MySQL 8 Resource Group – introduction and dynamic allocation
This blog post gives an introduction to resource groups in MySQL 8 and dynamical allocation to threads, as well as a related bug report.
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Monitoring Processes with Percona Monitoring and Management
A few months ago I wrote a blog post on How to Capture Per Process Metrics in PMM. Since that time, Nick Cabatoff has made a lot of improvements to Process Exporter and I’ve improved the Grafana...
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Custom Graphs to Monitor your MySQL, MariaDB, MongoDB and PostgreSQL Systems...
Graphs are important, as they are your window onto your monitored systems. ClusterControl comes with a predefined set of graphs for you to analyze, these are built on top of the metric sampling done...
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Configuring and Managing SSL On Your MySQL Server
In this blog post, we review some of the important aspects of configuring and managing SSL in MySQL hosting. These would include the default configuration, disabling SSL, and enabling and enforcing...
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[Solved] How to install MySQL Server on CentOS 7?
Recently, when I am working on setting up MySQL Enterprise Server, I found, there is too much information available over internet and it was very difficult for a newbie to get what is needed for...
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Percona XtraDB Cluster 5.6.41-28.28 Is Now Available
Percona announces the release of Percona XtraDB Cluster 5.6.41-28.28 (PXC) on September 18, 2018. Binaries are available from the downloads section or our software repositories. Percona XtraDB Cluster...
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Bloom filter and cuckoo filter
The multi-level cuckoo filter (MLCF) in SlimDB builds on the cuckoo filter (CF) so I read the cuckoo filter paper. The big deal about the cuckoo filter is that it supports delete and a bloom filter...
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MySQL: size of your tables – tricks and tips
Many of you already know how to retrieve the size of your dataset, schemas and tables in MySQL. To summarize, below are the different queries you can run: Dataset Size I the past I was using something...
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How to Monitor multiple MySQL instances running on the same machine -...
Requires ClusterControl 1.6 or later. Applies to MySQL based instances/clusters. On some occasions, you might want to run multiple instances of MySQL on a single machine. You might want to give...
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sysbench for MySQL 8.0
Alexey made this amazing tool that the majority of MySQL DBAs are using, but if you use sysbench provided with your GNU/Linux distribution or its repository on packagecloud.io you won’t be able to use...
View ArticleDurability debt
I define durability debt to be the amount of work that can be done to persist changes that have been applied to a database. Dirty pages must be written back for a b-tree. Compaction must be done for an...
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Production Secret Management at Airbnb
Our philosophy and approach to production secret management Keys are handed off during a check-in in ShanghaiAirbnb is a global community built on trust. The Security team helps to build trust by...
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ProxySQL 1.4.10 and Updated proxysql-admin Tool Now in the Percona Repository
ProxySQL 1.4.10, released by ProxySQL, is now available for download in the Percona Repository along with an updated version of Percona’s proxysql-admin tool. ProxySQL is a high-performance proxy,...
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Upgrading large NDB cluster from NDB 7.2/7.3/7.4 (MySQL server 5.5/5.6) to...
When the NDB version is upgraded it requires the underlying MySQL server as well is upgraded. Internal table storage format is different in MySQL 5.7 and for new tables created on MySQL 5.6....
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MySQL and Memory: a love story (part 1)
As you may know, sometimes MySQL can be memory-hungry. Of course having data in memory is always better than disk… RAM is still much faster than any SSD disk. This is the reason why we recommended to...
View ArticleHow to use procedures to increase security in MySQL
MySQL privilege system is small, almost all administrative tasks can be completed using a handful of privileges. If we exclude generic ones as ALL, SHOW DATABASES and USAGE, create and drop...
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Prometheus 2 Times Series Storage Performance Analyses
Prometheus 2 time series database (TSDB) is an amazing piece of engineering, offering a dramatic improvement compared to “v2” storage in Prometheus 1 in terms of ingest performance, query performance...
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Before You Go: The Ultimate Checklist Before You Jet Off For Your Travels
These days, travelling seems to be such a common thing that you get bombarded with offers of passport holders, special luggage, travel based stationary and more, with no real thought as to the...
View ArticleSQL Order of Operations – SQL Query Order of Execution
Knowing the bits and bytes of an SQL query’s order of operations can be very valuable, as it can ease the process of writing new queries, while also being very beneficial when trying to optimize an...
View ArticleHow to check and fix MySQL replication inconsistencies ?
There are several possibilities to end up with inconsistent MySQL replication, This could be accidental or intentional. In this blog I would like to discuss on how to identify the inconsistent slaves...
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