MongooseError: Operation `.deleteOne()` and `.deleteMany()` buffering timed out after 10000ms
Problem
Do you want to request a feature or report a bug? Bug What is the current behavior? Getting MongooseError timeout errors. I have not changed my code, or updated anything and I keep getting this timeout error. I exported my database and ran the same master branch with the same database on another PC and I do not get the error. If the current behavior is a bug, please provide the steps to reproduce. [code block] What is the expected behavior? Simple connection to mongodb, with the console log of "Successfully connected to MongoDB" What are the versions of Node.js, Mongoose and MongoDB you are using? Note that "latest" is not a version.* v16.13.0 node.js, v5.13.12 MongoDB Community Server 5.0.3 (current) Error: [code block]
Error Output
Error timeout errors. I have not changed my code, or updated anything and I keep getting this timeout error. I exported my database and ran the same master branch with the same database on another PC and I
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1 Fix
Increase Mongoose Buffer Timeout for Delete Operations
The MongooseError timeout occurs when the delete operations (`.deleteOne()` or `.deleteMany()`) are unable to complete within the default buffer timeout period of 10000ms. This can happen due to network latency, database load, or connection issues that prevent Mongoose from executing the operation in the expected timeframe.
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- 1
Check MongoDB Connection String
Ensure that the MongoDB connection string is correct and includes the necessary options for connection pooling and timeouts.
javascriptconst mongoose = require('mongoose'); mongoose.connect('mongodb://localhost:27017/yourdbname?connectTimeoutMS=30000&socketTimeoutMS=30000', { useNewUrlParser: true, useUnifiedTopology: true }); - 2
Increase Buffer Timeout
Modify the Mongoose connection options to increase the buffer timeout settings. This will allow Mongoose more time to complete the delete operations before timing out.
javascriptmongoose.connect('mongodb://localhost:27017/yourdbname', { bufferTimeoutMS: 30000 }); - 3
Check Database Load
Monitor the MongoDB server to check for high load or slow queries that might be affecting performance. Use MongoDB Compass or the MongoDB shell to analyze the current operations and their execution times.
javascriptdb.currentOp() - 4
Test Connection Stability
Run a connection stability test to ensure that the application can maintain a stable connection to the MongoDB server. Use a simple script to perform multiple delete operations in a loop and log the results.
javascriptasync function testDelete() { for (let i = 0; i < 100; i++) { await YourModel.deleteOne({ _id: someId }); } } testDelete(); - 5
Review Network Configuration
Check the network configuration and firewall settings to ensure that there are no issues preventing stable communication between the application and the MongoDB server.
bashping your.mongodb.server
Validation
Confirm that the timeout error no longer occurs by running the delete operations again. Additionally, check the MongoDB server logs for any related errors or warnings during the operations.
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Environment
Submitted by
Alex Chen
2450 rep