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Sphinx Technologies launches Sphinx Support

 | March 24, 2009 |  Posted In: Events and Announcements

A couple of weeks ago Sphinx Technologies, a company behind Sphinx Full Text Search Engine launched Sphinx Support Packages which I think is a great value for everyone using Sphinx in Production. This is also a great way to support the project and get something in return – even if you’re not actively using support […]

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PROCEDURE ANALYSE

 | March 23, 2009 |  Posted In: Insight for DBAs

Quite common task during schema review is to find the optimal data type for the column value – for example column is defined as INT but is it really needed or may be SMALLINT or even TINYINT will do instead. Does it contain any NULLs or it can be defined NOT NULL which reduces space […]

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MySQL random freezes could be the query cache

 | March 19, 2009 |  Posted In: Insight for DBAs

I feel like I’ve been seeing this a lot lately. occasionally, seemingly innocuous selects take unacceptably long. Or Over the past few weeks, we’ve been having bizarre outages during which everything seems to grind to a halt… and then fixes itself within 5 minutes. We’ve got plenty of memory, we’re not running into swap, and […]

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MySQL insert performance with iiBench Python client

 | March 18, 2009 |  Posted In: Tokutek, TokuView

Mark Callaghan recently developed and released an enhanced Python version of Tokutek’s iiBench benchmark (Thanks Mark!). We’re happy to see a Python version of the benchmark as it can now more easily be run by a broader group of people in more diverse environments. Going forward, we will continue building upon Mark’s work on the […]

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Converting Character Sets

 | March 17, 2009 |  Posted In: Insight for Developers

The web is going the way of utf8. Drizzle has chosen it as the default character set, most back-ends to websites use it to store text data, and those who are still using latin1 have begun to migrate their databases to utf8. Googling for “mysql convert charset to utf8” results in a plethora of sites, […]

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Compression for InnoDB backup

 | March 16, 2009 |  Posted In: Benchmarks, Insight for DBAs

Playing with last version of xtrabackup and compress it I noticed that gzip is unacceptable slow for both compression and decompression operations. Actually Peter wrote about it some time ago, but I wanted to review that data having some new information. In current multi-core word the compression utility should utilize several CPU to speedup operation, […]

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xtrabackup-0.3, binaries and stream backup

 | March 13, 2009 |  Posted In: Percona Software

We are coming with next version of xtrabackup – online backup solution for MySQL 5.0 / 5.1 and InnoDB standard version, plugin modification and XtraDB. We still consider it as alpha version, though it shows perfect stable results in our tests. Let me address two often asked question about xtrabackup: 1) Does it work only […]

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Percona at PHP Quebec 09

 | March 10, 2009 |  Posted In: Events and Announcements

Percona presented two talks at PHP Quebec last week – one on A Tour of MySQL High Availability, and another on Performance Tuning MySQL. There was a great reaction to showcasing some of the quick-wins that can be found by using the Percona patches. Unfortunately, the one thing that I forgot to mention in the […]

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When would you use SAN with MySQL ?

 | March 9, 2009 |  Posted In: Hardware and Storage

One question which comes up very often is when one should use SAN with MySQL, which is especially popular among people got used to Oracle or other Enterprise database systems which are quite commonly deployed on SAN. My question in such case is always what exactly are you trying to get by using SAN ?

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