Thank you all for the quick response and metric information. This is
very helpful to me!
It might be interesting if someone (I don't want to pawn this off on
anyone, but also don't want to step on the toes of those who put in the
blood, sweat and beers to get OPeNDAP where it is today) were to perform
a wider survey of OPeNDAP usage and publish it for a conference or
peer-reviewed article that people can point to.
Such a reference would be very helpful to those considering implementing
but needing justification - as well as documenting the contribution to
the science & engineering community.
Thanks again all!
-kevin.
On 6/4/13 12:54 PM, Dan Swank - NOAA Affiliate wrote:
Here are (just a few snippets) of relevant
usage statistics from NCDC-NOMADS Archive component.
They do not give an indication of how many individual users are
at work, but does give a good idea of OpenDap vs. traditional access.
NCDC-NOMADS May 2013 Analog statistics
Hits % Volume TB % Service
10259444 48.01% 10.63 21.57% /thredds/ (all TDS services)
9943808 46.53% 0.79 1.60% /thredds/dodsC/ (TDS OpenDap)
1631954 7.64% 0.15 0.30% /dods/ (Grads Data Server)
8118950 37.99% 23.76 48.21% /data/ (traditional http
requests - for comparison)
April 2013
7581441 56.16% 4.38 11.21% /thredds/
7416075 54.94% 3.40 8.70% /thredds/dodsC/
1716337 12.71% 0.11 0.28% /dods/
2504387 18.55% 20.26 51.89% /data/
March 2013
6184103 61.20% 2.46 5.73% /thredds/
5973183 59.11% 2.11 4.91% /thredds/dodsC/
547964 5.42% 0.16 0.37% /dods/
2375084 23.50% 28.05 65.38% /data/
May 2012 ( ~ one year ago)
2424201 42.04% 4.31 11.34% /thredds/
2271218 39.38% 0.89 2.35% /thredds/dodsC/
44952 0.78% 0.00 0.01% /dods/
1949800 33.81% 17.03 44.82% /data/
May 2011 (3 years ago)
1115187 24.57% 0.15 0.58% /thredds/
793331 17.48% 0.12 0.48% /thredds/dodsC/
441543 9.73% 0.01 0.03% /dods/
2473671 54.50% 16.18 63.46% /data/
On Tue, Jun 4, 2013 at 2:27 PM, Bob Simons - NOAA Federal
<bob.simons@xxxxxxxx <mailto:bob.simons@xxxxxxxx>> wrote:
NOAA/NMFS/SWFSC/ERD serves about 400 GB of data per month via
OPeNDAP (THREDDS and ERDDAP).
ERD servers often get 8,000,000 hits (page requests and service
requests) per month.
ERD's record number of hits in an hour is 447238 (which is 124
hits per second).
ERD data services are accessed by about 20,000 unique IP addresses
each month.
On 2013-06-04 10:01 AM, Kevin Manross wrote:
Greetings!
I'm interested in getting a feel for how widely or frequently used
OPeNDAP is in the scientific community (or even just the
atmospheric
sciences). I've been searching for most of the morning and am
struggling to find any (recent) articles that discuss just how
much
OPeNDAP is used from a client standpoint.
I see statements that there is a broad community of OPeNDAP
users, but
it would be nice to see if there are data or references to
support this
claim. If no such references exist, I would be very interested in
hearing experiential or anecdotal accounts from data providers
or users
on this list with regard to OPeNDAP usage.
Many thanks!
-kevin.
--
Kevin Manross
NCAR/CISL/Data Support Section
Phone: (303)-497-1218 <tel:%28303%29-497-1218>
Email:manross@xxxxxxxx <mailto:Email%3Amanross@xxxxxxxx>
<mailto:manross@xxxxxxxx <mailto:manross@xxxxxxxx>>
Web:http://rda.ucar.edu
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Sincerely,
Bob Simons
IT Specialist
Environmental Research Division
NOAA Southwest Fisheries Science Center
1352 Lighthouse Ave
Pacific Grove, CA 93950-2079
Phone: (831)658-3205 <tel:%28831%29658-3205>
Fax: (831)648-8440 <tel:%28831%29648-8440>
Email: bob.simons@xxxxxxxx <mailto:bob.simons@xxxxxxxx>
The contents of this message are mine personally and
do not necessarily reflect any position of the
Government or the National Oceanic and Atmospheric
Administration.
<>< <>< <>< <>< <>< <>< <>< <>< <><
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=======================================
Dan Swank
NCDC-NOMADS Project
Team ERT/STG
(NCDC Government Contractor)
Data Access & Applications Branch
Veach-Baley Federal Building
151 Patton Avenue
Asheville, NC 28801-5001
Email: Dan.Swank@xxxxxxxx <mailto:Dan.Swank@xxxxxxxx>
Phone: 828-271-4007
============================================
Any opinions expressed in this message are mine personally and
do not represent any position from STG, ERT, NCDC, or NOAA
============================================
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Kevin Manross
NCAR/CISL/Data Support Section
Phone: (303)-497-1218
Email:manross@xxxxxxxx <mailto:manross@xxxxxxxx>
Web:http://rda.ucar.edu
