[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[THREDDS #SYD-491615]: TDS java exception "java.lang.NegativeArraySizeException" for large netcdf

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [THREDDS #SYD-491615]: TDS java exception "java.lang.NegativeArraySizeException" for large netcdf
  • Date: Wed, 21 May 2014 11:33:09 -0600
Hi Luke:

There are likely error messages in threddsServlet.log in content/thredds/logs
Can you find them and send to us? These logs rollover every hour, so make sure 
the log includes one of the failures. thanks.

John



> Hi Luke,
> 
> I'm pulling down the new files now.  Can you send me your current
> catalog.xml and threddsConfig.xml files?  I'll throw everything back in
> the debugger.
> 
> Thanks,
> Lansing
> 
> On 5/20/2014 6:55 PM, Luke Sheneman wrote:
> > New Client Reply: TDS java exception "java.lang.NegativeArraySizeException" 
> > for large netcdf
> >
> >
> > Hi Katherine -
> >
> > I was looking at THREDDS today and started poking around with your new
> > test files.   Basically none of your new test files work with OPeNDAP in
> > THREDDs.
> >
> > The test files are here:
> >
> > http://thredds1.nkn.uidaho.edu:8080/thredds/catalog/NWCSC_INTEGRATED_SCENARIOS_ALL_CLIMATE/macav2livneh/TEST/catalog.html
> >
> > Some observations:
> >
> >       1)  the first file seems to be artificially truncated at 2.647GB
> > (macav2livneh_nocompress_tasmax_CSIRO-Mk3-6-0_historical_1980_1989_CONUS.nc)
> >
> >
> > THREDDs throws this exception when trying to access it via OPeNDAP:
> >
> >       Error {
> >       code = 500;
> >       message = "java.io.IOException: File is truncated should be=
> > 5981730804 actual = 2647130112";
> > };
> >
> >
> >
> > All of the other files all seem to generate one of two THREDDs Java
> > exceptions:
> >
> >       java.lang.NegativeArraySizeException
> >       java.lang.OutOfMemoryError: Java heap space
> >
> > I just doubled the memory I allocate for thredds using these start
> > params:   -Xmx16384m -Xms16384m
> >
> > But it looks like things are still broken.   Again, this looks like a
> > problem with THREDDs itself or a problem with how you are generating the
> > NetCDFs.    The fact that one can open these NetCDFs in other tools
> > seems to indicate to me that this is a problem with THREDDs itself.
> >
> > I will focus on this for the remainder of the week, and hopefully we can
> > make some headway.
> >
> >
> > Thanks,
> >     -Luke
> >
> >
> > --
> >
> > Luke Sheneman, Ph.D
> > Technology and Data Services Manager
> > Northwest Knowledge Network (NKN) / University of Idaho
> > http://www.northwestknowledge.net
> >
> > address@hidden
> > Office: 208.885.4228   Mobile: 208.669.2248


Ticket Details
===================
Ticket ID: SYD-491615
Department: Support THREDDS
Priority: Emergency
Status: Open