Recently at Percona Live Amsterdam I gave a talk titled Databases in the Hosted Cloud (I’m told I got a 4/5 rating for this talk). It was before AWS re:Invent, so obviously some of the details in the talk have changed. For one, now there is also Amazon RDS for MariaDB. But there has also been other changes, i.e. HP’s Public Cloud (HP Helion Public Cloud) will sunset January 31 2016.
That’s a slide from my deck. I basically have to …
[Read more]Adding good content to Twitter can be a pain. I can’t do it during working hours, and I don’t have much time at night. But, the more content you have, the more followers you can gain, and the more your original tweets can be seen (hopefully). I have written several posts about using the latest Perl-Twitter API – Net::Twitter::Lite::WithAPIv1_1, so you might want to check these out as well.
– Use MySQL and Perl to automatically find, follow and unfollow twitter users
– Using Perl to retrieve direct messages from Twitter, insert messages into a MySQL database and then …
[Read more]Now that MySQL 5.7 has become GA it’s a good time to highlight how much performance has improved in replication since the 5.6 era. This blog post will focus on the performance of the multi-threaded slave applier (MTS), and about it’s scalability in particular.…
MySQL 5.7.9 has a new feature, that simplifies queries that deal with JSON data and makes more human-readable: inlined JSON path expressions. Now you can do following:
mysql> CREATE TABLE employees (data JSON);
Query OK, 0 rows affected (0,01 sec)
mysql> INSERT INTO employees VALUES ('{"id": 1, "name": "Jane"}');
Query OK, 1 row affected (0,00 sec)
mysql> INSERT INTO employees VALUES ('{"id": 2, "name": "Joe"}');
Query OK, 1 row affected (0,00 sec)
mysql> SELECT * FROM employees WHERE data->'$.id'= 2;
+--------------------------+
| data |
+--------------------------+
| {"id": 2, "name": "Joe"} |
+--------------------------+
1 row in set (0,01 sec)
Let’s take a closer look at the expression in the
WHERE clause.…
MySQL 5.7 has been recently declared Generally Available and in it there is a set of new replication features. Over the last 6 years MySQL replication has evolved at a tremendous pace. MySQL 5.6 brought us a lot of new replication features, many that were ground breaking and yes, sometimes controversial.…
Many of our users speak highly of our product ClusterControl, especially how easy it is to install the software package. Installing new software is one thing, but using it properly is another.
We all are impatient to test new software and would rather like to toy around in a new exciting application than to read documentation up front. That is a bit unfortunate as you may miss the most important features or find out the way of doing things yourself instead of reading how to do things the easy way.
This new blog series will cover all the basic operations of ClusterControl for MySQL, MongoDB & PostgreSQL with examples explaining how to do this, how to make most of your setup and provides a deep dive per subject to save you time.
These are the topics we'll cover in this series:
The MySQL Fabric team is pleased to announce that a new version
is now available on Labs. This labs release includes our latest
developments to give you a taste of what we have been working on.
In particular, it includes the following new features and
improvements:
I had an interesting task of collecting and displaying some runtime metrics during the benchmark. Since data was clearly divided between OS and processes, I opted for separate background jobs in which case no task will stall the other. However, this means I had to establish communication between main script code and jobs which is tricky in Powershell (see this bug for example). Immediately, I thought of using named pipes or files (as I do have small, ever changing set of data). Further investigation revealed 4 ways of accomplishing this:
An application always needs support of concurrent connections to
mysql servers and always requires high available system for a
loss less data environment.
The MySQL Router is a new building block for high availability
solutions. MySQL Router simplifies development of high
availability applications by intelligently routing queries to
MySQL Servers for increased performance, robustness, and uptime.
MySQL Router definitely helps in supporting HA and concurrent
connections to servers without any change in the application
level coding irrespective of the servers in a simple topology or
in a fabric distributed server.
In a practical application environment, the data is fetched from
the read-only servers where data is written to read-write
servers. So Router is pre-defined to support similar server
setup. Also it is required connect to the available/next
available server when there is failover and Provide proper logs
to the …
The MySQL Router is a new building block for high availability
solutions. MySQL Router simplifies development of high
availability applications by intelligently routing queries to
MySQL Servers for increased performance, robustness, and
uptime.
MySQL Router also connects seamlessly with MySQL Fabric
permitting Fabric to store and manage the high availability
groups for routing, making it simpler to manage groups of MySQL
Servers for redundancy and
continued operation.Also You do not need specific fabric aware
connectors to do so. You can use generic MySQL Connectors for
this purpose.
Please refer to
http://dev.mysql.com/doc/mysql-router/en/mysql-router-installation.html
to install MySQL Router.
Create a fabric setup using
https://dev.mysql.com/doc/mysql-utilities/1.4/en/fabric-setup.html
How to integrate Router with MySQL Fabric:
you can have one MySQL Fabric state-store …