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SCGDC: update topic subscription #240

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golfvert merged 1 commit into from
Apr 22, 2026
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SCGDC: update topic subscription #240

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4 changes: 2 additions & 2 deletions guide/sections/part3/sensor-centres.adoc
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Expand Up @@ -108,8 +108,8 @@ Metadata content must be identical for all GDCs. The SCGDC verifies this consist

* The SCGDC will connect to a minimum of two Global Brokers.
* The SCGDC subscribes to the metadata topic for all GDCs, by one of the following methods:
** subscribing to ``cache/a/wis2/+/metadata/#``, discarding all Notification Messages whose centre identifier (in the topic) does not end with ``-global-discovery-catalogue``.
** subscribing to each GDC via ``cache/a/wis2/centre-id/metadata/#``.
** subscribing to ``cache/a/wis2/+/metadata``, discarding all Notification Messages whose centre identifier (in the topic) does not end with ``-global-discovery-catalogue``.
** subscribing to each GDC via ``cache/a/wis2/centre-id/metadata``.
* The SCGDC will use the link provided in the WIS2 Notification Message received to download the zip file published by the GDC.
* For each GDC centre identifier, upon successful download of the zip file, the SCGDC will update the metric ``wmo_wis2_scgdc_last_download_timestamp_seconds`` with the timestamp (in seconds) of the last successful download.
* Once a day, the SCGDC will analyze the content of the latest zip files received across all GDCs
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