tcp input will time out

[TiaraH]

• Version: 6.2
• Operating System: Linux 7.4
• Config File (if you have sensitive info, please remove it):
  input {
  tcp {
  port => "9992"
  host => "0.0.0.0"
  }
  }

When I use JMS send json file to this input TCP port, there will get time out message sometimes.
But there is no error log in server, and next session will send success.
How can I check this issue?