# mongoDB node connection problem

**URL:** https://discourse.nodered.org/t/mongodb-node-connection-problem/36608
**Category:** General
**Created:** [27 November 2020 06:13 UTC](https://discourse.nodered.org/t/mongodb-node-connection-problem/36608 "2020-11-27T06:13:20Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![sys4cad](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/sys4cad/32/28980_2.png) [@sys4cad](https://discourse.nodered.org/u/sys4cad)
#### Post date: [27 November 2020 06:13 UTC](https://discourse.nodered.org/t/mongodb-node-connection-problem/36608/1 "2020-11-27T06:13:20Z")

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It seems mongoDB node doesn't close connection properly.  
Is there any fix or way to use connection pool ?

azureuser@VM-ivision-ubuntu-16:~$ netstat -a | grep 27017  
tcp 0 0 \*:27017 _:_ LISTEN  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:42632 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:50134 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:47632 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:46454 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:47164 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:44194 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:52002 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:43160 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:42634 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:41814 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:36608 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:55438 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:47800 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:46132 ESTABLISHED  
.....  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:47808 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:51494 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:44590 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:49948 ESTABLISHED  
tcp 0 0 vm-ivision-ubuntu:27017 52.231.166.176:43086 ESTABLISHED  
unix 2 [ACC] STREAM LISTENING 11166903 /tmp/mongodb-27017.sock

> azureuser@VM-ivision-ubuntu-16:~$ netstat -a | grep 27017 | wc -l  
> 258

I'm using following node for mongoDB  
 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/c/9/c96694fef436ac5f075d0d789f1e6f45a42a539c.png)

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<div class="post-metadata">

### Author: ![sys4cad](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/sys4cad/32/28980_2.png) [@sys4cad](https://discourse.nodered.org/u/sys4cad)
#### Post date: [27 November 2020 06:42 UTC](https://discourse.nodered.org/t/mongodb-node-connection-problem/36608/2 "2020-11-27T06:42:49Z")

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[Solved]  
by replacing node-red-node-mongodb by node-red-contrib-mongodb  
Now I could see constant connection count as following.

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/f/f/ff8a18ccf31f0b9a66b238703e9cff30f96b5084.png)

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/0/9/09d3f04c91861eb4b7c350045dcba30fad6c5067.png)

network traffic is really goingdown.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/9/e/9eda4d373606bf5c2c9a22b6a6f01305f16cdd0d.png)

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<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)
#### Post date: [11 December 2020 06:42 UTC](https://discourse.nodered.org/t/mongodb-node-connection-problem/36608/3 "2020-12-11T06:42:55Z")

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