Trace: • glusterfs

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glusterfs

  • uses NFS
  • very few dependencies
  • can run on top of any filesystem
  • automatic failover

Things I'm not sure about:

  • no-metadata server architecture
  • noted some performance slowdown with Samba
  • using any filesystem means that they're not taking advantage of some situations, or may be not using a large featureset; generally, it makes me think this is more of a hobby setup (“we can run anywhere!”) than a production one (“use these for best practices”)

Setup

Create an format a partition for the node: 

mkfs.xfs -i size=512 /dev/sdb1
mount /dev/sdb1 /var/gluster
mkdir /var/gluster/brick

Add an entry to /etc/fstab for each server: 

/dev/sdb1 /var/gluster/brick1 xfs noatime 0 0

Mount the drive, and start the glusterfs daemon: 

mount -a
/etc/init.d/glusterd start

Have each server probe each other. On server1: 

gluster peer probe server2

On server2: 

gluster peer probe server1