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Best strategy for long-time series
I would like to serve with LAS a long time series of SST maps over
atlantic : we have up to 8 maps/a day (every 3 hours but some are
sometimes missing). This time series is daily updated with new maps. So
far, we have more than 4500 netCDF map files to serve.
I tried to serve them through a DODS aggregated server and set up the
LAS (v6.0) to access the data through this DODS server. But it appears
then that the first access to a map (actually the first access to a DODS
dataset) is really slow, exceeding the LAS default time-out. This is
because (I guess) each time the DODS catalog is updated, a DODS dataset
has to be re-aggregated and this first step is very time-consumming.
My question is : is DODS the best strategy to serve a long time-series
through LAS? It seems that a Ferret descriptor file can't be used here
since it is limited to 500 files. What other strategy? I guess many
people have already experienced this problem...
regards
Jean-francois Piolle
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Jean-Francois PIOLLE
CERSAT French ERS Processing and Archiving Facility
IFREMER
BP70
29280 Plouzane
FRANCE
Tel.: (+33) 2 98 22 46 91 email: jfpiolle@ifremer.fr
Fax: (+33) 2 98 22 45 33 WWW: http://www.ifremer.fr/cersat
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