I am running a geth node following this on Ubuntu 16.04 following this https://goo.gl/FvAisy I am using locust to run load tests on this node.

However, as soon as the user count reaches 1024 the tests begin to fail and I start receving connection error. Basically, the node starts rejecting connections.

Following this, https://ethereum.stackexchange.com/a/25566/42466 I tried to increase the ulimit https://underyx.me/2015/05/18/raising-the-maximum-number-of-file-descriptors

$ ulimit -n

However, I still face the same error. Is there any setting on the RPC server or any other OS configuration that I should be testing?

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