NFS or rsync for sharing files between FreeBSD servers?
admin at govital.net
Wed Sep 7 20:32:38 UTC 2016
On Wed, 7 Sep 2016 21:39:34 +0530, Amitabh Kant wrote
> 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 rsync 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 huge
> difference further impacting the web servers running on the
> nfs_client servers ? The servers are connected to each other over
> gigabit lines, and the files are themselves not greater than 20-30
> kb on an average, with some of the larger image files somewhere
> around 4-5 MB.
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As an alternative to either I use CSYNC2 (http://oss.linbit.com/csync2/)
Keeps our primary services cluster in sync. Keeps revision changes logged.
And when there is an update lets you run scripts on the other nodes of the
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