Date: Thu, 13 Jun 2013 11:06:57 -0500 From: Larry Rosenman <ler@lerctr.org> To: freebsd-fs@freebsd.org Subject: Re: zfs send/recv dies when transferring large-ish dataset Message-ID: <7dbb4a3d84381d923e22ec5ed77ea15e@webmail.lerctr.org> In-Reply-To: <CAC-LZTajW0SO_dH9ZtUH80zX628vcosL_vOzwkwB1JF1PZy0qA@mail.gmail.com> References: <CAC-LZTYLzFPTvA6S4CN0xTd-E_x9c3kxYwQoFed5LkVBrwVk0Q@mail.gmail.com> <57e0551229684b69bc27476b8a08fb91@DB3PR07MB059.eurprd07.prod.outlook.com> <CAC-LZTajW0SO_dH9ZtUH80zX628vcosL_vOzwkwB1JF1PZy0qA@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
This may be related to the grief I'm seeing in general with send/recv. I try to send streams and it breaks with invalid datastream or similar to yours. I've posted many times, and offered up my machine(s) to debug but no takers. On 2013-06-13 10:56, Jona Schuman wrote: > machine2# nc -d -l 9999 | zfs receive -v -F -d storagepool > machine1# zfs send -v -R dataset@snap | nc machine2 9999 > > machine1-output: sending from @ to dataset@snap > machine2-output: receiving full stream of dataset@snap into > storagepool/dataset@snap > machine1-output: warning: cannot send 'dataset@snap': Broken pipe > machine1-output: Broken pipe > > > On Thu, Jun 13, 2013 at 3:42 AM, Ivailo Tanusheff > <Ivailo.Tanusheff@skrill.com> wrote: >> Hi, >> >> Can you try send/recv with the -v or with -vP swiches, so you can see >> more verbose information? >> >> Regards, >> Ivailo Tanusheff >> >> -----Original Message----- >> From: owner-freebsd-fs@freebsd.org >> [mailto:owner-freebsd-fs@freebsd.org] On Behalf Of Jona Schuman >> Sent: Thursday, June 13, 2013 2:41 AM >> To: freebsd-fs@freebsd.org >> Subject: zfs send/recv dies when transferring large-ish dataset >> >> Hi, >> >> I'm getting some strange behavior from zfs send/recv and I'm hoping >> someone may be able to provide some insight. I have two identical >> machines running 9.0-RELEASE-p3, each having a ZFS pool (zfs 5, zpool >> 28) for storage. I want to use zfs send/recv for replication between >> the two machines. For the most part, this has worked as expected. >> However, send/recv fails when transferring the largest dataset (both >> in actual size and in terms of number of files) on either machine. >> With these datasets, issuing: >> >> machine2# nc -d -l 9999 | zfs recv -d storagepool machine1# zfs send >> dataset@snap | nc machine2 9999 >> >> terminates early on the sending side without any error messages. The >> receiving end continues on as expected, cleaning up the partial data >> received so far and reverting to its initial state. (I've tried using >> mbuffer instead of nc, or just using ssh, both with similar results.) >> Oddly, zfs send dies slightly differently depending on how the two >> machines are connected. When connected through the racktop switch, zfs >> send dies quietly without any indication that the transfer has failed. >> When connected directly using a crossover cable, zfs send dies quietly >> and machine1 becomes unresponsive (no network, no keyboard, hard reset >> required). In both cases, no messages are printed to screen or to >> anything in /var/log/. >> >> >> I can transfer the same datasets successfully if I send/recv to/from >> file: >> >> machine1# zfs send dataset@snap > /tmp/dump machine1# scp /tmp/dump >> machine2:/tmp/dump machine2# zfs recv -d storagepool < /tmp/dump >> >> so I don't think the datasets themselves are the issue. I've also >> successfully tried send/recv over the network using different network >> interfaces (10GbE ixgbe cards instead of the 1GbE igb links), which >> would suggest the issue is with the 1GbE links. >> >> Might there be some buffering parameter that I'm neglecting to tune, >> which is essential on the 1GbE links but may be less important on the >> faster links? Are there any known issues with the igb driver that >> might be the culprit here? Any other suggestions? >> >> Thanks, >> Jona >> _______________________________________________ >> freebsd-fs@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-fs >> To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" >> >> > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 (c) E-Mail: ler@lerctr.org US Mail: 430 Valona Loop, Round Rock, TX 78681-3893
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?7dbb4a3d84381d923e22ec5ed77ea15e>