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MySQL Feed

Oracle MySQL resources, news, and support articles.

A closer look at the MySQL ibdata1 disk space issue and big tables

A recurring and very common customer issue seen here at the Percona Support team involves how to make the ibdata1 file “shrink” within MySQL. I can only imagine there’s a degree of regret by some of the InnoDB architects on their design decisions regarding disk-space management by the shared tablespace* because this has been a big frustration for many MySQL users over the years.

How to use MySQL Global Transaction IDs (GTIDs) in production

Reconfiguring replication has always been a challenge with MySQL. Each time the replication topology has to be changed, the process is tedious and error-prone because finding the correct binlog position is not straightforward at all. Global Transaction IDs (GTIDs) introduced in MySQL 5.6 aim at solving this annoying issue.The idea is quite simple: each transaction is associated with a unique identifier shared by all servers in a given replication topology. Now reconfiguring replication is easy as the correct binlog position can be automatically calculated by the server.

How to use MySQL Global Transaction IDs (GTIDs) in production

Reconfiguring replication has always been a challenge with MySQL. Each time the replication topology has to be changed, the process is tedious and error-prone because finding the correct binlog position is not straightforward at all. Global Transaction IDs (GTIDs) introduced in MySQL 5.6 aim at solving this annoying issue.The idea is quite simple: each transaction is associated with a unique identifier shared by all servers in a given replication topology. Now reconfiguring replication is easy as the correct binlog position can be automatically calculated by the server.

5 great new features from Percona Cloud Tools for MySQL

It’s been three months since we announced anything for Percona Cloud Tools, not because we’ve been idle but because we’ve been so busy the time flew by!  Here’s the TL;DR to pique your interest:

Getting my hands dirty on an OpenStack lab

Like you all may know, OpenStack is currently one of the coolest open source projects, so I was thrilled when I was asked to manage the deployment of an OpenStack lab for internal Percona use. Starting from basically zero, I created tasks in our Jira and assigned them to a pool of volunteer consultants.

Make a difference! See the world! Speak at Percona Live London; Santa Clara!

Twice each year members of the global open-source community converge on London in November and Santa Clara in April to network with, and learn from, some of the world’s most experienced and accomplished system architects, developers and DBAs.

Containing your MySQL Instances

Virtual servers for MySQL are popular but are they the answer? Should we be containing our instances instead. An Updated Performance Comparison of
Virtual Machines and Linux Containers
is an interesting study of using containers over VMs by four brilliant folk from IBM Research in Austin. There are several benefits to containers that are detailed in the study.

Benchmarking IBM eXFlash™ DIMM with sysbench fileio

Diablo Technologies engaged Percona to benchmark IBM eXFlash™ DIMMs in various aspects. An eXFlash™ DIMM itself is quite an interesting piece of technology. In a nutshell, it’s flash storage, which you can put in the memory DIMM slots. Enabled by Diablo’s Memory Channel Storage™ technology, this practically means low latency and some unique performance characteristics.

Measuring failover time for ScaleArc load balancer

ScaleArc hired Percona to benchmark failover times for the ScaleArc database traffic management software in different scenarios. We tested failover times for various clustered setups, where ScaleArc itself was the load balancer for the cluster.

Release Candidate Packages for RHEL 7 and CentOS 7 are now available

The Percona team is pleased to announce the Release Candidate for Percona Software packages for Red Hat Enterprise Linux 7 and CentOS 7.

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