[mkgmap-dev] Exception in thread "main" java.lang.ArithmeticException: / by zero

Sun Dec 12 15:02:31 GMT 2021

Hi Gerd,
I removed the overflow patch v2, as well as updated to the latest version
on svn - and now it compiled fine (not sure which of these changes made the
difference)

thanks for the support.
Felix

On Fri, 10 Dec 2021 at 16:10, Gerd Petermann <
gpetermann_muenchen at hotmail.com> wrote:

> Hi Felix,
>
> There are various problems with large (> 2GB) MDR files.
> I don't know if this is a special problem with the index or with one of
> the routines that copies the data.
>
> I see e.g. a *_mdr.img file > 2G that looks not bad but the corresponding
> gmapi folder shows a file with 0 bytes.
>
> Just starting to understand that part of the program ...
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von
> Felix Hartmann <extremecarver at gmail.com>
> Gesendet: Freitag, 10. Dezember 2021 13:10
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] Exception in thread "main"
> java.lang.ArithmeticException: / by zero
>
> okay - I will remove the patch again. Yes I was still using it. Still I
> will need to wait for tomorrow to start analysing it again.
>
> On Fri, 10 Dec 2021 at 12:57, Gerd Petermann <
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com>>
> wrote:
> Hi Felix,
>
> I think a lot of things can go wrong when sizes reach the 2G barrier.
> Don't use the overflow2.patch, it might be part of this problem.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>> im Auftrag von Felix Hartmann <
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>
> Gesendet: Freitag, 10. Dezember 2021 12:35
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] Exception in thread "main"
> java.lang.ArithmeticException: / by zero
>
> Ah okay, it's about gmapsupp.img - right now my server is busy, but I will
> see if I can find an offending tile or if there are some size limits. And
> yeah the data again is pretty big. But RAM should not matter if there is no
> Index I thought.
>
> I will check it tomorrow - at least i know a bit what to look for.
>
> On Fri, 10 Dec 2021, 09:37 Gerd Petermann <gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com>>>
> wrote:
> Hi Felix,
>
> I try to reproduce the problem with the block calculation by adding
> nonsense strings to Mdr 15.
> Maybe this helps to find out what's wrong in a reasonable time without
> crashing my own disk ;)
>
> I probably cannot reproduce real size problems because I have only 8G real
> memory in my PC.
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>> im Auftrag von Gerd Petermann <
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>>>
> Gesendet: Freitag, 10. Dezember 2021 08:38
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] Exception in thread   "main"
> java.lang.ArithmeticException: / by zero
>
> Hi Felix,
>
> looks like another problem with the calculation of blocksizes, this time a
> value of 0 is returned instead of a negative one.
> The error occurs while the gmapsupp.img is written, the routine that fails
> is called for each sub file.
> Is it possible to share the input data and style?
> If not I can try to add logging statements.
>
> Gerd
>
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>> im Auftrag von Felix Hartmann <
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>
> Gesendet: Donnerstag, 9. Dezember 2021 16:31
> An: Development list for mkgmap
> Betreff: [mkgmap-dev] Exception in thread "main"
> java.lang.ArithmeticException: / by zero
>
> Any idea what is going wrong here?
> I think the result is actually okay...
>
> Command:
> C:\openmtbmap\maps>start /belownormal /b /wait java -jar
> -XX:+AggressiveHeap -XX:StringTableSize=1000003 -Xmx43000M
> C:\openmtbmap\mkgmap.jar --max-jobs=12 --order-by-decreasing-area
> --code-page=65001 "--style-file=C:\openmtbmap\buildings_style"
> --lower-case --levels="0:24, 1:23, 2:22, 3:21" --ignore-osm-bounds
> --ignore-turn-restrictions --merge-lines --allow-reverse-merge
> --transparent --draw-priority=28 --remove-ovm-work-files=true
> --add-pois-to-areas --simplify-polygons=23:4,22:7,21:8
> --copyright-file="C:\openmtbmap\openmtbmap_svn\copyrightopm.txt"
> --license-file="C:\openmtbmap\openmtbmap_svn\licenseopm.txt"
> --add-boundary-nodes-at-admin-boundaries=2
> --poi-excl-index=0x6405,0x4316,0x2f00 --ignore-fixme-values
> --polygon-size-limits="24:16, 23:14, 22:12, 21:11"
> --ignore-turn-restrictions --description=velobuildings_eu
> --remove-ovm-work-files= --country-abbr=eu --country-name=europe
> --mapname=86900310 --family-id=8690 --product-id=1
> --series-name="buildings_europe_09.12.2021_UC_LOCAL
>  " --keep-going --family-name="velobuildings_eu_09.12.2021_UC_LOCAL"
> --tdbfile --x-gmapi-minimal --gmapsupp --overview-mapname=mapsetb
> --area-name="europe_09.12.2021_UC_LOCAL_buildings" -c
> D:\openmtbmap\maps\template.europeb1 8690*.img buildeu.typ  1>NUL
>
>
> Mkgmap version 4827M
> Time started: Thu Dec 09 12:50:49 CET 2021
> Number of MapFailedExceptions: 0
> SEVERE (OverviewBuilder): Tile selection (0x4a) polygon for tile 86900000
> cannot be written in level 0 resolution 21, using 19 instead
>
> ........
> skipped here
> .......
>
> gmapi-minimal: Skipping file 86900308.img
> gmapi-minimal: Skipping file 86900309.img
> gmapi-minimal: Writing freshly compiled file
> C:\openmtbmap\maps\.\86900310.img
> gmapi-minimal: Writing freshly compiled file
> C:\openmtbmap\maps\.\86900311.img
> Exception in thread "main" java.lang.ArithmeticException: / by zero
>         at uk.me.parabola.imgfmt.sys.FileNode.write(FileNode.java:239)
>         at
> uk.me.parabola.imgfmt.app.BufferedImgFileWriter.sync(BufferedImgFileWriter.java:77)
>         at
> uk.me.parabola.imgfmt.app.BufferedImgFileWriter.close(BufferedImgFileWriter.java:106)
>         at uk.me.parabola.imgfmt.sys.FileNode.close(FileNode.java:107)
>         at uk.me.parabola.imgfmt.sys.ImgFS.sync(ImgFS.java:253)
>         at uk.me.parabola.imgfmt.sys.ImgFS.close(ImgFS.java:325)
>         at uk.me.parabola.imgfmt.Utils.closeFile(Utils.java:191)
>         at
> uk.me.parabola.mkgmap.combiners.GmapsuppBuilder.onFinish(GmapsuppBuilder.java:187)
>         at uk.me.parabola.mkgmap.main.Main.endOptions(Main.java:690)
>         at
> uk.me.parabola.mkgmap.CommandArgsReader.readArgs(CommandArgsReader.java:126)
>         at uk.me.parabola.mkgmap.main.Main.mainStart(Main.java:147)
>         at uk.me.parabola.mkgmap.main.Main.main(Main.java:118)
>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
>
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>
>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
>
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk
> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>

-- 
Felix Hartman - Openmtbmap.org & VeloMap.org
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