Monitoring: metric history, one edition of metrics, and x:Metric over the stored samples (MON-4 to MON-7, MON-9, MON-17, MON-39)

Every node writes a sample per metric on metricsCollectionInterval:
counters as the increase since its last sample, gauges always, histograms
as totals when changed. Samples are x:Metric in the registry's encoding
under the telemetry key class, ids time-ordered. x:Metric/get and /query
read them with metric and timestamp filters and full paging, hide what's
past holdMetricsFor, and the data purge deletes it. The is_enterprise
split is gone, so every gauge and histogram is collected and exported, and
queue.count is set from the queue itself. The shared metrics suite runs.

crates/jmap/src/registry/get.rs

@@ -380,6 +380,10 @@ impl RegistryGet for Server {
                 spam_sample_get(get).await.map(|get| get.into_response())
             }
             ObjectType::Log => log_get(get).await.map(|get| get.into_response()),
+            // inbuxa: monitoring history (MON-17, MON-31)
+            ObjectType::Metric => crate::inbuxa::telemetry::metric_get(get)
+                .await
+                .map(|get| get.into_response()),
             ObjectType::Bootstrap => bootstrap_get(get).await.map(|get| get.into_response()),
             ObjectType::AccountSettings
             | ObjectType::ApiKey

crates/jmap/src/registry/mod.rs

@@ -17,23 +17,9 @@ pub trait EnterpriseRegistry {
 }
 
 impl EnterpriseRegistry for Server {
-    fn assert_enterprise_object(&self, object_type: ObjectType) -> trc::Result<()> {
-        if !matches!(
-            object_type,
-            ObjectType::Metric
-                | ObjectType::Trace
-        ) {
-            return Ok(());
-        }
-
-
-        // These are the Enterprise features INBUXA hasn't rebuilt yet
-        // (docs/spec/SPEC.md §4). Each type leaves this list when its rebuild
-        // lands. There's no edition to upgrade to, so the message says so.
-        Err(trc::JmapEvent::Forbidden.into_err().details(concat!(
-            "This feature isn't available in ",
-            types::brand!(),
-            " yet."
-        )))
+    // inbuxa: every Enterprise feature is rebuilt (docs/spec/SPEC.md §4), the
+    // last being monitoring (MON-39), so nothing is refused here any more
+    fn assert_enterprise_object(&self, _: ObjectType) -> trc::Result<()> {
+        Ok(())
     }
 }

crates/jmap/src/registry/query.rs

@@ -122,6 +122,15 @@ impl RegistryQuery for Server {
             .await
             .and_then(|response| response.build()),
 
+            // inbuxa: monitoring history (MON-17, MON-31)
+            ObjectType::Metric => crate::inbuxa::telemetry::metric_query(RegistryQueryResponse {
+                server: self,
+                access_token,
+                object_type,
+                request,
+            })
+            .await
+            .and_then(|response| response.build()),
             ObjectType::Log => log_query(RegistryQueryResponse {
                 server: self,
                 access_token,