Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Fri, 2 Mar 2012 18:55:22 -0800 (PST), envisionrx <ron.wells at envision-rx.com> wrote: > Brian R. Hellman wrote: >> >> >> This may be a situation where DRBD Proxy would help, however we'd need a >> bit more information to determine that. >> >> Do the logs on the DR side say anything with regards to DRBD at all? >> >> The logs have normal drbd info, but i don't see anything on the DR side >> indicating an error condition. >> >> What is the latency between the sites? >> >> The ping time between sites is typically around 60 ms, is that what your >> asking, or is there some other measurement you're looking for? >> >> Are you able to trigger this, or do you see a pattern of when it occurs? >> >> Well, interestingly, we decided to try to configure an ipsec tunnel >> between the sites, we've been using an openvpn tunnel. We're having >> trouble getting the ipsec tunnel to work. When we are working with the >> ipsec tunnel we have a very strange situation where the tunnel shows as >> being up, we can ping through the tunnel, ssh through the tunnel, but if >> we try to pass any significant amount of traffic through the tunnel it >> flakes out. For example if we try to scp through the tunnel it starts >> and >> then stalls. If we try to sync drbd through the tunnel we see this >> sock_sendmsg time expired failure situation all the time. So at this >> point if we use the ipsec tunnel we can duplicate it consistently. >> This looks like MTU problem. Try to ping with different packet sizes to determine the link MTU and adjust accordingly. >> >> >> -- >> >> : Brian Hellman >> : LINBIT | "Your Way to High Availability" >> : 1-877-4-LINBIT >> : Web: http://www.linbit.com >> : >> : Twitter: http://www.linbit.com/en/twitter >> : Facebook: http://www.linbit.com/en/facebook >> >> _______________________________________________ >> drbd-user mailing list >> drbd-user at lists.linbit.com >> http://lists.linbit.com/mailman/listinfo/drbd-user >> >>