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Surge 2010 scalability conference in Baltimore, USA – DAY 1
This was the first year the Surge conference took place, in Baltimore, USA. OmniTI is the company that organized it. 30" summary (TL;DR) The conference was amazing. Main topic was scalability. Met a...
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Surge 2010 scalability conference in Baltimore, USA – DAY 2
This is a summary of day 2 of the Surge conference that took place in Baltimore, USA, 30th of September and 1st of October 2010. For a quite comprehensive blog post about day 1, you can read my...
View ArticleMigration of VCL configuration from Varnish 2.0 to 2.1
Recently we migrated most of our services from Varnish 2.0 to 2.1. I'd like to explain what we changed with code (VCL) examples side by side, in case anyone still needs to migrate to 2.1 and needs some...
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How to detect the Debian version of a server without logging in
As Ops team, we're slowly taking over operations for several other teams here at Opera. One of our first tasks is to: First idea to check whether a server is Debian Lenny or Squeeze was to login and...
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My experience at Velocity Europe 2011 in Berlin
TL;DR This year there was the 1st edition of Velocity Europe. I got to present a talk on a DDoS attack we faced at Opera, and it was really awesome to be there. The long version… Around July this year...
View ArticleDisplay and filter traffic at the varnish level: vlogdump
Haven’t written much in the last few months. The reason is that I’ve been at work building the Opera Discover service backend, that we launched on Opera mobile for Android just a few days ago. A few...
View ArticleMySQL (Percona XtraDB) slave replication crash resilience settings
It’s been a geological age since my last blog post! Oh, so many things happened in the meantime. For the past four years, I worked on the development and operations side of the news recommendation...
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