[카테고리:] Tow Story

• 환경
  CentOS 7 / RHEL 7
• 내용
  /var/log/message 로그에 다음 메시지 생성.

   

  session_start_scope() 의 함수로 출력되는 로그으로 시스템 문제로 인한 로그는 아니라고 한다.

Nov  3 19:00:01 localhost systemd: Created slice User Slice of root.
Nov  3 19:00:01 localhost systemd: Starting User Slice of root.
Nov  3 19:00:01 localhost systemd: Started Session 711 of user root.
Nov  3 19:00:01 localhost systemd: Starting Session 711 of user root.
Nov  3 19:00:01 localhost systemd: Removed slice User Slice of root.
Nov  3 19:00:01 localhost systemd: Stopping User Slice of root.
Nov  3 19:01:01 localhost systemd: Created slice User Slice of root.
Nov  3 19:01:01 localhost systemd: Starting User Slice of root.
Nov  3 19:01:01 localhost systemd: Started Session 712 of user root.
Nov  3 19:01:01 localhost systemd: Starting Session 712 of user root.
Nov  3 19:01:01 localhost systemd: Removed slice User Slice of root.
Nov  3 19:01:01 localhost systemd: Stopping User Slice of root.
Nov  3 19:10:01 localhost systemd: Created slice User Slice of root.

• 해결
  • rsyslog 삭제 필터 사용

    ] echo 'if $programname == "systemd" and ($msg contains "Starting Session" or $msg contains "Started Session" or $msg contains "Created slice" or $msg contains "Starting user-" or $msg contains "Starting User Slice of" or $msg contains "Removed session" or $msg contains "Removed slice User Slice of" or $msg contains "Stopping User Slice of") then stop' >/etc/rsyslog.d/ignore-systemd-session-slice.conf 
    ] systemctl restart rsyslog

  • systemd log level 조정
    • 명령을 통한 즉시 적용

      ] systemd-analyze set-log-level notice

    • systemd 설정 파일 수정 및 재 실행을 통한 영구 적용

      # 설정파일 수정
      ] vi /etc/systemd/system.conf
      ...
      [Manager]
      #LogLevel=info
      LogLevel=notice
      ...

      # Reexecute systemd manager
      ] systemctl daemon-reexec

      or

      # Reload systemd manager configuration
      ] systemctl daemon-reload

참고 : redhat customer portal , Doug’s Blog , RnDiT