Ideas, releases, practical guides, and perspectives from the people building with MySQL.
Database replication is vital enterprise technology but is dominated by inflexible, high-cost incumbents, especially in the case of Oracle. This webinar-on-demand introduces VMware Continuent replication and shows how it solves database replication problems in environments from bare metal to clouds.
We introduce exciting new Oracle replication improvements that allow users to apply VMware
The newest member of the MySQL family, the MySQL Router, was released on labs.mysql.com just a few days ago. In the two previous posts, you could see what kind of features that are currently available as well as how to compile and install the MySQL Router.…
same problem…centos 7
/etc/raddb/mods-enabled/redis[10]: Failed to link to module ‘rlm_redis’: /usr/local/lib/rlm_redis.so: cannot open shared object file: No such file or directory
Next November I'll once again take the ferry to my neighbour city of Buenos Aires to enjoy two days of learning, networking, and presenting, at DataOps LA 2015, the first incarnation of what used to be the MySQL, NoSQL, Cloud Conference organized by BinLogic in Buenos Aires.
There’s a strong trend to automation across the cloud. That’s a great thing for startups because it reduces operational headaches & lets them focus on building products. Join 31,000 others and follow Sean Hull on twitter @hullsean. But as that trend begins to touch the database tier, all sorts of complications emerge. Let’s take a … Continue reading When hosting data on Amazon turns bloodsport →
TCP Loopback fast path
In Windows 8 and Windows server 2012, Microsoft introduced a new “TCP Loopback fast path” feature (see the Microsoft Technet article: Fast TCP Loopback Performance and Low Latency with Windows Server 2012 TCP Loopback Fast Path).…
Golang is awesome. My 1st Language back in 1994 was C. Then the
following year my Computer Science Dept. switched from C/Pascal
to C++. I even like C++ but I like C more mainly because of
nostalgia.
Enter Go. The Syntax for me is a mix between JSON, and C. I love
it. I've created 3 new servers all doing a ton of TPS. What I
would like to share with you is some GO code to that handels
websockets
If you are building a server using websockets, over secure TCP
your browser behaves slightly differently than a client side
application using a websocket library. Specifically when working
with wss (secure websockets) across domains.
Its up to the client to respect Origin, so a client implementing
a websocket doesn't have to set the Origin Header, but your
browser does. This is done on purpose and its a good thing. To
get websockets to work over secure sockets, let's make our
assumptions consistent and do …
A few days ago Percona benchmarked our agents’ performance overhead in two extreme deployment scenarios. We engaged Percona to do this (on a paid basis) because of their sterling reputation for independent, objective third-party evaluations.
Background
As you may know, I worked at Percona for nearly five years and participated in many of these paid evaluations myself. There is no one more highly qualified to evaluate a product’s performance than Vadim Tkachenko at Percona. I know because I worked closely with him to evaluate products including Clustrix and others.
Vadim and I corresponded and planned the evaluation over a series of many months, and Vadim ran and re-ran benchmarks until we agreed it met our mutual standards.
At this point Vadim wrote a blog post, which you can find linked above. Prior to …
[Read more]Today, our team is glad to announce the release of the new version of Devart's data generator tool – dbForge Data Generator for MySQL v1.5!
My job is almost completely reliant upon my ability to perform work in lab of virtual machines. Almost every action plan I write is tested locally. When I need to troubleshoot an issue for a client one of the most common first steps I’ll perform is attempting to recreate the issue in a virtual environment so I can work on it there without the risk of impacting client data.
I believe that having a place to test and grow your skills is an absolute necessity for anyone working in the IT field today regardless of your specialization, even if you’re an IT generalist. But every now and then I hear about individuals who have issues with their virtual machines or with the virtual environment provided by their employer, so I figured this was a good time to share my method of creating a virtual lab. More specifically, one that allows you to do virtual work on a commodity laptop, one that won’t break down if you lose connectivity, one that …
[Read more]