We have always received quite a few questions here at Percona Support on how to avoid the dreaded “Too many connections” error, as well as what is the recommended value for max_connections. So, in this article, I will try to cover the best possible answers to these questions so others can mitigate similar kinds […]Read more
This past Wednesday, I attended a talk at the Washington DC MongoDB User Group given by John Schulz, a chief architect at AOL. In the talk, TokuMX VS MongoDB Bake Off Based on a Primary AOL Use case, he describes his experiments comparing TokuMX with MongoDB for his use case.
The experiments show TokuMX in […]
I recently conducted a test backup of my “master-slave” setup in my VirtualBox as I was migrating from Percona Server 5.6.12 to version 5.6.13-rel61.0 with Percona XtraBackup v2.2.0 rev. 4885. However, doing the backup on my slave, I encountered this problem:
 Compressing and streaming ./test/checksum.ibd
 Compressing and streaming ./mysql/slave_master_info.ibd
Assertion “to_read % cursor->page_size == 0” […]
Downtime caused by a disaster is probable in your application’s lifetime. While caused by a large-scale geographical disaster, cyber attack, spiked consumer demand, or a relatively less catastrophic event, downtime equates to lost business. Setting up geographical disaster recovery (geo-DR) has always been challenging but Percona replication manager (PRM) with booth provides a solution […]Read more
Percona is glad to announce the release of Percona XtraBackup 2.1.6 on November 25th, 2013. Downloads are available from our download site here and Percona Software Repositories.
This release is the current GA (Generally Available) stable release in the 2.1 series. Percona XtraBackup is an open source, free MySQL hot backup software that performs […]
Now that Percona XtraDB Cluster 5.6 is out in beta, I wanted to start a series talking about new features in Galera 3 and PXC 5.6. On the surface, Galera 3 doesn’t reveal a lot of new features yet, but there has been a lot of refactoring of the system in preparation for great […]Read more
Recently, I helped a client that was having issues with deployments causing locking in their production databases. At a high level, the two key components used in the environment were:
Capistrano (scripted deployments) [website]
Liquibase (database version control) [website]
At a high level, they currently used a CLI call to Liquibase as a sub-task within a larger […]Read more
Percona is glad to announce the first Beta release of Percona XtraDB Cluster 5.6 on November 21st, 2013. Binaries are available from downloads area or from our software repositories.
Based on Percona Server 5.6.14-62.0 including all the bug fixes in it, Galera Replicator 3.1 and on Codership wsrep API 5.6.14-25.1 is now the first BETA […]
It is a rather frequent problem to have to manage Virtual IP addresses (VIPs) with a Percona XtraDB Cluster (PXC) or with MySQL master HA (MHA). In order to help solving these problems, I wrote a Pacemaker agent, mysql_monitor that is a simplified version of the mysql_prm agent. The mysql_monitor agent only monitors MySQL […]Read more
You love MongoDB for its ease of deployment – but are you worried about how your application will perform when it starts to scale?
SPEAKER: Tim Callaghan, VP of Engineering at Tokutek
DATE: Wednesday, November 20th
TIME: 1pm ET
Join this interactive webinar with industry expert Tim Callaghan, Tokutek’s VP of Engineering, as he walks […]