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On SSDs – Lifespans, Health Measurement and RAID

 | October 12, 2012 |  Posted In: Intel, MLC, ssd

Solid State Drive (SSD) have made it big and have made their way not only in desktop computing but also in mission-critical servers. SSDs have proved to be a break-through in IO performance and leave HDD far far behind in terms of Random IO performance. Random IO is what most of the database administrators would […]

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Released: Percona Toolkit 2.1.5

 | October 12, 2012 |  Posted In: Events and Announcements, Percona Software, XtraDB Cluster

Although Percona Toolkit 2.1.4 was recently released, we soon after found and fixed a couple of bugs concerning how pt-table-checksum works with Percona XtraDB Cluster: pt-table-checksum 2.1.4 doesn’t detect diffs on Percona XtraDB Cluster nodes pt-table-checksum 2.1.4 miscategorizes Percona XtraDB Cluster-based slaves as cluster nodes There was also a bug affecting pt-table-sync –version-check, and the […]

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First of New NSF Big Data Grants Go to Tokutek Founders

 | October 11, 2012 |  Posted In: Tokutek, TokuView

The core technology behind Tokutek is based on the academic research by our founders: Michael Bender, Bradley Kuszmaul and Martin Farach-Colton.  They are all still in academia, in addition to their work at Tokutek. Back in March, the White House kicked off a new Initiative for Big Data.  Last week, the National Science Foundation announced […]

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Announcing Percona Server 5.5.27-29.0

 | October 11, 2012 |  Posted In: MySQL

Percona is glad to announce the release of Percona Server 5.5.27-29.0 on October 11th, 2012 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.5.27, including all the bug fixes in it, Percona Server 5.5.27-29.0 is now the current stable release in the 5.5 series. All of Percona‘s software is open-source and free, all the details of the release can […]

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ODBMS Interview: Scaling MySQL and MariaDB to TBs

 | October 9, 2012 |  Posted In: Tokutek, TokuView

Recently, our CTO, Martín Farach-Colton had a chance to talk about scaling MySQL and MariaDB with Roberto Zicari of ODBMS. In the article, Martin states “While I believe that one size fits most, claims that RDBMS can no longer keep up with modern workloads come in from all directions. When people talk about performance of […]

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MySQL 5.6.7-RC in tpcc-mysql benchmark

 | October 8, 2012 |  Posted In: Benchmarks, MySQL

MySQL 5.6.7 RC is there, so I decided to test how it performs in tpcc-mysql workload from both performance and stability standpoints. I can’t say that my experience was totally flawless, I bumped into two bugs: MySQL 5.6.7 locks itself on CREATE INDEX MySQL 5.6.7-rc crashed under tpcc-mysql workload But at the end, is not […]

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Review of MySQL 5.6 Defaults Changes

 | October 8, 2012 |  Posted In: Insight for DBAs, MySQL

James Day just posted the great summary of defaults changes in MySQL 5.6 compared to MySQL 5.5 In general there are a lot of good changes and many defaults are now computed instead of hardcoded. Though some of changes are rather puzzling for me. Lets go over them: back_log = 50 + ( max_connections / […]

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