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Displaying posts with tag: database (reset)
Create a MySQL Database and User through cPanel

There are different ways to create a MySQL database and user. In one of our previous blog articles about MySQL database administration, we described how to create a new MySQL database and user through the command line which is pretty easy. If you have a Linux VPS with cPanel you can create a new MySQL database through the control panel with just few clicks of your mouse.cPanel is one of the most popular and widely used control panels. In this tutorial we will guide you through the process of creating a MySQL database and user, and assigning the user to […]

Take Percona’s One-Click Database Security Downtime Poll

Take Percona’s database security downtime poll.

As Peter Zaitsev mentioned recently in his blog post on database support, the data breach costs can hit both your business reputation and your bottom line. Costs vary depending on the company size and market, but recent studies estimate direct costs ranging in average from $1.6M to 7.01M. Everyone agrees leaving rising security risks and costs unchecked is a recipe for disaster.

Reducing security-based outages doesn’t have a simple answer, but can be a combination of internal and external monitoring, support contracts, enhanced security systems, and a better understanding of …

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Netflix Billing Migration to AWS - Part III

In the billing migration blogpost published a few weeks ago, we explained the overall approach employed in migrating our billing system to the cloud. In this post, the database migration portion will be covered in detail. We hope that our experiences will help you as you undertake your own migrations.

Have you ever wondered about the elements that need to come together and align to get a complicated database migration right? You might ask, “What makes it complicated?”

Think of any challenge in database migration and pretty much all of them were there in this migration:

  • Different hardware between source and target
  • OS flavours
  • Migration across heterogeneous databases
  • Multiple datacenters - Netflix data center (DC) and AWS cloud
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Why Uber Engineering Switched from Postgres to MySQL

Uber Engineering explains the technical reasoning behind its switch in database technologies, from Postgres to MySQL.

The post Why Uber Engineering Switched from Postgres to MySQL appeared first on Uber Engineering Blog.

The Uber Engineering Tech Stack, Part II: The Edge and Beyond

The end of a two-part series on the tech stack that Uber Engineering uses to make transportation as reliable as running water, everywhere, for everyone, as of spring 2016.

The post The Uber Engineering Tech Stack, Part II: The Edge and Beyond appeared first on Uber Engineering Blog.

MySQL Password Security Changes for PHP Developers

MySQL 5.7 introduced many new facets to password security. The first thing most notice is that you are assigned a random root password at installation time. You then have to search the log file for this random password, use it to login, and then change it. For the examples on the post I am using a fresh install of 5.7.13 on Oracle Linux 7.1 and was provided with the easy to remember password of nLvQRk7wq-NY which to me looked like I forgot to hit escape when trying to get out of vim. A quick ALTER USER to change the password and you are on your way. Defaults Password Lifetime and Complexity5.7.13 now has the default password lifetime set to 0 or 'never expire'. My fresh install shows that the value of mysql.user.password_lifetime is set to NULL which …

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Dynomite-manager: Managing Dynomite Clusters

Dynomite has been adopted widely inside Netflix due to its high performance and low latency attributes. In our recent blog, we showcased the performance of Dynomite with Redis as the underlying data storage engine. At this point (Q2 2016), there are almost 50 clusters with more than 1000 nodes, centrally managed by the Cloud Database Engineering (CDE) team. CDE team has a wide experience with other data stores, such as Cassandra, ElasticSearch and Amazon RDS.Dynomite is used at Netflix both as a:

  1. Cache, …
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Custom commands during MySQL Sandbox installation

MySQL Sandbox 3.1.07 adds several options to execute shell or SQL commands during the sandbox installation.

Figure 1: MySQL Sandbox states and where you can run the hooks

There are 3 options to run shell commands, 2 to run SQL queries, and 2 to run SQL files.

## Shell commands
--pre_start_exec=command : runs 'command' after the installation, before the server starts
--pre_grants_exec=command : runs 'command' after the server starts, before loading the grants.
--post_grants_exec=command : runs 'command' after the loading the grants.

## SQL statements
--pre_grants_sql=query : runs 'query' before loading the grants.
--pre_grants_file=filename : runs SQL file 'filename' before loading the grants.
--post_grants_sql=query : runs 'query' …
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Docker for Mac beta and MySQL - First impressions

Using Docker for development is a great way of ensuring that what you develop will be the same that you deploy in production. This is true for almost everything. If you develop on Linux, the above statement holds. If you develop on a different operating system (OSX or Windows) there are several restrictions.

I showed one of those issues in a recent article (MySQL and Docker on a Mac: networking oddity.) When you want to export a port from a service running in the container, the exported port is not available in your mac, but in the virtual machine that runs Docker services. This happens with any application that listens to a port.

The second limitation I found affects only MySQL, and it is related to using volumes. The proper way of achieving data persistence with …

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Taking the MySQL document store for a spin

This is not a comprehensive review, nor an user guide. It's a step-by-step account of my initial impressions while trying the new MySQL XProtocol and the document store capabilities. In fact, I am barely scratching the surface here: more articles will come as time allows.

MySQL 5.7 has been GA for several months, as it was released in October 2015. Among the many features and improvements, I was surprised to see the MySQL team emphasizing the JSON data type. While it is an interesting feature per se, I failed to see the reason why so many articles and conference talks were focused around this single feature. Everything became clear when, with the release of MySQL 5.7.12, the MySQL team announced a new release model.


In …

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