Implementation is everything

Image #1 for QA series - Check out more posts tagged as NginxThere was an interesting question in the Nginx mailing list regarding replacing Varnish with Nginx as a load balancer. Let me quote the question directly here…

The question:

We are using Varnish in front of 3 load balanced web servers running apache.  We had migrated from one hosting platform where we had 1 app server and 1 database server using Varnish (Drupal 6.x) and had no issues.  Now that we are running in a load balanced environment (3 load balanced apache web servers, a Varnish server, and 1 database server) we are seeing mulitple examples of cacheing issues. (Pages not displaying correctly… style issues, data input staying cached and used on another page, etc).

We think we can just replace the Varnish server and use a NGinx server.  I don’t want to necessarily remove all the apache servers, but we have to get this cacheing issue corrected….

any thoughts…?

Continue reading “Implementation is everything”

What Do You Do For A Day When Your Web Hosting Service Crashes?

Image for the post "what do you do when your web host crashes?"There were two major outages on many sites during the past few weeks.

  1. Amazon AWS EBS degradation
  2. Outage due to Hurricane Sandy

Both these incidents affected many sites hosted in US East. Specifically, there were multiple sites that went offline during the recent Amazon AWS EBS degradation (nice alternative for downtime). Most sites waited helplessly until Amazon fixed it or waited until the after-effects of Sandy to go off. Others did the smartest thing. Moving the entire site to the US West coast. Continue reading “What Do You Do For A Day When Your Web Hosting Service Crashes?”

MySQL Server Crashed – My Site was still online!

MySQL logoYou don’t hear this often… MySQL server crashed and the sites hosted in that server went offline for hours together. But, when a similar thing happened to my VPS, it wasn’t the case. My site was still online, while I was troubleshooting the issue with MySQL server. Ultimately, I could not figure out the issue and I had to purge the entire MySQL installation. However, I was still cool during the entire process. You may ask how. Here is what happened and how you can prevent the same for your own VPS too… Continue reading “MySQL Server Crashed – My Site was still online!”

Varnish for the masses – Gandi.net Simple Hosting Review

Gandi.net Simple HostingLast month, Gandi.net sent a tweet providing free hosting for a month on their simple hosting package. As I already purchased a domain from them and was already looking for a host, I immediately replied and received the promo code within minutes. I’ve been using their service for about 20 days now. So, here is a quick review on how it went on so far, how it fares comparing to other hosting providers, its advantages over others and its unique disadvantages! Continue reading “Varnish for the masses – Gandi.net Simple Hosting Review”