<html><head></head><body>Hi all,<br>The Dods server started having issues with the 18z run of the models on Tues 6/1.<br><br>I talked to the help desk Wed afternoon and they determined it was part of a broader issue they were having with other servers.<br><br>The issue was resolved in the evening and my scripts received valid data and ran fine with data from the 06z run of the models on Thurs 6/3.<br><br>So I think the issue is resolved. <br>Mark<br><br><div class="gmail_quote">On June 3, 2021 7:45:31 AM PDT, Jeff Chabot <jsc219@gmail.com> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div dir="ltr"><div dir="ltr"><div>Hi Wesley,</div><div><br></div><div>I have emailed the nomads help desk. Once I hear back from them, I will let you know.</div><div><br></div><div>Thanks,</div><div><br></div><div>Jeff<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jun 3, 2021 at 8:10 AM Wesley Ebisuzaki - NOAA Federal <<a href="mailto:wesley.ebisuzaki@noaa.gov">wesley.ebisuzaki@noaa.gov</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><div style="font-size:small">Jeff,</div><div style="font-size:small"><br></div><div style="font-size:small">I get the same error when trying <br></div><div style="font-size:small"><br></div><div style="font-size:small"> sdfopen <a href="https://nomads.ncep.noaa.gov/dods/gfs_0p25/gfs20210603/gfs_0p25_00z" target="_blank">https://nomads.ncep.noaa.gov/dods/gfs_0p25/gfs20210603/gfs_0p25_00z</a></div><div style="font-size:small"><br></div><div style="font-size:small">from grads. When I open</div><div style="font-size:small"><br></div><div style="font-size:small"> <a href="https://nomads.ncep.noaa.gov/dods/gfs_0p25/gfs20210603/gfs_0p25_00z" target="_blank">https://nomads.ncep.noaa.gov/dods/gfs_0p25/gfs20210603/gfs_0p25_00z</a></div><div style="font-size:small"><br></div><div style="font-size:small">from the browser, I get</div><div style="font-size:small"><br></div><div style="font-size:small">GrADS Data Server - info for /gfs_0p25/gfs20210603/gfs_0p25_00z : <a href="http://nomads.ncep.noaa.gov:80/dods/gfs_0p25/gfs20210603/gfs_0p25_00z.dds" target="_blank">dds</a> <a href="http://nomads.ncep.noaa.gov:80/dods/gfs_0p25/gfs20210603/gfs_0p25_00z.das" target="_blank">das</a></div><div style="font-size:small">
<hr><br>
<table><tbody><tr>
<td valign="bottom"><b>OPeNDAP/DODS Data URL:</b>
</td><td valign="bottom"><a href="http://nomads.ncep.noaa.gov:80/dods/gfs_0p25/gfs20210603/gfs_0p25_00z" target="_blank">http://nomads.ncep.noaa.gov:80/dods/gfs_0p25/gfs20210603/gfs_0p25_00z</a></td></tr></tbody></table>
<table>
<tbody>
<tr>
<td colspan="2" valign="Bottom">
<b>Description:</b><br>
</td>
<td colspan="2" valign="Bottom">
GFS 0.25 deg starting from 00Z03jun2021, downloaded Jun 03 04:38 UTC<br>
</td>
</tr>
<tr>
<td colspan="2" valign="Bottom">
<b>Documentation:</b>
</td>
<td colspan="2" valign="Bottom">(none provided)
<br>
</td>
</tr>
<tr>
<td colspan="2" valign="Bottom"><b>Longitude:</b></td>
<td>
<div align="Center">0.00000000000°E to 359.75000000000°E</div>
</td>
<td> (1440 points, avg. res. 0.25°)
</td>
</tr>
<tr>
<td colspan="2" valign="Bottom"><b>Latitude:</b></td>
<td>
<div align="Center">-90.00000000000°N to 90.00000000000°N</div>
</td>
<td> (721 points, avg. res. 0.25°)
</td>
</tr>
<tr>
<td colspan="2" valign="Bottom"><b>Altitude:</b></td>
<td>
<div align="Center">1000.00000000000 to 0.01000000000</div>
</td>
<td> (41 points, avg. res. 25.0)
</td>
</tr>
<tr>
<td colspan="2" valign="Bottom"><b>Time:</b></td>
<td>
<div align="Center">00Z03JUN2021 to 00Z13JUN2021</div>
</td>
<td> (81 points, avg. res. 0.125 days)
</td>
</tr>
<tr>
<td colspan="2" valign="Bottom"><b>Variables:</b><br>
</td>
<td colspan="4"><b>(total of 215)</b></td></tr></tbody></table></div><div style="font-size:small">...</div><div style="font-size:small"><br></div><div style="font-size:small">This shows that (1) the file is available, and (2) I am not being blocked by the server.<br></div><div style="font-size:small">The EMC person who would look at this problem has retired, so you should ask</div><div style="font-size:small">the nomads help desk.</div><div style="font-size:small"><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" id="gmail-m_-7933487031530486517gmail-docs-internal-guid-4356f027-7fff-005e-2449-7d8181bd363c"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"> <a href="https://nomads.ncep.noaa.gov/txt_descriptions/Help_Desk_doc.shtml" target="_blank">https://nomads.ncep.noaa.gov/txt_descriptions/Help_Desk_doc.shtml</a></span></p></div><div style="font-size:small"><br></div><div style="font-size:small">Wesley<br></div><div style="font-size:small"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jun 3, 2021 at 4:09 AM M.Mahakur <<a href="mailto:mmahakur@tropmet.res.in" target="_blank">mmahakur@tropmet.res.in</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:arial,helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><div><div>Probably file(s) not available.<br></div><div>Error.."nc_open failed to open file ...."!<br></div></div><div><br></div><hr id="gmail-m_-7933487031530486517gmail-m_-920388657096814642zwchr"><div><b>From: </b>"Jeff Chabot" <<a href="mailto:jsc219@gmail.com" target="_blank">jsc219@gmail.com</a>><br><b>To: </b>"GrADS Users Forum" <<a href="mailto:gradsusr@gradsusr.org" target="_blank">gradsusr@gradsusr.org</a>><br><b>Sent: </b>Thursday, June 3, 2021 11:56:52 AM<br><b>Subject: </b>[gradsusr] GrADS help with NOMADS server<br></div><div><br></div><div>I am running into two GrADS issues using sdfopen and NOMADS from NCEP.<br><br>Issue 1:<br><br>I am using GrADS to run some models for my website and just recently I<br>have been running into this error:<br><br>syntax error, unexpected WORD_STRING, expecting WORD_WORD<br>context: Error { code = 0; message =<br>"/gfs_0p25/gfs20210603/gfs_0p25_00z is not an available dataset"^;};<br><br>I am using the following sdfopen command:<br><br>sdfopen <a href="https://nomads.ncep.noaa.gov/dods/gfs_0p25/gfs20210603/gfs_0p25_00z" target="_blank">https://nomads.ncep.noaa.gov/dods/gfs_0p25/gfs20210603/gfs_0p25_00z</a><br><br>I have been using that format for years, but just the past few days I<br>have been receiving these errors.<br><br>Issue 2:<br><br>I believe that I am hitting the 120 connections limit despite adding<br>code to adjust for this limit:<br><br>I am now getting this error after defining one variable:<br><br>define precip = apcpsfc/25.4<br><br>gancgrid error: nc_get_vara_double failed; NetCDF: Malformed or<br>inaccessible DAP DATADDS<br>Data Request Error: Error for variable 'apcpsfc'<br> Error ocurred at column 1<br>DEFINE error: Invalid expression.<br>gancgrid error: nc_get_vara_double failed; NetCDF: Malformed or<br>inaccessible DAP DATADDS<br>Data Request Error: Error for variable 'apcpsfc'<br> Error ocurred at column 1<br>DEFINE error: Invalid expression.<br><br>I added a 60 second sleep command between variables to account for<br>your April 20th changes and things worked for a while, and now the<br>above error has returned.<br><br>GrADS code added:<br>say 'Sleep for 60 secs to Prevent Hitting 120 connection limit'<br>'!sleep 60'<br>say 'Continue Processing'<br><br>Any ideas or suggestions on these issues? I had things working after<br>the April 20 NOMADS change, but since June, I have had these errors<br>and my code has stopped working.<br><br>P.S. Does anyone have sample code to check to see if sdfopen or define<br>commands will work and if not tell GrADS to quit so it doesn't waste<br>time creating blank maps?<br><br>Thanks again,<br><br><br>Jeff<br>_______________________________________________<br>gradsusr mailing list<br><a href="mailto:gradsusr@gradsusr.org" target="_blank">gradsusr@gradsusr.org</a><br><a href="http://gradsusr.org/mailman/listinfo/gradsusr" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a><br></div></div></div>_______________________________________________<br>
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</blockquote></div></div>
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</blockquote></div></div>
</blockquote></div><br>-- <br>Thanks <br>Mark Sponsler</body></html>