[ncl-talk] Reopening an old trouble ticket: OPeNDAP failing when reading a large number of files [SEC=UNCLASSIFIED]

[Griffith Young]

The file does not exist according to the log (404).

2017-09-20T02:52:12.951 +0000 [1841685452][ 123718] INFO - threddsServlet - Request Completed - 404 - -1 - 491915

Additionally, I did not get a response when I clicked on your link.

As to why that might be, I cannot answer that part.

Hope this helps.

Griff.

From: ncl-talk [mailto:ncl-talk-bounces at ucar.edu] On Behalf Of Capehart, William J
Sent: Wednesday, 20 September 2017 1:31 PM
To: ncl-talk at ucar.edu
Subject: [ncl-talk] Reopening an old trouble ticket: OPeNDAP failing when reading a large number of files


I am having the same issue that Jon Meyer had a few years ago.  His original post is linked here.
http://mailman.ucar.edu/pipermail/ncl-talk/2015-June/thread.html#2853


To repeat the problem, I have a large number of OPeNDAP files that we’re trying help my remote students access.

After reading a large number of files (I don’t have a specific answer but it’s less than the magic 1024 value and seems to hover around 240 files) via the server I get the same error message.

Cannot create cookie file
CURL Error: Couldn't resolve host name
curl error details:
fatal:Could not open (http://kyrill.ias.sdsmt.edu:8080/thredds/dodsC/BWW_GENS/2017/03/04/gens003_WRFRAP_ALL_2017-03-04_18.wrf_ci_turb.grib2)
fatal:Either file (f) isn't defined or variable (Geopotential_height_isobaric_ens) is not a variable in the file
fatal:["Execute.c":8640]:Execute: Error occurred at or near line 282 in file read_z500_ensembles_from_thredds.ncl


We are using the delete(f) to release the file units and also are using the setfileoption("grib2", "SuppressClose", False) command

I also have the log files from our THREDDS server (linked below).

https://gist.github.com/wjcapehart/46d3f594d223f9b8bb2c6e577a3ecaad

Hopefully, this will give the NCL or THREDDS or Tomcat people an idea of what is going on with this problem.

Cheers-n-Thanks
------------------------------------------------
Bill Capehart <William.Capehart at sdsmt.edu<mailto:William.Capehart at sdsmt.edu>>
Atmospheric and Environmental Sciences Program Coordinator
Civil and Environmental Engineering
201 Mineral Industries Building
South Dakota School of Mines and Technology
501 East St Joseph Street
Rapid City, SD 57701-3995
Ph: +1-605-394-1994   Mobile: +1-605-484-5692


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