NFS or rsync for sharing files between FreeBSD servers?
solene at perso.pw
Wed Sep 7 16:18:37 UTC 2016
Le 2016-09-07 18:09, Amitabh Kant a écrit :
> We need to share a number of directories between 3 servers running 9.3
> Most of these directories contain php/html/js/images files which do not
> change frequently.
> We need to keep the directories in sync on all three servers.
> Currently, we
> run a rsync command every time there is a change in one of the
> files/directories. Sometimes it does happen that we forget to run the
> script making one of the servers return old versions.
> That is where we are planning to introduce a nfs_server on one of the
> servers, while the other two will be nfs_clients accessing the files
> through a shared directory. I understand that it would present a single
> point of failure, but in terms of disk access speed, will it make a
> difference further impacting the web servers running on the nfs_client
> servers ? The servers are connected to each other over gigabit lines,
> the files are themselves not greater than 20-30 kb on an average, with
> of the larger image files somewhere around 4-5 MB.
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When does the files changes ? Is it the server changing the files or is
it when your team push changes ? If the changes come from your team,
just change your deployment script to push it to the 3 servers. I would
recommend rsync because if it doesn't change a lot with a NFS you will
add a SPOF (single point of failure) and overhead for no benefit.
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