[LON-CAPA-admin] Fedora 9, perl 5.10 and LON-CAPA 2.7.1
Stuart Raeburn
raeburn at msu.edu
Mon Dec 1 17:38:32 EST 2008
Michael,
Apparently Perl 5.10 is less forgiving than perl 5.8.8 and its predecessors.
If you replace line 1436 in /home/httpd/lib/perl/Apache/lonplot.pm
(rev 1.148) as follows:
- if (($curves[-1]->{'data'}) && ($#data !=
$#{@{$curves[-1]->{'data'}->[0]}})){
+ if (($curves[-1]->{'data'}) && ($#data != $#{$curves[-1]->{'data'}->[0]})){
and reload httpd, the perl error you are seeing in your Apache error
logs when trying to use a Data plot type problem will be eliminated.
Sorry about that.
Stuart Raeburn
MSU LON-CAPA group
Quoting Michael Dugdale <michael.dugdale at johnabbott.qc.ca>:
> Hi,
>
> I've been trying to get LON-CAPA up and running on some powermacs that
> we have here. I've been able to get a good Fedora 9 install up, and
> the missing rpms built from the LON-CAPA sources. The build goes
> through okay, I'm able to create a domain-coordinator, log in and run
> some test problems.
>
> The issue I'm having, though, is with Data Plot problems (gnuplot using
> data, rather than curves). It seems that in loading the "y"-variables,
> there's a problem with referencing the array. The error message itself
> is: "ERROR: , Can't use string ("201") as an ARRAY ref while "strict
> refs" in use at home/httpd/lib/perl//Apache/lonplot.pm line 1436."
>
> I've been beating myself silly with this one for a while now. I was
> just wondering if anyone has LON-CAPA 2.7.1 on Fedora 9 with perl-5.10
> running in a production environment. I've been noticing that perl-5.10
> can give errors like I'm seeing where perl-5.8.8 wouldn't.
>
> If you do have it running, could you please let me know the version
> numbers of the perl modules you've got loaded (it's possible there's a
> more subtle version creep going on). Below is the output of #yum list
> installed | grep -i perl | sort. I have a few extras since I needed to
> build the rpms from source. If you could point to any version
> inconsistencies, or just send me output of the same command I would
> appreciate it very much.
>
> Many thanks,
> Michael Dugdale
> Department of Physics
> John Abbott College
>
> Output of yum list installed | grep -i perl | sort
>
> perl-Algorithm-Diff.noarch 1.1902-6.fc9 installed
> perl-Authen-Captcha.noarch 1.023-2.fc9 installed
> perl-Authen-Krb4.ppc64 1.1-1.0.fc9.lc installed
> perl-Authen-Krb5.ppc64 1.8-1.0.fc9.lc installed
> perl-Authen-PAM.ppc64 0.16-5.fc9 installed
> perl-Bit-Vector.ppc64 6.4-8.fc9 installed
> perl-BSD-Resource.ppc64 1.28-6.fc9 installed
> perl-Cache-Memcached.noarch 1.24-1.0.fc9.lc installed
> perl-Carp-Clan.noarch 6.00-1.fc9 installed
> perl-Class-Singleton.noarch 1.4-3.fc9 installed
> perl-Compress-Raw-Zlib.ppc64 2.008-38.fc9 installed
> perl-Compress-Zlib.ppc64 2.008-38.fc9 installed
> perl-Crypt-DES.ppc64 2.05-7.fc9 installed
> perl-Crypt-IDEA.ppc64 1.08-1.0.fc9.lc installed
> perl-Crypt-SSLeay.ppc64 0.57-7.fc9 installed
> perl-Date-Calc.ppc64 5.4-6.fc9 installed
> perl-Date-Manip.noarch 5.48-3.fc9 installed
> perl-DateTime.ppc64 1:0.41-5.fc9 installed
> perl-DBD-MySQL.ppc64 4.005-8.fc9 installed
> perl-DBI.ppc64 1.607-1.fc9 installed
> perl-devel.ppc64 4:5.10.0-38.fc9 installed
> perl-Error.noarch 1:0.17012-2.fc9 installed
> perl-Event.ppc64 1.11-1.fc9 installed
> perl-Expect.noarch 1.21-1.fc9 installed
> perl-ExtUtils-MakeMaker.ppc64 6.36-38.fc9 installed
> perl-ExtUtils-ParseXS.ppc64 1:2.18-38.fc9 installed
> perl-File-MMagic.noarch 1.27-5.fc9 installed
> perl-GD-Barcode.noarch 1.15-3.fc9 installed
> perl-GDGraph3d.noarch 0.63-9.fc9 installed
> perl-GDGraph.noarch 1:1.44-4.fc9 installed
> perl-GD.ppc64 2.35-7.fc9 installed
> perl-GDTextUtil.noarch 0.86-11.fc9 installed
> perl-HTML-Parser_loncapa.ppc64 3.56-1.0.fc9.lc installed
> perl-HTML-Tagset.noarch 3.10-8.fc9 installed
> perl-HTML-Tree.noarch 1:3.23-4.fc9 installed
> perl-Image-Base.noarch 1.07-9.fc9 installed
> perl-Image-Info.noarch 1.28-1.fc9 installed
> perl-Image-Size.noarch 3.1-3.fc9 installed
> perl-Image-Xbm.noarch 1.08-8.fc9 installed
> perl-Image-Xpm.noarch 1.09-8.fc9 installed
> perl-IO-Compress-Base.ppc64 2.008-38.fc9 installed
> perl-IO-Compress-Zlib.ppc64 2.008-38.fc9 installed
> perl-IO-Socket-SSL.noarch 1.12-4.fc9 installed
> perl-IO-stringy.noarch 2.110-8.fc9 installed
> perl-IO-Tty.ppc64 1.07-5.fc9 installed
> perl-libs.ppc64 4:5.10.0-38.fc9 installed
> perl-libwww-perl.noarch 5.816-1.fc9 installed
> perl-MailTools.noarch 2.03-1.fc9 installed
> perl-Math-Cephes.ppc64 0.45-1.0.fc9.lc installed
> perl-Math-Random.ppc64 0.70-1.0.fc9.lc installed
> perl-MIME-Lite.noarch 3.01-6.fc9 installed
> perl-MIME-Types.noarch 1.23-3.fc9 installed
> perl-Module-Pluggable.ppc64 1:3.60-38.fc9 installed
> perl-Net-PH.noarch 2.21-1.0.fc9.lc installed
> perl-Net-SSLeay.ppc64 1.32-5.fc9 installed
> perl-OLE-Storage_Lite.noarch 0.15-2.fc9 installed
> perl-Params-Validate.ppc64 0.91-1.fc9 installed
> perl-Parse-RecDescent.noarch 1.95.1-5.fc9 installed
> perl-Pod-Escapes.ppc64 1:1.04-38.fc9 installed
> perl-Pod-POM.noarch 0.17-9.fc9 installed
> perl-Pod-Simple.ppc64 1:3.07-38.fc9 installed
> perl-PostScript-Simple.noarch 0.07-1.0.fc9.lc installed
> perl.ppc64 4:5.10.0-38.fc9 installed
> perl-RTF-HTMLConverter.ppc64 0.051-1.0.fc9.lc installed
> perl-Safe-Hole.ppc64 0.10-1.0.fc9.lc installed
> perl-Spreadsheet-WriteExcel.noarch 2.20-2.fc9 installed
> perl-String-CRC32.ppc64 1.4-6.fc9 installed
> perl-String-Similarity.ppc64 1.03-1.0.fc9.lc installed
> perl-suidperl.ppc64 4:5.10.0-38.fc9 installed
> perl-Test-Harness.ppc64 2.64-38.fc9 installed
> perl-Test-Simple.ppc64 0.80-38.fc9 installed
> perl-Text-Aspell.ppc64 0.09-3.fc9 installed
> perl-Text-Query.noarch 0.07-1.1.fc9.lc installed
> perl-TimeDate.noarch 1:1.16-8.fc9 installed
> perl-URI.noarch 1.35-8.fc9 installed
> perl-version.ppc64 3:0.74-38.fc9 installed
> perl-XML-DOM.noarch 1.44-4.fc9 installed
> perl-XML-Parser.ppc64 2.36-3.fc9 installed
> perl-XML-RegExp.noarch 0.03-4.fc9 installed
> perl-XML-Simple.noarch 2.18-3.fc9
> installed_______________________________________________
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