[Openstack] High I/O on idle Swift devices

Rustam Aliyev rustam at code.az
Tue Dec 13 02:30:14 UTC 2011


I built 4 node test swift cluster and stored one 100MB file. Cluster was 
running 24 hours without any load. During this period, I can see 
constant read I/O of 3MB/s on each swift device. When I shutdown 
object-server I/O goes to zero. I've also increased replicator's 
run_pause to 300 sec, but it didn't help at all.

Is that an expected behavior? What causes such a high I/O on idle 
system. How can I troubleshoot this?

Many thanks,

More information about the Openstack mailing list