Date: Mon, 4 Jul 2022 13:53:15 +0200 From: thilo jeremias <thilo@nispuk.com> To: freebsd-stable <freebsd-stable@freebsd.org> Subject: Problem ZFS send / receive 13.1-RELEASE Message-ID: <C9A31AB9-19AE-4FD7-BA52-EC01D0453A3C@nispuk.com>
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--Apple-Mail=_5931F2E6-83CB-46C2-9332-0603BDFCAF4F Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hello everyone, I posted a question on ( = https://forums.freebsd.org/threads/zfs-replication-interrupted-and-resumed= -missing-snapshots.85666/ ) Which I now think is a bug in zfs send/receive for 13.1-RELEASE Essentially, an interrupted & restarted receive does not create all = snapshots from the stream. The following: #Interrupted transfer=20 zfs send -R "$D@final" | dd bs=3D10m count=3D200 | zfs recv -s "$D"_bad #Resume transfer TOKEN=3D"$(zfs get -H receive_resume_token "$D"_bad | cut -f 3)" zfs send -t "$TOKEN" | zfs recv -s "$D"_bad #Good transfer zfs send -R "$D@final" | zfs recv -s "$D"_good Produces: NAME USED AVAIL REFER MOUNTPOINT Backup/testset_good@initial 85.2K - 128K - Backup/testset_good@add100m 85.2K - 100M - Backup/testset_good@add300m 85.2K - 400M - Backup/testset_good@del100m 85.2K - 300M - Backup/testset_good@del300m 0B - 128K - Backup/testset_good@final 0B - 128K - NAME USED AVAIL REFER MOUNTPOINT Backup/testset_bad@initial 85.2K - 128K - Backup/testset_bad@add100m 0B - 100M - Which is not correct since it misses the snapshots from the original = stream (=E2=80=9Cgood=E2=80=9D) Can this be reproduced by anyone else? Thilo ------------------------------- Dipl. Ing. Thilo Jeremias Hauptstra=C3=9Fe 11 35466 Rabenau T: +49 15782492240 --Apple-Mail=_5931F2E6-83CB-46C2-9332-0603BDFCAF4F Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; = charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; = -webkit-nbsp-mode: space; line-break: after-white-space;" class=3D"">Hello= everyone,<div class=3D""><br class=3D""></div><div class=3D"">I posted = a question on ( <a = href=3D"https://forums.freebsd.org/threads/zfs-replication-interrupted-and= -resumed-missing-snapshots.85666/" = class=3D"">https://forums.freebsd.org/threads/zfs-replication-interrupted-= and-resumed-missing-snapshots.85666/</a> )</div><div class=3D"">Which I = now think is a bug in zfs send/receive for 13.1-RELEASE</div><div = class=3D""><br class=3D""></div><div class=3D""><br class=3D""></div><div = class=3D"">Essentially, an interrupted & restarted receive does not = create all snapshots from the stream.</div><div class=3D""><br = class=3D""></div><div class=3D"">The following:</div><div class=3D""><pre = class=3D"bbCodeCode" dir=3D"ltr" data-xf-init=3D"code-block" = data-lang=3D"" style=3D"box-sizing: border-box; font-family: Monaco, = Menlo, Consolas, "Roboto Mono", "Andale Mono", = "Ubuntu Mono", monospace; font-size: 13px; word-wrap: normal; = margin-top: 0px; margin-bottom: 0px; padding: 10px 10px 0px; = line-height: 1.4; overflow: auto; direction: ltr; position: relative; = tab-size: 4; caret-color: rgb(20, 20, 20); color: rgb(20, 20, = 20);"><code style=3D"box-sizing: border-box; font-family: inherit; = font-size: 1em;" class=3D"">#Interrupted transfer=20 zfs send -R "$D@final" | dd bs=3D10m count=3D200 | zfs recv -s "$D"_bad #Resume transfer TOKEN=3D"$(zfs get -H receive_resume_token "$D"_bad | cut -f 3)" zfs send -t "$TOKEN" | zfs recv -s "$D"_bad </code></pre></div><div class=3D""><code style=3D"box-sizing: = border-box; font-family: inherit; font-size: 1em;" class=3D""><br = class=3D""></code></div><div class=3D""><code style=3D"box-sizing: = border-box; font-family: inherit; font-size: 1em;" class=3D""><pre = class=3D"bbCodeCode" dir=3D"ltr" data-xf-init=3D"code-block" = data-lang=3D"" style=3D"box-sizing: border-box; font-family: Monaco, = Menlo, Consolas, "Roboto Mono", "Andale Mono", = "Ubuntu Mono", monospace; font-size: 13px; word-wrap: normal; = margin-top: 0px; margin-bottom: 0px; padding: 10px 10px 0px; = line-height: 1.4; overflow: auto; direction: ltr; position: relative; = tab-size: 4; caret-color: rgb(20, 20, 20); color: rgb(20, 20, = 20);"><code style=3D"box-sizing: border-box; font-family: inherit; = font-size: 1em;" class=3D"">#Good transfer zfs send -R "$D@final" | zfs recv -s "$D"_good </code></pre><div class=3D""><code style=3D"box-sizing: border-box; = font-family: inherit; font-size: 1em;" class=3D""><br = class=3D""></code></div></code></div><div class=3D""><code = style=3D"box-sizing: border-box; font-family: inherit; font-size: 1em;" = class=3D""><br class=3D""></code></div><div class=3D""><code = style=3D"box-sizing: border-box; font-family: inherit; font-size: 1em;" = class=3D"">Produces:</code></div><div class=3D""><code = style=3D"box-sizing: border-box; font-family: inherit; font-size: 1em;" = class=3D""><pre class=3D"bbCodeCode" dir=3D"ltr" = data-xf-init=3D"code-block" data-lang=3D"" style=3D"box-sizing: = border-box; font-family: Monaco, Menlo, Consolas, "Roboto = Mono", "Andale Mono", "Ubuntu Mono", monospace; = font-size: 13px; word-wrap: normal; margin-top: 0px; margin-bottom: 0px; = padding: 10px 10px 0px; line-height: 1.4; overflow: auto; direction: = ltr; position: relative; tab-size: 4; caret-color: rgb(20, 20, 20); = color: rgb(20, 20, 20);"><code style=3D"box-sizing: border-box; = font-family: inherit; font-size: 1em;" class=3D"">NAME = USED AVAIL REFER MOUNTPOINT Backup/testset_good@initial 85.2K - 128K - Backup/testset_good@add100m 85.2K - 100M - Backup/testset_good@add300m 85.2K - 400M - Backup/testset_good@del100m 85.2K - 300M - Backup/testset_good@del300m 0B - 128K - Backup/testset_good@final 0B - 128K - NAME USED AVAIL REFER MOUNTPOINT Backup/testset_bad@initial 85.2K - 128K - Backup/testset_bad@add100m 0B - 100M -</code></pre><div = class=3D""><br class=3D""></div><div class=3D"">Which is not correct = since it misses the snapshots from the original stream = (=E2=80=9Cgood=E2=80=9D)</div><div class=3D""><br class=3D""></div><div = class=3D"">Can this be reproduced by anyone else?</div><div class=3D""><br= class=3D""></div><div class=3D""><br class=3D""></div><div = class=3D"">Thilo</div></code></div><div class=3D""><br = class=3D""></div><div class=3D""><br class=3D""><div class=3D""> <meta charset=3D"UTF-8" class=3D""><div style=3D"color: rgb(0, 0, 0); = letter-spacing: normal; text-align: start; text-indent: 0px; = text-transform: none; white-space: normal; word-spacing: 0px; = -webkit-text-stroke-width: 0px; word-wrap: break-word; = -webkit-nbsp-mode: space; line-break: after-white-space;" class=3D""><div = style=3D"color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; = text-indent: 0px; text-transform: none; white-space: normal; = word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: = break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" = class=3D"">-------------------------------<br class=3D"">Dipl. Ing. = Thilo Jeremias<br class=3D"">Hauptstra=C3=9Fe 11<br class=3D"">35466 = Rabenau<br class=3D""><br class=3D"">T: +49 15782492240<br class=3D""><br = class=3D""></div></div> </div> <br class=3D""></div></body></html>= --Apple-Mail=_5931F2E6-83CB-46C2-9332-0603BDFCAF4F--
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