[gradsusr] Grads/DODS - Access Denied

[Wesley Ebisuzaki - NOAA Federal]

Erik,

   I am not involved with the nomads.ncep.noaa.gov server except as a
user.  Clarissa said that people
who accessed  GDS too frequently got an access denied.  My guess is that IP
addresses that accessed
the GDS server too many times in one minute (my guess) were denied service
for a short period time (5 minutes?).
Your NAM download script may be fine but GFS and RAP scripts are accessing
the data too many times.  My suggestions
are to combine downloads and add some sleep commands into your script.

You might consider using grib-filter.

Wesley







On Mon, Aug 26, 2013 at 12:59 PM, Erik D. Kabela <ekabela at gmail.com> wrote:

> Hi Wesley:  I am noticing another error and it has occurred for both the
> GFS and RAP data (or at least the latest attempts to grab the data).  The
> error (specifically for the GFS) is:
>
> Error: nc_open failed to open file
> http://nomads.ncep.noaa.gov/dods/gfs_hd/gfs_hd20130826/gfs_hd_12z
> NetCDF: Malformed or inaccessible DAP DDS
> gadsdf: Couldn't ingest SDF metadata
>
> Again, the same sort of error occurred for the RAP data.  NAM appears to
> be running normally.
>
> Any help you can provide would be great!
> Thanks!
> Erik
>
>
> On Mon, Aug 26, 2013 at 11:07 AM, Wesley Ebisuzaki - NOAA Federal <
> wesley.ebisuzaki at noaa.gov> wrote:
>
>> Erik,
>>
>> If your problem is with http://nomads.ncep.noaa.gov, then the servers
>> home page says,
>>
>> "Due to unfortunate server failures on 7/5/2013 NCEP had to place
>> customers onto a new NOMADS server that has yet to be optimized. We realize
>> that users have been impacted by this in numerous ways. As we spend the
>> next few weeks tuning the server it will be very helpful if you notify us
>> of any issues that are not within your normal tolerance. Please include the
>> syntax and errors you are seeing to *ncep.pmb.dataflow at noaa.gov"
>> *
>> It's easier for dataflow to fix the problem when they know about it.
>>
>> Wesley
>>
>>
>>
>>
>> On Mon, Aug 26, 2013 at 10:07 AM, Erik D. Kabela <ekabela at gmail.com>wrote:
>>
>>> Hello All:  For about the past 3-4 days my GrADS scripts have been
>>> failing to grab data from the DODS server at NCEP.  The message I receive
>>> (for example) is:
>>>
>>> 403 Forbidden
>>> You don't have permission to access /dods/rap/rap20130826/rap_12z
>>> sdfdeflev: nc_get_vara_double failed to read coordinate axis values
>>>
>>> I'm using GrADS v2.0.a9.  I get a similar error when trying to access
>>> GFS data.
>>>
>>> Any help would be appreciated!
>>>
>>> Thanks!
>>> Erik Kabela
>>>
>>> _______________________________________________
>>> gradsusr mailing list
>>> gradsusr at gradsusr.org
>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>
>>>
>>
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://gradsusr.org/pipermail/gradsusr/attachments/20130826/8d290311/attachment-0003.html