Tag: MySQL

How to solve SELinux and MySQL log rotation issue

Disable SELinux? Think again! SELinux is always a complicated topic. If you search this on the web, most people will advise just disabling it, but that may not be acceptable from a security point of view in your organization. In…

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Addressing common challenges when scaling out MySQL horizontally

When we explore strategies to scale our MySQL-based database layer, we realize that there are many different options. As opposed to proprietary solutions, open-source products nourish themselves from their communities and novel architectures or enhanced versions are generated, often incorporating…

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How to Test MySQL Server Hostname with ProxySQL Multiplexing

Overview While working on a MySQL Galera cluster with ProxySQL, I was in the process of testing traffic going to the MySQL nodes by using the @@hostname command to ensure which MySQL host behind the proxy the query ran on….

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How to fix error when MySQL client fails to load SQL file with Blob data

In one of my latest database restore jobs, I was helping a MySQL client with issues related to mysqlbinlog and I wanted to share it here. In case you didn’t know, MySQL is a simple SQL shell with input line…

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How to Autoscale ProxySQL in the cloud

ProxySQL is a great tool. It’s one of the most recommended technologies in our Open Source Database practice. Many of our clients are running it or are migrating towards it, but we’ve seen that it is pretty CPU-intensive. We’ve also…

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Exposing MyRocks Internals Via System Variables: Part 7, Use Case Considerations

(In the previous post, Part 6, we covered Replication.) In this final blog post, we conclude our series of exploring MyRocks by taking a look at use case considerations. After all, having knowledge of how an engine works is really…

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Gaming company benefits from increased responsiveness with help from Pythian’s Google BigQuery experts

When Skillz, a leading mobile eSports platform connecting 2.6 billion gamers across the globe, sought Pythian’s help with reducing storage costs, they learned they could not only reduce costs but also gain a more responsive application while providing an improved…

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Exposing MyRocks internals Via system variables: Part 6, Replication

(In the previous post, Part 5, we covered Data Reads.) In this blog post, we continue our series of exploring MyRocks mechanics by looking at the configurable server variables and column family options. In our last post, I explained at…

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How to restore MySQL data folder using persistent disk snapshots (GCP)

There are already many tools for MySQL to perform backups and consistent restores, but this time I’d like to elaborate on how to take advantage of the kindness the cloud, which gives us Persistent Disk Snapshots (PSD) to restore our…

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Exposing MyRocks internals via system variables: Part 5, Data Reads

(In the previous post, Part 4, we covered Compression and Bloom Filters) In this blog post, we continue on our series of exploring MyRocks mechanics by looking at the configurable server variables and column family options. In our last post,…

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