open source databases

Foreign Data Wrappers in PostgreSQL and a closer look at postgres_fdw

Foreign data wrapper FDWs with PostgreSQL postgres_fdw

There are a few features in PostgreSQL that are very compelling, and that I rarely see in other RDBMSs. Some of these features are the driving force behind the growing popularity of PostgreSQL. This blog post is about one of my favourite features: FDW (Foreign Data Wrapper). As the name indicates, this feature allows a […]

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MongoDB: how to use the JSON Schema Validator

JSON Schema Validator for MongoDB

The flexibility of MongoDB as a schemaless database is one of its strengths. In early versions, it was left to application developers to ensure that any necessary data validation is implemented. With the introduction of JSON Schema Validator there are new techniques to enforce data integrity for MongoDB. In this article, we use examples to show you […]

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Open Source Database Community Blog: The Story So Far

open source database community blog

Recently, we initiated a new project, the Open Source Database Community Blog. One way to think of this is as an online, year round version of the Percona Live conferences. If you have a story to tell, an experience to share, or a lesson to be learned send it along. As long as it’s […]

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Saving With MyRocks in The Cloud

The main focus of a previous blog post was the performance of MyRocks when using fast SSD devices. However, I figured that MyRocks would be beneficial for use in cloud workloads, where storage is either slow or expensive.
In that earlier post, we demonstrated the benefits of MyRocks, especially for heavy IO workloads. Meanwhile, Mark wrote in […]

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Webinar Wed 7/19: MongoDB Sharding

MongoDB shard zones

Please join Percona’s Senior Support Engineer, Adamo Tonete as he presents MongoDB Sharding 101 on July 19th, 2018, at 12:30 PM PDT (UTC-7) / 3:30 PM EDT (UTC-4).
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This tutorial is a continuation of advanced topics for the DBA. In it, we will share best practices and tips on how to perform the most […]

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Webinar Wed 7/18: MariaDB 10.3 vs. MySQL 8.0

MariaDB 10.3 vs MySQL 8.0

Please join Percona’s Chief Evangelist, Colin Charles as he presents as he presents MariaDB 10.3 vs. MySQL 8.0 on Wednesday, July 18th, 2018, at 9:00 AM PDT (UTC-7) / 12:00 PM EDT (UTC-4).
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Technical considerations
Are they syntactically similar? Where do these two databases differ? Why would I use one over the other?
MariaDB 10.3 is […]

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Why Consumer SSD Reviews are Useless for Database Performance Use Case

Anandtech Table reviewing consumer SSD performance

If you’re reading consumer SSD reviews and using them to estimate SSD performance under database workloads, you’d better stop. Databases are not your typical consumer applications and they do not use IO in the same way.
Let’s look, for example, at this excellent AnandTech review of Samsung 960 Pro –  a consumer NVMe device that […]

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InnoDB Cluster in a Nutshell: Part 2 MySQL Router

MySQL Router MySQL Cluster

MySQL InnoDB Cluster is an Oracle High Availability solution that can be easily installed over MySQL to provide high availability with multi-master capabilities and automatic failover. In the previous post we presented the first component of InnoDB Cluster, group replication. Now we will go through the second component, MySQL Router.  We will address MySQL Shell in a final […]

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Percona Live Europe 2018 Call for Papers is Now Open

Percona Live Europe Open Source Database Conference PLE 2018

Announcing the opening of the Percona Live Europe Open Source Database Conference 2018 in Frankfurt, Germany call for papers. It will be open from now until August 10, 2018. The conference takes place November 5–7.
Our theme this year is
Connect. Accelerate. Innovate.
As a speaker at Percona Live Europe, you’ll have the opportunity to CONNECT with […]

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Faster Point In Time Recovery (PITR) in PostgreSQL Using a Delayed Standby

PostgreSQL Point in Time Recovery

The need to recover a database back to a certain point in time can be a nerve-racking task for DBAs and for businesses. Can this be simplified? Could it be made to work faster? Can we recover to a given point in time with zero loss of transactions/records? Fortunately, the answer to these questions […]

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