Why malformed messages are being written by RSYSLOG daemon?

Solution Unverified - Updated -

Issue

  • We found some malformed messages in the log files managed by rsyslogd.
  • In each malformed message, two different messages are concatenated.
  • For example:
Jan 1 00:00:00 node1 Jan 1 00:00:00 node2.example.com message ...
  • In this case, the following two messages are cancatenated, and the first message is not a completed message.
    • Jan 1 00:00:00 node1
    • Jan 1 00:00:00 node2.example.com message ...
  • How did you avoid this problem?

Environment

  • Red Hat Enterprise Linux (RHEL) 6
  • rsyslog

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