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In-Reply-To: <YwSYlTguS1R6UiLO@msg.df7cb.de>
From: Didier Michel <didier.michel@enterprisedb.com>
Date: Wed, 24 Aug 2022 10:10:18 +0200
Message-ID: 
 <CAHCS47HBjWjCcaJOksVpntCpgs16jWL5Z3vDHJOw-th=giNYLA@mail.gmail.com>
Subject: Re: Issues with PG15beta3
To: Christoph Berg <myon@debian.org>
Cc: pgsql-pkg-debian@lists.postgresql.org
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Thank you for your feedback.

I found this on zstd code that also help a lot:
On older versions of libzstd, this option does not exist, and
trying to set it will fail. Similarly for newer versions if they
are compiled without threading support

So I will check (not sure yet how ) if zstd packaged in ubuntu Jammy is
compiled with threading support.

Thank you again for your help and time.
Didier


On Tue, Aug 23, 2022 at 11:06 AM Christoph Berg <myon@debian.org> wrote:

> Re: Didier Michel
> > Sorry, I did not include previous message:
> > With focal and Jammy, pg_basebackup returns another error when I try to
> use
> > several workers (ie "--compress=zstd:level=5,workers=2")
> >
> > pg_basebackup: checkpoint completed
> > pg_basebackup: error: could not set compression worker count to 2:
> > Unsupported parameter
>
> Try without the workers part? I guess that needs a yet newer zstd
> version.
>
> Christoph
>

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<div dir=3D"ltr">Thank you for your feedback.<br><br>I found this on zstd c=
ode that also help a lot:<div class=3D""><div class=3D"gmail-line" style=3D=
"font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:no=
rmal;font-size:13px;line-height:1;font-family:monospace,fixed;min-height:13=
px;white-space:pre-wrap;padding-left:53px;padding-bottom:0px;margin:0px;col=
or:rgb(0,0,0)"><span class=3D"gmail-comment" style=3D"color:rgb(128,0,0)">O=
n older versions of libzstd, this option does not exist, and</span></div><d=
iv class=3D"gmail-line" style=3D"font-variant-numeric:normal;font-variant-e=
ast-asian:normal;font-stretch:normal;font-size:13px;line-height:1;font-fami=
ly:monospace,fixed;min-height:13px;white-space:pre-wrap;padding-left:53px;p=
adding-bottom:0px;margin:0px;color:rgb(0,0,0)"><a name=3D"l00102" style=3D"=
color:rgb(61,87,140)"></a><span class=3D"gmail-comment" style=3D"color:rgb(=
128,0,0)">trying to set it will fail. Similarly for newer versions if they<=
/span></div><div class=3D"gmail-line" style=3D"font-variant-numeric:normal;=
font-variant-east-asian:normal;font-stretch:normal;font-size:13px;line-heig=
ht:1;font-family:monospace,fixed;min-height:13px;white-space:pre-wrap;paddi=
ng-left:53px;padding-bottom:0px;margin:0px;color:rgb(0,0,0)"><a name=3D"l00=
103" style=3D"color:rgb(61,87,140)"></a><span class=3D"gmail-comment" style=
=3D"color:rgb(128,0,0)">are compiled without threading support</span></div>=
</div><div class=3D""><br></div><div class=3D"">So I will check (not sure y=
et how ) if zstd packaged in ubuntu=C2=A0Jammy is compiled with threading s=
upport.</div><div class=3D""><br></div><div class=3D"">Thank you again for =
your help and time.<br>Didier</div><div class=3D"hv-current-cursor"><br></d=
iv></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_att=
r">On Tue, Aug 23, 2022 at 11:06 AM Christoph Berg &lt;<a href=3D"mailto:my=
on@debian.org">myon@debian.org</a>&gt; wrote:<br></div><blockquote class=3D=
"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(2=
04,204,204);padding-left:1ex">Re: Didier Michel<br>
&gt; Sorry, I did not include previous message:<br>
&gt; With focal and Jammy, pg_basebackup returns another error when I try t=
o use<br>
&gt; several workers (ie &quot;--compress=3Dzstd:level=3D5,workers=3D2&quot=
;)<br>
&gt; <br>
&gt; pg_basebackup: checkpoint completed<br>
&gt; pg_basebackup: error: could not set compression worker count to 2:<br>
&gt; Unsupported parameter<br>
<br>
Try without the workers part? I guess that needs a yet newer zstd<br>
version.<br>
<br>
Christoph<br>
</blockquote></div>

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