rel: Prepare 2.9.1 release

CHANGELOG.md

@@ -1,5 +1,15 @@
 # Refinery Changelog
 
+## 2.9.1 2024-12-12
+
+### Fixes
+
+- register OTEL metrics if it's missing (#1456) | [Yingrong Zhao](https://github.com/vinozzZ)
+
+### Maintenance
+
+- call out cache changes and add missing changelog entry (#1454) | [Yingrong Zhao](https://github.com/vinozzZ)
+
 ## 2.9.0 2024-12-03
 
 This release introduces a variety of enhancements and bug fixes. It has two major features: one that improves memory consumption reporting, and one experimental feature for configuring trace locality mode.

RELEASE_NOTES.md

@@ -2,6 +2,11 @@
 
 While [CHANGELOG.md](./CHANGELOG.md) contains detailed documentation and links to all the source code changes in a given release, this document is intended to be aimed at a more comprehensible version of the contents of the release from the point of view of users of Refinery.
 
+## Version 2.9.1
+
+This is a bug fix release and includes the follow change:
+* Registers all metrics during process start up to ensure they record their initial and ongoing values
+
 ## Version 2.9.0
 
 This release has two major features: one that improves memory consumption reporting, and one experimental feature for configuring trace locality mode.

config_complete.yaml

@@ -1083,7 +1083,7 @@ Collection:
     ## Eligible for live reload.
     # ShutdownDelay: 15s
 
-    ## TraceLocalityMode controls how Refinery handles spans that belongs to
+    ## TraceLocalityMode controls how Refinery handles spans that belong to
     ## the same trace in a clustered environment.
     ##
     ## When `concentrated`, Refinery will route all spans that belong to the

metrics.md

@@ -93,6 +93,10 @@ Metrics in this table don't contain their expected prefixes. This is because the
 | queue_time | Histogram | Microseconds | The time spent in the queue before being sent to Honeycomb |
 | _router_proxied | Counter | Dimensionless | the number of events proxied to another refinery |
 | _router_event | Counter | Dimensionless | the number of events received |
+| _router_span | Counter | Dimensionless | the number of spans received |
+| _router_dropped | Counter | Dimensionless | the number of events dropped because the channel was full |
+| _router_nonspan | Counter | Dimensionless | the number of non-span events received |
+| _router_peer | Counter | Dimensionless | the number of spans proxied to a peer |
 | queue_length | Gauge | Dimensionless | number of events waiting to be sent to destination |
 | queue_overflow | Counter | Dimensionless | number of events dropped due to queue overflow |
 | send_errors | Counter | Dimensionless | number of errors encountered while sending events to destination |

tools/convert/metricsMeta.yaml

@@ -300,6 +300,22 @@ hasprefix:
       type: Counter
       unit: Dimensionless
       description: the number of events received
+    - name: _router_span
+      type: Counter
+      unit: Dimensionless
+      description: the number of spans received
+    - name: _router_dropped
+      type: Counter
+      unit: Dimensionless
+      description: the number of events dropped because the channel was full
+    - name: _router_nonspan
+      type: Counter
+      unit: Dimensionless
+      description: the number of non-span events received
+    - name: _router_peer
+      type: Counter
+      unit: Dimensionless
+      description: the number of spans proxied to a peer
     - name: queue_length
       type: Gauge
       unit: Dimensionless

tools/convert/templates/configV2.tmpl

@@ -1078,7 +1078,7 @@ Collection:
     ## Eligible for live reload.
     {{ nonDefaultOnly .Data "ShutdownDelay" "ShutdownDelay" "15s" }}
 
-    ## TraceLocalityMode controls how Refinery handles spans that belongs to
+    ## TraceLocalityMode controls how Refinery handles spans that belong to
     ## the same trace in a clustered environment.
     ##
     ## When `concentrated`, Refinery will route all spans that belong to the