[SPDK] SPDK Controller create failure

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Hi,
I was trying to create  1024 SPDK controller with 1 NS attached to each
SPDK controller. It creates upto 1023 SPDK controller but fails at 1024. Is
there any limitation on how many SPDK controller we can create in a single
Linux server ? I am using Ubuntu 20.04 Linux Server.

Here is screenshot of error message:

[2022-10-18 10:22:13.343807] nvmf_rpc.c: 416:rpc_nvmf_create_subsystem:
*ERROR*: Unable to create subsystem nqn.2016-06.io.spdk:cnode1023
request:
{
  "nqn": "nqn.2016-06.io.spdk:cnode1023",
  "serial_number": "SPDK0000000001023",
  "model_number": "SPDK_Controller1023",
  "allow_any_host": true,
  "method": "nvmf_create_subsystem",
  "req_id": 1
}
Got JSON-RPC error response
response:
{
  "code": -32603,
  "message": "Unable to create subsystem nqn.2016-06.io.spdk:cnode1023"
}
+ exit

Any help is appreciated.

Regards,
Niranjan

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