[CentOS] squid HA failover?
Les Mikesell
lesmikesell at gmail.com
Thu Feb 5 22:31:07 UTC 2009
nate wrote:
>
>> I'm running a pair of squids as an internal cache for some intermediate
>> data used by a web server farm and currently doing failover by going
>> through an F5 bigip. However, I'd like to avoid the bigip and use
>> heartbeat since there are only two machines. I don't need to sync any
>
> I use bigip even if there is only 1 machine, using heartbeat
> sounds like it will make it quite a bit more complicated,
> load balancers make life easier..since you already have a
> good one(a pair hopefully), keep using it!
We have a lot of other equipment behind it and I want the capacity for
growth in the other pools. I agree it does a good job and is hard to
match where you need balancing, but this only needs failover.
> I use load balancers wherever possible even with 1 machine
> so I can make changes to the system(s) in the pool without
> impact. e.g. if I want to replace hardware, I can install the
> new hardware, add it to the pool and remove the old system.
> Of course it's ideal to always have at least 2.
A floating IP should serve the same purpose if you can swap it cleanly.
--
Les Mikesell
lesmikesell at gmail.com
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