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inac
Asked: 2010-07-01 20:28:39 +0800 CST

Migrated to new server, DNS setup >48 hrs, some MySQL inserts from domain still show up on old server

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Title says it all - I've migrated to a new dedicated server at a different IP.. It's been more than 48 hours since DNS was setup. Some MySQL inserts (standard php variables invoke mysql) from at least one domain this server hosts still show up on the old server, rather than the new. What's happening?

Here's one domain to check - http://inacentaur.com

migration domain-name-system mysql reverse-dns dedicated-server

2 Answers

  1. While most DNS servers observe cache settings, some providers set a minimum TTL to cut down on the load of having to verify domain names. At one point, AOL.com used to set a minimum TTL of 7 days.

    After 48 hours, depending on the TTL you set on your domain (or your host set), you should see about 95% of your traffic moved over.

    If possible, allow remote mysql connections and have your old server connect via TCP to your new server to get any transaction. The latency shouldn't be too bad and since it is only the stragglers, you shouldn't see too much effect, and won't lose any data.

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  2. A couple of days before migraitsey needed to reduce the TTL to 15 days. Before the migration, make proxy requests to the old server to new server. And then edit the DNS.

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