Merge pull request #12044 from overleaf/em-fix-mongo-connection-pool-metrics

Fix Mongo connection pool metrics in web

GitOrigin-RevId: 10de58c5e04a43f2014fbf9cde84d0bbb7daa9ad

services/web/app/src/infrastructure/Mongoose.js

@@ -1,5 +1,6 @@
 const mongoose = require('mongoose')
 const Settings = require('@overleaf/settings')
+const Metrics = require('@overleaf/metrics')
 const logger = require('@overleaf/logger')
 const { addConnectionDrainer } = require('./GracefulShutdown')
 
@@ -20,6 +21,10 @@ const connectionPromise = mongoose.connect(
   Settings.mongo.options
 )
 
+connectionPromise.then(mongooseInstance => {
+  Metrics.mongodb.monitor(mongooseInstance.connection.client)
+})
+
 addConnectionDrainer('mongoose', async () => {
   await connectionPromise
   await mongoose.disconnect()

services/web/app/src/infrastructure/mongodb.js

@@ -1,4 +1,3 @@
-const Metrics = require('@overleaf/metrics')
 const { ObjectId } = require('mongodb')
 const OError = require('@overleaf/o-error')
 const { getNativeDb } = require('./Mongoose')
@@ -23,7 +22,6 @@ async function waitForDb() {
 const db = {}
 async function setupDb() {
   const internalDb = await getNativeDb()
-  Metrics.mongodb.monitor(internalDb)
 
   db.contacts = internalDb.collection('contacts')
   db.deletedFiles = internalDb.collection('deletedFiles')