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![Analyze MySQL Audit Logs with ClickHouse and ClickTail](https://cdn-ak-scissors.b.st-hatena.com/image/square/74336d715975dfbfad67e0b68a2d64d1d51f754e/height=288;version=1;width=512/https%3A%2F%2Fwww.percona.com%2Fblog%2Fwp-content%2Fuploads%2F2018%2F03%2FClickHouse-and-ClickTail-e1522370944752.jpg)
All of Percona’s open-source software products, in one place, to download as much or as little as you need.
All of Percona’s open-source software products, in one place, to download as much or as little as you need.
All of Percona’s open-source software products, in one place, to download as much or as little as you need.
The other day a customer asked me to do capacity planning for their web server farm. I was looking at the CPU graph for one of the web servers that had Hyper-threading switched ON and thought to myself: “This must be quite a misleading graph – it shows 30% CPU usage. It can’t really be that this server can handle 3 times more work?” Or can it? I decided to do what we usually do in such case – I de
All of Percona’s open-source software products, in one place, to download as much or as little as you need.
In this blog post, I’ll provide some guidance on how to choose the MySQL innodb_log_file_size. Like many database management systems, MySQL uses logs to achieve data durability (when using the default InnoDB storage engine). This ensures that when a transaction is committed, data is not lost in the event of crash or power loss. MySQL’s InnoDB storage engine uses a fixed size (circular) Redo log sp
ProxySQL ArchitectureWhile most first think to install ProxySQL on a standalone node between the application and database, this has the potential to affect query performance due to the additional latency from network hops. To have minimal impact on performance (and avoid the additional network hop), many recommend installing ProxySQL on the application servers. The application then connects to Pro
Open source databases Learn how to set up Percona's open source solutions for your database needs. Pick your favorite technology to access our step-by-step guidance and documentation. Cloud-native databases Leverage the power of modern open source databases on the cloud with Percona solutions for PostgreSQL, MongoDB, and MySQL. Click to start your cloud-native databases journey with our documentat
This blog was originally published in February 2017 and was updated in September 2023. In this blog post, I provide an in-depth introduction to MySQL Replication, answering what it is, how it works, its benefits and challenges, as well as reviewing some of the MySQL replication concepts that are part of the MySQL environment (and Percona Server for MySQL specifically). I will finish by also clarif
This blog compares how PostgreSQL and MySQL handle millions of queries per second. Anastasia: Can open source databases cope with millions of queries per second? Many open source advocates would answer “yes.” However, assertions aren’t enough for well-grounded proof. That’s why in this blog post, we share the benchmark testing results from Alexander Korotkov (CEO of Development, Postgres Professio
All of Percona’s open-source software products, in one place, to download as much or as little as you need.
In this post, I’ll review Docker multi-host network performance. In a past post, I tested Docker network. The MySQL Server team provided their own results, which are in line with my observations. For this set of tests, I wanted to focus more on Docker networking using multiple hosts. Mostly because when we set up a high availability (HA) environment (using Percona XtraDB Cluster, for example) the
All of Percona’s open-source software products, in one place, to download as much or as little as you need.
All of Percona’s open-source software products, in one place, to download as much or as little as you need.
Recently my colleague (by Percona) Yves Trudeau and colleague (by industry) Marco Tusa published their materials on Amazon Aurora. Indeed, Amazon Aurora is a hot topic these days, and we have a stream of customer inquiries regarding this technology. I’ve decided to form my own opinion, and nothing is better than a personal, hands-on experience, which I am going to share. The materials I will refer
During the last couple of months I have been involved in an unusually high amount of performance audits for e-commerce applications running with Magento. And although the systems were quite different, they also had one thing in common: the MySQL query cache was very useful. That was counter-intuitive for me as I’ve always expected the query cache to be such a bottleneck that response time is bette
Previously I tested Tokutek’s Fractal Trees (TokuMX & TokuMXse) as MongoDB storage engines – today let’s look into the MySQL area. I am going to use modified LinkBench in a heavy IO-load. I compared InnoDB without compression, InnoDB with 8k compression, TokuDB with quicklz compression. Uncompressed datasize is 115GiB, and cachesize is 12GiB for InnoDB and 8GiB + 4GiB OS cache for TokuDB. Importan
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