rsyslog doesn't log all incoming messages

Solution Unverified - Updated -

Issue

  • On a system with configured rsyslog for incoming rules, not all the messages get logged
  • rsyslog has a high rate of UDP error
  • Udp: packet receive errors or Udp: RcvbufErrors in netstat -s
  • rsyslog dropping or missing logs when listening for logs from remote logging hosts

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • rsyslog listening for UDP log messages

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