Planned System Maintenance - 01/23/2013

Discussion in 'Posts to Twitter' started by PopUpSteve, Jan 21, 2013.

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  1. PopUpSteve

    PopUpSteve Administrator

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    Dec 22, 2002
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    On Wednesday, January 23, 2013 at 9:00 AM eastern time, we will be doing a migration of the website and related services to a new server.

    At 8:30 AM eastern time on January 23, 2013, The forums will be put in "maintenance mode". This won't allow anyone new to connect and those that are already connected will be allowed to stay connected and finish whatever they are doing. At 9:00 AM eastern time, we will close all connections.

    Why are we doing this?
    With lots of traffic and growth, we have outgrown the current server's ability to handle lots of simultaneous connections and under busy times, the server is be coming unresponsive. Part of this is hardware, but most of it is the operating system ability to handle it. In Linux software distributions, in place upgrades of operating systems are sketchy at best and take lots of time. Moving to a server with the operating system in place is faster and safer.

    How long will this take?
    Unlike the last migration (1 1/2 years ago) where the servers were sitting right next to each other (the migration was under 30 minutes), the target server is in another office datacenter, so a physically backup is needed, driven to the new data-center location, restore the backup, then update the IP addressing to bring the server online. We expect this process to take no more than 3 hours.

    What can be expected on the new server and operating system as far as response time?
    The new server is designed to handle more simultaneous connections, where as the current server is designed to give the fastest speed possible. If you were going to take a stopwatch to some pages, there will probably be about a 10% speed drop (not noticeable for most people), but as the # of connections increases, there will be almost no slow down at all. The current server runs full speed until you get to about 400 connections, then drops performance by 60-70%. The new server starts out a bit slower, but at 600 connections, the performance drop is only 3% and when it goes to 1000 connections, the performance drop was still only 10%.
     
  2. PopUpSteve

    PopUpSteve Administrator

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    Dec 22, 2002
    Malvern, PA
    The move is complete. The search feature is still down while the new search function builds its index. But that should be completed shortly.

    Kudos to Phil for doing such a quick job and for all he does to keep PUP running. [:D]
     
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