chore: remove high cardinality histogram metrics for UT

src/legacy/router.js

@@ -644,7 +644,6 @@ if (startDestTransformer) {
       ctx.status = ctxStatusCode;
       ctx.set('apiVersion', API_VERSION);
 
-      stats.timing('user_transform_request_latency', startTime, {});
       stats.timingSummary('user_transform_request_latency_summary', startTime, {});
       stats.increment('user_transform_requests', {});
       stats.histogram('user_transform_output_events', transformedEvents.length, {});

src/services/userTransform.ts

@@ -170,15 +170,7 @@ export class UserTransformService {
             ...getTransformationMetadata(eventsToProcess[0]?.metadata),
           });
         } finally {
-          stats.timing('user_transform_request_latency', userFuncStartTime, {
-            ...metaTags,
-            ...getTransformationMetadata(eventsToProcess[0]?.metadata),
-          });
 
-          stats.timing('user_transform_batch_size', requestSize, {
-            ...metaTags,
-            ...getTransformationMetadata(eventsToProcess[0]?.metadata),
-          });
 
           stats.timingSummary('user_transform_request_latency_summary', userFuncStartTime, {
             ...metaTags,

src/util/customTransformer-v1.js

@@ -98,7 +98,6 @@ async function userTransformHandlerV1(
       ...(events.length && events[0].metadata ? getTransformationMetadata(events[0].metadata) : {}),
     };
     stats.counter('user_transform_function_input_events', events.length, tags);
-    stats.timing('user_transform_function_latency', invokeTime, tags);
     stats.timingSummary('user_transform_function_latency_summary', invokeTime, tags);
   }
 

src/util/customTransformer.js

@@ -259,7 +259,6 @@ async function runUserTransform(
     };
 
     stats.counter('user_transform_function_input_events', events.length, tags);
-    stats.timing('user_transform_function_latency', invokeTime, tags);
     stats.timingSummary('user_transform_function_latency_summary', invokeTime, tags);
   }
 

src/util/openfaas/index.js

@@ -379,7 +379,6 @@ const executeFaasFunction = async (
     };
 
     stats.counter('user_transform_function_input_events', events.length, tags);
-    stats.timing('user_transform_function_latency', startTime, tags);
     stats.timingSummary('user_transform_function_latency_summary', startTime, tags);
   }
 };

src/util/prometheus.js

@@ -839,34 +839,6 @@ class Prometheus {
         ],
       },
       // histogram
-      {
-        name: 'user_transform_request_latency',
-        help: 'user_transform_request_latency',
-        type: 'histogram',
-        labelNames: [
-          'workspaceId',
-          'transformationId',
-          'sourceType',
-          'destinationType',
-          'k8_namespace',
-        ],
-      },
-      {
-        name: 'user_transform_batch_size',
-        help: 'user_transform_batch_size',
-        type: 'histogram',
-        labelNames: [
-          'workspaceId',
-          'transformationId',
-          'sourceType',
-          'destinationType',
-          'k8_namespace',
-        ],
-        buckets: [
-          1024, 102400, 524288, 1048576, 10485760, 20971520, 52428800, 104857600, 209715200,
-          524288000,
-        ], // 1KB, 100KB, 0.5MB, 1MB, 10MB, 20MB, 50MB, 100MB, 200MB, 500MB
-      },
       {
         name: 'creation_time',
         help: 'creation_time',
@@ -917,22 +889,6 @@ class Prometheus {
         labelNames: [],
         buckets: [10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 150, 200],
       },
-      {
-        name: 'user_transform_function_latency',
-        help: 'user_transform_function_latency',
-        type: 'histogram',
-        labelNames: [
-          'identifier',
-          'testMode',
-          'sourceType',
-          'destinationType',
-          'k8_namespace',
-          'errored',
-          'statusCode',
-          'transformationId',
-          'workspaceId',
-        ],
-      },
       // summary
       {
         name: 'user_transform_request_latency_summary',