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Displaying posts with tag: Infrastructure (reset)
Cloudflare, now offering to be your Single Point of Failure

There have been many articles about the downtime issue with Cloudflare last week, so I won’t get into the technical details of that. However, there’s the fine print to remember. Consider this a subtle reminder that core Internet infrastructure services like Cloudflare’s DNS-based “Always Online” caching and packet inspection security services do not come with Service Level Agreements even at the “Pro” account level. Even with a Pro account you are paying for a service with no uptime guarantee and you must only hope that it resolves your sites the majority of the time. This is fine, this is what the contract says: no SLA unless you pay for the Business account. An odd naming convention given that most Professionals are using their websites for business and would want the SLA, but I digress.

So, the SLA is not really the issue if you look at the architectural alternatives to building an architecture that desires availability when …

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Building a MySQL Private Cloud: Step 1

Building clusters is usually a fun time. Here’s one of my setups at the Equinix LAX1 facility that is being used for VPN services, OpenVZ clustering, and general RADIUS and MySQL clustering integration. Once the clustering design is finalized, it’s still in flux state while I try out different setups, I’ll post some physical+logical architecture diagrams to show “How to Build a Fault Tolerant Infrastructure for Virtualized MySQL NDB Cluster + Python-based VPN systems.” Stay tuned for more.

On SSDs - Lifespans, Health Measurement and RAID

Solid State Drive (SSD) have made it big and have made their way not only in desktop computing but also in mission-critical servers. SSDs have proved to be a break-through in IO performance and leave HDD far far behind in terms of Random IO performance. Random IO is what most of the database administrators would be concerned about as that is 90% of the IO pattern visible on database servers like MySQL. I have found Intel 520-series and Intel 910-series to be quite popular and they do give very good numbers in terms of Random IOPS. However, its not just performance that you should be concerned about, failure predictions and health gauges are also very important, as loss of data is a big NO-NO. There is a great deal of misconception about the endurance level of SSD, as its mostly compared to rotating disks even when measuring endurance levels, however, there is a big difference in how both SSD and HDD work, and that has a direct impact on the endurance …

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Got open source cloud storage? Red Hat buys Gluster

Red Hat’s $136m acquisition of open source storage vendor Gluster marks Red Hat’s biggest buy since JBoss and starts the fourth quarter with a very intersting deal. The acquisition is definitely good for Red Hat since it bolsters its Cloud Forms IaaS and OpenShift PaaS technology and strategy with storage, which is often the starting point for enterprise and service provider cloud computing deployments. The acquisition also gives Red Hat another weapon in its fight against VMware, Microsoft and others, including OpenStack, of which Gluster is a member (more on that further down). The deal is also good for Gluster given the sizeable price Red Hat is paying for the provider of open source, software-based, scale-out storage for unstructured data and also as validation of both open source and software in today’s IT and cloud computing storage.

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PuppetConf and the state of devops

It’s been some time now that we’ve been talking about devops, the pushing together of application development and application deployment via IT operations, in the enterprise. To keep up to speed on the trend, 451 CAOS attended PuppetConf, a conference for the Puppet Labs community of IT administrators, developers and industry leaders around the open source Puppet server configuration and automation software. One thing that seems clear, given the talk about agile development and operations, cloud computing, business and culture, our definition of devops continues to be accurate.

Another consistent part of devops that also emerged at PuppetConf last week was the way it tends to introduce additional stakeholders beyond software developers and IT …

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How To Send One Billion Email Marketing Messages Per Month

One... *billion* emails!

One *Billion* Emails

In email marketing there are senders of all shapes and sizes, from small businesses using self-serve ESPs to the largest web properties self-sending to massive user bases. While only a few senders will reach or exceed volumes of one billion messages per month, the tools and practices needed to achieve such a volume level are applicable to all senders who want to succeed in email marketing.

Who Am I?

My name is Mike Hillyer (click here for bio and social links). I manage a team of Sales Engineers for Message Systems, a leading provider of digital messaging solutions for both senders and receivers. In my work over the last several years I have helped a number of …

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Webinar sécurité pour applications Web: conclusion

Merci d'avoir assisté au webinar sur la sécurité  pour les applications Web, et merci pour vos questions. Cette présentation était réservée aux membres du programme Sun Startup Essentials. Comme promis, voici une liste de liens utiles qui viennent compléter les sujets abordés pendant la présentations :

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MySQL University: Gearman for MySQL

This Thursday (November 12th, 14:00 UTC), Giuseppe Maxia of the MySQL Community Team will present Gearman for MySQL. Gearman is a client/server infrastructure for generic tasks, usable on distributed servers, with little worry about the details. No matter what language you speak, Gearman can meet your needs in C, PHP, Perl, Ruby, shell scripting, and several more. Gearman can also work in conjunction with MySQL, either using UDFs, or simply through its basic architecture. Giuseppe's talk will show examples of how to use Gearman for remote installation and how to call a complicate data warehousing function written in Perl from any other language, with no knowledge of Perl at all.

For MySQL University sessions, point your browser …

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MySQL University: Gearman for MySQL

This Thursday (November 12th, 14:00 UTC), Giuseppe Maxia of the MySQL Community Team will present Gearman for MySQL. Gearman is a client/server infrastructure for generic tasks, usable on distributed servers, with little worry about the details. No matter what language you speak, Gearman can meet your needs in C, PHP, Perl, Ruby, shell scripting, and several more. Gearman can also work in conjunction with MySQL, either using UDFs, or simply through its basic architecture. Giuseppe's talk will show examples of how to use Gearman for remote installation and how to call a complicate data warehousing function written in Perl from any other language, with no knowledge of Perl at all.

For MySQL University sessions, point your browser …

[Read more]
MySQL University: Gearman for MySQL

This Thursday (November 12th, 14:00 UTC), Giuseppe Maxia of the MySQL Community Team will present Gearman for MySQL. Gearman is a client/server infrastructure for generic tasks, usable on distributed servers, with little worry about the details. No matter what language you speak, Gearman can meet your needs in C, PHP, Perl, Ruby, shell scripting, and several more. Gearman can also work in conjunction with MySQL, either using UDFs, or simply through its basic architecture. Giuseppe's talk will show examples of how to use Gearman for remote installation and how to call a complicate data warehousing function written in Perl from any other language, with no knowledge of Perl at all.

For MySQL University sessions, point your browser …

[Read more]
Showing entries 11 to 20 of 41
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