Hi Sage, On 02/20/2013 05:12 PM, Sage Weil wrote: > Hi Jim, > > I'm resurrecting an ancient thread here, but: we've just observed this on > another big cluster and remembered that this hasn't actually been fixed. Sorry for the delayed reply - I missed this in a backlog of unread email... > > I think the right solution is to make an option that will setsockopt on > SO_RECVBUF to some value (say, 256KB). I pushed a branch that does this, > wip-tcp. Do you mind checking to see if this addresses the issue (without > manually adjusting things in /proc)? I'll be happy to test it out... > > And perhaps we should consider making this default to 256KB... That's the value I've been using with my /proc adjustments since I figured out what was going on. My servers use a 10 GbE port for each of the cluster and public networks, with cephfs clients using 1 GbE, and I've not detected any issues resulting from that value. So, it seems like a decent starting point for a default... -- Jim > > Thanks! > sage > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
