[Gluster-users] Possible to put some sort of qos/rate-limit on glusterfsd?

[Andrew Lau]

Hi all,

Sadly my google skills aren't finding me any results - is there an option
to limit the CPU usage and/or the disk IO intensity of glusterfsd.

Example scenario, oVirt + gluster on the same host when it comes to adding
an extra host + replicated brick the original host with the brick goes
crazy with 500% cpu as it copies just under 1TB of data across to the new
replicated brick. Going crazy I mean everything else will hang, simple "ls"
command will take 30+ seconds.

Limiting the network bandwidth to 200Mbps seems to solve this issue, I'm
quite sure this is a CPU issue rather than IO so I was wondering if there's
any possibility to limit this down so the nic's itself don't have to get
rate limited.

Thanks,
Andrew
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