diff --git a/vsellier/plantuml/T2912-counters/counters-with-archive.plantuml b/vsellier/plantuml/T2912-counters/counters-with-archive.plantuml
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+++ b/vsellier/plantuml/T2912-counters/counters-with-archive.plantuml
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+@startuml
+title Object counters pipeline, with archive
+
+actor browser
+
+node pergamon {
+    database prometheus
+    component prometheus_server
+
+    prometheus_server --> prometheus
+
+}
+
+node moma {
+    component webapp
+}
+
+node "storage(saam|storage1)" as storage_server {
+    component "swh-storage" as swhstoragegunicorn
+}
+
+
+node counters {
+    component redis {
+        collections "HyperLogLog collections" as hll
+        note left of hll: One collection per\nobject type
+    }
+
+    component counter_journal_client as cjc {
+    }
+    component counter as gunicorncounter {
+        boundary "/metrics" as metrics
+        boundary "/counter?type=<type>" as counterapi
+        boundary "/counter_history/refresh_cache?\nfile=<name>&counters=<list>" as refresh_cache
+        boundary "/counter_history/<cache file>" as  counters_history
+    }
+
+    component nginx {
+        boundary 50XX as counter
+    }
+
+    component cron as counters_cron {
+    }
+
+    file "/usr/local/share/swh-data/archive.json" as archive_json
+    file "/usr/local/share/swh-data/counters.json" as counters_json
+
+    cjc --> hll
+    counter --> metrics
+    counter --> counterapi
+    gunicorncounter --> hll
+    
+    refresh_cache --> counters_json: generate\ncache\nfile
+    refresh_cache --> archive_json: read\narchive\nfile
+
+    counters_history --> counters_json: read\ncached\ndata
+    counter --> counters_history
+    counter --> refresh_cache
+
+    counters_cron -left-> counter: curl\n/counter_history/refresh_cache?\nfile=counters.json&\ncounters=<list>
+    note left of counters_cron: Refresh the cache file periodically
+
+}
+
+node journal {
+    queue content as topic_content
+    queue origin as topic_origin
+    queue revision as topic_revision
+    queue "..." as topic_others
+    topic_others -[hidden]right-> topic_revision
+}
+
+webapp --> counter: /api/1/stat/counters\n->\n/counter/<type>
+browser --> webapp
+
+topic_content --> cjc
+topic_origin --> cjc
+topic_revision --> cjc
+topic_others --> cjc
+
+swhstoragegunicorn --> topic_content
+swhstoragegunicorn --> topic_origin
+swhstoragegunicorn --> topic_revision
+swhstoragegunicorn --> topic_others
+
+prometheus_server --> counter : /metrics
+refresh_cache --> prometheus_server: Read live data
+webapp --> counter: /counter_history/<cache file>
+
+
+@enduml
diff --git a/vsellier/plantuml/T2912-counters/counters-with-archive.png b/vsellier/plantuml/T2912-counters/counters-with-archive.png
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