On Mon, Jan 5, 2009 at 2:50 PM, Richard Elling <richard.ell...@sun.com> wrote: > Correlation question below... > > Brent Jones wrote: >> >> On Sun, Jan 4, 2009 at 11:33 PM, Carsten Aulbert >> <carsten.aulb...@aei.mpg.de> wrote: >> >>> >>> Hi Brent, >>> >>> Brent Jones wrote: >>> >>>> >>>> I am using 2008.11 with the Timeslider automatic snapshots, and using >>>> it to automatically send snapshots to a remote host every 15 minutes. >>>> Both sides are X4540's, with the remote filesystem mounted read-only >>>> as I read earlier that would cause problems. >>>> The snapshots send fine for several days, I accumulate many snapshots >>>> at regular intervals, and they are sent without any problems. >>>> Then I will get the dreaded: >>>> " >>>> cannot receive incremental stream: most recent snapshot of pdxfilu02 >>>> does not match incremental source >>>> " >>>> >>>> >>> >>> Which command line are you using? >>> >>> Maybe you need to do a rollback first (zfs receive -F)? >>> >>> Cheers >>> >>> Carsten >>> _______________________________________________ >>> zfs-discuss mailing list >>> zfs-discuss@opensolaris.org >>> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >>> >>> >> >> I am using a command similar to this: >> >> zfs send -i pdxfilu01/arch...@zfs-auto-snap:frequent-2009-01-04-03:30 >> pdxfilu01/arch...@zfs-auto-snap:frequent-2009-01-04-03:45 | ssh -c >> blowfish u...@host.com /sbin/zfs recv -d pdxfilu02 >> >> It normally works, then after some time it will stop. It is still >> doing a full snapshot replication at this time (very slowly it seems, >> I'm bit by the bug of slow zfs send/resv) >> >> Once I get back on my regular snapshotting, if it comes out of sync >> again, I'll try doing a -F rollback and see if that helps. >> > > When this gets slow, are the other snapshot-related commands also > slow? For example, normally I see "zfs list -t snapshot" completing > in a few seconds, but sometimes it takes minutes? > -- richard > >
I'm not seeing zfs related commands any slower. On the remote side, it builds up thousands of snapshots, and aside from SSH scrolling as fast as it can over the network, no other slowness. But the actual send and receive is getting very very slow, almost to the point of needing the scrap the project and find some other way to ship data around! -- Brent Jones br...@servuhome.net _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
