Hi,

As an addendum:

You can try a manual workaround. Run gunzip on extract.o.sorted.gz and
do lexical-reordering-score on the resulting plain text file. 

It might be inconvenient but would hopefully solve the issue.

Cheers,
Matthias


On Thu, 2015-12-17 at 17:44 +0000, Matthias Huck wrote:
> Hi,
> 
> It's a problem that apparently occurs very rarely, and as Guy mentioned,
> we were so far assuming that it's caused by a zlib bug. 
> 
> However, the zlib bug was (to my knowledge) fixed in zlib v1.2.8. 
> This seems to be the bug fix: 
> https://github.com/madler/zlib/commit/51370f365607fe14a6a7a1a27b3bd29d788f5e5b
> 
> I've only encountered the issue once (and I'm training systems
> frequently). When I came across it, I executed the same command with a
> Moses compile on a different machine that was running an older version
> of OpenSuse, rather than Ubuntu 12.04. The problem did not exist on the
> old system.
> 
> My guess is that it really is a zlib bug, but it would be worrying if
> switching to zlib v1.2.8 doesn't resolve it.
> 
> Cheers,
> Matthias
> 
> 
> On Thu, 2015-12-17 at 09:18 -0800, Varden Wang wrote:
> > I seem to be having a very very similar issue. I have the exact same
> > lib package as Guy (but I upgraded from lib 1.2.3.4). I'm using the
> > commit SHA e211d752f6bc680094520482f190d0f805405c6c of the
> > mosesdecoder. The funny thing is that I trained on the very same setup
> > on different data sets without encountering this problem.
> > 
> > My error:
> > 
> > Executing: 
> > /usr/local/google/home/varden/MOSES/mosesdecoder/scripts/../bin/lexical-reordering-score
> > /usr/local/google/home/varden/MOSES/FRENCH_moses_HELP_CONTENT_v1/train/model/extract.o.sorted.gz
> > 0.5 
> > /usr/local/google/home/varden/MOSES/FRENCH_moses_HELP_CONTENT_v1/train/model/reordering-table.
> > --model "wbe msd wbe-msd-bidirectional-fe"
> > 
> > Lexical Reordering Scorer
> > 
> > scores lexical reordering models of several types (hierarchical,
> > phrase-based and word-based-extraction
> > 
> > terminate called after throwing an instance of 'util::GZException'
> > 
> >   what():  zlib encountered invalid distances set code -3
> > 
> > ERROR: Execution of:
> > /usr/local/google/home/varden/MOSES/mosesdecoder/scripts/../bin/lexical-reordering-score
> > /usr/local/google/home/varden/MOSES/FRENCH_moses_HELP_CONTENT_v1/train/model/extract.o.sorted.gz
> > 0.5 
> > /usr/local/google/home/varden/MOSES/FRENCH_moses_HELP_CONTENT_v1/train/model/reordering-table.
> > --model "wbe msd wbe-msd-bidirectional-fe"
> > 
> >   died with signal 6, with coredump
> > 
> > Thanks,
> > 
> > Varden
> > 
> > On Mon, Dec 7, 2015 at 9:01 AM,  <moses-support-requ...@mit.edu> wrote:
> > > Send Moses-support mailing list submissions to
> > >         moses-support@mit.edu
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> > > Today's Topics:
> > >
> > >    1. Lexical reordering fails with zlib (Guy)
> > >
> > >
> > > ----------------------------------------------------------------------
> > >
> > > Message: 1
> > > Date: Mon, 7 Dec 2015 06:14:47 +0000 (UTC)
> > > From: Guy <guy...@yahoo.com>
> > > Subject: [Moses-support] Lexical reordering fails with zlib
> > > To: moses-support@mit.edu
> > > Message-ID: <loom.20151207t071423-...@post.gmane.org>
> > > Content-Type: text/plain; charset=us-ascii
> > >
> > > Hello everyone,
> > >
> > > I've just recently started to work with Moses and managed to build a 
> > > couple
> > > of models without problems... until now.
> > >
> > > I was training a new system and I got this error when executing
> > > lexical-reordering-score:
> > >
> > > ../mosesdecoder/scripts/../bin/lexical-reordering-score
> > > /local/scratch/train/model/extract.o.sorted.gz 0.5
> > > /local/scratch/train/model/reordering-table. --model "wbe msd
> > > wbe-msd-bidirectional-fe"
> > > Lexical Reordering Scorer
> > > scores lexical reordering models of several types (hierarchical,
> > > phrase-based and word-based-extraction
> > > terminate called after throwing an instance of 'util::GZException'
> > >   what():  util/read_compressed.cc:163 in virtual std::size_t
> > > util::{anonymous}::GZip::Read(void*, std::size_t, util::ReadCompressed&)
> > > threw GZException'.
> > > zlib encountered invalid distances set code -3
> > > Aborted
> > >
> > > I found an old post
> > > (http://permalink.gmane.org/gmane.comp.nlp.moses.user/10151) saying this 
> > > was
> > > due to an apparent bug in zlib 1.2.3.4 on Ubuntu 12.04 and that upgrading 
> > > to
> > > zlib 1.2.8 solves the problem. However, I already have zlib 1.2.8 (but on
> > > Ubuntu 14.04) and I still get this error. In case it helps, package name 
> > > is
> > > zlib1g:amd64 version 1:1.2.8.dfsg-1ubuntu).
> > >
> > > It's a bit strange that I didn't stumble upon this problem when I trained
> > > previous systems.
> > >
> > > Any ideas on what to do?
> > >
> > > Thank you very much,
> > > Guy
> > >
> > >
> > >
> > >
> > > ------------------------------
> > >
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> > >
> > > End of Moses-support Digest, Vol 110, Issue 16
> > > **********************************************
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> > 
> 
> 
> 



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