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The Pirate’s (B)log Book

Diagrams and other important news from the gliffy team

Unplanned downtime – December 19, 2006

December 19, 2006 by Chris Kohlhardt

At approximately 1:55AM PST on December 19th, 2006, the primary and secondary DNS servers we use to manage the gliffy.com domain became unavailable. These DNS issues caused problems for anyone attempting to access gliffy.com through the web, or any emails sent to gliffy.com. As soon as we became aware of the problem, we added additional DNS servers. Unfortunately, it can take some time for the additional DNS servers to take hold. Everything should be back to normal by the time the new DNS changes take effect (1-2 days) or when the previous primary and secondary DNS servers come back online. We know that the DNS changes have already begun propagating, so we expect everything will be back to normal soon.

This problem is the result of us relying on a single vendor for DNS. We will drastically reduce the likelihood of this issue happening again by using a total of 3 vendors for DNS, which will include 6 DNS servers. Hopefully this will help prevent any issues of this nature in the future.

We understand that having the gliffy.com service available at all times is critical to making this model work. Please accept our sincere apologies for the inconvenience this issue has caused, and know that we are working hard to improve reliability of the service.

- Chris, Clint, and the Gliffy team



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2 Responses to Unplanned downtime – December 19, 2006

  1. Fredrik says:
    December 19, 2006 at 2:54 pm

    Hi!

    Thank you for resolving this issue. I was just about to put a manual host-entry in my WINXP machine, just when before the DNS was updated. (64.34.161.59 http://www.gliffy.com)

    Yes we are dependend on your service.

    If we can help you somehow, maybe you make use of dns.umu.se which is central DNS-node for swedish university network, just let me know, I do my best, to arrange it.

    Also, if you would like to host service at our university, don’t hesitate to ask, we can sometimes be very flexible…(I hope..)

    Thanks

    Fredrik

  2. chrisk says:
    December 19, 2006 at 8:50 pm

    Hi Fredrik,

    Thanks for the comment. We’re evaluating our options now in terms of a pricing model for the service to improve uptime. Until then, you might consider looking at the Gliffy Plugin for Confluence, which will a provide you with the ability to host Gliffy on your own, within the Enterprise Wiki Confluence:

    http://www.gliffy.com/products/confluencePlugin/

    regards

    Chris Kohlhardt
    Co-founder, Gliffy Inc.