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MySQL Feed

Oracle MySQL resources, news, and support articles.

GHOST vulnerability (CVE-2015-0235) Percona response

Cloud security company Qualys announced Tuesday the issues prevalent in glibc since version 2.2 introduced in 2000-11-10 (the complete Qualys announcement may be viewed here). The vulnerability, CVE-2015-0235, has been dubbed “GHOST.”As the announcement from Qualys indicates, it is believed that MySQL and by extension Percona Server are not affected by this issue.

Multi-threaded replication with MySQL 5.6: Use GTIDs!

MySQL 5.6 allows you to execute replicated events in parallel as long as data is split across several databases. This feature is named “Multi-Threaded Slave” (MTS) and it is easy to enable by setting slave_parallel_workers to a > 1 value. However if you decide to use MTS without GTIDs, you may run into annoying issues. Let’s look at two of them.

Percona University: Back to school Feb. 12 in Raleigh, N.C.

Percona CEO Peter Zaitsev leads a track at the inaugural Percona University event in Raleigh, N.C. on Jan. 29, 2013.

MySQL Cluster 7.2.19 Released



The binary and source versions of MySQL Cluster 7.2.19 have now been made available at http://dev.mysql.com/downloads/cluster/7.2.html.

Percona Toolkit 2.2.13 is now available

Percona is pleased to announce the availability of Percona Toolkit 2.2.13.  Released January 26, 2015.

Reading RBR binary logs with pt-query-digest

For purposes of auditing anything that goes on our servers we're looking to parse the binary logs of all servers (masters), as with "Anemomaster". With Row Based Replication this is problematic since pt-query-digest does not support parsing RBR binary logs (true for 2.2.12, latest at this time).

MySQL benchmarks on eXFlash DIMMs

In this blog post, we will discuss MySQL performance on eXFlash DIMMs. Earlier we measured the IO performance of these storage devices with sysbench fileio.EnvironmentThe benchmarking environment was the same as the one we did sysbench fileio in.CPU: 2x Intel Xeon E5-2690 (hyper threading enabled) FusionIO driver version: 3.2.6 build 1212 Operating system: CentOS 6.5 Kernel version: 2.6.32-431.el6.x86_64

Using Percona Cloud Tools to solve real-world MySQL problems

For months when speaking with customers I have been positioning Percona Cloud Tools (PCT) as a valuable tool for the DBA/Developer/SysAdmin but only recently have I truly been able to harness the data and make a technical recommendation to a customer that I feel would have been very difficult to accomplish otherwise.

MySQL Cluster 7.3.8 Released



The binary and source versions of MySQL Cluster 7.3.8 have now been made available at http://www.mysql.com/downloads/cluster/.

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