[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[THREDDS #EWU-865844]: Bug report: TDS "joinExisting" aggregates files that (I think) shouldn't be aggregated

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [THREDDS #EWU-865844]: Bug report: TDS "joinExisting" aggregates files that (I think) shouldn't be aggregated
  • Date: Thu, 03 Sep 2015 10:50:23 -0600
Bob,

My apologies for taking so long to respond to your report. 

I agree that this should issue an error, but given that the logic behind the 
aggregations isn't particularly sophisticated, I'm not surprised there's not.

I've opened a ticket on this: https://github.com/Unidata/thredds/issues/168

I'm curious if the FMRC support could be used in this case to handle combining 
the files, but I haven't had time to test this yet.

Thanks for taking the time to report this.

Ryan

> If TDS is asked to "joinExisting" aggregate 2 .nc files that are identical
> (e.g., same dimension and variable names),
> except that one has twice as many lat and lon values (2x the resolution)
> and thus 4x as many data values, TDS will aggregate the files (as far as I
> know, without throwing an error message) and present the dataset to users.

Ticket Details
===================
Ticket ID: EWU-865844
Department: Support THREDDS
Priority: Urgent
Status: Closed