Fix duplicate metric labels (#518)

rust/abacus-base/src/contract_sync/metrics.rs

@@ -24,7 +24,7 @@ impl ContractSyncMetrics {
             .new_int_gauge(
                 "contract_sync_block_height",
                 "Height of a recently observed block",
-                &["data_type", "contract_name", "agent"],
+                &["data_type", "contract_name"],
             )
             .expect("failed to register block_height metric");
 
@@ -32,7 +32,7 @@ impl ContractSyncMetrics {
             .new_int_gauge(
                 "contract_sync_stored_events",
                 "Number of events stored into db",
-                &["data_type", "contract_name", "agent"],
+                &["data_type", "contract_name"],
             )
             .expect("failed to register stored_events metric");
 
@@ -40,7 +40,7 @@ impl ContractSyncMetrics {
             .new_int_counter(
                 "contract_sync_missed_events",
                 "Number of unique occasions when agent missed an event",
-                &["data_type", "contract_name", "agent"],
+                &["data_type", "contract_name"],
             )
             .expect("failed to register missed_events metric");
 

rust/abacus-base/src/contract_sync/mod.rs

@@ -30,7 +30,6 @@ const MESSAGES_LABEL: &str = "messages";
 /// db up-to-date.
 #[derive(Debug)]
 pub struct ContractSync<I> {
-    agent_name: String,
     contract_name: String,
     db: AbacusDB,
     indexer: Arc<I>,
@@ -41,7 +40,6 @@ pub struct ContractSync<I> {
 impl<I> ContractSync<I> {
     /// Instantiate new ContractSync
     pub fn new(
-        agent_name: String,
         contract_name: String,
         db: AbacusDB,
         indexer: Arc<I>,
@@ -49,7 +47,6 @@ impl<I> ContractSync<I> {
         metrics: ContractSyncMetrics,
     ) -> Self {
         Self {
-            agent_name,
             contract_name,
             db,
             indexer,
@@ -86,23 +83,23 @@ where
 
         let db = self.db.clone();
         let indexer = self.indexer.clone();
-        let indexed_height = self.metrics.indexed_height.clone().with_label_values(&[
-            MESSAGES_LABEL,
-            &self.contract_name,
-            &self.agent_name,
-        ]);
-
-        let stored_messages = self.metrics.stored_events.clone().with_label_values(&[
-            MESSAGES_LABEL,
-            &self.contract_name,
-            &self.agent_name,
-        ]);
-
-        let missed_messages = self.metrics.missed_events.clone().with_label_values(&[
-            MESSAGES_LABEL,
-            &self.contract_name,
-            &self.agent_name,
-        ]);
+        let indexed_height = self
+            .metrics
+            .indexed_height
+            .clone()
+            .with_label_values(&[MESSAGES_LABEL, &self.contract_name]);
+
+        let stored_messages = self
+            .metrics
+            .stored_events
+            .clone()
+            .with_label_values(&[MESSAGES_LABEL, &self.contract_name]);
+
+        let missed_messages = self
+            .metrics
+            .missed_events
+            .clone()
+            .with_label_values(&[MESSAGES_LABEL, &self.contract_name]);
 
         let message_leaf_index = self.metrics.message_leaf_index.clone();
 
@@ -519,7 +516,6 @@ mod test {
             let sync_metrics = ContractSyncMetrics::new(metrics, None);
 
             let contract_sync = ContractSync::new(
-                "agent".to_owned(),
                 "outbox_1".to_owned(),
                 abacus_db.clone(),
                 indexer.clone(),
@@ -822,7 +818,6 @@ mod test {
             let sync_metrics = ContractSyncMetrics::new(metrics, None);
 
             let contract_sync = ContractSync::new(
-                "agent".to_owned(),
                 "outbox_1".to_owned(),
                 abacus_db.clone(),
                 indexer.clone(),

rust/abacus-base/src/inbox.rs

@@ -50,14 +50,12 @@ impl CachingInbox {
     /// data
     pub fn sync(
         &self,
-        agent_name: String,
         index_settings: IndexSettings,
         metrics: ContractSyncMetrics,
     ) -> Instrumented<JoinHandle<Result<()>>> {
         let span = info_span!("InboxContractSync", self = %self);
 
         let sync = ContractSync::new(
-            agent_name,
             String::from_str(self.inbox.name()).expect("!string"),
             self.db.clone(),
             self.indexer.clone(),

rust/abacus-base/src/outbox.rs

@@ -57,14 +57,12 @@ impl CachingOutbox {
     /// data
     pub fn sync(
         &self,
-        agent_name: String,
         index_settings: IndexSettings,
         metrics: ContractSyncMetrics,
     ) -> Instrumented<JoinHandle<Result<()>>> {
         let span = info_span!("OutboxContractSync", self = %self);
 
         let sync = ContractSync::new(
-            agent_name,
             String::from_str(self.outbox.name()).expect("!string"),
             self.db.clone(),
             self.indexer.clone(),

rust/agents/relayer/src/relayer.rs

@@ -86,11 +86,9 @@ impl Relayer {
         let outbox_name = outbox.name();
         let sync_metrics =
             ContractSyncMetrics::new(self.metrics(), Some(&["dispatch", outbox_name, "unknown"]));
-        let sync = self.outbox().sync(
-            Self::AGENT_NAME.to_string(),
-            self.as_ref().indexer.clone(),
-            sync_metrics,
-        );
+        let sync = self
+            .outbox()
+            .sync(self.as_ref().indexer.clone(), sync_metrics);
         sync
     }