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Displaying posts with tag: router (reset)
Deploy MySQL InnoDB Cluster in OCI with Terraform

As you know, Oracle Cloud Infrastructure (aka OCI) becomes more and more popular. You can find OCI data centers almost everywhere and the price is very attractive.

Something very interesting is the possibility to have different availability domains but also different fault-domains in the same availability one !

Oracle provides a lot of modules to deploy your architecture on OCI using Terraform. Those are called oracle-quickstart repos. You can find them on Github.

There is an official Reference Architecture for MySQL InnoDB Cluster in OCI that I encourage you to read before deploying your MySQL HA solution …

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The all new MySQL InnoDB ReplicaSet

Following MySQL InnoDB Cluster as our first, fully integrated MySQL High Availability solution based on Group Replication, MySQL Shell 8.0.19 includes MySQL InnoDB ReplicaSet which delivers another complete solution, this time based on MySQL Replication.

The basic idea for InnoDB ReplicaSet is to do the same for classic MySQL Replication as InnoDB Cluster did for Group Replication.…

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preFOSDEM 2020 MySQL Days: the schedule

The schedule of the preFOSDEM Day is now available !

We had a lot of proposals to deal with. Also this is a MySQL event where we, the MySQL Team has the possibility to show to you, our Community, all what we have working on to improve MySQL but also new stuff. We also invite some of our friends from the MySQL Community to talk about their experience.

I think we did a good selection and propose you new content. We are extremely happy to have Saverio Miroddi from TicketSolve talking about MySQL 8.0, Uber talking about InnoDB Cluster, and Facebook about Binlog.

As you can see, we will have 2 rooms, where one will be dedicated mostly to SQL and Optimizer topics but also tutorials.

You can also see that this year we also want to put some spot lights to MySQL NDB Cluster. You will see what is it, how is it used and what’s new. We will also have 2 community speakers sharing their MySQL NDB knowledge: Giuseppe Maxia, …

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Setup 2 MySQL InnoDB Clusters on 2 DCs and link them for DR

This article is an update of a previous post explaining how to setup a second cluster on a second data center to be used as disaster recovery (or to run some off site queries, like long reports, etc..).

This new article covers also the CLONE plugin. Before you ask, CLONE plugin and Replication Channel Based Filters are only available in MySQL 8.0 ! It’s time to upgrade, MySQL 8 is Great !

Also, for DR only, a single MySQL instance acting as asynchronous replica is enough. But if for any reason you want to also have a HA cluster in the second data …

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How to integrate ProxySQL in MySQL InnoDB Cluster

MySQL InnoDB Cluster is the most easy and integrated High Availability solution for MySQL.

The solution is composed of:

  • MySQL Server
  • MySQL Group Replication Plugin
  • MySQL Clone Plugin
  • MySQL Router
  • MySQL Shell

All those components are developed and tested together to provide the easiest and best experience to the MySQL users.

As the MySQL Router is a TCP Level 4 router (like HA Proxy), some users requiring a more “intelligent” proxy having other extra features like caching, read/write splitting in relation with the user or SQL, firewall, … may be interested in using ProxySQL… and this is a good choice !

ProxySQL / MySQL Router in OSI Model

However, even is ProxySQL supports MysQL Group Replication, for …

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Migrate from a single MySQL Instance to MySQL InnoDB Cluster using CLONE plugin

When somebody wants to migrate from a single MySQL instance to a full HA solution using MySQL InnoDB Cluster, the best solution to reduce the downtime is to use asynchronous replication and switch database only once at a certain point in time when everything is ready. This is almost what I explained already in this post.

The most difficult part was related to the provisioning of the existing data to the new cluster members. A backup (physical or logical) was required. It should have been restored on every nodes and we had to be sure to not mess up with the GTIDs.

This is not more the case since MySQL 8.0.17 ! Now we can use the CLONE plugin to start the cluster provisioning too.

The current situation

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MySQL Router 8.0.17’s REST API & MySQL Shell Extensions

You have seen in this previous post, that since 8.0.17, it’s now possible to query the MySQL Router using its REST API.

Additionally, we also saw in this post, that since 8.0.17, we are now able to write extensions to MySQL Shell using the Extension Framework.

Let’s combine both and see how we can integrate the MySQL Router’s REST API in the Shell.

I’ve created an extension in ext.router that creates a MySQL Router Object.

The new extension, as a method to create the object:

This is an example that illustrates how to create a MySQL Router Object, as you can see you can pass the password directly as parameter but it’s not recommended in interactive mode. It’s …

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MySQL Router 8.0.17 and the REST API

Since MySQL 8.0.16, the Router as the possibility to launch an internal webserver (see Jan’s blog post).

Even if this webserver could serve static files, it was the first piece of a much more interesting solution that is now available since 8.0.17.

It’s possible now to query the MySQL Router via its REST API and get a lot of useful information.

Setup

Let’s first configure our MySQL Router to take advantages of this new feature. In this example, I will add the following lines to /etc/mysqlrouter/mysqlrouter.conf that I created using the --bootsrapcommand line argument:

[http_server]
port=8080

[rest_api]

[rest_router]
require_realm=somerealm

[rest_routing]
require_realm=somerealm …
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MySQL Router 8.0.16: What’s new

MySQL Router 8.0.16 Key features

  • log-rotation via SIGHUP
  • HTTP server plugin
  • flexible support for single/multi-PRIMARY Group Replication

Logrotation via SIGHUP

Sending a SIGHUP signal to the router process will now close and reopen the logfile.

It allows the integration with the logrotate to rotate and compress the Router’s logfiles.…

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MySQL InnoDB Cluster – What’s new in the 8.0.14 (GA) release

The MySQL Development Team is very happy to announce a new 8.0 Maintenance Release of InnoDB Cluster – 8.0.14!

In addition to bug fixes, 8.0.14 brings exciting new features!

MySQL Shell

For this release, we have focused on extending the AdminAPI with several highly desired features.…

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