Hi Doug, first of all, thank you for your reply.
Ok
1) Considering 2 Frontends and 2 Gluster FS Nodes, the best practice is to write a different fstab entry for each node?I don't see why you'd need that. The only differences you might have would be if you're mounting different volumes on different servers.You could homogenise that even further by simply using localhost instead of the server's FQDN.
Ok
Frontend1 (mount the first gluster node, and the second one as backup volume):gluster1.droplet.com:/app_volume /var/www/html glusterfs defaults,_netdev,backupvolfile -server=gluster2.droplet.com 0 0 Frontend2 /etc/fstab (mount the second gluster node, and the first one as backup volume):gluster2.droplet.com:/app_volume /var/www/html glusterfs defaults,_netdev,backupvolfile -server=gluster1.droplet.com 0 0 On the more recent versions (3.7+ at least), if you're mounting through fuse you no longer need to define backup servers, gluster deals with that internally. One mount option I would add would be "relatime".
Thank you for this suggestion, so I'm considering to use FUSE now.
2) I want to backup every day the volume files. I can run a zip command directly from the gluster node, or I need to mount it on the backup server than run the command? Is there any other good solution to store a backup?I don't see it'd make much difference. If it's lots of small files though, there could be a performance hit. If it did become an issue, it might be more efficient exporting snapshots (assuming your bricks are backed by LVM. ZFS would make it even easier).
Ok
3) Can I share WebApps folder between Tomcat servers? Is there any known issue? (for example putting a .war into the WebApps folder, I think I'll generate some errors due to tomcat war deploying? Anyone have experiences with tomcat and glusterfs shared folders?)4) Can I use a load balancer software to mount GlusterFS volumes? If YES, is there any benefits?Again, no need. The replica translator does that for you.
Perfect, but I don't understand if it could be a good idea share the WebApps folder, using a volume (called webapps) for all tomcats (so we can deploy only one time).
Thank you in advance, on next week, we are going to start the activities :)
regards,
regards,
Riccardo
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