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<div>Hi Wesley and all,</div>
<div><font face="tahoma"></font> </div>
<div><font face="tahoma">Just FYI, I too have been experiencing the same problem with the same error message as Erik since last Friday (and intermittently since all the NOMADS issues began a few months ago). I only access the GFS and global ensemble data about
once a day at the most and the problem still occurs, even using different computers with different IP addresses. It also doesn't affect all variables, just certain ones such as RHPRS. I've already posted this info to the
<font color="#3f52b8"><a href="mailto:ncep.pmb.dataflow@noaa.gov">ncep.pmb.dataflow@noaa.gov</a> </font><font color="#000000"> list.</font></font></div>
<div><font face="tahoma"></font> </div>
<div><font face="tahoma">Ken.</font></div>
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<font size="2" face="Tahoma"><b>From:</b> gradsusr-bounces@gradsusr.org [gradsusr-bounces@gradsusr.org] On Behalf Of Wesley Ebisuzaki - NOAA Federal [wesley.ebisuzaki@noaa.gov]<br>
<b>Sent:</b> Tuesday, 27 August 2013 4:27 AM<br>
<b>To:</b> GrADS Users Forum<br>
<b>Subject:</b> Re: [gradsusr] Grads/DODS - Access Denied<br>
</font><br>
</div>
<div></div>
<div>Erik,<br>
<br>
I am not involved with the <a href="http://nomads.ncep.noaa.gov" target="_blank">
nomads.ncep.noaa.gov</a> server except as a user. Clarissa said that people<br>
who accessed GDS too frequently got an access denied. My guess is that IP addresses that accessed<br>
the GDS server too many times in one minute (my guess) were denied service for a short period time (5 minutes?).<br>
Your NAM download script may be fine but GFS and RAP scripts are accessing the data too many times. My suggestions<br>
are to combine downloads and add some sleep commands into your script.<br>
<br>
You might consider using grib-filter.<br>
<br>
Wesley<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<div class="gmail_quote">On Mon, Aug 26, 2013 at 12:59 PM, Erik D. Kabela <span dir="ltr">
<<a href="mailto:ekabela@gmail.com">ekabela@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div dir="ltr">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:
<div><br>
</div>
<div>Error: nc_open failed to open file <a href="http://nomads.ncep.noaa.gov/dods/gfs_hd/gfs_hd20130826/gfs_hd_12z" target="_blank">
http://nomads.ncep.noaa.gov/dods/gfs_hd/gfs_hd20130826/gfs_hd_12z</a></div>
<div>NetCDF: Malformed or inaccessible DAP DDS</div>
<div>gadsdf: Couldn't ingest SDF metadata</div>
<div><br>
</div>
<div>Again, the same sort of error occurred for the RAP data. NAM appears to be running normally.</div>
<div><br>
</div>
<div>Any help you can provide would be great!</div>
<div>Thanks!</div>
<div>Erik</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Mon, Aug 26, 2013 at 11:07 AM, Wesley Ebisuzaki - NOAA Federal
<span dir="ltr"><<a href="mailto:wesley.ebisuzaki@noaa.gov">wesley.ebisuzaki@noaa.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
Erik,<br>
<br>
If your problem is with <a href="http://nomads.ncep.noaa.gov" target="_blank">http://nomads.ncep.noaa.gov</a>, then the servers home page says,<br>
<br>
"<font size="+0">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
<b><a href="mailto:ncep.pmb.dataflow@noaa.gov">ncep.pmb.dataflow@noaa.gov</a>"<br>
</b></font><br>
It's easier for dataflow to fix the problem when they know about it.<br>
<br>
Wesley<br>
<div class="gmail_quote">
<div>
<div><br>
<br>
<br>
<br>
On Mon, Aug 26, 2013 at 10:07 AM, Erik D. Kabela <span dir="ltr"><<a href="mailto:ekabela@gmail.com">ekabela@gmail.com</a>></span> wrote:<br>
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<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div>
<div>
<div dir="ltr">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:
<div><br>
</div>
<div>403 Forbidden</div>
<div>You don't have permission to access /dods/rap/rap20130826/rap_12z</div>
<div>sdfdeflev: nc_get_vara_double failed to read coordinate axis values</div>
<div><br>
</div>
<div>I'm using GrADS v2.0.a9. I get a similar error when trying to access GFS data.</div>
<div><br>
</div>
<div>Any help would be appreciated!</div>
<div><br>
</div>
<div>Thanks!</div>
<span><font color="#888888">
<div>Erik Kabela</div>
</font></span></div>
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