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Percona XtraDB Cluster: Quorum and Availability of the cluster

 | June 12, 2015 |  Posted In: MySQL

Percona XtraDB Cluster (PXC) has become a popular option to provide high availability for MySQL servers. However many people are still having a hard time understanding what will happen to the cluster when one or several nodes leave the cluster (gracefully or ungracefully). This is what we will clarify in this post. Nodes leaving gracefully […]

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MaxScale: A new tool to solve your MySQL scalability problems

 | June 8, 2015 |  Posted In: High-availability, MySQL, Percona XtraDB Cluster, XtraDB Cluster

Ever since MySQL replication has existed, people have dreamed of a good solution to automatically split read from write operations, sending the writes to the MySQL master and load balancing the reads over a set of MySQL slaves. While if at first it seems easy to solve, the reality is far more complex. First, the […]

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High availability using MySQL in the cloud

 | June 4, 2015 |  Posted In: High-availability, MySQL, OpenStack

Next Wednesday (June 10) I’ll be co-presenting a webinar on using MySQL in the cloud for High Availability (HA). Joining me will be 451 Research analyst Jason Stamper and together we’ll talk about the realities of HA using MySQL in the cloud and how vendors are responding to changing application requirements with new developments that […]

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Percona XtraDB Cluster 5.6.24-25.11 is now available

 | June 3, 2015 |  Posted In: Events and Announcements, MySQL, Percona Software, Percona XtraDB Cluster

Percona is glad to announce the new release of Percona XtraDB Cluster 5.6 on June 3rd 2015. Binaries are available from downloads area or from our software repositories. Based on Percona Server 5.6.24-72.2 including all the bug fixes in it, Galera Replicator 3.11, and on Codership wsrep API 25.11, Percona XtraDB Cluster 5.6.24-25.11 is now […]

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Optimizing Percona XtraDB Cluster for write hotspots

 | June 3, 2015 |  Posted In: InnoDB, Insight for DBAs, MySQL, Percona XtraDB Cluster

Some applications have a heavy write workload on a few records – for instance when incrementing a global counter: this is called a write hotspot. Because you cannot update the same row simultaneously from multiple threads, this can lead to performance degradation. When using Percona XtraDB Cluster (PXC), some users try to solve this specific […]

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Percona TokuMXse 3.0.3-1.0-rc6 is now available

 | June 1, 2015 |  Posted In: Events and Announcements, MongoDB, Percona Software

Percona is glad to announce the release of Percona TokuMXse 3.0.3-1.0rc6 on June 1st 2015. TokuMXse is a TokuMX storage engine for MongoDB 3.0.3. Downloads are available from our download site here. Packages for this Release Candidate release, will be available in our Ubuntu Trusty, Utopic, Vivid, and Debian Jessie apt testing and CentOS 7 […]

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New PERFORMANCE_SCHEMA defaults in MySQL 5.7.7

 | June 1, 2015 |  Posted In: EXPLAIN, MySQL

I thought it was worth a moment to reiterate on the new Performance Schema related defaults that MySQL 5.7.7 brings to the table, for various reasons. For one, most of you might have noticed that profiling was marked as deprecated in MySQL 5.6.7. So it is expected that you invest into learning more about Performance […]

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