In my previous post I showed how to integrate Varnish Cache with a PHP application. The example can solve various simple problems but it might not be enough for a complex software. A good example is a multilingual application. One URL can have multiple caches. You might also need to know more about a user (is he logged in? has he received a notification? etc) to make some additional caching decisions.
Continue reading “Reading PHP session from Varnish Cache” →
Varnish Cache is a web application accelerator. It stands in front of a web server and can cache any type of data. It stores data in memory and can speed up your application by a factor of 300-1000x depending on your architecture.
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Have you ever though how to extend the core of PHP? What does it take to create a new keyword or even design a whole new syntax? If you have some basic knowledge about C you shouldn’t have any problem with making small changes. Yes, I know it might be little bit pointless but it doesn’t matter because It’s fun.
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Where do you keep backups? I guess that depends on what do you backup. You might have a very clever answer for a business critical data but what about less important content? The best example would be a private blog. It will hurt if you lose your data but the odds are you’re not willing to pay for any reliable storage. If you care enough to backup it’s going to be to another server (if you own one), your own laptop or external hard drive. S3 is gaining popularity but not everybody have and want to open account on Amazon. On the other hand there is one reliable storage, which is 100% free and almost everybody have access to it. Yes, I’m talking about Google Drive.
Continue reading “Automated backups to Google Drive with PHP API” →
“Cloud” become very ambiguous term and it can mean virtually anything those days. If you are not familiar with Solr Cloud think about it as one logical service hosted on multiple servers. Distributed architecture helps with scaling, fault tolerance, distributed indexing and generally speaking improves search capabilities.
All of that is very exciting and I’m highly impressed how the service is designed but… it’s relatively new product. If you play with the tutorial (which by the way is great) running multiple services on the same host does’t cause problems. Setting the service for production environment and using it is a different story. There are still some unresolved issues which can confuse for hours if not days.
Continue reading “Painless guide to Solr Cloud configuration” →
Time is money. This somewhat shallow and overused saying fits perfectly well into any on-line business. Users are impatient and every millisecond brings them closer to leaving your website.
If you’ve ever been trying to squeeze more out of hardware you must have come across Nginx (engine x). Nginx usually appears in context of PHP-FPM (FastCGI Process Manager) and APC (Alternative PHP Cache). This setup is often pitched to be the ultimate combo for a web server but what that really means? How much faster a PHP application is going to be on a different web server? I had to check it and the answer as often is – that depends.
Continue reading “Apache2 vs Nginx for PHP application” →
Everybody heard about Amazon Cloud. It has been around for a good few years. Despite its popularity not everybody had a chance to try it. Amazon tries it best to get more people on board by offering “Micro” versions of their web service for free. If you are into technology or just want a quality hosting for your website, it’s worth getting familiar with AWS. After all.. can you beat free?
Continue reading “Beginners guide to Amazon Cloud” →