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Category Archives: MySQL

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Measuring Docker IO overhead

This will be another post on using Percona Server via a Docker image. I want to follow up on my previous post regarding CPU/Network overhead in Docker “Measuring Percona Server Docker CPU/network overhead” by measuring  if there is …

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EXPLAIN FORMAT=JSON: buffer_result is not hidden!

Time for another entry in the EXPLAIN FORMAT=JSON is cool! series. Today we’re going to look at how you can view the buffer result using JSON (instead of the regular EXPLAIN command. Regular EXPLAIN does not identify …

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Percona Server 5.7.10-2 second RC available

Percona is glad to announce the second release candidate of Percona Server 5.7.10-2 on February 8, 2016. Download the latest version from the Percona web site or from the Percona Software Repositories. Based on MySQL 5.7.10, including all …

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Percona XtraBackup 2.4.0-rc1 is now available

Percona is glad to announce the first release candidate of Percona XtraBackup 2.4.0-rc1 on February 8th 2016. Downloads are available from our download site and from apt and yum repositories. This is a Release Candidate …

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MySQL 5.7: Introduction for Operational DBAs

Join us Tuesday, February 16, 2016 9:00am PST (UTC-8) for a webinar on the operational and monitoring features of MySQL 5.7 with Percona CEO Peter Zaitsev. MySQL 5.7 is a great release, providing valuable features …

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Measuring Percona Server Docker CPU/network overhead

Now that we have our Percona Server Docker images, I wanted to measure the performance overhead when we run the database in the container. Since Docker promises to use a lightweight container, in theory there should be very light overhead. …

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Experimental Percona Docker images for Percona Server

Docker is incredibly popular tool for deploying software, so we decided to provide a Percona Docker image for both Percona Server MySQL and Percona Server for MongoDB. We want to create an easy way to try …

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EXPLAIN FORMAT=JSON knows everything about UNIONs: union_result and query_specifications

Ready for another post in the EXPLAIN FORMAT=JSON is Cool series! Great! This post will discuss how to see all the information that is contained in optimized queries with UNION using the union_result and query_specifications commands.   When …

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Percona XtraDB Cluster 5.6.28-25.14 is now available

Percona is glad to announce the new release of Percona XtraDB Cluster 5.6 on January 29, 2016. Binaries are available from the downloads area or from our software repositories. Percona XtraDB Cluster 5.6.28-25.14 is now the …

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Setup a MongoDB replica/sharding set in seconds

In the MySQL world, we’re used to playing in the MySQL Sandbox. It allows us to deploy a testing replication environment in seconds, without a great deal of effort or navigating multiple virtual machines. It is a …

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