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Upgrading a SQL Replication Topology

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Jonathan Allen wrote to me asking what order one should upgrade servers in a replication topology - pointing out that this doesn't seem obviouis from Books On Line, which I agree.

The answer is essentially the same as for any previous upgrade:  Distributor first (as it has to handle new and old log record formats), then the Publisher and finally the Subscribers.

Comments

  • Anonymous
    August 23, 2005
    I just posted about this today as well. (http://blogs.technet.com/kevinremde/archive/2005/08/23/SQLTidbit004.aspx)

    My understanding, though is that as long as you have done the distributor, it really doesn't matter which ones you do next. Publishers and Subscribers can be either 2000 or 2005.
  • Anonymous
    August 24, 2005
    Hi Kevin

    I'm sure you're correct - I was taking a 'safe' steer from SQL 2000 BOL (mk:@MSITStore:C:Program%20FilesMicrosoft%20SQL%20Server80ToolsBooksinstsql.chm::/in_upgrade_45ir.htm)which does give this order but does make exception - and a colleague with a priori knowledge