Hi Daniele
You are correct: it’s just a warning and the plugin was working this whole
time: I just never checked the web interface because I thought it had failed!
Since I am only trying to handle NetCDF3 this is great.
Many thanks
Andy
From: [email protected] [mailto:[email protected]] On Behalf Of
Daniele Romagnoli
Sent: 19 October 2016 15:19
To: Andy Gabey <[email protected]>
Cc: [email protected]
Subject: Re: [Geoserver-users] NetCDF plugin issues
Hi Andy,
note that the specific message you are seeing should be related to a WARNING
reporting that the NetCDF-4 native library is missing.
Which NetCDF format Datasets would you like to handle?
NetCDF3 datasets are handled through simple java code so that you may ignore
that warning being reported by the ucar library about the missing native lib.
In addition GeoServer may support NetCDF4-C (C=Classic) which is a special
format based on HDF5 to provide same data compression and chunking capabilities
of that format, having however same limitations of NetCDF3 data model. Some
more info about the NetCDF4Classic is available here:
http://www.digitalpreservation.gov/formats/fdd/fdd000339.shtml
If you need to handle NetCDF4Classic dataset, or you want to write a NetCDF4-C
output file through WCS2.0, then you need the NetCDF-4 native libraries being
installed on your system. In that case, did you have already taken a look to
the related GeoServer documentation?
http://docs.geoserver.org/2.8.1/user/extensions/netcdf-out/nc4.html
Please, let us know.
Cheers,
Daniele
On Wed, Oct 19, 2016 at 3:06 PM, Andy Gabey
<[email protected]<mailto:[email protected]>> wrote:
Hi all
I’m having trouble getting the NetCDF (for data sources) plugin to work on
Geoserver 2.9.2 (Jetty) under Ubuntu (and also Amazon) Linux. The problem is
always the same: it can’t find the C library. The library is definitely
installed (at /usr/lib/libnetcdf.so), and I’ve even tried compiling my own
version in a home directory but with no success. Is there something simple that
I’m failing to understand?
As well as this, I’ve tried various iterations of the LD_LIBRARY_PATH and
JNA_PATH environment variables (Geoserver picks up changes to the latter as
shown below) but no luck.
Any assistance would be appreciated
Error log from server startup is below:
19 Oct 12:59:14 WARN [serverStartup] - Nc4Iosp: NetCDF-4 C library not present
(jna_path='/usr/lib', libname='netcdf').
java.lang.NoClassDefFoundError: com/sun/jna/Library
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
at
org.eclipse.jetty.webapp.WebAppClassLoader.findClass(WebAppClassLoader.java:510)
at
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:441)
at
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:403)
at ucar.nc2.jni.netcdf.Nc4Iosp.load(Nc4Iosp.java:172)
at ucar.nc2.jni.netcdf.Nc4Iosp.isClibraryPresent(Nc4Iosp.java:196)
at
org.geotools.imageio.netcdf.utilities.NetCDFUtilities.<clinit>(NetCDFUtilities.java:373)
at
org.geotools.imageio.netcdf.NetCDFImageReaderSpi.<clinit>(NetCDFImageReaderSpi.java:123)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
Thanks
Andy
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Italy
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