From 8e9527bd4a0bd6273d0cfa8868d84d27be2c3863 Mon Sep 17 00:00:00 2001
From: Mohsin Zaidi <2236875+smrz2001@users.noreply.github.com>
Date: Wed, 12 Jun 2024 16:53:20 -0600
Subject: [PATCH] fix: append pid to metrics instance identifier (#1227)

---
 src/app.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/app.ts b/src/app.ts
index 5f0f9a5a..ccd3d443 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -126,9 +126,12 @@ export class CeramicAnchorApp {
         this.config.metrics.exportTimeoutMillis
       )
       Metrics.count('HELLO', 1)
-      logger.imp('Metrics exporter started')
+      logger.imp(
+        `Metrics exporter started for instance "${this.config.metrics.instanceIdentifier}" and process ID ${process.pid}`
+      )
       if (this.config.metrics.instanceIdentifier) {
-        Metrics.setInstanceIdentifier(this.config.metrics.instanceIdentifier)
+        // Append the PID to the metrics identifier to ensure uniqueness with clustering
+        Metrics.setInstanceIdentifier(this.config.metrics.instanceIdentifier + '_' + process.pid)
       }
     } catch (e: any) {
       logger.imp('ERROR: Metrics exporter failed to start. Continuing anyway.')