can you confirm all hosts are connected at full 1G speed and are not flapping to lower speeds? An issue I ran into was the Realtek driver that redhat has for the RTL8111/8168B is a huge POS. I installed a driver from Realtek's website and it fixed many of my poor performance issues? just a thought. Oh, and I see you are pinging via ipv6, that is another variable i've never tested with - if you have ipv4 addresses can you be sure gluster is using them? If ipv6 isn't native on your network is a router/other box running some kind of ipv6->ipv4->ipv6 thing and slowing down everything? On Sat, Mar 3, 2012 at 7:56 AM, Harald Hannelius <harald.hannelius at arcada.fi > wrote: > > On Fri, 2 Mar 2012, Bryan Whitehead wrote: > > I'd try putting all hostnames in /etc/hosts. Also, can you post ping times >> between each host ? >> > > They are in /etc/hosts. > > # ping6 -c3 alcippe > PING alcippe(alcippe) 56 data bytes > 64 bytes from alcippe: icmp_seq=1 ttl=64 time=0.160 ms > 64 bytes from alcippe: icmp_seq=2 ttl=64 time=0.088 ms > 64 bytes from alcippe: icmp_seq=3 ttl=64 time=0.150 ms > > --- alcippe ping statistics --- > 3 packets transmitted, 3 received, 0% packet loss, time 1998ms > rtt min/avg/max/mdev = 0.088/0.132/0.160/0.034 ms > > # ping6 -c3 aethra > PING aethra(aethra.arcada.fi) 56 data bytes > 64 bytes from aethra.arcada.fi: icmp_seq=1 ttl=64 time=0.154 ms > 64 bytes from aethra.arcada.fi: icmp_seq=2 ttl=64 time=0.158 ms > 64 bytes from aethra.arcada.fi: icmp_seq=3 ttl=64 time=0.164 ms > > --- aethra ping statistics --- > 3 packets transmitted, 3 received, 0% packet loss, time 1998ms > rtt min/avg/max/mdev = 0.154/0.158/0.164/0.015 ms > > # ping6 -c3 adraste > PING adraste(adraste) 56 data bytes > 64 bytes from adraste: icmp_seq=1 ttl=255 time=0.165 ms > 64 bytes from adraste: icmp_seq=2 ttl=255 time=0.155 ms > 64 bytes from adraste: icmp_seq=3 ttl=255 time=0.187 ms > > --- adraste ping statistics --- > 3 packets transmitted, 3 received, 0% packet loss, time 1998ms > rtt min/avg/max/mdev = 0.155/0.169/0.187/0.013 ms > > As said before, I don't think there's a problem with the LAN. Trust me, I > would know about it :) > > > >> >> On Fri, Mar 2, 2012 at 8:55 AM, Harald Hannelius < >> harald.hannelius at arcada.fi> >> wrote: >> >> On Fri, 2 Mar 2012, Brian Candler wrote: >> >> On Fri, Mar 02, 2012 at 05:25:18PM +0200, Harald Hannelius >> wrote: >> I'll have to test with just a two-way replica, >> and see if I get >> better performance out of that. I'm gonna loose >> the capability to >> have one node at the other site then >> >> >> Ah... are these nodes separated by a WAN? Synchronous >> replication is pretty >> sensitive to latency. You might want to look at >> geo-replication instead >> (which I've not tested) >> >> >> No, it's a 1 Gbps LAN. The other "site" is within LAN-range. >> >> -- >> >> Harald Hannelius | harald.hannelius/a\arcada.fi | +358 50 594 1020 >> ______________________________**_________________ >> Gluster-users mailing list >> Gluster-users at gluster.org >> http://gluster.org/cgi-bin/**mailman/listinfo/gluster-users<http://gluster.org/cgi-bin/mailman/listinfo/gluster-users> >> >> >> >> >> > -- > > Harald Hannelius | harald.hannelius/a\arcada.fi | +358 50 594 1020 > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gluster.org/pipermail/gluster-users/attachments/20120305/732be11f/attachment.htm>
