Merge pull request #2319 from SalesforceCommerceCloud/back-merge-3.9.2

Merge 3.9.2 back to develop

Author: kevinxh

packages/pwa-kit-dev/CHANGELOG.md

@@ -1,6 +1,9 @@
 ## v3.10.0-dev (Feb 18, 2025)
 - Support source map for both client and server on MRT [#240](https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2240)
 
+## v3.9.2 (Mar 07, 2025)
+- Update PWA-Kit SDKs to v3.9.2 [#2304](https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2304)
+
 ## v3.9.1 (Mar 05, 2025)
 - Update PWA-Kit SDKs to v3.9.1 [#2301](https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2301)
 

packages/pwa-kit-react-sdk/CHANGELOG.md

@@ -1,6 +1,9 @@
 ## v3.10.0-dev (Feb 18, 2025)
 - Fix the performance logging util to use the correct delimiter for the server-timing header. [#2225](https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2295)
 
+## v3.9.2 (Mar 07, 2025)
+- Update PWA-Kit SDKs to v3.9.2 [#2304](https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2304)
+
 ## v3.9.1 (Mar 05, 2025)
 - Update PWA-Kit SDKs to v3.9.1 [#2301](https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2301)
 

packages/pwa-kit-runtime/CHANGELOG.md

@@ -1,5 +1,8 @@
 ## v3.10.0-dev (Feb 18, 2025)
 
+## v3.9.2 (Mar 08, 2025)
+- Disable CloudWatch metrics sender retries [#2304](https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2304) 
+
 ## v3.9.1 (Mar 05, 2025)
 - Update PWA-Kit SDKs to v3.9.1 [#2301](https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2301)
 - Remove forced garbage collection on each invocation. Set `FORCE_GC=true` for the old behavior. [#2285](https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2285)

packages/pwa-kit-runtime/src/utils/ssr-server/metrics-sender.js

@@ -52,7 +52,11 @@ export class MetricsSender {
                 apiVersion: '2010-08-01',
                 // The AWS_REGION variable is defined by the Lambda
                 // environment.
-                region: process.env.AWS_REGION || 'us-east-1'
+                region: process.env.AWS_REGION || 'us-east-1',
+                // Setting maxRetries to 0 will prevent the SDK from retrying.
+                // This is necessary because under high load, there will be backpressure
+                // on the Lambda function, and causing severe performance issues (400-500ms latency)
+                maxRetries: 0
             })
         }
         return this._CW