We have to upgrade a 2008 server to 2012. This server is a subscriber for transactional replication. The publisher is a 2012 server and is our main server. MS articles suggest that publisher activity needs to be stopped before upgrade of subscriber. BUt since the publisher is our main business server, we can't afford to stop activity on that. Has someone upgraded a replicated subscriber server without interfering with publisher?
Will it suffice if I just stop the log reader agent, upgrade the subscriber and then start the log reader agent?
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