[GRASS-dev] [GRASS GIS] #2764: corrupt data written to FCELL and DCELL rasters, hard to re-produce
GRASS GIS
trac at osgeo.org
Sat Jan 6 14:14:09 PST 2018
#2764: corrupt data written to FCELL and DCELL rasters, hard to re-produce
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Reporter: dylan | Owner: grass-dev@…
Type: defect | Status: new
Priority: normal | Milestone: 7.2.3
Component: Raster | Version: unspecified
Resolution: | Keywords:
CPU: x86-64 | Platform: Linux
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Comment (by dylan):
Replying to [comment:20 mmetz]:
> > Could there be a lurking zlib compression bug in the code that only
manifests during parallel invocation, or, when a very large number of rows
are involved?
>
> I don't think so because
> 1. you can't reproduce the error with a SSD
> 2. Markus N can't reproduce the error with a SSD
> 3. I can't reproduce the error with a SSD or an old spinning HDD (no
RAID) or a NAS with spinning disks and software RAID 5
>
> Therefore I guess that something is wrong with your hard drive or there
is a bug in your filesystem driver or there is a bug in your RAID
management/configuration (in case you are still using a software RAID 1
system).
All good points, except that this iteration of errors have all been
encountered while working on an ssd exclusively. Unless of course temp
files are stored outside of the database/mapset.
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Ticket URL: <https://trac.osgeo.org/grass/ticket/2764#comment:21>
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