Can't get to Assembla spaces and tools? It's a DNS propagation delay

Posted by Andy Singleton on Jun 6, 2007 2:13:00 AM

Since our hardware failure two weeks ago, we have been working to eliminate downtime moving to a new datacenter with faster response, adding RAID to all storage, and configuring hot swap machines. We made that move last night.

The system was down for about 2 hours (from 1:00 am to 3:00 am US eastern time.  That's a small price to pay for a big increase in future reliability.

HOWEVER, most people experienced much longer periods of downtime because of DNS propagation delays. Last week, we set the TTL on our DNS entries to 60 seconds, so that we could change the destination addresses for www.assembla.com and tools.assembla.com without any delays. Unfortunately, many DNS servers ignore these instructions, and were sending users to the old IP addresses (and servers that we shut down) for many hours or even a full day.

Topics: assembla

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