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Editorial Team
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Asked: 2026-05-27T06:25:50+00:00

I have a production VPS instance in London, UK (for example). It serves a

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I have a production VPS instance in London, UK (for example). It serves a website with upto 10000 queries per day. I have another instance in Dallas, US whose only duty is to keep in sync with the production server by pulling the data.

Is it a good idea (in the first place) to cluster MySQL over the internet? Will the production server degrade in performance if:

  1. as long as it’s link with the backup server is down
  2. if it has to sync a lot with the backup server as it’s been offline for hours.
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  1. Editorial Team

    Firstly: What you’re describing here would be a MySQL master/slave configuration, not MySQL clustering. (MySQL Cluster is an uncommon and quirky variant of MySQL; it’s almost certainly not what you want to use.)

    Is it a good idea (in the first place) to cluster replicate MySQL over the internet?

    Sure. Replication is good stuff.

    Will the production master server degrade in performance…

    Unless you’re severely bottlenecked on I/O, replication should not affect the performance of the master. If the slave (backup) server is expected to be offline for extended periods of time, make sure you’re keeping binlogs for a sufficient amount of time.

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