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Monday, September 16 • 4:10pm - 5:00pm
Case Study: Doing a Live Upgrade of Many Thousand Servers at Google from an Ancient Red Hat Distribution to Recent Debian-Based One - Marc Merlin, Google

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This talk will look at how we upgraded our ancient linux distribution on all the Google production servers to a more modern one based on debian stripped down and built from source. We do live upgrades on running machines using an rsync-like rollout mechanism, and we slowly switched distributions on the fly without rebooting or downtime unless required by separately upgraded kernel, but doing a 10 year jump of linux userspace without breaking users was no piece of cake. The talk will explain how something so crazy made sense, was even possible, executed, and worked out, as well as recommendations for maintaining linux big servers and dealing with upstream upgrades.

Audience: sysadmins, engineers, and managers interested on how to deal with large linux image deployment and upgrade.

Speakers
avatar for Marc Merlin

Marc Merlin

Linux Geek / BOFH, Google
Marc has been using Linux since 0.99pl15f (slackware 1.1.2, 1994), both as a sysadmin and userland contributor. He has worked for various tech companies in the Silicon Valley, including Network Appliance, SGI, VA Linux, Sourceforge.net, and now Google. | He has been giving Linux related talks since 2001 and done hacking in various areas like mail with exim, mailman, SpamAssassin, as well as maintained linux distributions. | Marc currently... Read More →


Monday September 16, 2013 4:10pm - 5:00pm
Strand 12B

Attendees (79)