Installing and Configuring the Storage Nodes
Note
OpenStack Object Storage should work on any modern filesystem that supports
Extended Attributes (XATTRS). We currently recommend XFS as it
demonstrated the best overall performance for the swift use case after
considerable testing and benchmarking at Rackspace. It is also the
only filesystem that has been thoroughly tested.
Install Storage node packages:
# apt-get install swift-account swift-container swift-object xfsprogs
# yum install openstack-swift-account openstack-swift-container openstack-swift-object xfsprogs
# zypper install openstack-swift-account openstack-swift-container openstack-swift-object xfsprogs
For every device on the node you wish to use for storage,
set up the XFS volume (/dev/sdb is used as an example). Use a single
partition per drive. For example, in a server with 12 disks you may use one or two disks
for the operating system which should not be touched in this step. The other 10 or 11
disks should be partitioned with a single partition, then formatted in XFS.
# fdisk /dev/sdb
mkfs.xfs /dev/sdb1
echo "/dev/sdb1 /srv/node/sdb1 xfs noatime,nodiratime,nobarrier,logbufs=8 0 0" >> /etc/fstab
mkdir -p /srv/node/sdb1
mount /srv/node/sdb1
chown -R swift:swift /srv/node
Create /etc/rsyncd.conf:
uid = swift
gid = swift
log file = /var/log/rsyncd.log
pid file = /var/run/rsyncd.pid
address = <STORAGE_LOCAL_NET_IP>
[account]
max connections = 2
path = /srv/node/
read only = false
lock file = /var/lock/account.lock
[container]
max connections = 2
path = /srv/node/
read only = false
lock file = /var/lock/container.lock
[object]
max connections = 2
path = /srv/node/
read only = false
lock file = /var/lock/object.lock
(Optional) If you want to separate rsync and replication traffic to
replication network, set STORAGE_REPLICATION_NET_IP
instead of STORAGE_LOCAL_NET_IP:
address = <STORAGE_REPLICATION_NET_IP>
Edit the following line in /etc/default/rsync:
RSYNC_ENABLE = true
Start rsync daemon:
# service rsync start
Note
The rsync daemon requires no authentication, so it should be run on
a local, private network.
Create the swift recon cache directory and set its
permissions.# mkdir -p /var/swift/recon
# chown -R swift:swift /var/swift/recon