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Re: FW: Java Error

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  • Subject: Re: FW: Java Error
  • Date: Wed, 04 Feb 2009 09:20:53 -0800
see

http://www.unidata.ucar.edu/software/netcdf-java/reference/HTTPservice.html

David Stuebe wrote:


Hi John

CC Jenn, Guy

I have run into a problem accessing files on HTTP servers using netcdf
Java. I get this error: Server does not support byte Ranges

The strange part is that the error only occurs when accessing the
files from ASA. Specifically when I take my laptop home and make the
same NETCDF JAVA request from my house it works fine. Similarly local
files, or files hosted inside the ASA network are fine. There is
something funny about the fire wall or our service provider but we
can't seem to figure out what. Have you run into this before?

Let me know if you have any ideas

Thanks

David Stuebe

*From:* Jennifer Read
*Sent:* Tuesday, February 03, 2009 10:33 AM
*To:* Jennifer Read; Guy De Wardener
*Cc:* David Stuebe
*Subject:* RE: Java Error

We tested with this address:


http://science.whoi.edu/users/kestons/redtide_2005_hindcast/OUT/avg_gom_0014.nc

using java NetCDF (One ring to bind them).

*From:* Jennifer Read
*Sent:* Tuesday, February 03, 2009 10:22 AM
*To:* Guy De Wardener
*Cc:* David Stuebe
*Subject:* Java Error

So, Dave is getting this error:

java.io.IOException: Server does not support byte Ranges

at


ucar.unidata.io.http.HTTPRandomAccessFile.<init>(HTTPRandomAccessFile.java:123)


at


ucar.unidata.io.http.HTTPRandomAccessFile.<init>(HTTPRandomAccessFile.java:94)


at ucar.nc2.NetcdfFile.getRaf(NetcdfFile.java:441)

at ucar.nc2.NetcdfFile.open(NetcdfFile.java:347)

at
ucar.nc2.dataset.NetcdfDataset.openOrAcquireFile(NetcdfDataset.java:622)

at ucar.nc2.dataset.NetcdfDataset.openFile(NetcdfDataset.java:500)

at ucar.nc2.ui.ToolsUI$NCdumpPanel.run(ToolsUI.java:1214)

at ucar.nc2.ui.ToolsUI$GetDataTask.run(ToolsUI.java:3098)

at java.lang.Thread.run(Unknown Source)

When he tries to connect from inside ASA to another source. It works
outside (at home) and it works inside if hes connecting inside. Im
having him see what happens if he uses wireless and tries to connect.
It isnt a firewall issue- there have been no firewall changes in the
past long time.