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With daily exports of observed data per area, the number of small datasets on the file system may increases quickly. This has several disadvantages as the harvesting process will take longer processing many small datasets, while the performance of seamless integration (and webservices) will also drop. Therefore, an amalgamate process is developed which merges the daily observation files into one observation file per month. Currently, this amalgamate process is executed from the Fews-application side by an FSS by using the following configuration. Specify the relativePeriod in such way that the observed datafiles are stable and are not updated anymore. E.g. use oen one or two montsh months of delay
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<?xml version="1.0" encoding="UTF-8"?>
<exportArchiveModule xmlns="http://www.wldelft.nl/fews" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.wldelft.nl/fews http://fews.wldelft.nl/schemas/version1.0/exportArchiveModule.xsd">
<amalgamateObserved>
<general>
<archiveFolder>$ARCHIVE_FOLDER$</archiveFolder>
<relativePeriod unit="day" start="-62" end="-31"></relativePeriod>
</general>
<activities>
<amalgamateObservedData>
<areaId>$BASIN$</areaId>
</amalgamateObservedData>
</activities>
</amalgamateObserved>
</exportArchiveModule>
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