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Rotating MySQL slow logs safely

 | April 18, 2013 |  Posted In: Insight for DBAs, MySQL

This blog post is part two of two. Like part one, published Wednesday, this is a cross-post from Groupon’s engineering blog. Thanks again to Kyle Oppenheim at Groupon. And one more reminder that I’ll be at the Percona Live MySQL Conference and Expo next week in Santa Clara, California so look for me there. You […]

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Percona XtraDB Cluster 5.5.30-23.7.4 for MySQL now available

 | April 17, 2013 |  Posted In: MySQL, XtraDB Cluster

Percona is glad to announce the release of Percona XtraDB Cluster 5.5.30-23.7.4 for MySQL on April 17, 2013. Binaries are available from the downloads area or from our software repositories. New Features: Percona XtraDB Cluster has implemented initial implementation of weighted quorum. Weight for node can be assigned via pc.weight option in the wsrep_provider_options variable. […]

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Testing the Micron P320h

 | April 16, 2013 |  Posted In: Benchmarks, Hardware and Storage, MySQL

The Micron P320h SSD is an SLC-based PCIe solid-state storage device which claims to provide the highest read throughput of any server-grade SSD, and at Micron’s request, I recently took some time to put the card through its paces, and the numbers are indeed quite impressive. For reference, the benchmarks for this device were performed […]

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Keynotes, BOFs, and the Community Networking Reception at Percona Live MySQL Conference and Expo

 | April 15, 2013 |  Posted In: Events and Announcements, Insight for DBAs, Insight for Developers, MySQL, Percona Live, Percona Software, Percona Toolkit, XtraDB Cluster

The Percona Live MySQL Conference and Expo begins next Monday and runs April 22-25, 2013. Attendees will see great keynotes from leaders in the industry including representatives from Oracle, Amazon Web Services, HP, Continuent, and Percona. They can also participate in thought provoking Birds of a Feather sessions on Tuesday night and the Wednesday night […]

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Memory allocators: MySQL performance improvements in Percona Server 5.5.30-30.2

 | April 15, 2013 |  Posted In: Benchmarks, MySQL, Percona Software

In addition to the problem with trx_list scan we discussed in Friday’s post, there is another issue in InnoDB transaction processing that notably affects MySQL performance – for every transaction InnoDB creates a read view and allocates memory for this structure from heap. The problem is that the heap for that allocation is destroyed on […]

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Moving to MySQL 5.6? We can help

 | April 12, 2013 |  Posted In: Events and Announcements, MySQL

If you are looking for a class that is designed to jump-start your knowledge on MySQL 5.6 features, a class that provides hands-on labs, and a class that shows various migration methods – look no further. We have been hard at work building a new class to ensure you have the knowledge and skills needed to verify […]

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