Insight for DBAs

Webinar Thurs 16/8: Developing an App on MongoDB: Tips and Tricks

Please join Percona’s Sr. Technical Operations Architect Tim Vaillancourt as he presents Developing an App on MongoDB: Tips and Tricks on Thursday, August 16th, 2018, at 10:00 AM PDT (UTC-7) / 1:00 PM EDT (UTC-4).
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A lot of developers prefer using MongoDB to other open source databases when developing applications. But why? How do 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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Tuning Autovacuum in PostgreSQL and Autovacuum Internals

Tuning Autovacuum in PostgreSQL

The performance of a PostgreSQL database can be compromised by dead tuples, since they continue to occupy space and can lead to bloat. We provided an introduction to VACUUM and bloat in an earlier blog post. Now, though, it’s time to look at autovacuum for postgres, and the internals you to know to maintain […]

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Resource Usage Improvements in Percona Monitoring and Management 1.13

PMM 1-13 reduction CPU usage by 5x

In Percona Monitoring and Management (PMM) 1.13 we have adopted Prometheus 2, and with this comes a dramatic improvement in resource usage, along with performance improvements!
What does it mean for you? This means you can have a significantly larger number of servers and database instances monitored by the same PMM installation. Or you can […]

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Replicating from MySQL 8.0 to MySQL 5.7

replicate from MySQL 8 to MySQL 5.7

In this blog post, we’ll discuss how to set a replication from MySQL 8.0 to MySQL 5.7. There are some situations that having this configuration might help. For example, in the case of a MySQL upgrade, it can be useful to have a master that is using a newer version of MySQL to an older […]

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Basic Understanding of Bloat and VACUUM in PostgreSQL

VACUUM and Bloat PostgreSQL

Implementation of MVCC (Multi-Version Concurrency Control) in PostgreSQL is different and special when compared with other RDBMS. MVCC in PostgreSQL controls which tuples can be visible to transactions via versioning.
What is versioning in PostgreSQL?
Let’s consider the case of an Oracle or a MySQL Database. What happens when you perform a DELETE or an UPDATE […]

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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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Upcoming Webinar Tuesday, 7/31: Using MySQL for Distributed Database Architectures

Distributed Database Architectures

Please join Percona’s CEO, Peter Zaitsev as he presents Using MySQL for Distributed Database Architectures on Tuesday, July 31st, 2018 at 7:00 AM PDT (UTC-7) / 10:00 AM EDT (UTC-4).

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In modern data architectures, we’re increasingly moving from single-node design systems to distributed architectures using multiple nodes – often spread across multiple databases and […]

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Webinar Weds 7/25: XA Transactions

xa transactions distributed transactions

Please join Percona Senior MySQL DBA for Managed Services, Dov Endress, as he presents XA Transactions on Wednesday, July 25th, 2018 at 12:00 PM PDT (UTC-7) / 3:00 PM EDT (UTC-4).
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Distributed transactions (XA) are becoming more and more vital as applications evolve. In this webinar, we will learn what distributed transactions are and […]

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