Release

Few days ago MySQL released MySQL 5.0.37 which I would call first real Community Version, because unlike previous versions which were released from the same source tree as Enterprise MySQL this one has some community …

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Looking deeper into InnoDB’s problem with many row versions

A few days ago I wrote about MySQL performance implications of InnoDB isolation modes and I touched briefly upon the bizarre performance regression I found with InnoDB handling a large amount of versions for a single …

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How TokuMX was Born

With TokuMX 1.4 coming out soon, with (teaser) wonderful improvements made to sharding and updates (and plenty of other goodies), I’ve recently reminisced about how we got TokuMX to this point. We (actually, really John) …

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Automation: A case for synchronous replication

Just yesterday I wrote about math of automatic failover today I’ll share my thoughts about what makes MySQL failover different from many other components and why asynchronous nature of standard replication solution is causing problems …

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Great Talks on Percona Live,NY!, Free Pass opportunity inside

You surely have heard about Percona Live,NY taking place October 1-2 in New York, you however might have been wondering what kind of talks you would see on this event and why would should you …

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Goal driven performance optimization

When your goal is to optimize application performance it is very important to understand what goal do you really have. If you do not have a good understanding of the goal your performance optimization effort …

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