Date: Mon, 15 Jul 2024 18:41:07 +1000 From: Jason Tubnor <jason@tubnor.net> To: Garrett Wollman <wollman@bimajority.org>, Rick Macklem <rick.macklem@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: Possible bug in zfs send or pipe implementation? Message-ID: <b8d25aa4-4f66-440e-b2ba-043c4dcfed69@tubnor.net> In-Reply-To: <26260.24797.484878.694868@hergotha.csail.mit.edu> References: <26259.12713.114036.564205@hergotha.csail.mit.edu> <CAM5tNy4pPF9mHdXM5W6gjztm4_TtFfXnOLu3cdkqvaRf3Ab5uA@mail.gmail.com> <26259.17366.276955.824313@hergotha.csail.mit.edu> <CAM5tNy5m9-rqNTWJP5wAs9FewB6=FW9XbAe4V7qLgnrYJkSFKA@mail.gmail.com> <26260.24797.484878.694868@hergotha.csail.mit.edu>
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On 15/07/2024 9:35 am, Garrett Wollman wrote:
> I'm currently running syncoid with `--quiet`, which removes `pv` from
> the pipeline. It seems to be moving along, but of course I can't
> easily tell what it's doing.
>
> Without `pv` in the way, the process reading the pipe is `lzop`
> instead, which doesn't try to do any fancy select() stuff, it's just a
> normal filter reading data from stdin and writing compressed data to
> stdout, in sequence.
I'm having the same issue here. I thought it was just my hardware and/or
syncoid that was having this issue on 3.5TB dataset replications.
I'll try the quiet mode to see if removing PV solves the problem. I'm
also using compression=none so I won't see lzop.
Cheers.
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<div class="moz-cite-prefix">On 15/07/2024 9:35 am, Garrett Wollman
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:26260.24797.484878.694868@hergotha.csail.mit.edu">
<pre class="moz-quote-pre" wrap="">I'm currently running syncoid with `--quiet`, which removes `pv` from
the pipeline. It seems to be moving along, but of course I can't
easily tell what it's doing.
Without `pv` in the way, the process reading the pipe is `lzop`
instead, which doesn't try to do any fancy select() stuff, it's just a
normal filter reading data from stdin and writing compressed data to
stdout, in sequence.
</pre>
</blockquote>
<p>I'm having the same issue here. I thought it was just my hardware
and/or syncoid that was having this issue on 3.5TB dataset
replications.</p>
<p>I'll try the quiet mode to see if removing PV solves the problem.
I'm also using compression=none so I won't see lzop.</p>
<p>Cheers.<br>
</p>
<blockquote type="cite"
cite="mid:26260.24797.484878.694868@hergotha.csail.mit.edu">
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style="white-space: pre-wrap">
</span></pre>
</blockquote>
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