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Displaying posts with tag: Docker (reset)
Fun with Bugs #79 - On MySQL Bug Reports I am Subscribed to, Part XV

More than 3 weeks passed since my previous review of public MySQL bug reports I am subscribed to, so it's time to present some of the bugs I've considered interesting in January, 2019.

As usual, I'll review them starting from the oldest and try to summarize my feelings about these bugs at the end of this post. Here they are:

  • Bug #93806 - "Document error about ON DUPLICATE KEY UPDATE". Years pass, but fine MySQL manual still does not explain some cases of InnoDB locking properly. Xiaobin Lin found yet another case that it does not explain properly. Or, maybe, the manual is correct and the problem in …
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Extending WordPress Dockerfile to use MySQL 5.7 (or 8.0)

Oracle’s website shows End of life for MySQL 5.5 as of Jan 20th of 2019, so hurry up and upgrade!

I am working building some demos for Cloud SQL and one of the requirements I had was to run MySQL 5.7 and WordPress as my sample application. The demo consisted on migrating from a single VM environment with WordPress and MySQL running alongside. The narrative: the site got popular and the database became the bottle neck because of all the shared resources between them and the application. The proposed solution? A minimal downtime migration to Cloud SQL, moving the data layer to a dedicated server.

I am going to be doing this demo a lot of times, so I needed some way to automate it. I thought of doing through Docker. I am not Docker proficient, and to begin with I asked …

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Multi-arch Docker Images for MySQL Server

Since the new 8.0.13 release we publish docker images for a new architecture: aarch64, as part of our normal release process. This means that the mysql/mysql-server docker image will work on both amd64 and aarch64 architectures. The newest images are as usually available on dockerhub. On amd64 machines: [user@amd64host]$ docker pull mysql/mysql-server:8.0.13 [user@aarch64host]$ docker run […]

Uber’s Big Data Platform: 100+ Petabytes with Minute Latency

Uber is committed to delivering safer and more reliable transportation across our global markets. To accomplish this, Uber relies heavily on making data-driven decisions at every level, from forecasting rider demand during high traffic events to identifying and addressing bottlenecks

The post Uber’s Big Data Platform: 100+ Petabytes with Minute Latency appeared first on Uber Engineering Blog.

Container Testing for MySQL Server

Traditionally infrastructure management is a manual task, with sysadmins managing rather static servers. The automation capabilities of modern cloud platforms have changed this way of working: Infrastructure is often described “as code,” e.g. in a git repository, and changes are made by infrastructure management systems automatically. As a result infrastructure is much less static and turnaround […]

How to Change Settings for PMM Deployed via Docker

When deployed through Docker Percona Monitoring and Management (PMM) uses environment variables for its configuration

For example, if you want to adjust metrics resolution you can pass

-e METRICS_RESOLUTION=Ns

  as  an option to the

docker run

  command:

docker run -d \
  -p 80:80 \
  --volumes-from pmm-data \
  --name pmm-server \
  --restart always \
  -e METRICS_RESOLUTION=2s \
  percona/pmm-server:latest

You would think if you want to change the setting for existing installation you can just stop the container with

docker stop

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Docker on Fedora 27

This walks you through the steps to install the Community Edition of Docker on Fedora 27. If you’ve been living under a rock for a few years, Docker is an open source container virtualization software.

Docker or Docker Community Edition is a necessary step if you want to install something like Microsoft’s SQL Server on Fedora because only these are supported platforms:

  • Red Hat Enterprise Linux 7.3 or 7.4
  • SUSE Linux Enterprise Server V12 SP2
  • Ubuntu 16.04
  • Docker Engine 1.8+

The first step requires you to add the docker-ce repo to your instance with he curl utility, which should already be installed in most cases. You can check whether the curl utility is available with the which command, like: …

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Interesting happenstance when installing Ansible dependencies in a MySQL Docker container

I’ve been posting quite a bit about Docker as I’ve been working with it a lot as of late. I thought I would share something interesting I discovered a couple weeks ago while working on setting up a Docker container-based lab environment for training purposes here at Pythian, specifically when attempting to install the MySQL-python package inside the container.

I know what you’re thinking: why is he trying to install a package in a Docker container? Doesn’t that go against the “Docker run and forget about it” philosophy? Sure, but in this case, I’m looking to add orchestration via ansible, which I don’t think is completely out of the question in order to coordinate your Docker containers for something like replication. This requires using the …

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Debugging MySQL on Docker


In a recent post, my colleague and teammate Peter Sylvester explained how we could customize MySQL’s configuration when running it as a Docker container.

Today I want to show you how to debug a Dockerized MySQL process. Let me start by showing you how I am starting my test container:

[fipar@coltrane ~]$ sudo docker run --memory-swappiness=1 -p 3308:3306 --name=mysql1 -e MYSQL_ROOT_PASSWORD=password -d mysql/mysql-server:5.7
Unable to find image 'mysql/mysql-server:5.7' locally
Trying to pull repository docker.io/mysql/mysql-server ...
5.7: Pulling from docker.io/mysql/mysql-server
Digest: sha256:eb3aa08c047efcb3e6bfcc3a28b80a2ec8c67b4315712b26679b0b22320f0b4a
Status: Downloaded newer image for docker.io/mysql/mysql-server:5.7 …
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Deploying PMM on DigitalOcean

It’s very easy to install Percona Monitoring and Management (PMM) on DigitalOcean. If you’ve never used DigitalOcean before, you will find that it is user-friendly and not very expensive. For $5/month you can easily host your PMM on it, letting you monitor your simple infrastructure or try out PMM before implementing it to monitor your production environments.

Let’s prepare the DigitalOcean instance

Log in to DigitalOcean (DO) control panel and click “Create Droplet.”

Thanks to DO you can skip the boring OS setup and save time by using the Docker “One click app” in DO and the Docker image from PMM.

Note: After clicking on “Docker…” choose an instance size that accommodates your budget – PMM can run on as little as the 1GB 1vCPU instance!

Note: Scroll again!

Next step – select a nearby region …

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