In this post we will see the unique features of MySQL Cluster i.e. Self healing and no single point of failure.

MySQL Cluster No Single Point Of Failure:

As we know that in MySQL Cluster, data nodes are logically grouped into nodegroups. All data nodes in a nodegroup contain the same data, kept in sync at all times. Different nodegroups contain different data. So in a single nodegroup, MySQL Cluster can sustain multiple node shutdown at the same time but at least one node must live in that nodegroup. Lets demonstrate this feature with a 4 replicas cluster where each nodegroup have 4 data nodes.

Lets create a MySQL Cluster with below environment.

• MySQL Cluster 8.0.22 version
• 2 Management servers
• 8 Data nodes servers
• 2 Mysqld servers
• 4 API nodes
• OS: Ubuntu 20.04 LTS
• NoOfReplicas = 4
  

…

In this post, we will see how easily we can install MySQL Cluster on different physical hosts. One can install MySQL Cluster on a single host too. If you are wondering what MySQL Cluster is then please look into my previous post.
MySQL Cluster Installation:

Lets create a MySQL Cluster with the following environment:

• MySQL Cluster 8.0.22 version

• 2 Management servers

• 4 Data nodes servers

• 2 Mysqld servers

• 4 API nodes

• OS: Ubuntu 20.04 LTS
  
  
  

Hostname and IP address of all the nodes in the MySQL Cluster:
Management Node1 (mgmt1):        Hostname: …

In one of our previous articles - Setting up Replication with various methods for MySQL 8 - we reviewed how to create a replica with multiple tools.
Now, it is time to perform the same action but with MySQL Shell.

The post MySQL SHELL – The new era first appeared on dasini.net - Diary of a MySQL experts.

Mysqldump is a client utility that is used to perform logical backups of the MySQL database. This popular migration tool is useful for various use cases of MySQL such as: Backup and restore of databases. Migrating data from one server to another. Migrating data across different managed MySQL service providers. Migrating data between different versions […]

MySQL Shell is an advanced client tool that has many features and is easy to use. The recent MySQL release (MySQL 8.0.22) has the utility “exportTable()”, which supports exporting the data into a file from a table using MySQL shell. The exported data file can be imported using the utility “importTable()”, which was released in MySQL 8.0.17.

With “exportTable()”, you can export the data into a local server or in any S3-compliant object storage provider. In this blog, I am going to explain how those exportTable() & importTable() utilities are working in local servers and I also did some tests with MySQL 5.7 and MySQL 5.6.

Overview of exportTable() & importTable() exportTable():

• Introduced in MySQL 8.0.22. 
• The utility is used to export the data from the MySQL table into a data file. 
• It can be used to export the table to a local server or any S3-compliant object storage …

Introduction In this article, we are going to see how we can enable the MySQL JDBC Driver Statement Caching mechanism, which, unfortunately, is not enabled by default. No matter what data access framework you are using, you still need to configure the JDBC Driver if you want to get the most out of the MySQL database engine. MySQL JDBC client-side PreparedStatement As I explained in this article, by default, the MySQL JDBC Driver emulates prepared statements. So, no matter if you are executing a plain Statement or a PreparedStatement, the SQL statement... Read More

The post MySQL JDBC Statement Caching appeared first on Vlad Mihalcea.

If you plan to deploy a Drupal site to OCI using MySQL Database Service, there is a very easy way to perform that deployment: using OCI’s Resource Manager !

As you know, security is something very important for Oracle in OCI, therefor, exposing the database on the Internet is not allowed.

Even if you are not using OCI, I really recommend you to follow that principle and never expose your database to Internet !

I already cover this in many previous posts. But I also understand that for people not being a sysadmin, this can be complicated the first time.

That’s why, all this can be automated using a stack to deploy in Resource Manager.

The first thing to do when you have your OCI account, it’s to download the stack from GitHub: https://github.com/lefred/oci-drupal-mds

Then in OCI’s dashboard, just …

In the previous blog we provided insights on how the MySQL database has been enhanced to integrate with a native high performance analytics engine – HeatWave: https://blogs.oracle.com/mysql/breakthrough-enhancements-in-mysql-database-service-with-analytics-engine

HeatWave is a new, massively parallel in-memory query engine developed by Oracle Labs designed for accelerating analytic workloads. HeatWave provides 100x-1000x acceleration over MySQL and MySQL compatible databases like Aurora. 

There are four key architecture choices which provide compelling performance with HeatWave:

1. An in-memory hybrid columnar format which is conducive to vector processing.
2. A massively parallel architecture which is enabled by a massively partitioned architecture.
3. State of …

Role of Venture Capital Companies in building Database Systems Companies by Anandamoy Roychowdhary

Anandamoy Roychowdhary (a.k.a Roy) talked about how Venture Capital companies like Sequoia Capital can help you in building successfully Database Systems companies both strategically and technically. In this talk, Roy shared the most common metrics followed by Sequoia Capital to measure business from seed stage to the growth capital phase with more insights to how open source projects get evolved to wider adoption, community development and institutionalization of the business.

⊗ Talk from Roy on how venture capital companies can help you to build the Database Systems startups / business for scale

The post …

The Vitess team had a successful presence at Kubecon + CloudNativeCon North America 2020. This year's event was in a virtual format. It ran from Nov 17-20. We had 2 talks, a project booth and 3 office hours sessions. In addition, we had mentions in 2 major keynote talks. Day 1 # Day 1 was a non-keynote day. It opened relatively quietly for us. We had 25+ attendees at our office hours session hosted by maintainers Alkin Tezuysal, Deepthi Sigireddi and Derek Perkins.