Question about Google Datacenters

Discussion in 'Google' started by maha, Oct 12, 2005.

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  1. #1
    Google seems to have very different results among its datacenters. Anybody know exactly how Google (U.S.) datacenters work?

    - Does Google Search Results come from one main datacenter? The other dataceters are just secondary backups.

    or

    - Are the search queries spread equally among all of its datacenters? Depending on geographic location?
     
    maha, Oct 12, 2005 IP
  2. Jim_Westergren

    Jim_Westergren Notable Member

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    #2
    Per what I know the nearest DC is contacted first and that data presented and then the rest of the DCs.
     
    Jim_Westergren, Oct 12, 2005 IP
  3. web-rover

    web-rover Peon

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    #3
    hmmm, i'm not exactly sure what you mean. Could you reword that.
     
    web-rover, Oct 12, 2005 IP
  4. Jim_Westergren

    Jim_Westergren Notable Member

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    #4
    Like when you search in the SERPs. Data of nearest DC is presented first in the results and the the rest of the other DCs - to make sure it goes fast.

    But it might be wrong.
     
    Jim_Westergren, Oct 12, 2005 IP
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  5. minstrel

    minstrel Illustrious Member

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    #5
    I don't think the primary factor is geographical location (unless you're searching with a regional Google). I think it has to do with server load on that datacenter when you run your search.
     
    minstrel, Oct 12, 2005 IP
  6. web-rover

    web-rover Peon

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    #6
    do data centers eventually all provide the same results?
     
    web-rover, Oct 13, 2005 IP
  7. minstrel

    minstrel Illustrious Member

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    #7
    Yes. Most of the time there will be little or no variation across the datacenters.
     
    minstrel, Oct 13, 2005 IP
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  8. frankm

    frankm Active Member

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    #8
    Google has set up their nameserver in a way that it will give back different IP's (what you call datacenters) depending on where the query came from.

    when I look up www.google.com from a server in California, I get:
    www.google.com canonical name = www.l.google.com.
    Name: www.l.google.com
    Address: 66.102.7.99
    Name: www.l.google.com
    Address: 66.102.7.104
    Name: www.l.google.com
    Address: 66.102.7.147

    but when I look up www.google.com from a server in Europe I get :
    www.google.com canonical name = www.l.google.com.
    Name: www.l.google.com
    Address: 66.249.93.99
    Name: www.l.google.com
    Address: 66.249.93.104

    So assume google has multiple datacenters (pretty safe to assume), you will be directed to the nearest one depending on you own IP.


    EDIT: that's a lot of www.l.google.com links! <G>
     
    frankm, Oct 13, 2005 IP