> The object servers should only be talking to each other during replication.
> They should not talk to the proxy, and probably not the load balancer. Can
> you provide the output of "swift-ring-builder /etc/swift/object.builder" and
> more details on the network configuration of this system.
First please allow me to correct my first email. I found out that most of the
traffic is REPLICATE requests and not rsyncs between storage nodes.
So here is the output of the ring builder:
# swift-ring-builder /etc/swift/object.builder
/etc/swift/object.builder, build version 5
262144 partitions, 3.000000 replicas, 1 regions, 5 zones, 5 devices, 0.00
balance
The minimum number of hours before a partition can be reassigned is 1
Devices: id region zone ip address port replication ip replication
port name weight partitions balance meta
0 1 5 10.10.6.16 6000 10.10.6.16
6000 device4 10.00 157287 0.00
1 1 3 10.10.6.14 6000 10.10.6.14
6000 device2 10.00 157286 -0.00
2 1 1 10.10.6.17 6000 10.10.6.17
6000 device5 10.00 157286 -0.00
3 1 2 10.10.4.21 6000 10.10.4.21
6000 device1 10.00 157287 0.00
4 1 4 10.10.6.15 6000 10.10.6.15
6000 device3 10.00 157286 -0.00
Well, as far as network configuration goes, I'm running Openstack on two
blades. The second one has only a compute node and Swift installed (1 Proxy
Node and 1 Storage Node). Both machines are on the same vlan. The others
Storage Nodes are on a different vlan as guest virtual machines of the first
two. Between the two vlans there's a firewall where I logged the traffic.
It came to my attention that this should be the object-replicator doing its
work, but the fact is that I get about a thousand or 2 requests per second
between vlans - (the real machine running a Proxy and a Storage Node) and the
virtual machines (all Storage Nodes only) - and it consumes a lot of resources
(mainly CPU) seems to be a bit of a waste because the cluster is not being used
for more than 2 weeks - nothing added or deleted from it.
Can you tell me if this is normal behaviour? If so, how will this scale when I
add more objects? Will it keep getting more and more CPU usage?
> Generally the proxies are configured with multiple interfaces as the object
> servers and other backend storage nodes should not be accessible to clients
> directly.
Yes, I believe this is the case.
Thank you for your answer
Diogo Vieira <[email protected]>
Programador
Eurotux Informática, S.A. | www.eurotux.com
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