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Re: OpenVZ IO Isolation ? [message #42606 is a reply to message #42604] Thu, 05 May 2011 18:46 Go to previous messageGo to previous message
seanfulton is currently offline  seanfulton
Messages: 105
Registered: May 2007
Senior Member
Absolutely! I know of no Linux system that will block *all* disk I/O from all other processes until one process finishes it's task. A DOS system, maybe. But Linux has a scheduler that hops back and forth between processes to give everybody a little slice of heaven from time to time. That's where you would use ionice to determine how big a slice each player gets.

No, this is really odd because it just shuts down everything until the MySQL restore is either killed or finished.

First post I had on this was a bug report and I thought it was related to an NFS file transfer, because it cropped up on the HN while doing a backup onto an NFS volume. In the year's since, I've seen it reappear over and over again, but since most of the "heavy" stuff is being done within the VE's, I haven't noticed whether it happens on the HN itself.

sean
 
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