SocketTimeout with opened connection in MongoDB

Question

I\'ve a Java application that performs some aggregations on MongoDB, but sometimes it just hangs and throw a SocketTimeout exception. After the Exception the app will run ju

Answer 1

If you experience socket errors between clients and servers or between members of a sharded cluster or replica set that do not have other reasonable causes, check the TCP keepalive value (for example, the tcp_keepalive_time value on Linux systems). A common keepalive period is 7200 seconds (2 hours); however, different distributions and macOS may have different settings.

For MongoDB, you will have better results with shorter keepalive periods, on the order of 120 seconds (two minutes).

Where you have installed mongodb you have to simply run this command on Linux

sudo sysctl -w net.ipv4.tcp_keepalive_time=120

Reference: Does TCP keepalive time affect MongoDB Deployments?