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redundancy setup
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redundancy setup

wcgodzwcgodz Member
edited April 2013 in Help

Hello, I am interested in setting up my site using multiple VPS for redundancy, but at this moment, I have doubts and would like to verify if what I have at hand is correct, so would just like to clarify things before proceeding.

From what I have gathered so far, using Rage4 DNS service is the first part of this setup: when VPS1 goes down, it failsover to VPS2 and vice versa. There are other services, but I have seen glowing comments about this service, thus will just use this.

After which, I have to sync my files from VPS1 to VPS2 on a regularly basis. What I have now is just a simple website, so what's to me is just have uptime. But I am wondering, what is the best way for database replication? For files, I will be using Rsync, but for database replication, I am only familiar with mysqldump, but the process is abit tedious. Thus I am wondering if there are any better ways to do this database replication.

At the moment, I do not need to replicate it as often, but just wondering for future possible applications, this may be necessary.

Is this all I have to consider to setup redundancy for my website? Or are there other things that I have missed out that may be a best practice kind of thing? And finally, assuming I have 2xVPS, VPS1 and VPS2, can I just get a 3rd VPS (VPS3) and replicate both VPS1 and VPS2 to VPS3?

Sorry for the long post, but I am just curious and I understand that Murphy always has his way around here. Thanks for your assistance!

Comments

  • bnmklbnmkl Member

    Ask @KuJoe.

    He has slaves on the Moon and sends backups to Mars.

  • I always wondered, how fast does the Rage4 DNS switch? Doesn't it take a while to switch?

  • @taronyu said: I always wondered, how fast does the Rage4 DNS switch? Doesn't it take a while to switch?

    My guess is that it would take at most TTL secs for clients to get the updated record value

  • gbshousegbshouse Member, Host Rep

    @wcgodz - thanks for using Rage4 DNS
    @taronyu, @MiguelQ - yes, it depends from TTL

  • raindog308raindog308 Administrator, Veteran

    @MiguelQ said: My guess is that it would take at most TTL secs for clients to get the updated record value

    Assuming your nameserver honors TTLs less than some arbitrary value. Many don't - they round up TTLs to 3600.

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